Unit 13 Section A Grammar Focus-4c课件2025-2026学年人教版(2012)英语九年级全册

Section A (GF-4c) Made by Qianmo-studio We’re trying to save the earth ! Unit 13 Made by Qianmo-studio Qianmo-studio 1.hear of　听说 2.cut off　割掉;砍掉 3.cut down　减少 4.be harmful to对……有害 5.be good for…对……有益 6.at the top of　在……顶部或顶端 7. so far　 迄今为止 8.take part in 参加 9.pay for 付费；付出代价 10.take action 采取行动 Dictation Qianmo-studio To review the use of The Present Continuous Tense, passive voice, Present Perfect and Modal Verbs Key words & phrases: take part in ,afford, turn off, reusable, pay for, take action, transportation Key sentences: 1.Have you ever taken part in an environmental project? 2. We should help save the sharks. Learning goals Qianmo-studio The river used to be clean. However, it is badly polluted. People are throwing rubbish to the river. Factories are putting waste into the river. The government has taken actions. Some laws are developed to stop the pollution. Everyone should take part in saving the earth. used to do sth 被动语态 现在进行时 现在完成时 情态动词 Work in groups and talk about one point . Presentation Qianmo-studio Group one The river used to be clean. Did the river use to be clean ? The river didn’t use to be clean. Yes,it did./ No, it didn’t. 1.结构 used to do sth didn’t use to do sth Did ...use to do sth ? Yes,...did./No,...didn’t. used to do sth 过去常常做某事，现在没做了。 use not to do sth Used... to do sth ? be used to doing sth 习惯于做某事。 be used to do sth 被用于做某事。 Presentation Qianmo-studio 1.You used _________ (go) to school by bike，didn't you? 2. 我习惯于晚饭后打篮球。 I ____ ____ ____ _____basketball after dinner. 3.这种小刀是用来切东西的。 This kind of knife ____ ____ ____ ____ things. 4.He used to spend much time playing computer games.（改一般疑问句） ____ ____ ____ ____ ____ much time playing computer games? to go am used to playing are used to cut Did he use to spend Practice Qianmo-studio Group two Some laws are developed to stop the pollution. These trees were cut down by the workers last night. In the future , more and more work will be done by the robots. I think teenagers should be allowed to choose their own clothes. 被动语态 被动语态构成 be +过去分词 一般现在时被动语态 am/is/are +done 一般过去时被动语态 was/were+done 一般将来时被动语态 will be +done 有情态动词被动语态 情态动词 +done Presentation Qianmo-studio 用括号内所给动词的适当形式填空。 1. The Secondary School Entrance Exam _______ (hold) in June. 2. A strange noise __________ (hear) by his mother last night. 3. A wide road _____________ (build) between the two villages by those people next year. 4.Actions should______________(take) to protect the earth. is held was heard will be built be taken 一般现在时 一般过去时 一般将来时 情态动词 Practice Qianmo-studio Group three Everyone should take part in saving the earth. He can’t play the guitar. They may have finished the task last month. 情态动词 1.情态动词+动词原形 2.情态动词没有人称和数的变化。 3. 常用的情态动词有：can/could, may/might, must/have to,should/ought to, would,need 等。 Presentation Qianmo-studio 1. —Could you play the piano at the age of five? —No, I ______. I started at six. A. can’t B. shouldn’t C. needn’t D. couldn’t 2. —Must I return this book before Friday, Sir? —No, you ________, dear. You can keep it for two weeks. A. can’t B. shouldn’t C. mustn’t D. needn’t 3. —How long can I keep these books? —According to the library rules, you ________ return them within 7 days. A. must B. might C. could D.will 4. —You ________ take photos here! Look at the sign. It says “No photos”. —Sorry, I won’t. A. must B. need C. mustn’t D. needn’t D D A C Practice Qianmo-studio Group four People are throwing rubbish to the river. Factories are putting waste into the river. 现在进行时 现在进行时结构 be（am,is,are) 现在进行时含义 ①表示正在发生或者进行的动作。 ②表示当前一段时间内的活动或现阶段正在进行的动作。 标志性词 now, right now,Look! Listen ! Presentation Qianmo-studio Group four 写出下面动词的现在分词。 1.make _______ 2.stop _______ 3.begin _______ 4.watch _______ 5.buy ________ 6.save _______ 7.put ________ 8.listen _______ 9.drive _______ 10.see _______ 现在分词构成 1.一般情况下，直接+ing。 making stopping beginning watching buying saving putting listening driving seeing 2.以不发音的e结尾的，去e再加+ing。 3.以重读闭音节结尾，且末尾只有一个辅 音字母的，双写这个辅音字母再加+ing。 现在分词 Presentation Qianmo-studio 1. Look! Some old people ________ in the park. A. sings B. sing C. are singing 2. —Don’t make noise! The children ________online. —Sorry, I won’t. A. studies B. are studying C. studied D. were studying 3. —Peter, what are you doing? —Oh, I ________ a report about national heroes. A. will write B. am writing C. wrote D. have written C B B Practice Qianmo-studio Group five The government has taken actions. He has kept this book for two weeks. Her grandfather has been dead for ten years. My mother has gone to Hong Kong. Mary has never been to the USA. 现在完成时构成 现在完成时 have/has +过去分词 现在完成时含义 ①表示过去发生的事情对现在造成的影响。 ②表示从过去某一时间开始一直持续到现在，并还有可能继续下去的动作。 标志性词 already, yet, ever, never, just, before, once, so far, recently, for, since. Presentation Qianmo-studio Group five 写出下面动词的过去分词。 1.clean _______ 2.live _______3.study _______ 4.plan _______ 5.put ________6.begin _______ 7.teach________ 8.get _______ 9.drive _______ 10.see _______ cleaned lived studied planned put begun taught got driven seen 过去分词的规则变化 1.一般情况下，直接+ed。 2.以字母e结尾的，直接＋d。 4.以重读闭音节结尾，且末尾只有一个辅音字母的， 双写这个辅音字母再加+ed。 3.以辅音字母+y结尾的，将y改为i再加＋ed。 过去分词 Presentation Qianmo-studio Infinitive 动词原形 Past Tense 过去式 Past Participle 过去分词 cut cut cut let let let put put put read read read Infinitive 动词原形 Past Tense 过去式 Past Participle 过去分词 have had had make made made spend spent spent tell told told Infinitive 动词原形 Past Tense 过去式 Past Participle 过去分词 do did done be was/were been go went gone see saw seen 不规则变化: A-A-A型 (动词原形、过去式、过去分词都同形) A-B-B型 (动词过去式、过去分词同形) A-B-C型 (动词原形、过去式、过去分词都不同形) AAB型 beat beat beaten ABA型 become became become 不规则动词的过去分词(详情见书后附录） Presentation Qianmo-studio 1.In the past few years, great changes__________ (take) place in Lianyungang. 2.I ___________ (not read) the book Little Women yet, but I'll let you read it first. 3.He ____________(not come) yet. What do you think has happened to him? 4.They __________________ (marry) for fifty years. 5.Linda_____________(live) here since she was five years old. 6.I _______ to the West Lake four times, but I will go there again this summer. A．have gone B．have been C．had gone 7.—Where is Mr. Brown? —He ________ Australia. He ________ there last year. A．has been to; has been B．has been to; has gone C．has gone to; went 8.I _______Shijiazhuang for three years. A.have been to B.have been in C.have gone to has taken haven’t read hasn’t come have been married has lived for+一段时间 since+过去时间点/从句（一般过去时） B C B have/has been to 去过某地，已经回来了。 have/has gone to 去了某地，还未回来 have/has been in 在某地多长时间 Practice Qianmo-studio Joe：_____you ever________ (take) part in an environmental project? Ken: Yes, I have. I _______(help) with a Clean-Up Day last year. It was __________(consider) the biggest clean-up project this city_____ ever ______(have). Joe: How many people_______(take) part? Ken: I ________(think) more than 1,000 people _______ (come) to help out. Joe: That's fantastic! I guess everyone in this city is _______(try) to improve the environment. Ken: Yes, we can't afford to______ (wait) any longer to take action! 4a Fill in the blanks with the correct forms of the verbs in brackets. Have taken helped considered had had took think came trying wait Practice Qianmo-studio People ___________ think that big things ___________ be done to save the earth. Many forget that saving the earth begins with small things. For example, you _______________save electricity by turning off the lights when you leave a room. You _________________ also use reusable bags instead of plastic bags. I think it’s a great idea that you now _________ pay for plastic bags in some stores. And instead of driving to school or work, you _______________ride your bike or walk. If it’s far, you ________ take the bus. All these small things ___________ add up and become big things that _______________improve the environment. Let’s take action now! may/might must/have to can/should/could have to can/could would/can/could can/should/could can/should/could can/could can would could have to should must may/might Fill in the blanks with the appropriate modal verbs from the box. 4b Qianmo-studio Make a list of things that people can do to help the environment and discuss your list with your partner. 4c I think that everyone should use public transportation. I disagree. It’s difficult for parents with young children to use public transportation ... ________________________________________________________ use public transportation Practice Qianmo-studio The river used to be clean. However, it is badly polluted. People are throwing rubbish to the river. Factories are putting waste into the river. The government has taken actions. Some laws are developed to stop the pollution. Everyone should take part in saving the earth. used to do sth 被动语态 现在进行时 现在完成时 情态动词 Summary Qianmo-studio Ⅰ.单项填空 (　)5.Students begin to pay more attention to subjects of art education. —That’s true. They 　　　in senior high school entrance examination.  A.are tested B.were tested C.will be tested D.tested (　)6.—Have you tasted zongzi, a kind of traditional Chinese rice dumplings? —Sure. It’s said that a lot of zongzi 　　　at the food factory twenty days ago.  A.are made B.were made C.made D.are making (　)7.—How clean the roads are! —They 　　　by the hard-working cleaners every day.  A.are cleaned B.clean C.will clean D.are cleaning (　)8.(2021菏泽改编)—I wonder if these are Jim’s glasses. —They 　　　be his. He doesn’t wear glasses.  A.could B.must C.can’t D.needn’t (　)9.(2021盐城)The biggest challenge we all face is to prevent further environmental disasters. We 　　　take action before it is too late.  A.can B.must C.may D.might B C A C B Exercises Qianmo-studio We all need clean water every day. However, more than 700 million people around the world have 6. 　 　　　getting clean and safe water.  Treating wastewater is a good way 7.　 　　　 fresh water for us. And it also improves the environment 8.　 　　 keeping waste out of rivers and oceans. 80% of. But now we have got the technology to treat and recycle the wastewater. wastewater around the world is not treated at all, and it is running into oceans 9. 　 　　. Besides, desalination(海水淡化) can also be a 10.　　 　　 way. Although 75% of our 11.　　　　 is covered with water, only about 2% is fresh water coming from rivers, lakes, ice and snow. The rest, 98% of the water, is in seas and oceans. It is too salty to drink, 12.　　　 more than 19,000 factories have been built around the world to make water drinkable. Every day, they process more than 92 13. ______ tons of water. But the technology they use 14.　　　　 a lot of energy. Scientists hope that they can 15.　　　　 a new technology to work better with less money in the future. They want to produce 20 times more clean water to make sure 16. ______ can have enough clean water in the future.  by, everyone, provide, directly, planet, so, million, require, trouble, useful, create trouble to provide by directly useful planet so million requires create everyone Exercises Qianmo-studio Homework Memorize the summary Recite Grammar Focus. Finish the exercises on the students’ book. Preview 1a-1e on page 101. Post-listening Qianmo-studio $