Unit 13 We're trying to save the earth!（无听力音频）-【优课堂给力A+】2023-2024学年九年级英语全一册课时讲解（人教版）

课时讲解 UnitY O U K E T A N G G E I L I A+ Unit 13 We􀆳re trying to save the earth! 13 ·· 325 优课堂 A+ 英语 九年级全一册(RJ) Y O U K E T A N G G E I L I A+ ★重点精析★ 1. There are other advantages of bike riding. 骑自行车还有其他的优点。 advantage 意思是“优点；有利条件”，其反 义词为disadvantage；常见的用法如下： (1) take advantage of，意思是“利用(机会、 时机、某人的处境、弱点等)；欺骗(某人)；捉弄 (某人)；占(某人的)便宜”。 He has always been taking advantage of me. 他总是捉弄(利用)我。 They took advantage of the fine weather to play tennis. 他们趁着好天气打网球。 (2) to sb 􀆳 s advantage，意思是“对某人有 利”。 It will be to your advantage to study abroad. 出国留学对你是有利的。 (3) have the (an) advantage over/of，意思是 “优于；比……占有优势”。 You have the advantage over / of me in experience. 在经验方面你比我强。 Most of the people think they should the hotel􀆳s facilities when they are in it. A. get out of B. run out of C. take advantage of 练 习 2. It 􀆳 s good for health and it doesn 􀆳 t cost anything!它(骑车)对身体有益且不需要任何花 费。 cost 作动词，意思是“花费”；指花费金钱， 主语通常是物。cost的过去式和过去分词均为 cost。 The new shirt cost Mr. Wang ¥200. 这件新 衬衫花了王先生200元。 【拓展】cost, spend, take, pay 都可以表示 “花费”，但它们用法各有不同： cost spend take pay sth.+ cost+ (sb.) +money 1. spend+ time/money on sth. 2. spend +time/money (in) doing sth. It takes (sb.) time +to do sth. pay+ (sb.)+money for sth. — Are you sure to take the evening course? — Yes. Though it a lot, it􀆳s worth it. A. takes B. spends C. costs 练 习 3. We can 􀆳 t afford to wait any longer to take action! 我们要行动起来，不能再等了！ afford 意思“承担得起(后果)；买得起”；其 后常接名词、代词或动词不定式作宾语；afford 后还可接双宾语、复合宾语。 This kind of computer is too expensive and I can􀆳t afford it.这种电脑太贵了，我买不起。 We can hardly afford to drop behind our competitors. 我们可担当不起落后于竞争对手 的后果。 I 􀆳m afraid we cannot to take a taxi. Let 􀆳s go by underground instead. A. refuse B. afford C. forget 练 习 4. Do you often throw away things you don 􀆳 t need anymore? 你经常把不用的东西扔掉吗？ throw away的常见含义如下： (1) 表示“扔掉；丢弃”。 I never throw anything away. 我从来不扔任 何东西。 (2) 表示“浪费 (机会、优势或好处等)”。 Don􀆳t throw away this opportunity.不要错过 这个机会。 (3) 表示“浪费(时间、金钱等)；乱花(钱等) ”。 It will be time and money thrown away. 这将 浪费时间和金钱。 ·· 326 课时讲解 UnitY O U K E T A N G G E I L I A+ 13 People too much rubbish into the river every day so the river is dirty now. A. put away B. take away C. throw away 练 习 5. The top of the house is an old boat turned upside down.房子的屋顶是一艘翻转的旧船。 (1) upside down 意思是“颠倒 ; 倒转 ; 翻 转”。 Tony had an upside down map of Britain on his wall. Tony的墙上倒挂了一张英国地图。 (2) 此处过去分词短语 turned upside down 表示“被翻转过来的；被颠倒过来的”，用作后置 定语，修饰名词 boat。英语中短语和从句用作 定语时，一般置于名词之后，作后置定语。 The boy called Jack gave me a book written by Mark Twain. 那个叫 Jack 的男孩给了我一本 Mark Twain写的书。 Prices of things through the Internet can be lower than store prices. A. buying B. bought C. to buy 练 习 6. Rethink, reuse, recycle! 重新思考，再利用， 回收！ re-是最常用的前缀之一。它可以加在名 词或动词前面，构成新的名词或动词。re-主要 有以下三方面的意义： (1) 表示“回”或“向后”的意思。 return回来；recall回忆；retract缩回 (2) 表示“再；重新；重复”的意思。 restart重新开始；reconsider重新考虑 (3) 表示“相反；反对”的意思。 rebel谋反；reverse颠倒；resist反抗 【拓展】(1) un-前缀，常加在形容词、副词、 分词、动词和名词之前，表示否定意义或“相反 的动作”。 uncomfortable 不舒服的；unusual 不平常 的；unkind不仁慈的；unbind解开，释放；uncover 揭开盖子 (2) - ive 是形容词后缀，一般表示“…… 的”。 active活跃的；positive乐观的；creative有创 造性的 (3)后缀 - tion/- sion 附在动词后面构成名 词。 action行为；instruction指示；decision决定； division分开 ★语法小结★ 本单元对初中阶段已经学习过的语法知 识：现在进行时态、现在完成时态、被动语态、情 态动词及used to结构进行复习。 1. 用所给单词的适当形式填空。 (1) Mary (find) lying in a pool of blood. (2) In most schools, students (not allow) to eat in class. (3) The radio can (fix) in two hours. (4) Don 􀆳 t worry. Her work already (finish). (5) Hurry up! The film (begin) for five minutes. 2. 选择填空。 (1) We pay to get into the concert. It􀆳s free. A. can􀆳t B. mustn􀆳t C. don􀆳t have to (2) — Jill, can I use your e-dictionary? — Sure. But you return it after class. A. must B. can C. may (3) Every day, too much water in our school. We should save it. A. is wasted B. wastes C. wasted (4) The dictionary may for three weeks. A. keep B. be kept C. borrow (5) I can 􀆳 t understand what the book is about because it in English. A. writes B. will write C. is written 练 习 ·· 327 优课堂 A+ 英语 九年级全一册(RJ) Y O U K E T A N G G E I L I A+ 一、听句子，根据所听到的内容选择正确答案。每小题念两遍。 ( ) 1. A. Yes, I will. B. No, I am not. C. Yes, she is. ( ) 2. A. From the UK. B. To the moon. C. In South China. ( ) 3. A. I had a paper bag. B. The river was polluted. C. I plan to walk to school. ( ) 4. A. By taking a bus. B. By throwing more litter. C. By moving to the moon. ( ) 5. A. I agree. B. I don􀆳t know. C. I used to. 二、听对话，根据对话内容及问题选择正确答案。每小题念两遍。 ( ) 6. A. Air pollution. B. Noise pollution. C. Water pollution. ( ) 7. A. A fisherman. B. A worker. C. A farmer. ( ) 8. A. By bike. B. By subway. C. On foot. ( ) 9. A. Once a week. B. Once a month. C. Twice a week. ( ) 10. A. Two. B. Three. C. Four. ( ) 11. A. On a bus. B. In a car. C. In the office. ( ) 12. A. About 0.5 hour. B. About 1.5 hours. C. About 2 hours. ( ) 13. A. Himself. B. His mother. C. His grandmother. ( ) 14. A. To share cars. B. To drive private cars. C. To use public transportation. ( ) 15. A. How dirty the river is. B. How the river is polluted. C. How many factories are along the river. 三、听短文，根据短文内容选择正确答案。短文念两遍。 ( ) 16. What color was the planet when the boy found the flower? A. Green. B. Blue. C. Grey. ( ) 17. Where did the boy find the flower? A. At his school. B. By the lake. C. Around his home. ( ) 18. Why didn􀆳t the boy grow the flower on the planet? A. Because the flower was almost dying. B. Because the planet was badly polluted. C. Because there was nobody to take care of it. ( ) 19. How was the flower on the moon? A. It became sick. B. It died. C. It grew well. ( ) 20. What does the story tell us? A. Flowers make our planet beautiful. B. It􀆳s important to protect our planet. C. We should love plants and animals. ·· 328 课时讲解 UnitY O U K E T A N G G E I L I A+ 13 Section A 一、根据首字母及句意写出完整单词。 1. The meal c all my money — 20 dollars. 2. Stop smoking! It􀆳s h to your health. 3. The bike is not expensive. You can a it. 4. There are two f catching fish in the river. 5. The man broke the l and was put into prison (监狱). 6. All these cloth bags are r . So please don􀆳t throw them away. 7. You must stop l everywhere. We should keep the school tidy. 8. People in northern China burn c for heating, which is harmful to the air. 9. Most people think testing medicine on animals is c , so it should be prevented. 10. He explained the causes of haze (雾霾) by showing his s studies. 11. The blue blouse looks so u . I want the red one. It􀆳s much more beautiful. 12. The river is so clean that you can even see fish swimming at the b of it. 13. Her ability to speak three languages gave her an a to compete for the job. 14. P bags do harm to the environ- ment, so please take cloth bags when you go shopping. 15. The development of Chinese film i provides many chances for talented actors. 二、从方框中选出适当的短语，用其正确的形式 填空。 cut off be full of turn into take part in be harmful to 1. The icy rain seemed like snow. 2. — Are you going to any of the events? — Yes. Maybe long jump and high jump. 3. Your life love and joy if you are joyful and happy. 4. Playing computer games too much students. 5. The power , so I had to stop watching TV and go to bed. 三、用所给单词的适当形式填空。 1. Here is a large thick . Let 􀆳s cut down some trees to build a house. (wood) 2. Only a few (fisherman) lived in the small village 30 years ago. 3. Drinking is to your health. And smoking does to you, too. (harm) 4. The three come from the same university. They did some research and made some important discoveries. (science) 5. These and attend the concert to ask people to take to protect the environment. (act) 6. — Hurry up! We (wait) for you at the gate. — I􀆳m sorry. I (come). 7. I don􀆳t like this dress. It is the (ugly) of the three. 8. Jim (finish) doing his homework already. He is free now. 9. Jack used to (be) late for school, but now he is used to (get) up early to arrive at school on time. 10. The famous writer (write) one new book in the past two years. ·· 329 优课堂 A+ 英语 九年级全一册(RJ) Y O U K E T A N G G E I L I A+ 四、根据汉语意思完成句子，每空一词。 1. 我不再是个学生了。 I􀆳m a student. 2. 在一些商店里我们不得不付钱买塑料袋。 We plastic bags in some stores. 3. 他尽力大声叫喊, 以便别人能听见。 He shouted his voice in order that he might be heard. 4. 新来的老师总是鼓励 Tom。这对他影响很 大。 The new teacher always encourages Tom. This to him. 5. 这个可怜的人不仅受了伤，而且还被送进了 监狱。 the poor man , he was sent to prison. Section B 一、根据首字母及句意写出完整单词。 1. Don􀆳t throw the bottles away because they can be r . 2. Hurry up, Jack! Miss Smith is waiting for you at the g of our school. 3. I told my mother that I was thirsty and she gave me two b of orange juice. 4. If you want to join the students􀆳 union, you can ask James for help. He is the p of it. 5. Some of the toys are made of m , such as steel and iron, while others are made of wood. 6. He is a boy with great c . He has invented several useful inventions in the past two years. 7. For some artists, dreams are a source (来源) of i . 8. He likes collecting books, so it isn 􀆳t surprising to see the complete w of Shake- speare in his room. 二、从方框中选出适当的短语，用其正确的形式 填空。 throw ... away bring back pull down put ... to good use build ... out of 1. The old photo always good memories of school for me. 2. The boat waste plastic. It is a good example of reusing waste. 3. Lots of houses here soon because the government plans to build a city square. 4. Usually, my time . I make good plans and seldom waste time. 5. You should recycle these bottles instead of . 三、用所给单词的适当形式填空。 1. He has a mind and he is famous for his . (creative) 2. These methods teach us how old things to make new things. (recycle) 3. Lisa is an (inspire) to us. She made a house from waste. 4. Some of the rivers in the last few years. Water became a serious problem. (pollute) 5. The writer has many great , and most of them are about the hard-working in factories because he once in a factory. (work) 6. A year (pass) since I met you last time. 7. — What they (do)? — Look! They are over there, (help) an old man cross the street. 8. — He􀆳s never stolen anything before, has he? — Yes. It 􀆳 s his second time (take) to the police station. 9. We (have) some meetings to discuss the plan of volunteering in the community since last week. 10. — The classroom is very clean. — Sure. It (clean) after school every day. ·· 330 1.noise pollution;2.air pollution; 1.loud music;2.rubbish;3.littering;4.smoking; 3.water pollution;4.land pollution 5.pouring waste water into the river GEILI A Unit 13 Pollution Problems Protecting the environment 可回收 有客 箕他 We're trying to save Solutions Talking about the environment close down the factories;help to clean up the river; 1.We are trying to save the earth take the bus or subway;ride a bike;bring a bag to go 2.The river used to be so clean. ⊙ shopping;throw rubbish into the bins;turn off the 3.It was considered the nicest river in town the earth! lights when you leave a room;use paper or reusable 4.The air is badly polluted. bags;recycle books and paper;turn off the shower 5.We should help save the sharks. while you are washing your hair;don't use paper napkins;rethink;reuse;recycle 的 优课堂争A英语九年级全一册(RJ) 重点精折 语法小结 ★重点精析★ cost sth.+cost+(sb.)+money 1.There are other advantages of bike riding. 1.spend+time/money on sth. spend 骑自行车还有其他的优点。 2.spend +time/money (in)doing sth. advantage意思是“优点；有利条件”，其反 take It takes (sb.)time +to do sth. 义词为disadvantage;常见的用法如下： pay pay+(sb.)+money for sth. (I)take advantage of,.意思是“利用（机会、 练习 时机、某人的处境、弱点等)：欺骗（某人）：捉弄 Are you sure to take the evening course? (某人)：占（某人的）便宜”。 Yes.Though it C a lot,it's worth it. He has always been taking advantage of me. A.takes B.spends C.costs 他总是捉弄（利用）我。 3.We can't afford to wait any longer to take They took advantage of the fine weather to action!我们要行动起来，不能再等了！ play tennis.他们趁着好天气打网球。 afford意思“承担得起（后果）：买得起”；其 (2)tosb's advantage,.意思是“对某人有 后常接名词、代词或动词不定式作宾语；afford 利”。 后还可接双宾语、复合宾语。 It will be to your advantage to study abroad. This kind of computer is too expensive and I 出国留学对你是有利的。 can't afford it.这种电脑太贵了，我买不起。 (3)have the(an)advantage over/of,意思是 We can hardly afford to drop behind our “优于；比…占有优势”。 competitors.我们可担当不起落后于竞争对手 You have the advantage over of me in 的后果。 experience.在经验方面你比我强。 练习 练习」 I'm afraid we cannot B to take a taxi.Let's Most of the people think they should c the go by underground instead. hotel's facilities when they are in it. A.refuse B.afford C.forget A.get out of B.run out of 4.Do you often throw away things you don't C.take advantage of need anymore??你经常把不用的东西扔掉吗？ 2.It's good for health and it doesn't cost throw away的常见含义如下： anything!它（骑车）对身体有益且不需要任何花 ()表示“扔掉；丢弃”。 费。 I never throw anything away.我从来不扔任 cost作动词，意思是“花费”：指花费金钱， 何东西。 主语通常是物。cost的过去式和过去分词均为 (2)表示“浪费（机会、优势或好处等）”。 costo Don't throw away this opportunity,不要错过 The new shirt cost Mr.Wang￥2O0.这件新 这个机会。 衬衫花了王先生200元 (3)表示“浪费（时间、金钱等）：乱花（钱等）”。 【拓展】cost,spend,take,pay都可以表示 It will be time and money thrown away..这将 “花费”，但它们用法各有不同： 浪费时间和金钱。 ·326· 课时讲解Unit 13 练习 (2) -ive是形容词后缀， 一般表示“…. People C too much rubbish into the river 的”。 every day so the river is dirty now. active活跃的； positive乐观的； creative有创 A.put away B.takeaway C. throw away 造性的 5.The top of the house is an old boat turned (3) 后缀-tion/-sion附在动词后面构成名 upside down.房子的屋顶是一艘翻转的旧船。 词。 (1) upside down意思是“颠倒； 倒转； 翻 action行为； instruction指示； decision决定； 转”。 division分开 Tony had an upside down map of Britain on his wall.Tony的墙上倒挂了一张英国地图。 ★语法小结★ (2) 此处过去分词短语turned upside down 本单元对初中阶段已经学习过的语法知 表示“被翻转过来的；被颠倒过来的”，用作后置 识：现在进行时态，现在完成时态、被动语态、情 定语， 修饰名词boat。英语中短语和从句用作 态动词及used to结构进行复习。 定语时，一般置于名词之后，作后置定语。 The boy called Jack gave me a book written 练习 1.用所给单词的适当形式填空。 by Mark Twain.那个叫Jack的男孩给了我一本 (1) Mary was found (find) lying in a pool of Mark Twain写的书。 blood. 练习 (2) In most schools， students are not allowed Prices of things B through the Internet can (not allow) to eat in class. be lower than store prices. (3) The radio can be fixed (fix) in two hours. A.buying B.bought C.to buy (4) Don't worry. Her work has already been 6.Rethink， reuse， recycle!重新思考， 再利用， finished (finish) . 回收! (5) Hurry up!The film has been on (begin) for re-是最常用的前缀之一。它可以加在名 five minutes. 词或动词前面，构成新的名词或动词。 主要 2.选择填空。 有以下三方面的意义： (1) We C pay to get into the concert. It's free. (1)表示“回”或“向后”的意思。 A.can't B.must nt C.don't have to return回来； recall回忆； retract缩回 (2) 一Jill， can I use your e-dictionary? (2)表示“再；重新；重复”的意思。 -Sure. But you A return it after class. restart重新开始； reconsider重新考虑 A.must B.can C.may (3)表示“相反；反对”的意思。 (3) Every day， too much water A in our rebel谋反； reverse颠倒； resist反抗 school.We should save it. 【拓展】(1)un-前缀，常加在形容词、副词、 A.is wasted B.wastes C. wasted 分词、动词和名词之前，表示否定意义或“相反 (4) The dictionary may B for three weeks. 的动作”。 A.keep B.be kept C.borrow uncomfortable不舒服的； unusual不平常 (5) I can't understand what the book is about 的； unkind不仁慈的； unbind解开， 释放； uncover because it C in English. 揭开盖子 A.writes B.will write C.is written ·327·