鲁教版（五四学制）（2024）九年级全册Unit 8 We’re trying to save the earth! Section A教学课件ppt

这是一份鲁教版（五四学制）（2024）九年级全册Unit 8 We’re trying to save the earth! Section A教学课件ppt，共39页。
Unit 8 We’re trying to save the earth ! Section A (Grammar Focus-4c)目录CONTENTS 1. Lead in2. Presentation3. Production4. Summary5. Exercise6. HomeworkLanguage goals语言能力：在语境中理解、识记并运用本课时词汇：take part in,afford,turn off,reusable,pay for,take action,transportation 等。 思维品质：能运用目标语言谈论污染问题，能在实际情景对话中认识解决空气污染和垃圾污染的方法。文化意识：能够用与污染相关的词汇，对环境污染和环境保护进行简单描述。学习能力：能正确区分和使用以下语法结构：现在进行时、used to、被动语态、现在完成时、情态动词。第一部分PART 01Lead inLead inIt is suffering from pollution.What’s happening to the earth ?Lead inThe river used to be clean. However, it is badly polluted. Even the bottom of the river was full of rubbish.Lead inWhat caused the water pollution ？People are throwing rubbish to the river.Factories are putting waste into the river.What should we do to save the earth ?Lead inThe government has taken actions.Some laws are developed to stop the pollution.Everyone should take part in saving the earth.第二部分PART 02PresentationThe river used to be clean. PresentationHowever, 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 .Group oneThe 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 sthdidn’t use to do sthDid ...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 sthUsed... 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。Practice1.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 goam used to playingare used to cutDid he use to spendGroup twoSome 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 heldwas heardwill be builtbe taken一般现在时一般过去时一般将来时情态动词PracticeGroup threeEveryone should take part in saving the earth.He can’t play the guitar.They may have finished the task last month.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。Practice1. —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’t2. —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’t3. —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.will4. —You ________ take photos here! Look at the sign. It says “No photos”. —Sorry, I won’t. A. mustB. needC. mustn’t D. needn’tGroup fourPeople are throwing rubbish to the river.Factories are putting waste into the river.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 !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。makingstoppingbeginningwatchingbuyingsavingputtinglisteningdrivingseeing2.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。Practice1. Look! Some old people ________ in the park. A. singsB. singC. are singing2. —Don’t make noise! The children ________online. —Sorry, I won’t. A. studies B. are studying C. studied D. were studying3. —Peter, what are you doing? —Oh, I ________ a report about national heroes. A. will write B. am writing C. wrote D. have writtenGroup fiveThe 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.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 _______cleanedlivedstudiedplannedputbeguntaughtgotdrivenseen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。Group five不规则动词的过去分词(详情见书后附录） Practice1.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.has takenhaven’t readhasn’t comehave been marriedhas livedfor+一段时间since+过去时间点/从句（一般过去时）Practice6.I _______ to the West Lake four times, but I will go there again this summer.A．have gone B．have been C．had gone7.—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 tohave/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 在某地多长时间第三部分PART 03ProductionFill in the blanks with the correct forms of the verbs in brackets.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? Havetaken helpedconsideredhadhadtooktake part in sth/doing sth 参加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! thinkcametryingwaitafford to do sth 负担得起take action 采取行动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. Fill in the blanks with the appropriate modal verbs from the box. can would could have to should must may/ might may/might should/have to/must can/could/should can/could/shouldbegin with 开始于turn off 关闭reusable 可重复使用的 can would could have to should must may/ mightI 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! have to can/could/should can/could can/could would/can/couldpay for 付费；付出代价add up 合计；加起来Make a list of things that people can do to help the environment and discuss your list with your partner.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第四部分PART 04SummaryThe river used to be clean. SummaryHowever, 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第五部分PART 05Exercise用所给词的适当形式填空1. The old man used _____ (be) a teacher. 2. We should _____ (clean) the room every day. 3. Look! Tom _____________ (sleep) in his room. 4. Lots of trees _______________(plant) on the hill every year. 5. He _________ (live) here for 20 years. to be clean is sleepingare planted has livedExercise1. He promised to pick me up . However, he_____ yet. A. didn’t arrive B. doesn’t arrive C. isn’t arriving D. hasn’t arrived2. Ba Jin, one of the greatest writers in China, ___ as “People’s Writer”.  A. is regarded   B. has regarded    C. is regarding   D. regardsExercise3. —Where is Tom? —He ______ in his room. A. is reading B. reads C. read D. was reading 4. Her son _______ coffee, but now he ________ milk. A. used to drink ; is used to drinking B. used to drinking ; drinks C. is used to drinking ; used to drink D. is used to drink ; is drinkingExercise第六部分PART 06HomeworkWrite 5 sentences with the language points.Make up 5 exercises with the skills.Search for information about environmental protection and endangered animals.HomeworkThank you !