英語九年級(jí)全冊(cè)Unit13SectionAgrammarfocus教學(xué)課件-人教新目標(biāo)版

1、Unit 13Were trying to save the earth!Section A 3 Grammar FocusUnit 13Section A 3 Revision 不同種類的污染2. 河底3. 把垃圾扔到河里4. 在中起作用different kinds of pollutionthe bottom of the riverthrow rubbish into the riverplay a part inI. Check if you know these phrases.5. 在中國南部6. 對(duì)有害7. 在頂部8. 海洋生態(tài)系統(tǒng)in southern Chinabe har

2、mful to at the top ofthe oceans ecosystemRevision 不同種類的污染different kindII. Translation.1. 這個(gè)方法不僅殘酷還對(duì)環(huán)境有害。This method is not only cruel, but also harmful to the environment.2. 鯊魚處于海洋食物鏈的頂部。3. 許多人相信魚翅對(duì)健康有好處。Sharks are at the top of the food chain in the oceans ecosystem.A lot of people believe that sh

3、arks fins are good for health.II. Translation.1. 這個(gè)方法不僅殘酷還對(duì)環(huán)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.5. We should help save the sharks.Present

4、progressiveused toPassive voicePresent perfectGrammar FocusModal verbsPay attention to the sentences現(xiàn)在進(jìn)行時(shí): Present progressive結(jié)構(gòu): be (am/is/are) + v.-ing標(biāo)志詞：Look, Listen, now, right now, these days, this month e.g. Look! The boy is crying. Mr. Green is writing a book these days.定義：表示說話時(shí)(瞬間)正在進(jìn)行的動(dòng)作,

5、也表示目前或現(xiàn)階段正在進(jìn)行的動(dòng)作。 現(xiàn)在進(jìn)行時(shí): Present progressive結(jié)構(gòu): What a fine day today! Look! What are they doing?ExerciseWhat a fine day today! Exercisused to do sth. 表示過去常常做某事, 而現(xiàn)在往往不做了, 后 接動(dòng)詞原形。be used to doing sth. 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

6、.used to do與be used to doingused to do sth. 表示過去常常做某事, 而現(xiàn)在1. 她過去常常周末和朋友閑逛。 She used to hang out with friends on weekends.2. 他習(xí)慣晚睡。 He is used to staying up.Exercise1. 她過去常常周末和朋友閑逛。Exercise被動(dòng)語態(tài)：Passive voice定義：表示主語是動(dòng)作的承受者，即行為動(dòng)作的對(duì)象的 一種語態(tài)。結(jié)構(gòu)：be + 過去分詞 e.g. A new school was built last year. Our classroo

7、m is cleaned every day.被動(dòng)語態(tài)：Passive voice定義：表示主語是動(dòng)作的承Translate the sentences by using Passive voice.1. 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(jī)器工作。The museum was visited by some old people just now. Different kinds of machines are used to work by the workers. ExerciseTranslate the sentences by usi結(jié)構(gòu): has/have +

8、 過去分詞標(biāo)志詞：already, yet, ever, never, since, for e.g. I havent finished my homework yet.定義：表示動(dòng)作已經(jīng)完成, 但對(duì)現(xiàn)在造成影響; 或者表示從過去某一時(shí)間開始一直延續(xù)到現(xiàn)在并還可能持續(xù)下去的動(dòng)作。 現(xiàn)在完成時(shí): Present perfect結(jié)構(gòu): has/have + 過去分詞定義：表示動(dòng)作已經(jīng)完Complete the following sentences. I _ (be) in Beijing for two years.2. I _ never _ (hear) of that man befor

9、e.3. Tom _ (work) there since two years ago.have beenhaveheard has workedExercise4. The twins _ (wash) the clothes for an hour.5. He _ (play) basketball since three years ago.6. How long _ Sally _ (sing) yet?have washedhas playedhassungComplete the following sentenc1. 情態(tài)動(dòng)詞本身有一定的詞義, 表示說話人的情緒、態(tài)度或語氣, 但

10、不能單獨(dú)作謂語, 只能與其他動(dòng)詞構(gòu)成謂語。 常見的有: can (could), may (might), must, need, shall (should), will (would)等。情態(tài)動(dòng)詞2. 情態(tài)動(dòng)詞無人稱和數(shù)的變化, 后接動(dòng)詞原形。否定式是在情態(tài)動(dòng)詞后面加not。個(gè)別情態(tài)動(dòng)詞有過去式形式, 可用來表達(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 fire.

11、It is dangerous.1. 情態(tài)動(dòng)詞本身有一定的詞義, 表示說話人的情緒、態(tài)度或語1. 我們不能在教室里吃東西。2. 首先你必須完成作業(yè)。3. 他現(xiàn)在不可能在家。4. 她一定知道這個(gè)問題的答案。ExerciseWe 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.1. 我們不能在教室里吃東西。ExerciseWe can4aFill in the blanks with th

12、e correct 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 Joe: How many people _ (take) p

13、art?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!tookthinkcametryingwait4aFill in the blanks with the 4bFill in the blanks with

14、 the appropriate modal 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. may/mightmust/ have to can would could have to should must may/ might For example, you _ save electricity by turning off the lights when y

15、ou leave a room. You _ also use reusable bags instead of plastic bags. can/ could/ shouldcould/ can/ should4bFill in the blanks with the 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, yo

16、u _ take the bus. have to can/should/ couldcan/could All these small things _ add up and become big things that _ improve the environment. Lets take action now!can/ couldwould/can/ couldI think its a great idea that4cMake a list of things that people can do to help the environment and discuss your l

17、ist with your partner.use public transportation (n.交通運(yùn)輸);turn off the lights when you leave a room; use reusable bags instead of plastic bags; ride your bike or walk to school or work; stop using paper napkins (n. 餐巾紙);recycle books and paper4cMake a list of things that pDiscussionI think that every

18、one should use public transportation.I disagree. Its difficult for parents with young children to use public transportationDiscussionI think that everyon1. We cant afford to wait any longer to take action! afford v. 承擔(dān)得起;買得起；提供, 給予 常與can, be able to連用 afford sth. 買得起/承受得起某物 afford to do sth. 有能力做某事/

19、負(fù)擔(dān)得起做某事e.g. Can you afford the mobile phone? We cant afford to pay such a price. 1. We cant afford to wait anyafford & buyafford側(cè)重“有經(jīng)濟(jì)能力買”，而buy則側(cè)重“購買(這一行為)”。表示“我買不起”可以說I cant afford .，但不能說I cant buy .。根據(jù)句意，用afford或buy的適當(dāng)形式填空。1) They cant _ to send their children to college.2) Can you _ a new car?3)

20、Helen _ some fruit on her way home yesterday.affordaffordbuyafford & buy根據(jù)句意，用afford或buy的適2. save electricity by turning off the lights when you leave a room. turn off 關(guān)掉 e.g. Please turn the television off before you go to bed. 睡覺前請(qǐng)關(guān)掉電視。turn on 打開, 發(fā)動(dòng) turn around 轉(zhuǎn)身 turn up 調(diào)高(音量) turn down 調(diào)低; 拒絕t

21、urn into 變成; 進(jìn)入 turn over 移交拓展: turn相關(guān)短語2. save electricity by turnin根據(jù)短文內(nèi)容及括號(hào)內(nèi)所給(短語)動(dòng)詞的提示，用正確的時(shí)態(tài)或語態(tài)補(bǔ)全短文，使短文完整、通順。The clockwork radio (發(fā)條式收音機(jī)) is the only radio that doesnt need batteries (電池) or electricity. It is powered by turning the handle (手柄) for a minute. Nowadays, thousands of these radios

22、(1)_(make) every day.The clockwork radio (2)_ (invent) in 1991 by Trevor Bayliss, a British inventor. Trevor had the idea while he (3)_(listen to) some news on the radio aboutare madewas listening towas invented根據(jù)短文內(nèi)容及括號(hào)內(nèi)所給(短語)動(dòng)詞的提示，用正確的時(shí)態(tài)或語Africa. It (4)_(report) that Africans were dying of Aids and there was no easy way to send them information about the disease. But no one would help Trevor