九年級英語 Unit 13 Section A(4a-4c)

1、.Unit 13We are trying to save the earth! . 不同種類的污染不同種類的污染2. 河底河底3. 把垃圾扔到河里把垃圾扔到河里4. 在在中起作用中起作用different kinds of pollutionthe bottle of the riverthrow rubbish into the riverplay a part in I. Check if you know these phrases.5. 在中國南部在中國南部6. 對對有害有害7. 在在頂部頂部8. 海洋生態(tài)系統(tǒng)海洋生態(tài)系統(tǒng)in southern Chinabe harmful to

2、at the top ofthe oceans ecosystem.II. Translate the sentences.1. 甚至是河底都滿是垃圾。甚至是河底都滿是垃圾。2. 這個方法不僅殘酷還對環(huán)境有害。這個方法不僅殘酷還對環(huán)境有害。Even the bottom of the river was full of rubbish.This method is not only cruel, but also harmful to the environment.3. 鯊魚處于海洋食物鏈的頂部。鯊魚處于海洋食物鏈的頂部。4. 許多人相信魚翅對健康有好處。許多人相信魚翅對健康有好處。Shar

3、ks are at the top of the food chain in the oceans ecosystem.A lot of people believe that sharks fins are good for health.take part inaffordturn offreusablepay fortake actiontransportation參加參加v. 買的起；承擔(dān)的起買的起；承擔(dān)的起（后果）（后果）關(guān)掉關(guān)掉adj. 可重復(fù)使用的可重復(fù)使用的付費；付出代價付費；付出代價采取行動采取行動n. 運輸業(yè)；交通運輸運輸業(yè)；交通運輸Words Review.辨析：辨析：j

4、oin, join in 和和take part in to.Will you join us in the discussion? 你參加我們的討論嗎？你參加我們的討論嗎？ She joined the Young Pioneers. 她加入了少先隊。她加入了少先隊。 Why didnt you join in the talk last night? 昨晚你為什么沒參加座談？昨晚你為什么沒參加座談？Did you take part in the sports meet? 你參加運動會了嗎？你參加運動會了嗎？. afford是動詞，是動詞，意為意為“買得起買得起,擔(dān)負(fù)得起擔(dān)負(fù)得起”，通通常

5、與常與can, could, be able to連用連用,多多用于否定句中。用于否定句中。They couldnt afford $50 for a ticket. 他們拿不他們拿不出出50美元買一張票。美元買一張票。 afford后面常跟帶后面常跟帶to的動詞不定式。的動詞不定式。We cant afford to go abroad this summer. 今年今年夏天我們沒有足夠的錢出國。夏天我們沒有足夠的錢出國。例句：例句：Miss Taylor never wastes money on anything too expensive, even though she can _t

6、o. She has donated much of the money she saved to charities. A. affordB. allow C. remind D. payafford.Pay attention to the sentences.1. Were trying to save the earth.2. The river used to be so clean.3. The air is badly polluted.4. No scientific studies have shown that shark fins are good for health.

7、5. We should help save the sharks.Present progressiveused toPassive voicePresent perfectModal verbs.現(xiàn)在進(jìn)行時現(xiàn)在進(jìn)行時: : Present Progressive結(jié)構(gòu)結(jié)構(gòu): be (am/is/are) + v.-ing標(biāo)志詞：標(biāo)志詞：Look, Listen, now, right nowe.g. Look! The boy is crying.定義：表示說話時定義：表示說話時(瞬間瞬間)正在進(jìn)行正在進(jìn)行的動作的動作, 也表示目前或現(xiàn)階段也表示目前或現(xiàn)階段正在進(jìn)行的動作。正在進(jìn)行的動作。

8、.used to do sth. 表示過去常常做某事表示過去常常做某事, 而而現(xiàn)現(xiàn) 在往往不做了在往往不做了, 后接動詞原后接動詞原 形。形。be used to doing sth. 表示習(xí)慣于做某事表示習(xí)慣于做某事e.g. I used to get up at six oclock. Joe is used to drinking a cup of coffee every morning.used to do與與be used to doing.Translation.1. 她過去常常周末和朋友閑逛。她過去常常周末和朋友閑逛。 She used to hang out with fri

9、ends on weekends.2. 他習(xí)慣于每天晚上睡得很晚。他習(xí)慣于每天晚上睡得很晚。 He is used to staying up.被動語態(tài)：被動語態(tài)：Passive voice定義：定義：表示主語是動作的承受者，即行表示主語是動作的承受者，即行 為動作的對象的一種語態(tài)。為動作的對象的一種語態(tài)。結(jié)構(gòu)：結(jié)構(gòu)：be + 過去分詞過去分詞e.g. A new school was built last year. Our classroom is cleaned every day.Translate the sentences by using Passive voice.1. 剛才一

10、些老年人參觀了博物館。剛才一些老年人參觀了博物館。2. 工人們使用不同種類的機器工作。工人們使用不同種類的機器工作。The museum was visited by some old people just now. Different kinds of machines are used to work by the workers. .結(jié)構(gòu)結(jié)構(gòu): has/have + 過去分詞過去分詞標(biāo)志詞：標(biāo)志詞：already, yet, ever, never, since, fore.g. I havent finished my homework yet.定義：表示動作已經(jīng)完成定義：表示動作已

11、經(jīng)完成, 但對現(xiàn)在造成影但對現(xiàn)在造成影 響響; 或者表示從過去某一時間開始一或者表示從過去某一時間開始一 直延續(xù)到現(xiàn)在并還可能持續(xù)下去的直延續(xù)到現(xiàn)在并還可能持續(xù)下去的 動作。動作。 現(xiàn)在完成時現(xiàn)在完成時: Present Perfect.Complete the following sentences. I _ (be) in Beijing for two years.2. I _ never _ (hear) of that man before.3. Tom _ (work) there since two years ago.have beenhaveheard has worked.

12、4. The twins _ (wash) the clothes for an hour.5. He _ (play) basketball since three years ago.6. How long _ Sally _ (sing) yet?have washedhas playedhassung.1. 情態(tài)動詞本身有一定的詞義情態(tài)動詞本身有一定的詞義, 表示說話表示說話人的情緒、態(tài)度或語氣人的情緒、態(tài)度或語氣, 但不能單獨作但不能單獨作謂語謂語, 只能與其他動詞構(gòu)成謂語。只能與其他動詞構(gòu)成謂語。常見常見的有的有: can (could), may (might), must, n

13、eed, shall (should), will (would)等。等。情態(tài)動詞情態(tài)動詞.2. 情態(tài)動詞無人稱和數(shù)的變化情態(tài)動詞無人稱和數(shù)的變化, 后接動詞后接動詞原形。否定式是在情態(tài)動詞后面加原形。否定式是在情態(tài)動詞后面加not。個別情態(tài)動詞有過去式形式。個別情態(tài)動詞有過去式形式, 可用來可用來表達(dá)更加客氣、委婉的語氣。表達(dá)更加客氣、委婉的語氣。 e.g. Ken can climb up the tress like a koala. Tracy could ride a bicycle when she was five years old. You mustnt play with

14、fire. It is dangerous.Translation.1. 我們不能在教室里吃東西。我們不能在教室里吃東西。2. 首先你必須完成作業(yè)。首先你必須完成作業(yè)。3. 他現(xiàn)在不可能在家。他現(xiàn)在不可能在家。4. 她一定知道這個問題的答案。她一定知道這個問題的答案。We cant eat in the classroom. You must finish your homework first. He cant be at home now. She must know the answer to this question.4aFill in the blanks with the cor

15、rect forms of the verbs in brackets.Joe: _ you ever _ (take) part in an environmental project ?Eric: Yes, I have. I _ (help) with a Clean-Up Day last year. It was _ (consider) the biggest clean-up project this city _ ever _ (have).Have takenhelpedconsideredhadhad參加參加.Joe: How many people _ (take) pa

16、rt?Eric: I _ (think) more than 1,000 people _ (come) to help out.Joe: Thats fantastic! I guess everyone in this city is _ (try) to improve the environment.Eric: Yes, we cant afford to _ (wait) any longer to take action!tookthinkcametryingwaitv. 承擔(dān)得起承擔(dān)得起( (后果后果) ); 買得起買得起.4bFill in the blanks with th

17、e appropriatemodal verbs from the box.People _ think that big things_ be done to save the earth. Many forget that saving the earth begins with small things. For example, you _ savemay/mightmustcancan would couldhave to should mustmay/ might.electricity by turning off the lights when you leave a room

18、. You _ also use reusable bags instead of plastic bags. I think its 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 its far, you _ take the bus. All these couldhave to can/shouldcan/could關(guān)掉關(guān)掉adj.可重復(fù)使用的可重復(fù)使用的付

19、費付費;付出代價付出代價.small things _ add up and become big things that _ improve the environment. Lets take action now!couldwould/can采取行動采取行動. Make a list of things that people can do to help the environment and discuss your list with your partner.4 4c c. Discussing.練習(xí)題練習(xí)題.情態(tài)動詞練習(xí)情態(tài)動詞練習(xí)1.- _ you pass me a pen

20、? Id like to write down the phone number. - Sure. Here it is. A.Can B.Need C.Might D.Must2. - May I go to the cinema, Mum? - Certainly, but you _ be back by 11 oclock. A.can B.may C.must D. need3. You _ worry about me. Its nothing serious. A.cant B.mustnt C. neednt D. wont.4. - Excuse me. Is this th

21、e right way to the Summer Palace? - Sorry, Im not sure. But it _ be. A. might B. mustnt C.cant D.must5. The man in the office _ be Mr.Black, because he went home just now. A.musnt B.may not C.cant D.neednt.use to 練習(xí)練習(xí)A 她過去常常周末和朋友閑逛。她過去常常周末和朋友閑逛。She _ with friends on weekends.B 他習(xí)慣于每晚睡得很晚。他習(xí)慣于每晚睡得很晚。

22、 He _ at night.C. Ken used to be afraid of dogs.(改為一般疑問改為一般疑問句句)_?used to hang outis used to sleeping late/ staying upDid Ken use to be afraid of dogs.1. He promised to pick me up at the school gate. However, he _ yet. A. didnt arrive B. doesnt arrive C. isnt arriving D. hasnt arrived2. Ba Jin, one

23、of the greatest writers in China, _ as “Peoples Writer”. A. is regarded B. has regarded C. is regarding D. regardsChoose the best answer.3. Where is Tom? He _ in his room. A. is readingB. readsC. readD. was reading 4. May I go out now, Dad? No. You _ let your mother know first. A. can B. may C. need

24、 D. must.5. Her son _ coke, but now he _ milk.A. used to drink ; is used to drinking B. used to drinking ; drinksC. is used to drinking ; used to drink D. is used to drink ; is drinking.1. (2013江蘇淮安江蘇淮安) Its getting dark. Please _ the light. A. turn on B. turn off C. turn down D. turn around2. (2013湖北隨州湖北隨州)How does Jack usually go to work?He _ drive a car, but now he _ there to lose weight.A. used to; is used to walk B