Unit 6 同步练习 2025-2026学年沪教版（五四制）英语七年级下册

25年7BUnit 6 Trees Exercise 1(Viewing and listening) I. Fill in the blanks according to the phonetic transcriptions. 1. The trees have grown ________ as tall as the building. /ˈnɪəli/ 2. More and more people are concerned about ________ change. /ˈklaɪmət/ 3. The weather in the southern part of China is wet and ________. /ˈhjuːmɪd/ Keys：1-3 nearly climate humid Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. location B. shape C. strange D. valley 2. The park covers ________ area of more than 4,500 square kilometers. A. a B. an C. the D. / 3. The No.3 bus is always full ________ passengers during the rush hour. A. in B. for C. of D. with 4. Peter is going ________ a website for ideas about protecting trees. A. through B. on C. after D. off 5. We got a large number of ________ on tree protection from Mr. Chen. A. advice B. suggestion C. tips D. idea 6. I hope there ________ more people caring about trees in the future. A. will be B. have been C. were D. are 7. Nobody knows ________ trees in Russia have strange shapes. A. how B. what C. where D. why 8. Do you know what trees can give us? — ________. A. Trees are tall and strong B. Trees can offer us fruit and wood C. Trees work as doctors D. Trees can communicate with each other Keys：1-5 DBCAC 6-10ADB Ⅲ. Complete the following passage with the words or phrases in the box. Each can only be used once. A. growth B. far from C. climate D. count E. studying F. shape Everyone may know tree rings tell us how old a tree is. But do you know they can tell us what the weather was like? A tree grows well in a 1 ________ with lots of sunlight and rainfall. And little sunshine or rainfall limits the 2 ________ of a tree. We can see the change of the climate by 3 ________ the tree rings. For example, to find out the weather of ten years ago, we can 4 ________ the rings of a tree from the outside to the inside. If the tenth ring is 5 ________ the eleventh ring, then we are sure that it was sunny and rainy most in that year. If it is close to the eleventh ring, then the climate of that year was bad. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ Keys：1-5CAEDB IV. Complete the sentences with the given words in their proper forms. 1. From my window, I have a wonderful view of mountains and ________. (valley) 2. In spring trees are green and flowers are ________. (color) 3. John ________ the reason for his sudden return to London yesterday. (explanation) 4. It’s ________ that we haven’t heard from him for a long time. (stranger) 5. ________ are famous for their engineering skills. (Germany) Keys：1.valleys 2.colourful 3. explained 4. strange 5. Germans V. Rewrite the following sentences as required. 1. Joe has some ideas for the project on forests. (改为否定句) Joe ________ ________ any ideas for the project on forests. 2. The rainforest contains 48% of the world’s liquid water. (改为一般疑问句) ________ the rainforest ________ 48% of the world’s liquid water? 3. I want to see the trees with strange shapes in Russia. (对画线部分提问) ________ ________ of trees do you want to see? 4. The bottle on the table is full of water. (保持句义不变) The bottle on the table is ________ ________ water. 5. the daytime, the sun, during, can block out, thick trees (连词成句) ——————————————————————————————————————— Keys：1.doesn’t have 2. Does contain 3.What kind 4. filled with 5. Thick trees can block out the sun during the daytime. VI. Read and choose. Trees are important for us. There are many trees in the world. The world's oldest known living tree is Old Tjikko. It is in Sweden. People planted it during the last Ice Age, about 9,500 years ago. This spruce(云杉) looks more like a Charlie Brown Christmas Tree. A geologist(地质学家) named Leif Kullman found the tree. He named the tree after his dead dog. Methuselah, a pine tree planted by someone from California's White Mountains, is almost 5,000 years old. The real place of the tree is a secret, because the government wants to protect it well. There is a nut tree. It is in Sicily, an island in Italy. Nobody knows how old it is. It is about between 2,000 and 4,000 years old. Its name comes from an old story about fights. It is big, too. The tree holds the world record for girth(周长) — about 55 metres. 1. The writer mentioned ________ trees in the passage. A. one B. two C. three D. four 2. The underlined part “the tree” in Paragraph 2 refers to “________” A. Charlie Brown Christmas Tree B. Old Tjikko C. Methuselah D. an unnamed nut tree 3. The name of the world's oldest tree comes from ________ A. a Christmas tree B. an old story about fights C. a dead dog D. a famous geologist 4. The location of Methuselah is unknown to us because ________ A. the government wants to protect it B. the tree grows in the mountains far away C. the tree isn't real in the world D. the government needs it to break the record 5. Which of the statement is True? A. Trees in the passage are all in America. B. Old Tjikko was planted in the early Ice Age. C. Methuselah is younger than the nut tree. D. The nut tree in Sicily tops the list in girth. Keys：1-5CBCAD Exereise 2 (Speaking) I. Fill in the blanks according to the phonetic transcriptions. 1. She ________ as a nurse in the local hospital last year. /ˌvɒlənˈtɪəd/ 2. The waste has been taken to special centers for ________. /riːˈsaɪkəl/ 3. There's a beautiful park with lots of trees ________. /niə'bai/ Keys：1-3volunteered recycling nearby Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. protect B. environment C. contain D. forest 2. If we combine our efforts, we can make ________ difference for the future. A. a B. an C. the D. / 3. My kids spend hours chatting ________ the phone to their friends. A. in B. to C. on D. for 4. We can save forests ________ planting more trees and using less paper. A. from B. by C. in D. with 5. They encouraged him ________ to school with their company. A. went B. going C. to go D. gone 6. John isn't ________ to reach the apples on the tree. A. enough tall B. tall enough C. enough short D. short enough 7. ________ can I do as a student to support tree planting? A. How B. When C. Where D. What 8. - Hello! This is Kate speaking. May I speak to Tom? ________ A. Hold on, please B. I’m Tom C. Yes, you may D. Yes, I am Keys：1-5 DACBC 6-8 BDA Ⅲ. Complete the following passage with the words or phrases in the box. Each can only be used once. A. through B. huge amounts of C. age D. roots E. a number of F. produce Facts about trees Trees can live for thousands of years. Some trees can grow taller than 100 metres. Trees ________ oxygen(氧气) and reduce the amount of carbon dioxide(二氧化碳) in the air. The ________ of a tree usually grow underground. They help keep the tree stable and give it water and important nutrients(营养物). Water and nutrients travel up the tree trunk, ________ the branches and all the way out to the leaves. We can tell the ________ of a tree by growth rings in the wood. Planting trees can help protect the environment. We can use wood from trees in ________ different ways, for example, building a house and making furniture. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ Keys：1-5 FDACE IV. Complete the sentences with the given words in their proper forms. 1. The ________ are carefully chosen to show us the good of trees. (video) 2. Peter is reading some articles of ________ pollution in the room. (environment) 3. Trees can provide enough ________ against the wind and rain. (protect) 4. We teenagers should learn to take good ________ of the trees. (carefully) 5. The young man ________ a little girl from falling into the water. (safety) Keys： 1.videos 2. environmental 3. protection 4. care 5.saved V. Rewrite the following sentences as required. 1. I saw a leaflet for your club on the board. (改为否定句) I ________ ________ a leaflet for your club on the board. 2. We have to do some training before starting to work. (改为一般疑问句) ________ you ________ to do any training before starting to work? 3. The students came up with a new idea through group discussion. (对画线部分提问) ________ ________ the students come up with a new idea? 4. Tom usually looks after the little brother when Mum is at work. (保持句义不变) Tom usually ________ ________ the little brother when Mum is at work. 5. on, tree planting, are listening to, students, a talk, the science of (连词成句) ________________________________________________________________ Keys：1.didn’t see 2. Do have 3.How did 4. cares for 5. Students are listening to a talk on the science of tree planting. VI. Choose the best answer and complete the passage. A pine tree in California was regarded as the oldest tree in the world. People thought it was nearly 5,000 years old, but they couldn't be 1 ________. Then someone cut the tree down. Killing the oldest tree in the world was a 2 ________ thing to do. But when the tree was cut down, everyone knew its age. It was 4,900 years old. How can you 3 ________ the age of a tree? If you see a tree that has just been cut down, take a look at the cut part, you will see rings. There are little rings in the middle. Around each ring is a large ring. The ring near the bark(树皮) is the 4 ________ one of all. Count these rings. A tree 5 ________ one ring each year. A ten - year - old tree has ten rings. A sixty - year - old tree has sixty rings. How many rings does a 4,900 - year - old tree have? 1.A. amazed B. sure C. proud D. true 2.A. silly B. polite C. relaxing D. careful 3.A. remember B. trust C. correct D. tell 4.A. smallest B. biggest C. tallest D. shortest 5.A. tests B. covers C. grows D. locates Keys：1-5 BADBC Exercise 3(Reading 1) I. Fill in the blanks according to the phonetic transcriptions. 1. The ________ way to improve English is to practise more. /'beistk/ 2. This project ________ quite a bit of work and research. /ri'kwaiəz/ 3. Over 1.5 million people in Britain are ________. /vedʒə'teəriənz/ Keys：1-3 basic require vegetarian Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. climate B. article C. online D. hiker 2. According to Dr. Smith, eating less meat is ________ great help for trees. A. a B. an C. the D. / 3. There is a forest ________ the other side of the mountain. A.to B. for C. on D. in 4. Kate is old enough to take care ________ herself now. A. for B. at C. with D. of 5. ________ is not easy for gardeners to plant so many trees in the park. A. There B. That C. This D. It 6. We climbed higher ________ we might see the scenes better. A. in order to B. so that C. enough to D. because of 7. Don't forget ________ the umbrella with you, Tom. It's raining outside. A. take B. taking C. to take D. took 8. —What can I do for you, Sir? — ________. A. I'd like some bread B. You are welcome C. Thanks a lot D. I agree with you Keys：1-5 BACDD 6-8BCA Ⅲ. Complete the following passage with the words or phrases in the box. Each can only be used once. A. While B. board C. homes D. leaves E. When F. wooden Meeting Trees Here is a sample of the lessons found in this Meeting Trees unit study: Social Studies — Uses of Trees: Scott and his father used a 1 ________ from a walnut tree to make a stool for Scott's grandmother. Scott mentioned that his father made his bed and dresser and desk and that he also made his tree house and some 2 ________ toy trucks. What else do we get from trees? We get paper, fruit nuts, spices, instruments, shade and oxygen. Don't forget that animals get 3 ________! Occupations — Dendrologist: A scientist who studies trees is called a dendrologist. 4 ________ Scott and his father were not actual dendrologists, they did study trees very closely. They ran their fingers over the bark, traced the outline of the 5 ________, studied the nuts and fruits of the trees, etc. By doing so, Scott and his father learned a great deal about trees. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ Keys：1-5BFCAD IV. Complete the sentences with the given words in their proper forms. 1. Miss Guo gave me some useful ________ on English study. (tip) 2. It's our duty to show ________ to others around us. (kind) 3. There will be more trees and ________ pollution in the future. (little) 4. The manger is thinking of ways to make the staff work ________. (effective) 5. ________ the forests on the Earth is everyone's duty. (protection) Keys：1. tips 2.kindness 3.less 4.effectively 5. Protecting V. Rewrite the following sentences as required. 1. The park has to cut down some branches to keep the path clear. (改为一般疑问句) ________ the park ________ to cut down any branches to keep the path clear? 2. He read a piece of good news for us. (改为一般疑问句) ________ he ________ a piece of good news for us? 3. We put old leaves around the tree to protect its roots in winter. (对画线部分提问) ________ ________ you put old leaves around the tree in winter? 4. The little boy saved every coin so that he could buy his mum a present. (保持句义不变) The little boy saved every coin ________ ________ to buy his mum a present. 5. without meat, will, trees, trying a day, be helpful to (连词成句) _________________________________________________________________ Keys：1.Does have 2. Did read 3. Why do/did 4. so as/in order 5.Trying a day without meat will be helpful to trees. VI. Fill in the blanks with suitable words. How much do you know about redwood(红杉) forests? Do you want to go to a place like this? Walking in a redwood forest is l____1____ going back in time. In a redwood forest, you can find the redwood trees that are very tall. These tall trees can live to be hundreds of years old. If you are s____2____ next to the redwood trees, you will feel that you are very small because they are the tallest trees in the world! Usually the lifespan(寿命) of redwood trees is 500 to 700 years, and some can live 2,000 years. A lot of redwood trees grow in the north of California. The c ___3_____ there is cool and wet. It is good for the growing of redwood trees. There is a park n____4____ Redwood National Park in California. Every year, lots of visitors go there to see the big trees. Others just like driving along the long avenue(林荫大道) of the tall trees t____5____ the park and the places near it. Along the road they can enjoy the beautiful scenery(风景) there. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ Keys： 1.like 2. standing 3. climate 4. named 5. through Exercise 4(Reading Ⅱ) I. Fill in the blanks according to the phonetic transcriptions. 1. I can see the ________ of the trees moving back and forth. /'bræntʃiz/ 2. We are told to use resources more ________. /I'fektivli/ 3. Some people still think that it's not safe to shopping ________. /ˌɒnˈlaɪn/ Keys： 1. branches 2. effectively 3. online Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. root B. choose C. cool D. wood 2. Cycling is kind to the environment and it is ________ excellent way to take in the city. A. a B. an C. the D. / 3. Dr. Smith gave us a number of tips ________ protecting trees. A. on B. from C. at D. with 4. The air pollution will cause the rise of temperature. The underlined part means ________ A. care about B. get through C. lead to D. fill in 5. ________ second - hand books is an effective way to protect trees. A. Buy B. Bought C. Buying D. To buy 6. It's going to rain this afternoon so you ________ wash the car now. A. haven't B. aren't having C. don't have D. don't have to 7. _______ useful piece of advice Tom has offered! A. How B. What C. What a D. What an 8. —Shall we plant some trees on Tree - planting Day? — ________. A. It sounds great B. You are welcome C. That's all right D. Yes, I would Keys： 1-5.DBACC 6-8 DCA Ⅲ. Complete the following passage with the words or phrases in the box. Each can only be used once. A. recycle B. need C. both D. provide F. duty E. neither Trees are very important to the environment. They are homes to many animals and plants. Also, they 1 ________ people with food, fuel, medicine and so on. However, trees are in danger. People are cutting down millions of them every year. It's everyone's 2 ________ to protect them. In order to protect trees, here are ten ways to save paper. You are encouraged to: 1. get a library card, for you can borrow books and other reading materials with the card, reducing the 3 ________ for purchasing and consuming paper; 2. use old envelopes for scrap paper; 3. wrap gifts in old newspapers; 4. use 4 ________ sides of the printer paper; 5. stop buying paper calendars; 6. send electronic greeting cards; 7. read your newspaper online; 8. 5 ________ Christmas cards; 9. print only when necessary; 10. buy used textbooks. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ Keys：1-5 DFBCA IV. Complete the sentences with the given words in their proper forms. 1. Let's go into the forest and collect some ________ for a fire. (branch) 2. Tom suggested starting from simple reading and ________ skills. (base) 3. The forests can be ________ seen from the sky. (easy) 4. The work ________ a lot of patience and great ability. (requirement) 5. It's difficult to imagine what life will be like ________ trees. (with) Keys：1.branches 2. basic 3. easily 4. requires 5. without V. Rewrite the following sentences as required. 1. Kate did some surveys about how to protect trees. (改为否定句) Kate ________ ________ any surveys about how to protect trees. 2. He taught me how to work out the problem. (改为一般疑问句) ________ he ________ you how to work out the problem? 3. I won't go to the party because I am a vegetarian. (对画线部分提问) ________ ________ you go to the party? 4. The nurse opened the window in order to make the patients breathe fresh air. (保持句义不变) The nurse opened the window ________ ________ the patients could breathe fresh air. 5. is, save paper, sending and receiving payments, to, a great way (连词成句) _________________________________________________________________ Keys： 1.didn’t do 2. Did teach 3. Why won’t 4. so that 5.Sending and receiving payments is a great way to save paper. VI. Answer the following questions. Some people are not satisfied with normal hobbies. My friend has a strange hobby like that. He spends most time travelling to see the oldest things on Earth. Last year, he went to see a very old tree. It was 4,770 years old and was called Methuselah. It was a 15 - metre - tall tree and its trunk grows only a few centimetres a year. You might think that the old tree would need perfect conditions to live so long. But just the opposite is true. There is no enough water, and the soil has almost no nutrients(营养物). In fact, this tree's bad environment makes it strong. That's why it lives so long. When my friend returned from his trip to see Methuselah last year, he read an article about the world's oldest tree in a newspaper. He was surprised to hear that a tree was recently discovered in Sweden that is 9,550 years old. My friend doesn't give up. Next year, he's going to Sweden to see this tree. That's the way hobbies work. You set your goals, and ________ 1. What's the writer's friend's strange hobby? ______________________________________________________ 2. How tall is Methuselah? ______________________________________________________ 3. Why does Methuselah live so long? ______________________________________________________ 4. Where was the oldest tree found? ______________________________________________________ 5. Please complete the last sentence of the passage. ______________________________________________________ Keys：1. (His hobby is) spending most time travelling seeing the oldest things on Earth. 2.(It is) 15 metres high. 3.Because of the poor conditions and bad environment. 4.In Sweden. 5.you do what it takes to achieve them./you try your best to realize them.(Any reasonable answer is OK) Exercise 5(Grammar) I. Read the sentences and write down the numbers in Arabic forms. 1. There are five hundred and eighteen students in the hall. __________ 2. About four - fifths of them have planted trees before. __________ 3. They've planted six thousand and one trees in total. __________ 4. The survival rate of young trees is up to ninety - five percent. __________ 5. The forest covers about six point two five square kilometres. __________ Keys：1.518 2. 4/5 3. 6001 4.95% 5. 6.25 Ⅱ. Write the numbers in brackets in English. The Amazon Rainforest is located on the South American continent. About ________ (2/3) of the tropical rainforest is in Brazil, South America's largest country. The area of the Amazon rainforest is huge. About ________ (5%) of the land area of our planet is covered by the Amazon rainforest basin. The area of the rainforest covers about ________ (7,000,000) square km. Compared to Europe and the UK, the Amazon rainforest is ________ (75%) of the EU land area but is about ________ (28) times larger than the UK! The rainforest contains about ________ (1/3) of all animal and plant species on our planet. It is also home to about ________ (2.53) million insect species. Scientists predict that the Amazon will be affected greatly by deforestation and degradation by ________ (2050). Keys：two thirds ；five percent ；seven million ；seventy-five percent twenty-eight ；one third ；two point five three Ⅲ. Choose the best answer. 1. Hurry up! The train will arrive at 8 o'clock. — Don't worry! There's still ________ minutes left. It's just 7:40. A. twelfth B. twenty C. twelve D. twentieth 2. This is my ________ birthday in Shanghai and I have fallen in love with this city. A. twenty B. twenties C. twentieths D. twentieth 3. There are ________ people in Dale's family. They live on the ________ floor. A. five; nine B. fifth; nine C. five; ninth D. fifth; ninth 4. What should we do now? — Please turn to Page ________ and look at the ________ picture. A. Twelve; fifth B. Twelfth; fifth C. Twelve; five D. Twelfth; five 5. Which of the following is a fraction? A. 25% B. 2.5 C. 2/5 D. 25 6. In his ________, Charles began to write and soon became famous. A. twenty B. twenties C. twentieth D. twentieths 7. ________ the students in the school is about 3,000, and ________ of them are girls. A. A number of; two thirds B. The number of; two thirds C. A number of; two third D. The number of; two third Keys：1-5BDCAC 6-7BB IV. Fill in the blanks with the verbs in their proper forms. 1. Helen, it's your turn. You're the ________ one. (nine) 2. This Saturday is your ________ birthday. What about having a big dinner? (thirty) 3. The ________ car drives fastest in the race. (two) 4. Yesterday was the ________ of August. (twenty - one) 5. There are ________ mangoes in the basket. (eighteenth) 6. Forty ________ of the farmland has been planted to oil crops. (percentage) 7. Two ________ of the Grade Eight students entered for the sports meeting. (five) 8. The old man spent three ________ of his lifetime painting. (eight) 9. John took up rock climbing in his ________. (forty) 10. The bank celebrates its ________ anniversary in December. (hundred) Keys：1. ninth 2.thirtieth 3. second 4. twenty-first 5. eighteen 6. percent 7. fifths 8. eights 9.forties 10. hundredth V. Choose the proper verb to complete the sentence. 1. About four fifths of the books in the library ________ (is/are) written in Chinese. 2. Two fifths of the land in that district ________ (is/are) covered with trees and grass. 3. About one fifth of the students ________ (like/likes) reading English stories in our class. 4. Three fourths of my sister's pay ________ (is/are) spent on clothes. 5. Three fifths of the people in the city ________ (say/says) they have seen UFOs. Keys：1.are 2.is 3.like 4. is 5.say VI. Rewrite the sentences as required. 1. I've heard that Unit Five is the most difficult. (保持句义不变) I've heard that ________ ________ unit is the most difficult. 2. This is a 150 - metre - high building in the neighbourhood. (保持句义不变) This building is 150 ________ ________ in the neighbourhood. 3. We dug a three - foot - deep hole. (保持句义不变) The hole we dug is ________ ________ deep. 4. Though she's eighty years old, she's very healthy. (保持句义不变) Though she's ________ ________ woman, she's very healthy. 5. The school is about a five - minute walk from my home. (保持句义不变) The school is about ________ ________ walk from my home. 6. Alice took up playing the piano when she was over sixty. (保持句义不变) Alice took up playing the piano in________ ________. Keys：1.the fifth 2.metres high 3. Three feet 4. an eighty-year-old 5. five minutes’ 6. her sixties Exercise 6(Writing) I. Fill in the blanks according to the phonetic transcriptions. 1. This is the only shop in the village ________. /kə'mjunəti/ 2. It took me ________ weeks to search out the book. /'sevrəl/ 3. The company ________ that it would never cut down trees. /ˈprɒmɪst/ Keys：1.community 2. Several 3. promised Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. trunk B. support C. volunteer D. autumn 2. This small country has ________ amazing variety of trees. A. a B. an C. the D. / 3. Kate wants to share some tree planting experiences ________ us. A. to B. in C. from D. with 4. I stayed home ________ I wasn't feeling well. A. so B. but C. because D. though 5. Mr Smith hopes his son ________ a key senior high school. A. enters B. to enter C. will enter D. has entered 6. There were people at the entrance ________ leaflets. A. giving out B. giving up C. going out D. getting up 7. It is our responsibility to do our part ________ the environment clean. A. keep B. to keep C. kept D. keeping 8. Must I hand in the report now? — ________. You can leave it tomorrow, Lucy. A. Yes, you must B. No, you mustn't C. Yes, you need D. No, you don't have to Keys：1-5 ABDCC 6-8 ABD Ⅲ. Complete the sentences with the given words in their proper forms. 1. The flowers in the garden will bloom in three ________. (month) 2. About four ________ of the students know about the “Great Green Wall”. (five) 3. Peter and Tom grew up in the same ________. (neighbour) 4. After a ________ day of work, he was eager to go home at once. (tire) 5. Trees provide ________ shade and clean air for people. (coolness) Keys：1.months 2. fifths 3.neighbourhood 4. tiring 5. cool IV. Rewrite the following sentences as required. 1. Dad promised to give up smoking last night. (改为否定句) Dad ________ ________ to give up smoking last night. 2. Everyone can do great things for trees and the environment. (改为一般疑问句) ________ everyone ________ great things for trees and the environment? 3. I've learned the way to plant trees from Joe. (对画线部分提问) ________ ________ you learned from Joe? 4. After I put the earth back to the hole, I began to water the tree. (保持句义不变) ________ ________ the earth back to the hole, I began to water the tree. 5. will, time and energy, take, the task, a huge amount of (连词成句) ________________________________________________________________ Keys：1.didn’t promise2.Can do 3. What have 4. After putting 5. The task will take a huge amount of time and energy V. Complete the writing task according to the guide. D1 Think Read Lu Yao's blog post and think about why she wrote it. Lu Yao's blog In order to celebrate the Tree Planting Day and protect the environment, my school appealed for all students to take part in the tree planting activity yesterday. I joined in it because I wanted to do something for the environment. It was a pleasant day for planting trees. Our teacher led us to the suburb to plant trees. On arriving there, everybody went into action in no time. First, I dug a hole large enough for the root of the sapling. Next, Mary helped me put the tree into the hole and put the earth back in the hole again. Then we knocked some sticks into the earth next around the hole and tied the tree to the top of the sticks to keep it straight. Finally, we gave the tree some water. All of us thought it was meaningful even though we felt tired and hungry after working. We believe the world will become greener if everyone plays a part in tree planting. D2 Prepare How does Lu Yao organise her blog post? Match the paragraphs to their main ideas. Paragraph 1 ________ A. What she did in the tree planting B. How she felt about the activity C. Why she joined the tree planting activity Paragraph 2 ________ Paragraph 3 ________ D3 Plan Plan your writing. What I did for trees: ________ How I felt about the activity: ________ Keys：CAB D4 Write Write your blog post about you and trees. D5 Check Check your writing according to the checklist below. Checklist Yes No 1. Did I write about the activity of helping trees? 2. Did I write about the feelings about the activity? 3. Did I use the simple past tense correctly? ★ A busy day of planting trees benefits a hundred years. (栽树忙一天，利益得百年。) ★ Nowadays people raise trees, but tomorrow they raise people. (现在人养树，来日树养人。) ★ The forest belt network is better than the iron wall steel wall. (林带林网，赛过铁壁钢墙。) Exercise 7 I. Fill in the blanks with as required. 单词 中文释义 单词 中文释义 1. /'væli/ ———— ———— 2. /'klaimət/———— ———— 3. /ɪk'spleɪn/ ———— ———— 4. /'hju:mɪd/———— ———— 5. /'kʌvəridʒ/ ———— ———— 6. /vɒlənˈtɪə(r)/ ———— ———— 7. /prə'tekʃn/———— ———— 8. /ɪn'kʌrɪdʒ/———— ———— 9. /ri:'saɪkl/———— ———— 10. /æpli'keɪʃn/———— ———— 11. /bra:ntʃ/———— ———— 12. /ri'kwaɪə(r)/ ———— ———— 13. /'dæmɪdʒ/———— ———— 14. /vedʒə'teərian/———— ———— 15. /rɪ'si:v/ ———— ———— 16. /səˈpɔ:t/ ———— ———— 17. /wɪdθ/ ———— ———— 18. /spred/ ———— ———— 19. /'beɪsɪk/———— ———— 20. /kə'mju:nətɪ/ ———— ———— 单词 中文释义 单词 中文释义 1. valley 山谷 2. climate 气候 3. explain解释 4. humid 潮湿的 5. coverage 范围 6. volunteer志愿者 7. protection保护 8. encourage鼓励 9. recycle回收 10. application申请 11. / branch树枝 12. require 需要 13. damage破坏 14. vegetarian素食者 15. receive收到 16. support 支持 17. width宽度 18. spread 传播 19. basic基础的 20. community 社区 Ⅱ. Write the words according to their grammatical forms. 1.n.颜色 ________ 2. v.解释 ________ adj.五彩缤纷的 ________ n.解释 ________ 3. n.湿度 ________ 4. v.覆盖 ________ adj.潮湿的 ________ n.覆盖面 ________ 5.v.定位 ________ 6. prep.在…附近 ________ n.位置 ________ adj.附近的 ________ 7. n.环境 ________ 8. v.保护 ________ adj.环境的 ________ n.保护________ 9. n.勇气 ________ 10. v.循环________ v.鼓励 ________ v.回收利用 ________ 11.v.应用 ________ 12. n.基础 ________ n.应用 ________ adj.基础的________ 13. adj.善良的 ________ 14. n.作用,效果 ________ n.善良 ________ adv.有效地 ________ 15. n.要求 ________ 16. adj.宽的 ________ v.要求 ________ n. 宽度 ________ 17. adj.高的 ________ 18. adj.长的 ________ n.高度 ________ n. 长度________ 19. n.德国 ________ 20. n.俄国________ adj./n.德国的；德国人；德语 ________ adj./n.俄国的;俄国人;俄语________ Keys：1. color n.颜色 2. explain v.解释 colorful adj.五彩缤纷的 explanation n.解释 3. humidity n.湿度 4. cover v.覆盖 humid adj.潮湿的 coverage n.覆盖面 5. locate v，定位 6. near nearby adj.附近的 location n.位置 prep.在…附近 7.environment n.环境 8. protect v.保护 environmental adj.环境的 protection n.保护 9. courage n.勇气 10.cycle v.循环 encourage v.鼓励 recycle v.回收利用 11.apply v.应用 12. base n.基础 Application n.应用 basic adj.基础的 13.kind adj.善良的 14.effect n.作用,效果 kindness n.善良 effectively adv.有效地 15. requirement n.要求 16. wide adj.宽的 require v.要求 width n.宽度 17. height n.高度 18. long adj.长的 high adj.高的 length n.长度 19.Germany n.德国 20.Russian.俄国 German adj./n.德国的;德国人;德语 Russian adj./n.俄国的;俄国人;俄语 III. Translate the phrases or sentences into English. 1. 浏览一个网站____________________________2. 遮挡太阳 ____________________________ 3. 许多的(只能修饰可数名词)____________________________4. 充满了 ____________________________ 5. 起作用,有影响 ____________________________6. 志愿做某事 ____________________________ 7. 照顾树木 ____________________________8. 环保 ____________________________ 9. 通过学习小组 ____________________________10. 鼓励某人做某事 ____________________________ 11. 通过回收节约木材 ____________________________12. 填一张申请表 ____________________________ 13. 每个人的职责 ____________________________14. 不同种类的 ____________________________ 15. 打印更少的纸张 ____________________________16. 一个很棒的方法 ____________________________ 17. 买二手书 ____________________________18. 需要很多空间 ____________________________ 19. 导致破坏 ____________________________20. 成为一个素食者____________________________ 21. 没有人能解释为什么这些树有奇怪的形状。____________________________ 22. Cathy 志愿照顾阳光公园附近的树木。_____________________________________________________________________________ 23. 志愿者们能通过讨论和学习小组了解环境保护。_____________________________________________________________________________ 24. 即使一棵小树也能给环境带来影响。_____________________________________________________________________________ 25. 他们已经种了很多树以便于鸟和动物们能住在森林里。_____________________________________________________________________________ 26. 我们可以通过在纸张的两面写字来节约木材。_____________________________________________________________________________ 27. 在线支付是节约纸张的一个很棒的方法。_____________________________________________________________________________ 28. 帮助树木的一个基本方法是多种树少砍树。_____________________________________________________________________________ IV. Think about the “Big Question” again and try to answer it by using what you have learned in this unit. Q: What do trees mean to us? 2 学科网（北京）股份有限公司 Keys：1. go through a website 2. block out the sun 3. a large number of 4. be full of 5. make a difference 6. volunteer to do sth 7. take care of the trees 8. environmental protection 9. through study groups 10. encourage sb to do sth 11. save wood by recycling 12. fill in an application form 13. everyone's duty 14. different kinds of 15. print less paper 16. an excellent way 17. buy second - hand books 18. require a lot of space 19. lead to the damage 20. become a vegetarian 21. No one can explain why 22. volunteers to take care of the trees 23. learn about environmental protection through talks 24. make a difference to the environment 25. have planted a large number of trees so that 26. save wood by writing on both sides of the paper 27. Paying online is an excellent way to save paper 28. One basic way to help trees is to plant more trees and cut down fewer treesTrees are of great importance to us. They can help us in many different ways. For example, they can provide us with wood, fruit and rubber for us. They can also stop the sand from turning everything into a big desert. Besides, trees can make us feel cooler during the hot summer months. Without trees, we would die. Therefore, it's everyone's duty to protect the trees. $ 25年7BUnit 6 Trees Exercise 1(Viewing and listening) I. Fill in the blanks according to the phonetic transcriptions. 1. The trees have grown ________ as tall as the building. /ˈnɪəli/ 2. More and more people are concerned about ________ change. /ˈklaɪmət/ 3. The weather in the southern part of China is wet and ________. /ˈhjuːmɪd/ Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. location B. shape C. strange D. valley 2. The park covers ________ area of more than 4,500 square kilometers. A. a B. an C. the D. / 3. The No.3 bus is always full ________ passengers during the rush hour. A. in B. for C. of D. with 4. Peter is going ________ a website for ideas about protecting trees. A. through B. on C. after D. off 5. We got a large number of ________ on tree protection from Mr. Chen. A. advice B. suggestion C. tips D. idea 6. I hope there ________ more people caring about trees in the future. A. will be B. have been C. were D. are 7. Nobody knows ________ trees in Russia have strange shapes. A. how B. what C. where D. why 8. Do you know what trees can give us? — ________. A. Trees are tall and strong B. Trees can offer us fruit and wood C. Trees work as doctors D. Trees can communicate with each other Ⅲ. Complete the following passage with the words or phrases in the box. Each can only be used once. A. growth B. far from C. climate D. count E. studying F. shape Everyone may know tree rings tell us how old a tree is. But do you know they can tell us what the weather was like? A tree grows well in a 1 ________ with lots of sunlight and rainfall. And little sunshine or rainfall limits the 2 ________ of a tree. We can see the change of the climate by 3 ________ the tree rings. For example, to find out the weather of ten years ago, we can 4 ________ the rings of a tree from the outside to the inside. If the tenth ring is 5 ________ the eleventh ring, then we are sure that it was sunny and rainy most in that year. If it is close to the eleventh ring, then the climate of that year was bad. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ IV. Complete the sentences with the given words in their proper forms. 1. From my window, I have a wonderful view of mountains and ________. (valley) 2. In spring trees are green and flowers are ________. (color) 3. John ________ the reason for his sudden return to London yesterday. (explanation) 4. It’s ________ that we haven’t heard from him for a long time. (stranger) 5. ________ are famous for their engineering skills. (Germany) V. Rewrite the following sentences as required. 1. Joe has some ideas for the project on forests. (改为否定句) Joe ________ ________ any ideas for the project on forests. 2. The rainforest contains 48% of the world’s liquid water. (改为一般疑问句) ________ the rainforest ________ 48% of the world’s liquid water? 3. I want to see the trees with strange shapes in Russia. (对画线部分提问) ________ ________ of trees do you want to see? 4. The bottle on the table is full of water. (保持句义不变) The bottle on the table is ________ ________ water. 5. the daytime, the sun, during, can block out, thick trees (连词成句) ——————————————————————————————————————— VI. Read and choose. Trees are important for us. There are many trees in the world. The world's oldest known living tree is Old Tjikko. It is in Sweden. People planted it during the last Ice Age, about 9,500 years ago. This spruce(云杉) looks more like a Charlie Brown Christmas Tree. A geologist(地质学家) named Leif Kullman found the tree. He named the tree after his dead dog. Methuselah, a pine tree planted by someone from California's White Mountains, is almost 5,000 years old. The real place of the tree is a secret, because the government wants to protect it well. There is a nut tree. It is in Sicily, an island in Italy. Nobody knows how old it is. It is about between 2,000 and 4,000 years old. Its name comes from an old story about fights. It is big, too. The tree holds the world record for girth(周长) — about 55 metres. 1. The writer mentioned ________ trees in the passage. A. one B. two C. three D. four 2. The underlined part “the tree” in Paragraph 2 refers to “________” A. Charlie Brown Christmas Tree B. Old Tjikko C. Methuselah D. an unnamed nut tree 3. The name of the world's oldest tree comes from ________ A. a Christmas tree B. an old story about fights C. a dead dog D. a famous geologist 4. The location of Methuselah is unknown to us because ________ A. the government wants to protect it B. the tree grows in the mountains far away C. the tree isn't real in the world D. the government needs it to break the record 5. Which of the statement is True? A. Trees in the passage are all in America. B. Old Tjikko was planted in the early Ice Age. C. Methuselah is younger than the nut tree. D. The nut tree in Sicily tops the list in girth. Exereise 2 (Speaking) I. Fill in the blanks according to the phonetic transcriptions. 1. She ________ as a nurse in the local hospital last year. /ˌvɒlənˈtɪəd/ 2. The waste has been taken to special centers for ________. /riːˈsaɪkəl/ 3. There's a beautiful park with lots of trees ________. /niə'bai/ Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. protect B. environment C. contain D. forest 2. If we combine our efforts, we can make ________ difference for the future. A. a B. an C. the D. / 3. My kids spend hours chatting ________ the phone to their friends. A. in B. to C. on D. for 4. We can save forests ________ planting more trees and using less paper. A. from B. by C. in D. with 5. They encouraged him ________ to school with their company. A. went B. going C. to go D. gone 6. John isn't ________ to reach the apples on the tree. A. enough tall B. tall enough C. enough short D. short enough 7. ________ can I do as a student to support tree planting? A. How B. When C. Where D. What 8. - Hello! This is Kate speaking. May I speak to Tom? ________ A. Hold on, please B. I’m Tom C. Yes, you may D. Yes, I am Ⅲ. Complete the following passage with the words or phrases in the box. Each can only be used once. A. through B. huge amounts of C. age D. roots E. a number of F. produce Facts about trees Trees can live for thousands of years. Some trees can grow taller than 100 metres. Trees ________ oxygen(氧气) and reduce the amount of carbon dioxide(二氧化碳) in the air. The ________ of a tree usually grow underground. They help keep the tree stable and give it water and important nutrients(营养物). Water and nutrients travel up the tree trunk, ________ the branches and all the way out to the leaves. We can tell the ________ of a tree by growth rings in the wood. Planting trees can help protect the environment. We can use wood from trees in ________ different ways, for example, building a house and making furniture. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ IV. Complete the sentences with the given words in their proper forms. 1. The ________ are carefully chosen to show us the good of trees. (video) 2. Peter is reading some articles of ________ pollution in the room. (environment) 3. Trees can provide enough ________ against the wind and rain. (protect) 4. We teenagers should learn to take good ________ of the trees. (carefully) 5. The young man ________ a little girl from falling into the water. (safety) V. Rewrite the following sentences as required. 1. I saw a leaflet for your club on the board. (改为否定句) I ________ ________ a leaflet for your club on the board. 2. We have to do some training before starting to work. (改为一般疑问句) ________ you ________ to do any training before starting to work? 3. The students came up with a new idea through group discussion. (对画线部分提问) ________ ________ the students come up with a new idea? 4. Tom usually looks after the little brother when Mum is at work. (保持句义不变) Tom usually ________ ________ the little brother when Mum is at work. 5. on, tree planting, are listening to, students, a talk, the science of (连词成句) ________________________________________________________________ VI. Choose the best answer and complete the passage. A pine tree in California was regarded as the oldest tree in the world. People thought it was nearly 5,000 years old, but they couldn't be 1 ________. Then someone cut the tree down. Killing the oldest tree in the world was a 2 ________ thing to do. But when the tree was cut down, everyone knew its age. It was 4,900 years old. How can you 3 ________ the age of a tree? If you see a tree that has just been cut down, take a look at the cut part, you will see rings. There are little rings in the middle. Around each ring is a large ring. The ring near the bark(树皮) is the 4 ________ one of all. Count these rings. A tree 5 ________ one ring each year. A ten - year - old tree has ten rings. A sixty - year - old tree has sixty rings. How many rings does a 4,900 - year - old tree have? 1.A. amazed B. sure C. proud D. true 2.A. silly B. polite C. relaxing D. careful 3.A. remember B. trust C. correct D. tell 4.A. smallest B. biggest C. tallest D. shortest 5.A. tests B. covers C. grows D. locates Exercise 3(Reading 1) I. Fill in the blanks according to the phonetic transcriptions. 1. The ________ way to improve English is to practise more. /'beistk/ 2. This project ________ quite a bit of work and research. /ri'kwaiəz/ 3. Over 1.5 million people in Britain are ________. /vedʒə'teəriənz/ Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. climate B. article C. online D. hiker 2. According to Dr. Smith, eating less meat is ________ great help for trees. A. a B. an C. the D. / 3. There is a forest ________ the other side of the mountain. A.to B. for C. on D. in 4. Kate is old enough to take care ________ herself now. A. for B. at C. with D. of 5. ________ is not easy for gardeners to plant so many trees in the park. A. There B. That C. This D. It 6. We climbed higher ________ we might see the scenes better. A. in order to B. so that C. enough to D. because of 7. Don't forget ________ the umbrella with you, Tom. It's raining outside. A. take B. taking C. to take D. took 8. —What can I do for you, Sir? — ________. A. I'd like some bread B. You are welcome C. Thanks a lot D. I agree with you Ⅲ. Complete the following passage with the words or phrases in the box. Each can only be used once. A. While B. board C. homes D. leaves E. When F. wooden Meeting Trees Here is a sample of the lessons found in this Meeting Trees unit study: Social Studies — Uses of Trees: Scott and his father used a 1 ________ from a walnut tree to make a stool for Scott's grandmother. Scott mentioned that his father made his bed and dresser and desk and that he also made his tree house and some 2 ________ toy trucks. What else do we get from trees? We get paper, fruit nuts, spices, instruments, shade and oxygen. Don't forget that animals get 3 ________! Occupations — Dendrologist: A scientist who studies trees is called a dendrologist. 4 ________ Scott and his father were not actual dendrologists, they did study trees very closely. They ran their fingers over the bark, traced the outline of the 5 ________, studied the nuts and fruits of the trees, etc. By doing so, Scott and his father learned a great deal about trees. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ IV. Complete the sentences with the given words in their proper forms. 1. Miss Guo gave me some useful ________ on English study. (tip) 2. It's our duty to show ________ to others around us. (kind) 3. There will be more trees and ________ pollution in the future. (little) 4. The manger is thinking of ways to make the staff work ________. (effective) 5. ________ the forests on the Earth is everyone's duty. (protection) V. Rewrite the following sentences as required. 1. The park has to cut down some branches to keep the path clear. (改为一般疑问句) ________ the park ________ to cut down any branches to keep the path clear? 2. He read a piece of good news for us. (改为一般疑问句) ________ he ________ a piece of good news for us? 3. We put old leaves around the tree to protect its roots in winter. (对画线部分提问) ________ ________ you put old leaves around the tree in winter? 4. The little boy saved every coin so that he could buy his mum a present. (保持句义不变) The little boy saved every coin ________ ________ to buy his mum a present. 5. without meat, will, trees, trying a day, be helpful to (连词成句) _________________________________________________________________ VI. Fill in the blanks with suitable words. How much do you know about redwood(红杉) forests? Do you want to go to a place like this? Walking in a redwood forest is l____1____ going back in time. In a redwood forest, you can find the redwood trees that are very tall. These tall trees can live to be hundreds of years old. If you are s____2____ next to the redwood trees, you will feel that you are very small because they are the tallest trees in the world! Usually the lifespan(寿命) of redwood trees is 500 to 700 years, and some can live 2,000 years. A lot of redwood trees grow in the north of California. The c ___3_____ there is cool and wet. It is good for the growing of redwood trees. There is a park n____4____ Redwood National Park in California. Every year, lots of visitors go there to see the big trees. Others just like driving along the long avenue(林荫大道) of the tall trees t____5____ the park and the places near it. Along the road they can enjoy the beautiful scenery(风景) there. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ Exercise 4(Reading Ⅱ) I. Fill in the blanks according to the phonetic transcriptions. 1. I can see the ________ of the trees moving back and forth. /'bræntʃiz/ 2. We are told to use resources more ________. /ɪ'fektivli/ 3. Some people still think that it's not safe to shopping ________. /ˌɒnˈlaɪn/ Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. root B. choose C. cool D. wood 2. Cycling is kind to the environment and it is ________ excellent way to take in the city. A. a B. an C. the D. / 3. Dr. Smith gave us a number of tips ________ protecting trees. A. on B. from C. at D. with 4. The air pollution will cause the rise of temperature. The underlined part means ________ A. care about B. get through C. lead to D. fill in 5. ________ second - hand books is an effective way to protect trees. A. Buy B. Bought C. Buying D. To buy 6. It's going to rain this afternoon so you ________ wash the car now. A. haven't B. aren't having C. don't have D. don't have to 7. _______ useful piece of advice Tom has offered! A. How B. What C. What a D. What an 8. —Shall we plant some trees on Tree - planting Day? — ________. A. It sounds great B. You are welcome C. That's all right D. Yes, I would Ⅲ. Complete the following passage with the words or phrases in the box. Each can only be used once. A. recycle B. need C. both D. provide F. duty E. neither Trees are very important to the environment. They are homes to many animals and plants. Also, they 1 ________ people with food, fuel, medicine and so on. However, trees are in danger. People are cutting down millions of them every year. It's everyone's 2 ________ to protect them. In order to protect trees, here are ten ways to save paper. You are encouraged to: 1. get a library card, for you can borrow books and other reading materials with the card, reducing the 3 ________ for purchasing and consuming paper; 2. use old envelopes for scrap paper; 3. wrap gifts in old newspapers; 4. use 4 ________ sides of the printer paper; 5. stop buying paper calendars; 6. send electronic greeting cards; 7. read your newspaper online; 8. 5 ________ Christmas cards; 9. print only when necessary; 10. buy used textbooks. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ IV. Complete the sentences with the given words in their proper forms. 1. Let's go into the forest and collect some ________ for a fire. (branch) 2. Tom suggested starting from simple reading and ________ skills. (base) 3. The forests can be ________ seen from the sky. (easy) 4. The work ________ a lot of patience and great ability. (requirement) 5. It's difficult to imagine what life will be like ________ trees. (with) V. Rewrite the following sentences as required. 1. Kate did some surveys about how to protect trees. (改为否定句) Kate ________ ________ any surveys about how to protect trees. 2. He taught me how to work out the problem. (改为一般疑问句) ________ he ________ you how to work out the problem? 3. I won't go to the party because I am a vegetarian. (对画线部分提问) ________ ________ you go to the party? 4. The nurse opened the window in order to make the patients breathe fresh air. (保持句义不变) The nurse opened the window ________ ________ the patients could breathe fresh air. 5. is, save paper, sending and receiving payments, to, a great way (连词成句) _________________________________________________________________ VI. Answer the following questions. Some people are not satisfied with normal hobbies. My friend has a strange hobby like that. He spends most time travelling to see the oldest things on Earth. Last year, he went to see a very old tree. It was 4,770 years old and was called Methuselah. It was a 15 - metre - tall tree and its trunk grows only a few centimetres a year. You might think that the old tree would need perfect conditions to live so long. But just the opposite is true. There is no enough water, and the soil has almost no nutrients(营养物). In fact, this tree's bad environment makes it strong. That's why it lives so long. When my friend returned from his trip to see Methuselah last year, he read an article about the world's oldest tree in a newspaper. He was surprised to hear that a tree was recently discovered in Sweden that is 9,550 years old. My friend doesn't give up. Next year, he's going to Sweden to see this tree. That's the way hobbies work. You set your goals, and ________ 1. What's the writer's friend's strange hobby? ______________________________________________________ 2. How tall is Methuselah? ______________________________________________________ 3. Why does Methuselah live so long? ______________________________________________________ 4. Where was the oldest tree found? ______________________________________________________ 5. Please complete the last sentence of the passage. ______________________________________________________ Exercise 5(Grammar) I. Read the sentences and write down the numbers in Arabic forms. 1. There are five hundred and eighteen students in the hall. __________ 2. About four - fifths of them have planted trees before. __________ 3. They've planted six thousand and one trees in total. __________ 4. The survival rate of young trees is up to ninety - five percent. __________ 5. The forest covers about six point two five square kilometres. __________ Ⅱ. Write the numbers in brackets in English. The Amazon Rainforest is located on the South American continent. About ________ (2/3) of the tropical rainforest is in Brazil, South America's largest country. The area of the Amazon rainforest is huge. About ________ (5%) of the land area of our planet is covered by the Amazon rainforest basin. The area of the rainforest covers about ________ (7,000,000) square km. Compared to Europe and the UK, the Amazon rainforest is ________ (75%) of the EU land area but is about ________ (28) times larger than the UK! The rainforest contains about ________ (1/3) of all animal and plant species on our planet. It is also home to about ________ (2.53) million insect species. Scientists predict that the Amazon will be affected greatly by deforestation and degradation by ________ (2050). Ⅲ. Choose the best answer. 1. Hurry up! The train will arrive at 8 o'clock. — Don't worry! There's still ________ minutes left. It's just 7:40. A. twelfth B. twenty C. twelve D. twentieth 2. This is my ________ birthday in Shanghai and I have fallen in love with this city. A. twenty B. twenties C. twentieths D. twentieth 3. There are ________ people in Dale's family. They live on the ________ floor. A. five; nine B. fifth; nine C. five; ninth D. fifth; ninth 4. What should we do now? — Please turn to Page ________ and look at the ________ picture. A. Twelve; fifth B. Twelfth; fifth C. Twelve; five D. Twelfth; five 5. Which of the following is a fraction? A. 25% B. 2.5 C. 2/5 D. 25 6. In his ________, Charles began to write and soon became famous. A. twenty B. twenties C. twentieth D. twentieths 7. ________ the students in the school is about 3,000, and ________ of them are girls. A. A number of; two thirds B. The number of; two thirds C. A number of; two third D. The number of; two third IV. Fill in the blanks with the verbs in their proper forms. 1. Helen, it's your turn. You're the ________ one. (nine) 2. This Saturday is your ________ birthday. What about having a big dinner? (thirty) 3. The ________ car drives fastest in the race. (two) 4. Yesterday was the ________ of August. (twenty - one) 5. There are ________ mangoes in the basket. (eighteenth) 6. Forty ________ of the farmland has been planted to oil crops. (percentage) 7. Two ________ of the Grade Eight students entered for the sports meeting. (five) 8. The old man spent three ________ of his lifetime painting. (eight) 9. John took up rock climbing in his ________. (forty) 10. The bank celebrates its ________ anniversary in December. (hundred) V. Choose the proper verb to complete the sentence. 1. About four fifths of the books in the library ________ (is/are) written in Chinese. 2. Two fifths of the land in that district ________ (is/are) covered with trees and grass. 3. About one fifth of the students ________ (like/likes) reading English stories in our class. 4. Three fourths of my sister's pay ________ (is/are) spent on clothes. 5. Three fifths of the people in the city ________ (say/says) they have seen UFOs. VI. Rewrite the sentences as required. 1. I've heard that Unit Five is the most difficult. (保持句义不变) I've heard that ________ ________ unit is the most difficult. 2. This is a 150 - metre - high building in the neighbourhood. (保持句义不变) This building is 150 ________ ________ in the neighbourhood. 3. We dug a three - foot - deep hole. (保持句义不变) The hole we dug is ________ ________ deep. 4. Though she's eighty years old, she's very healthy. (保持句义不变) Though she's ________ ________ woman, she's very healthy. 5. The school is about a five - minute walk from my home. (保持句义不变) The school is about ________ ________ walk from my home. 6. Alice took up playing the piano when she was over sixty. (保持句义不变) Alice took up playing the piano in________ ________. Exercise 6(Writing) I. Fill in the blanks according to the phonetic transcriptions. 1. This is the only shop in the village ________. /kə'mjunəti/ 2. It took me ________ weeks to search out the book. /'sevrəl/ 3. The company ________ that it would never cut down trees. /ˈprɒmɪst/ Ⅱ. Choose the best answer. 1. Which of the following underlined parts is different in pronunciation from the others? A. trunk B. support C. volunteer D. autumn 2. This small country has ________ amazing variety of trees. A. a B. an C. the D. / 3. Kate wants to share some tree planting experiences ________ us. A. to B. in C. from D. with 4. I stayed home ________ I wasn't feeling well. A. so B. but C. because D. though 5. Mr Smith hopes his son ________ a key senior high school. A. enters B. to enter C. will enter D. has entered 6. There were people at the entrance ________ leaflets. A. giving out B. giving up C. going out D. getting up 7. It is our responsibility to do our part ________ the environment clean. A. keep B. to keep C. kept D. keeping 8. Must I hand in the report now? — ________. You can leave it tomorrow, Lucy. A. Yes, you must B. No, you mustn't C. Yes, you need D. No, you don't have to Ⅲ. Complete the sentences with the given words in their proper forms. 1. The flowers in the garden will bloom in three ________. (month) 2. About four ________ of the students know about the “Great Green Wall”. (five) 3. Peter and Tom grew up in the same ________. (neighbour) 4. After a ________ day of work, he was eager to go home at once. (tire) 5. Trees provide ________ shade and clean air for people. (coolness) IV. Rewrite the following sentences as required. 1. Dad promised to give up smoking last night. (改为否定句) Dad ________ ________ to give up smoking last night. 2. Everyone can do great things for trees and the environment. (改为一般疑问句) ________ everyone ________ great things for trees and the environment? 3. I've learned the way to plant trees from Joe. (对画线部分提问) ________ ________ you learned from Joe? 4. After I put the earth back to the hole, I began to water the tree. (保持句义不变) ________ ________ the earth back to the hole, I began to water the tree. 5. will, time and energy, take, the task, a huge amount of (连词成句) ________________________________________________________________ V. Complete the writing task according to the guide. D1 Think Read Lu Yao's blog post and think about why she wrote it. Lu Yao's blog In order to celebrate the Tree Planting Day and protect the environment, my school appealed for all students to take part in the tree planting activity yesterday. I joined in it because I wanted to do something for the environment. It was a pleasant day for planting trees. Our teacher led us to the suburb to plant trees. On arriving there, everybody went into action in no time. First, I dug a hole large enough for the root of the sapling. Next, Mary helped me put the tree into the hole and put the earth back in the hole again. Then we knocked some sticks into the earth next around the hole and tied the tree to the top of the sticks to keep it straight. Finally, we gave the tree some water. All of us thought it was meaningful even though we felt tired and hungry after working. We believe the world will become greener if everyone plays a part in tree planting. D2 Prepare How does Lu Yao organise her blog post? Match the paragraphs to their main ideas. Paragraph 1 ________ A. What she did in the tree planting B. How she felt about the activity C. Why she joined the tree planting activity Paragraph 2 ________ Paragraph 3 ________ D3 Plan Plan your writing. What I did for trees: ________ How I felt about the activity: ________ D4 Write Write your blog post about you and trees. D5 Check Check your writing according to the checklist below. Checklist Yes No 1. Did I write about the activity of helping trees? 2. Did I write about the feelings about the activity? 3. Did I use the simple past tense correctly? ★ A busy day of planting trees benefits a hundred years. (栽树忙一天，利益得百年。) ★ Nowadays people raise trees, but tomorrow they raise people. (现在人养树，来日树养人。) ★ The forest belt network is better than the iron wall steel wall. (林带林网，赛过铁壁钢墙。) Exercise 7 I. Fill in the blanks with as required. 单词 中文释义 单词 中文释义 1. /'væli/ ———— ———— 2. /'klaimət/———— ———— 3. /ɪk'spleɪn/ ———— ———— 4. /'hju:mɪd/———— ———— 5. /'kʌvəridʒ/ ———— ———— 6. /vɒlənˈtɪə(r)/ ———— ———— 7. /prə'tekʃn/———— ———— 8. /ɪn'kʌrɪdʒ/———— ———— 9. /ri:'saɪkl/———— ———— 10. /æpli'keɪʃn/———— ———— 11. /bra:ntʃ/———— ———— 12. /ri'kwaɪə(r)/ ———— ———— 13. /'dæmɪdʒ/———— ———— 14. /vedʒə'teərian/———— ———— 15. /rɪ'si:v/ ———— ———— 16. /səˈpɔ:t/ ———— ———— 17. /wɪdθ/ ———— ———— 18. /spred/ ———— ———— 19. /'beɪsɪk/———— ———— 20. /kə'mju:nətɪ/ ———— ———— Ⅱ. Write the words according to their grammatical forms. 1.n.颜色 ________ 2. v.解释 ________ adj.五彩缤纷的 ________ n.解释 ________ 3. n.湿度 ________ 4. v.覆盖 ________ adj.潮湿的 ________ n.覆盖面 ________ 5.v.定位 ________ 6. prep.在…附近 ________ n.位置 ________ adj.附近的 ________ 7. n.环境 ________ 8. v.保护 ________ adj.环境的 ________ n.保护________ 9. n.勇气 ________ 10. v.循环________ v.鼓励 ________ v.回收利用 ________ 11.v.应用 ________ 12. n.基础 ________ n.应用 ________ adj.基础的________ 13. adj.善良的 ________ 14. n.作用,效果 ________ n.善良 ________ adv.有效地 ________ 15. n.要求 ________ 16. adj.宽的 ________ v.要求 ________ n. 宽度 ________ 17. adj.高的 ________ 18. adj.长的 ________ n.高度 ________ n. 长度________ 19. n.德国 ________ 20. n.俄国________ adj./n.德国的；德国人；德语 ________ adj./n.俄国的;俄国人;俄语________ III. Translate the phrases or sentences into English. 1. 浏览一个网站____________________________2. 遮挡太阳 ____________________________ 3. 许多的(只能修饰可数名词)____________________________4. 充满了 ____________________________ 5. 起作用,有影响 ____________________________6. 志愿做某事 ____________________________ 7. 照顾树木 ____________________________8. 环保 ____________________________ 9. 通过学习小组 ____________________________10. 鼓励某人做某事 ____________________________ 11. 通过回收节约木材 ____________________________12. 填一张申请表 ____________________________ 13. 每个人的职责 ____________________________14. 不同种类的 ____________________________ 15. 打印更少的纸张 ____________________________16. 一个很棒的方法 ____________________________ 17. 买二手书 ____________________________18. 需要很多空间 ____________________________ 19. 导致破坏 ____________________________20. 成为一个素食者____________________________ 21. 没有人能解释为什么这些树有奇怪的形状。____________________________ 22. Cathy 志愿照顾阳光公园附近的树木。_____________________________________________________________________________ 23. 志愿者们能通过讨论和学习小组了解环境保护。_____________________________________________________________________________ 24. 即使一棵小树也能给环境带来影响。_____________________________________________________________________________ 25. 他们已经种了很多树以便于鸟和动物们能住在森林里。_____________________________________________________________________________ 26. 我们可以通过在纸张的两面写字来节约木材。_____________________________________________________________________________ 27. 在线支付是节约纸张的一个很棒的方法。_____________________________________________________________________________ 28. 帮助树木的一个基本方法是多种树少砍树。_____________________________________________________________________________ IV. Think about the “Big Question” again and try to answer it by using what you have learned in this unit. Q: What do trees mean to us? 2 学科网（北京）股份有限公司 $