Unit 6 Lesson 1 In One Cubic Foot(课件)-2023-2024学年剑桥少儿英语二级下册

BACKYARD DISCOVERIES NATIONAL GEOGRAPHIC READING EXPLORER1 1 A young explorer photographs a fern plant in a Canadian forest. a fern plant 蕨类植物 Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES A fern is a plant that has long stems with feathery leaves and no flowers. There are many types of fern. 2 WARM UP Discuss these questions with a partner. 1. What are some natural places near your home? How much time do you spend there? I live near the ocean, and I spend a lot of time there swimming in the summer and going for walks in the winter. 3 WARM UP Discuss these questions with a partner. 2. What types of animals and plants can you find at these places? There are seagulls and crabs on the beach, and also seaweed and beach roses that grow nearby. 4 Reading Explorer 01 Before Reading While Reading Reading Skill 02 03 contents 04 After Reading 5 BEFORE YOU READ Around us there are millions of tiny plants, insects, fish, and other animals, but we often don’t see them. Most of these organisms live in the soil, or (like the ones pictured) in the water. Some are only a millimeter in size. 6 BEFORE YOU READ  million /ˈmɪljən/ n. 百万 one in a million 百里挑一 thanks a million 非常感谢 make a million 发大财 millions of 大量的 The Million Pound Note I still have a million things to do. 7 BEFORE YOU READ  tiny /ˈtaɪni/ adj. 极小的， 微小的 = adj. 微小的；很少的 micro few little minute Though she was tiny , she had a very loud voice. 8 BEFORE YOU READ  organism /ˈɔːɡənɪzəm/ n. 生物;有机体;微生物;有机组织 词根：organ adj. organized 有组织的； n. organisation 组织； v. organize 组织起来； Most of these organisms live in the soil. 9 BEFORE YOU READ  soil /sɔɪl/ n. 泥土，土壤； soil 指土壤： • Plant the seedlings in damp soil. 把幼苗种在湿润的土壤里。 联想记忆: soil 土壤 oil 油 boil 煮沸 10 mud 指泥、淤泥、泥浆： • The car wheels got stuck in the mud. 汽车轮子陷到泥里去了。 clay 指黏土、陶土： • The tiles are made of clay. 这些砖是用陶土制成的。 land 尤指某种类型的地带、土地： • an area of rich, fertile land 土地富饶肥沃的地区 earth 指土、泥、泥土 • She put some earth into the pot. 她在花盆里放了一些泥土。 dirt 指泥土，尤指松土、散土： • Pack the dirt firmly around the plants. 将植物周围的土培实。 ground 指土地： • The car got stuck in the muddy ground. 汽车陷到泥地里了。 BEFORE YOU READ 11 BEFORE YOU READ millimeter /ˈmɪlimiːtə(r)/ n. 毫米 centimeter /ˈsentɪmiːtə(r)/ n. 厘米 decimetre /ˈdesɪmiːtə(r)/ n. 分米 meter /ˈmiːtə(r)/ n. 米 kilometer /kɪˈlɒmɪtə(r)/ n. 千米 micrometer /maɪˈkrɒmɪtə(r)/ n. 微米 Some are only a millimeter in size. 12 BEFORE YOU READ 1.___________ : living things 2.________ : very small in size 3.________ : the upper layer of the ground in which plants grow A. Read the caption below. Match each word in bold with its definition (1–3). organisms tiny soil 13 BEFORE YOU READ They break down dead plants and animals into nutrients(养分), so that the living animals and plants in the area can thrive(茁壮成长). B. Read paragraph A. Why do you think small organisms are important? Discuss with a partner. Then read the rest of the passage to check your ideas. 14 Reading Explorer 01 Before Reading While Reading Reading Skill 02 03 contents 04 After Reading 15 BEFORE YOU READ IN ONE CUBIC FOOT 16 BEFORE YOU READ cubic /ˈkjuːbɪk/ adj. 立方的；立方体的 foot /fʊt/ n. 脚，足；英尺； 17 A In any environment—forest, mountain, water—you always see the big animals first: birds, mammals, fish. But under your feet, both on land and in the water, there are many smaller organisms: insects, tiny plants, miniature sea creatures. Words environment /ɪnˈvaɪrənmənt/ n. 自然环境，生态环境； mammal /ˈmæm(ə)l/ n 哺乳动物 miniature /ˈmɪnɪtʃə(r)/ n. adj. 微型的，小型的 Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES 18 BEFORE YOU READ mammal /ˈmæm(ə)l/ n 哺乳动物 Mammals are animals such as humans, dogs, lions, and whales. In general, female mammals give birth to babies rather than laying eggs, and feed their young with milk. A whale is a kind of mammal. 19 A They may seem unimportant, but, in fact, these sea creatures and ground dwellers1 are “the heart of life on Earth,” according to naturalist E. O. Wilson. Without them, our world would be a very different place. Words unimportant /ˌʌnɪmˈpɔːt(ə)nt/ adj. 不重要的 dweller /ˈdwelə(r)/ n. __________ naturalist /ˈnætʃ(ə)rəlɪst/n.自然学者Without /wɪˈðaʊt/ prep. 没有 居民 Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES 1 A dweller is a person or thing that lives in a certain place. E. O. Wilson 20 Ask and Answer Why does the author include the quote from E. O. Wilson in Paragraph A? a. To persuade readers to protect the environment b. To show the importance of small organisms c. To tell readers how to look for important organisms 21 Ask and Answer A forest dweller ______. a. loves the forest b. lives under the forest c. lives in the forest 22 The Cycle of Life B Most organisms on Earth live on the ground or just below it. Here, they are part of an important cycle. When plants and animals die, they fall to the ground. Words cycle /ˈsaɪk(ə)l/ n. a series of events that happen in the same order again and again Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES life cycle 寿命周期 23 The Cycle of Life B Later, tiny insects and other organisms break down the dead plant and animal material. This process eventually returns nutrients2 to the soil and gives living plants energy. Words break down 分解 dead /ded/ adj. no longer alive material /məˈtɪəriəl/ n.a solid substance process /ˈprəʊses/ n. a series of events eventually /ɪˈventʃuəli/ adv.最终 nutrient /ˈnjuːtriənt/ n._________ energy /ˈenədʒi/ n. the ability to put effort and enthusiasm into an activity or work. Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES 2. Nutrients are substances (like vitamins) that help plants and animals grow. 养分 24 Ask and Answer The phrase These plants in paragraph B, line 5 refers to ______. a. plants that have recently died b. plants that return nutrients to the soil c. living plants 25 The Cycle of Life B These plants can then help to maintain a healthy environment for humans and other animals. Words maintain /meɪnˈteɪn/ v. to not change something much healthy /ˈhelθi/ adj. having good health and not likely to become ill n. health 健康 healthcare 医疗保健 Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES Healthy Eating 健康饮食 healthy diet 均衡饮食 keep healthy 保持健康 stay healthy 保持健康 26 Discoveries in a Cube C Despite their importance, scientists know very little about most ground organisms. To learn more, photographer David Liittschwager went to different places around the world, including a forest and a coral reef. Words Cube /kjuːb/ n. 立方体 scientist /ˈsaɪəntɪst/n . 科学家 coral reef 珊瑚礁 Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES 27 BEFORE YOU READ coral reef 珊瑚礁 /ˈkɒrəl riːf/ 28 Discoveries in a Cube C In each place, he put a green 30-centimeter cube on the ground or in the water. Then he and his team counted and photographed the organisms that lived in or moved through the cube. Words team /tiːm/ n. a group of people count /kaʊnt/ v. to calculate the total number of people, things Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES 29 Discoveries in a Cube C Often they discovered hundreds of organisms, some only a millimeter in size. “It was like finding little gems,”3 he says. Words discover /dɪˈskʌvə(r)/ v. to find something that you did not know existed gem /dʒem/ n. ___________ Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES 3. gems are beautiful stones used in jewelry 宝石 30 Ask and Answer The main purpose of paragraph C Is to describe the ______. a. organisms that lived or moved in the cube b. work of David Liittschwager c. cube the team took around the world 31 Coral Reef Moorea, French Polynesia Here, Liittschwager photographed over 600 creatures in the cube. The team identified as many as possible, but it was difficult. Many of the animals they found were new species. Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES 莫雷阿岛,法属波利尼西亚 32 Ask and Answer When working in French Polynesia, Liittschwager’s team discovered ______. a. organisms that had never been seen before b. animals that live nowhere else in the world c. new species of plants living in the coral reef 33 BEFORE YOU READ identify /aɪˈdentɪfaɪ/ v. 认出，识别； as many as possible 尽可能多 species /ˈspiːʃiːz/ n. （动植物的）种，物种； as .... as possible as + adj. / adv.+ as possibe, 意思是尽可能……的 as soon as possible 尽快 as often as possible 尽量经常， as big as possible 尽可能大， as carefully as possible 尽可能仔细地 34 Tropical Cloud Forest Monteverde, Costa Rica There are many different types of plants in this region. Almost 125 species that live here are found nowhere else on Earth. Reading Explorer 1 -- Unit 6: BACKYARD DISCOVERIES region /ˈriːdʒən/ n. 地区，区域 nowhere /ˈnəʊweə(r)/ adv. 无处，哪里都不 蒙泰韦尔德,哥斯达黎加 35 READING COMPREHENSION 1. What could be another title for this reading? a. Tiny Organisms Are Everywhere b. Saving Small Animals c. The Life of a Photographer 2. In paragraph A, what does the word miniature mean? a. very beautiful b. very small c. very important A. Choose the best answer for each question. 36 READING COMPREHENSION 3. Where do most organisms on Earth live? a. in the sea b. on land or in the soil c. in the air 4. Liittschwager and his team used the cube to______ . a. collect different species for further study b. test the quality of the soil and water c. count and photograph different organisms A. Choose the best answer for each question. 37 READING COMPREHENSION 5. In paragraph C, why does Liittschwager call the organisms “little gems”? a. He thinks they are valuable and precious. b. They are very difficult for him to see. c. The organisms look like small stones. A. Choose the best answer for each question. 38 David Liittschwager found this tiny baby octopus (1.1 cm across) in his coral reef sample. READING COMPREHENSION 39 1. What can plants help maintain for humans and animals? _____________________________________________________ 2.Why was it difficult for Liittschwager’s team to identify the creatures at the coral reef? _____________________________________________________ 3. Where did Liittschwager find over a hundred species that can’t be found anywhere else? _____________________________________________________ READING COMPREHENSION Write short answers for these questions. Use information from the reading passage and the photo captions. a healthy environment many were new species Monteverde, Costa Rica 40 Reading Explorer 01 Before Reading While Reading Reading Skill 02 03 contents 04 After Reading 41 When you sequence events, you put them in the order in which they occur. Sequencing is important for gaining a deeper understanding of the relationship between events in a process. Some common words that can signal sequence are first, after, then, later, next, once, when, as soon as, and finally. A good way to show sequence is to list the events in a chain diagram. READING SKILL A. Read paragraph B in Reading A again. Underline signal words that indicate a sequence. Understanding Sequence (1)—Processes Line 2: When; Line 3: Later; Line 4: eventually; Line 5: then 42 Liittschwager photographed hundreds of species living in this 3,200-year-old giant sequoia tree. READING COMPREHENSION 43 READING SKILL B. Put the life cycle events (a–f) in the correct order in the diagram below. a. Plants and animals die. b. Living plants get energy from the nutrients in the soil. c. Plants help to support life for animals and humans. d. Dead material is broken down. e. Dead plants and animals fall to the ground. f. Nutrients are returned to the soil. e d f b c 44 READING SKILL e d f b c 45 CRITICAL THINKING Speculating Imagine you are a member of Liittschwager’s team. In which of the environments below would you place a cube? Why? Check (✓) three options and discuss with a partner. 46 Reading Explorer 01 Before Reading While Reading Reading Skill 02 03 contents 04 After Reading 47 eventually discover species break down mammal soil process maintain cycle material scientist tiny naturalist organism unimportant VOCABULARY PRACTICE dweller miniature environment region The fairyfly is one of the world’s smallest animals. READING COMPREHENSION 49 VOCABULARY PRACTICE A. Circle the correct words to complete the information below. One of the smallest animals in the world is a type of insect called a fairyfly. The male fairyfly of one 1species / team is only 0.17 millimeters in length—about the size of the period at the end of this sentence. Not much is known about the life 2cycle / species of fairyflies. But we do know they don’t live long—only between 2 and 11 days. Fairyflies live mostly in rain forests. The 3processes / regions with the greatest number of species are in Australia, New Zealand, and South America. Recently, 4materials / scientists in Costa Rica 5discovered / maintained a new species of fairyfly called Tinkerbella nana. 50 VOCABULARY PRACTICE B. Complete each sentence with the correct answer (a or b). 1. A process refers to a ________. a. series of events b. single event 2. If you maintain a healthy weight, it ________. a. changes often b. doesn’t change much 3. A team refers to ________ . a. just one person b. a group of people 51 VOCABULARY PRACTICE B. Complete each sentence with the correct answer (a or b). 4. Plant material would include ________ . a. rocks and stones b. grass and leaves 5. If you break something down, you ________. a. separate it into smaller pieces b. give it away 52 VOCABULARY PRACTICE 1. If you break ________your boyfriend or girlfriend, your relationship with that person ends. 2. If a prisoner breaks ________prison, they escape from it. 3. If someone breaks________ a building, they enter it by force. C.Break down is one of many phrasal verbs formed using the verb break. Complete the definitions below using the prepositions in the box. up with out of into into out of up with 53 Thanks for Watching 54 Lavf58.20.100 Lavf58.20.100 $$