人教版九年級英語下冊第13單元課件

1、Unit13 Unit13 Unit13 Were trying to save the earth!Section A 1a -2d（第1課時） Unit13 Were trying to saveSe1. We should put up notice to stop from _ （亂扔）.2. The teacher asked us to find a way to pick up the coins at the _（底部）of the bottle.3. There are no more fish for _ （漁夫）to catch in the river.4. We sh

2、ould take the paper bags to go shopping instead of the _（塑料）ones.5. Could you please tell us another _（優(yōu)點） of riding bike to work?【檢查預(yù)習(xí)】litterbottomfishermanplasticadvantage1. We should put up notice to noise pollutionair pollutionwater pollution1a. Write the words related to different kinds of poll

3、ution in the box below.(Pairwork or groupwork)loud music cars rubbish planeslittering ships factories smokingbuilding houses mobile phones_loud musiccars rubbishplaneslitteringshipsfactoriessmokingbuilding housesmobile phonesnoise pollutionair pollutionwa1b. Listen and complete the sentences What wa

4、s the problem? The river was _.Even the bottom of the river was full of _. There were no more _ for fishermen to catch.What caused the problem?People are throwing _into the river.Factories are putting _ into the river.How should the problem be solved?We should write to the _ and ask them to _ the fa

5、ctories. Everyone should helpto _ the river.really dirtyrubbishfishlitterwastegovernmentclose downclean up1b. Listen and complete the se人教版九年級英語下冊第13單元課件PPT 1. The air is badly polluted because there are _ on the road these days. 2. Factories that burn coal also _ the air with a lot of black smoke.

6、3. There is also too much rubbish and waste. People _ things every day. 4. People are also litter in _ like parks. This is turning beautiful places into ugly places.2a Listen to the interview. the kinds of pollution that Jason and Susan talk about.A. waste pollution B. air pollution C. noise polluti

7、on D. water pollutionCircle2b. Listen again and complete the sentences.litteringmore carspolluteare throwing away2a Listen to the interview. 人教版九年級英語下冊第13單元課件PPT Read the conversation quickly, find out the answer to the question.What kinds of pollutionare mentioned in this conversation?2d. Air pollu

8、tion and waste pollution. 2.Read the conversation again and complete the blanks. Pollution Ways to solve the problem Air pollution Waste pollution Take the bus or subway instead of driving;ride a bike.bring a bag to go shopping; only use wooden chopsticks or plastic forks at home;Throw rubbish in th

9、e bins What kinds of pollutionare 人教版九年級英語下冊第13單元課件PPTThis is turning beautiful places into ugly ones. turn into 把變成e.g. The icy rain seemed like to turn into snow. 漸漸地凍雨又變成雪花的模樣。 Language pointsThis is turning beautiful plac2. Its good for health and it doesnt cost anything! cost v. 花費；使付出 指花費金錢，主語

10、通常是物。cost的過去式和過去分詞均為cost。 e.g. The new shirt cost Mr Wang 200 yuan. 王先生花了200元買了新襯衫。 How much does the new computer cost? 新電腦花了多少錢？2. Its good for health and ittake, spend, pay & costtake，spend，pay和cost都可以表示“花費”，但它們的用法各有不同。1) take多表示花費時間，常用于It takes sb. some time to do sth.這一句型中，其中it作形式主語。 e.g. It us

11、ually takes me 40 minutes to cook the dinner.take, spend, pay & cost2) spend多表示花費時間和金錢，主語通常是人，常用于sb. spend(s) some time / money on sth.和sb. spend(s) some time / money (in) doing sth.兩種句型。 e.g. David spent 2,000 yuan on the new machine. My father spends an hour (in) watching the news on TV every day.

12、2) spend多表示花費時間和金錢，主語通常是人，常用于s3) pay多表示花費金錢，主語通常是人，常用于sb. pay(s) some money for sth.句型。 e.g. Tommy paid 20 yuan for his breakfast yesterday.4) cost多表示花費金錢，主語通常是物，常用于sth. cost(s) (sb.) some money.句型。 e.g. The new dress cost Linda 88 yuan.3) pay多表示花費金錢，主語通常是人，常用于sb. pa根據(jù)句意用take, spend, pay或cost的適當(dāng)形式填空

13、。1. That new car _them lots of money.2. Mona _ 50 yuan on the books just now.3. It usually _ me an hour to do my homework.cost?spent?takes根據(jù)句意用take, spend, pay或cost的適當(dāng)c4. You should _? some time practising your pronunciation.5. My brother _?6, 000 yuan for the new computer yesterday.spendpaid4. You

14、should _? some3. So together, our actions can make a difference and lead to a better future! make a difference (to) 表示(對)產(chǎn)生影響或作用 e.g. Do you think his words would make any difference to the final decision? 你認(rèn)為他的話會對最后的決定產(chǎn)生影 響嗎？ 3. So together, our actions caThe new teacher always encourages little To

15、m. This has made a big difference to him.新來的老師總是鼓勵小湯姆，這對他影響很大。The new teacher always encoura用動詞的適當(dāng)形式填空。1. Were trying _ (save) the earth.2. There used to _ (be) clean and beautiful.3. There are too many _ for _ to catch (fish).4. Its bad for environment to use _ (wood) chopsticks.to savebefishwooden

16、fishermen用動詞的適當(dāng)形式填空。to savebefishwooden用方框中所給詞的適當(dāng)形式填空。1. Dont throw _(垃圾) everywhere.2. In winter, many people burn _(煤) to keep warm.3. The police found a body at the _(底部) of the lake.4. The _(花費) of living in big cities is very high.5. He keeps a rabbit in a big _(木制的) box.cost wooden, coal , bot

17、tom, littercost woodencoalbottomlitter用方框中所給詞的適當(dāng)形式填空。cost wooden, 根據(jù)句意用take, spend, pay或cost的適當(dāng)形式填空。1. That new car _them lots of money.2. Mona _ 50 yuan on the books just now.3. It usually _ me an hour to do my homework.costspenttakes根據(jù)句意用take, spend, pay或cost的適當(dāng)c4. You should _ some time practisin

18、g your pronunciation.5. My brother _6, 000 yuan for the new computer yesterday.spendpaid4. You should _ some3. So together, our actions can make a difference and lead to a better future! make a difference (to) 表示(對)產(chǎn)生影響或作用 e.g. Do you think his words would make any difference to the final decision?

19、你認(rèn)為他的話會對最后的決定產(chǎn)生影 響嗎？ 3. So together, our actions caThe new teacher always encourages little Tom. This has made a big difference to him.新來的老師總是鼓勵小湯姆，這對他影響很大。The new teacher always encouraPoints on P97try to do =try ones best to do 努力去做某事be related to 與有關(guān)mobile phones 手機(jī)rubbish, litter ,waste 垃圾,廢物the

20、 bottom of the river 河底be full of 充滿fisherman-fishermen 漁民government 政府throw litter into the river 把垃圾扔到河里ask sb. to do 要求某人干某事close down the factories 關(guān)閉工廠clean up 打掃used to be過去是play a part in參與，在中扮演角色 Points on P97Memory努力去做某事與有關(guān)手機(jī)垃圾,廢物河底充滿漁民政府把垃圾扔到河里要求某人干某事關(guān)閉工廠打掃過去是在中起作用，在中扮演角色 MemoryPoints on P

21、98be badly polluted 受到嚴(yán)重污染public places 公共場所turninto 把變成cut down 減少take the bus or subway instead of driving 乘坐公交或地鐵代替開車ride a bike 騎自行車advantages of bike riding 騎自行車的好處 Points on P98Points on P58be good for our health 對我們的健康有好處cost，spend，take, pay 花費wood-woodentakeaway food 外賣食物throw rubbish in the

22、 bins 把垃圾扔進(jìn)垃圾箱keep public places clean and beautiful 保持公共場所干凈漂亮make a difference (to) (對)產(chǎn)生影響或作用lead to 導(dǎo)致，通向 Points on P58被污染燒煤太多扔掉把變成附近能夠解決問題減少空氣污染乘公共汽車或地鐵代替、而不是be pollutedburn coaltoo muchthrow awayo.around herebe able tosolve a/the problemcut down air pollutiontake the bus or subwayinstead of被污染

23、be polluted騎自行車騎自行車有別的好處。對有益垃圾污染去購物開始做某事記得要把垃圾扔進(jìn)垃圾桶保持公共場所的整潔和美麗對有影響、有作用通向美好未來ride the bikeThere are other advantages of bike riding.be good forwaste pollutiongo shoppingstart doingremember to throw rubbish in the binskeep public places clean and beatifulmake a difference to sb.lead to a better futur

24、e騎自行車ride the bike用動詞的適當(dāng)形式填空。1. Were trying _ (save) the earth.2. There used to _ (be) clean and beautiful.3. There are too many _ for _ to catch (fish).4. Its bad for environment to use _ (wood) chopsticks.to savebefishwoodenfishermen用動詞的適當(dāng)形式填空。to savebefishwooden用方框中所給詞的適當(dāng)形式填空。1. Dont throw _(垃圾)

25、everywhere.2. In winter, many people burn _(煤) to keep warm.3. The police found a body at the _(底部) of the lake.4. The _(花費) of living in big cities is very high.5. He keeps a rabbit in a big _(木制的) box.cost wooden, coal , bottom, littercost woodencoalbottomlitter用方框中所給詞的適當(dāng)形式填空。cost wooden, 1.We are

26、 trying to save the earth.我們正在努力拯救地球。 【解析】try doing sth 嘗試做某事（不一定付出很大努力） try to do sth 盡力做某事（強(qiáng)調(diào)付出一定的努力設(shè) 法完成） 想一想? 盡某人最大的努力做某事 try_ 2. But it used to be so clean. 但它過去是如此干凈。 【解析】used to 的意思是 _, 其中to是不定式符號，不是 介詞，所以其后要接_。 be used to 的意思是_，其中to是介詞，其后要接 _ 【合作探究】ones best to do sth.習(xí)慣干某事過去常常做某事動詞原形doing2.

27、 He _ go out with his parents, but now he _ staying at home alone. A. used to; is used to B. is used to; used to C. use to; is used to D. is used to; is used to 1.We are trying to save the How much is the ticket to Central Park? A one-way ticket _ $40, and you can _ another $20 for a round-trip. A.

28、costs, pay B. cost, spend C. pay, spend D. spends, pay【合作探究】3. Its good for health and it doesnt cost anything! 它對身體有好處并且不會花費任何東西。 cost vt.1. 花費；價格為； 【拓展】take/ spend /cost /pay的用法都可以表示“花費”，但用法卻不盡相同。spend的主語必須是_， 常用于 _ cost的主語是物或某種活動， 還可以表示“值”，用于 _ （注意：cost的過去式及過去分詞都是cost,并且不能用于被動句。） take后面常跟雙賓語， 常見于

29、_ pay的基本用法是：_人Sb. spend time/money on sth.Sb. spend time/money doing sth.cost sb. money. It takes sb. sometime to do sth.pay money for sth. How much is the ticket4.To cut down air pollution, we should take the bus or subway instead of driving. 為了減少空氣污染，我們應(yīng)當(dāng)乘坐公汽或地鐵而不是開車。 本句中To cut down air pollution是

30、動詞不定式作目的狀語。cut down 意為_減少 We must do something useful to _ pollution. A. cut off B. cut up C . cut down D. cut in 4.To cut down air pollution, wI. 單項選擇。1. Eating too much sugar can _ healthy problems. A. get to B. lead to C. point to D. able to2. What are the _ of bike riding? Its good for our healt

31、h. A. advantages B. reasons C. results D. ideasII. 用所給詞的適當(dāng)形式填空。 1. There are many kinds of_（pollute）in our daily life. 2. All of the students should take part in_ (keep) our school clean and tidy. 3. Can you tell us your ideas for _ (improve) your spoken English. 4. We should stop using the_ (wood)

32、chopsticks to protect the forest. 5. Their grandparents were _ (fisherman) near the sea before they moved to the town.當(dāng)堂檢測B.A.pollutionkeepingimprovingwoodenfishermanersI. 單項選擇。當(dāng)堂檢測B.A.pollutionkeepiIII. 根據(jù)漢語意思完成下列句子。 1. 咱們玩紙牌吧，別看電視了。 Lets play cards _ _ watching TV. 2. 我們的行動會起作用，并且通向更好的未來。 Our acti

33、ons can _ a difference and lead to a _ future. 3. 這個木箱時裝滿了書。 The _box_ _ _books. is full ofinstead ofmakebetterwoodenIII. 根據(jù)漢語意思完成下列句子。is Homework We have only one earth,find out as many ways to solve pollution problems as possible. _.Homework We have only one Bye ByeBye ByeUnit 13Were trying to sav

34、e the earth!Section APeriod ThreeUnit 13Were trying to save thtake part inaffordturn offreusablepay fortake actiontransportation參加v. 買的起；承擔(dān)的起（后果）關(guān)掉adj. 可重復(fù)使用的付費；付出代價采取行動n. 運輸業(yè)；交通運輸Words Reviewtake part in參加Words Review用括號內(nèi)所給動詞的適當(dāng)形式填空。Listen! The phone _(ring). Please go to answer it. Alan, its late.

35、 Why not go to bed? Jenny hasnt come back yet. I _(wait) for her. 3. Whats your father doing now? He _ (write) a letter in the study.is ringingam waitingis writing用括號內(nèi)所給動詞的適當(dāng)形式填空。is ringingam w 肯定句: 主語 + am/is/are + -ing 否定句: 主語 + am/is/are + not + -ing 疑問句: Am/Is/Are + 主語 + -ing 現(xiàn)在進(jìn)行時現(xiàn)在進(jìn)行時表示現(xiàn)在或現(xiàn)階段正

36、在進(jìn)行或發(fā)生的動作?，F(xiàn)在進(jìn)行時-基本結(jié)構(gòu) 肯定句: 主語 + am/is/are + -ing 現(xiàn)表示說話時正在進(jìn)行的，目前正在發(fā)生的動作。常帶有表示目前時刻的時間副詞, 如：now, at the (very) moment, for the time being, at present, 及Look! Listen! . Look! The big bird is flying away. 看，那只大鳥正在飛走。 He is watching a movie now. 他現(xiàn)在正在看電影。 現(xiàn)在進(jìn)行時-用法表示說話時正在進(jìn)行的，目前正在發(fā)生的動作。常帶有表示目前時刻2) 表示目前一段時間內(nèi)正

37、在進(jìn)行，但 說話時可能沒有進(jìn)行的動作。 Right now I am studying Chinese by distance learning. 我現(xiàn)在正通過遠(yuǎn)程教育學(xué)習(xí)漢語?，F(xiàn)在進(jìn)行時-用法2) 表示目前一段時間內(nèi)正在進(jìn)行，但Right now I 3) 與always, constantly, forever, all the time等副詞連用，表示動作反復(fù)或習(xí) 慣。此時句子常含有說話者的強(qiáng)烈 情感在內(nèi)。表達(dá)較強(qiáng)的“責(zé)備”或“表 揚”之意。 You are always changing your mind. 你總是主意不定。(太煩人了。) He is always helping o

38、thers. 他總是幫助別人。(他真是個好人。) 現(xiàn)在進(jìn)行時-用法3) 與always, constantly, foreve4) 對于come, go, leave, arrive, start等 表示位置移動的動詞?？捎眠M(jìn)行時 態(tài)表將來。 He is leaving on Wednesday. 他將于周三離開。 Mary isnt here at the moment. She is coming later. 瑪麗現(xiàn)在不在這兒，她一會兒來。現(xiàn)在進(jìn)行時-用法4) 對于come, go, leave, arrive, I called you at 4:00 yesterday aftern

39、oon, but no one answered. Sorry, I _ with my friends at that time. (2011河南) A. swim B. swam C. will swim D. was swimming考點例析 I called you at 4:00 yesterd【考點點撥】 過去進(jìn)行時表示過去某一時刻或某階 段正在進(jìn)行的動作，其謂語由“was / were + 現(xiàn)在分詞”構(gòu)成。 常與過去進(jìn)行時連用的時間狀語有： then, at that time, this time yesterday, at ten yesterday等。【考點點撥】用括號內(nèi)所

40、給動詞的適當(dāng)形式填空。1. Id like to introduce my best friend to you, Peter. Thank you, Lucy. But we _ (meet) already.2. Look at these stamps. I _ (keep) them for five years. Wow, they are wonderful.have methave kept用括號內(nèi)所給動詞的適當(dāng)形式填空。have methave k肯定句：主語 + have / has + 過去分詞 + 其他否定句：主語 + havent / hasnt + 過去分 詞 + 其

41、他一般 Have / Has + 主語 + 過去分詞 + 疑問句：？肯定答語：Yes, 主格代詞 + have / has.否定答語：No, 主格代詞 + havent / hasnt.現(xiàn)在完成時-構(gòu)成肯定句：主語 + have / has + 過去分詞 + 現(xiàn)1. 表示動作到現(xiàn)在為止已經(jīng)完成或剛剛完成。2. 動作發(fā)生在過去，強(qiáng)調(diào)對現(xiàn)在的結(jié)果、 影響等。3. 表示動作發(fā)生在過去，并且一直持續(xù)到現(xiàn)在，甚至還可能繼續(xù)下去，句中使用持續(xù)性動詞，且常有表示一段時間的時間狀語。4. 現(xiàn)在完成時可以用在條件或時間狀語從句中，表示將來某個時刻之前已經(jīng)完成的動作?，F(xiàn)在完成時-用法1. 表示動作到現(xiàn)在為止已經(jīng)完

42、成或剛剛完成?，F(xiàn)在完成時-用1) 現(xiàn)在完成時 + since + 點時間狀語(名詞、短語、從句，其中從句用一般過去時)2) 現(xiàn)在完成時 + for + 段時間狀語 3) It / This is the first / 其他序數(shù)詞 / last time + that 從句中，從句使用現(xiàn)在完成時。1) Mary has been ill since three days ago. 2) Mary has been ill for three days. 3) It is the first time that I have visited the city.This is the best f

43、ilm that Ive (ever) seen. 現(xiàn)在完成時-句型1) Mary has been ill since thr六種時態(tài)一覽表時態(tài)一般現(xiàn)在時一般過去時現(xiàn)在進(jìn)行時過去進(jìn)行時一般將來時現(xiàn)在完成時用法表示經(jīng)常性發(fā)生的動作、習(xí)慣性動作或客觀真理、科學(xué)事實等。表示過去某個時間發(fā)生的動作或存在的狀態(tài)。表示現(xiàn)在或現(xiàn)階段正在進(jìn)行或發(fā)生的動作。表示過去某時正在進(jìn)行的動作或存在的狀態(tài)。表示將來某個時間要發(fā)生的動作或存在的狀態(tài)。表示過去發(fā)生或者未發(fā)生的事對現(xiàn)在造成的影響或結(jié)果。 構(gòu)成方式1. 動詞be(am/is/are) + 表語2. 動詞原形 + (主語是第三人稱單數(shù)，動詞也用第三人稱單數(shù))1.

44、 動詞was/were + 表語2. 實義動詞的過去式 + be(am/is/are) + 動詞的現(xiàn)在分詞was / were + 動詞的現(xiàn)在分詞1. will/shall + 動詞原形(shall 用于第一人稱)2. be going to + 動詞原形主語 + have / has + 過去分詞 + 句型變化疑問式1. Be + 主語 + ?2. Do/Does + 主語 +動詞原形+ ?1. Was/Were + 主語 + ?2. Did + 主語 + 動詞原形 + ?Be + 主語 + 動詞的現(xiàn)在分詞 + ?Was / Were + 主語 + 動詞的現(xiàn)在分詞 + ？1. Will/Sh

45、all + 主語 + 動詞原形+ ?2. Be + 主語+ going to + 動詞原形 + ?Have / Has + 主語 + 過去分詞 + ？否定式1. 主語 + be + not + 2. 主語+dont/doesnt + 動詞原形 + 1. 主語 + was/were + not +2. 主語 + didnt + 動詞原形 + 主語 + be + not + 動詞的現(xiàn)在分詞 + 主語 + wasnt (was not) / werent (were not) + 動詞的現(xiàn)在分詞 + 1. 主語 + will/shall not + 動詞原形 + 2. 主語 + be + not +

46、 going to + 動詞原形 + 主語 + havent / hasnt + 過去分詞 + 六種時態(tài)一覽表時態(tài)一般現(xiàn)在時一般過去時現(xiàn)在進(jìn)行時過去進(jìn)行時一用括號內(nèi)所給動詞的適當(dāng)形式填空。1. The Secondary School Entrance Exams _ (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. is heldwas heardwill

47、 be built用括號內(nèi)所給動詞的適當(dāng)形式填空。1. The Seconda被動語態(tài)表示主語是謂語動作的承受者，被動語態(tài)由“be + 過去分詞”構(gòu)成。be隨著主語人稱和數(shù)以及時態(tài)的不同而變化。含有情態(tài)動詞的被動語態(tài)由“can / must / may / should + be + 過去分詞”構(gòu)成。被動語態(tài)被動語態(tài)表示主語是謂語動作的承受被動語態(tài)The first section of New College English is designed for speaking practiceand is based on pictures and topics.These computers

48、 were made in our own country last year.Shall we be asked to attend the opening ceremony?一般現(xiàn)在時的被動語態(tài)：am/is/are + 過去分詞 一般過去時的被動語態(tài)：was/were+過去分詞 一般將來時的被動語態(tài)：will/shall+be+過去分詞 一般現(xiàn)在時的被動語態(tài)：am/is/are + 過去分詞 1. 有些動詞可以有兩個賓語，在用于被動結(jié)構(gòu)時，可以把主動結(jié)構(gòu)中的一個賓語變?yōu)橹髡Z，另一賓語仍然保留在謂語后面。通常變?yōu)橹髡Z的是間接賓語(指人的賓語）。一些特殊的被動語態(tài)They didnt offe

49、r Ann the job. Ann wasnt offered the job. 1. 有些動詞可以有兩個賓語，在用于被動結(jié)構(gòu)時，可以把主動結(jié)2. 在使役動詞have, make, get以及感官動詞see, watch, notice, hear, feel, observe等后面不定式作賓語補(bǔ)語時，在主動結(jié)構(gòu)中不定式to要省略，但變?yōu)楸粍咏Y(jié)構(gòu)時，要加 to。They make her clean the floor. She is made to clean the floor by them.2. 在使役動詞have, make, get以及感官動詞s3. It + be + 過去分詞

50、 + that從句 (=主語+ be + 過去分詞 + to do sth.)表示：據(jù)說/據(jù)報道/據(jù)悉/據(jù)信等據(jù)說這個男孩已經(jīng)通過了這次全國性的測試。It is said that the boy has passed thenational exam. The boy is said to have passed thenational exam.3. It + be + 過去分詞 + that從句 (=主1. 某些感官動詞加形容詞及少數(shù)其他的動詞本身可以表示被動意義。smell, taste, prove, sell, etc.1) The dish tastes delicious. 2

51、) The theory proved right at last.3) The book is so interesting that it sells well. 不可以變成被動語態(tài)的情況1. 某些感官動詞加形容詞及少數(shù)其他的動詞本身可以表示被動意need + V- ing 表示“主語承受動詞發(fā)出的動作”，表示被動意義。我的車需要修理。My car needs repairing. (= to be repaired). 戰(zhàn)爭爆發(fā)了。The war broke out.但不能說：The war was broke out.3. 通常只有及物動詞（組）才有被動語態(tài)，不及物動詞沒有。need

52、+ V- ing 表示“主語承受動詞發(fā)戰(zhàn)爭爆發(fā) “be + 過去分詞”這個結(jié)構(gòu)并不都是被動語態(tài)，也可能是系表結(jié)構(gòu)。被動語態(tài)與系表結(jié)構(gòu)主要區(qū)別是：被動結(jié)構(gòu)表示一個動作，而系表結(jié)構(gòu)表示主語的特點或所處的狀態(tài)，試比較下面的句子：被動結(jié)構(gòu)與系表結(jié)構(gòu)的區(qū)別 “be + 過去分詞”這個結(jié)構(gòu)并不都是被動語態(tài)，也可能是系The enemy was soon surrounded by us.The house is surrounded by trees.She was bitten by the dog in the darkness. I was excited by the news that my h

53、usbandgot promoted.被動結(jié)構(gòu)系表結(jié)構(gòu)被動結(jié)構(gòu) 系表結(jié)構(gòu)The enemy was soon surrounded 時態(tài)主動語態(tài)被動語態(tài)一般現(xiàn)在時do / doesam / is / are + done一般過去時didwas / were + done一般將來時will / be going to + dowill / be going to + be + done一般現(xiàn)在時、一般過去時和一般將來時的主動結(jié)構(gòu)和被動結(jié)構(gòu) (以動詞do為例)：時態(tài)主動語態(tài)被動語態(tài)一般現(xiàn)在時do / doesam / iWe can do it by ourselves.It must be To

54、ms. Look at his name on the cover. 3.Im sorry. Children mustnt swim here. 4.May see you ID card, sir?5.Will you pass me the book?指出下列劃線動詞的種類。情態(tài)動詞 情態(tài)動詞 情態(tài)動詞 情態(tài)動詞 We can do it by ourselves.指出下列情態(tài)動詞情態(tài)動詞具有一定的意義，但不能單獨作謂語，其后需接動詞原形一起構(gòu)成句子的謂語。情態(tài)動詞(除have to以外)沒有人稱和數(shù)的變化。另外，情態(tài)動詞可用來構(gòu)成否定句、疑問句并進(jìn)行簡略回答。初中常見的情態(tài)動詞有：ca

55、n, may, must, need, have to, could, should, ought to 等。情態(tài)動詞情態(tài)動詞具有一定的意義，但不能單獨作謂語，其后需接動考點一：考查表示“能力”的情態(tài)動詞 1. _ your Australian friend eat with chopsticks? Yes, but she cant use them well. A. Should B. Need C. Can D. Must2. The work is too hard for us. We _ finish it on time. A. cant B. mustnt C. should

56、nt D. neednt 情態(tài)動詞考點考點一：考查表示“能力”的情態(tài)動詞 1. _3. Could your father play golf when he was young? No, he _. But he _ play table tennis. A. couldnt; could B. neednt; might C. mustnt; should D. shouldnt; need 【考點點撥】 情態(tài)動詞can表示“能力”時，與be able to同義，其否定形式為cant。can表示現(xiàn)在的能力，其過去式could表示過去的能力。3. Could your father play

57、 go考點二：考查表示“應(yīng)該”的情態(tài)動詞 1. _ weto finish our homework before noon? Yes, you _. A. Need; can B. Have; do C. Ought; ought to D. Should; must2. You _ study hard if you want to be a scientist in the future. A. may B. should C. would D. could 考點二：考查表示“應(yīng)該”的情態(tài)動詞 1. _【考點點撥】 情態(tài)動詞should和ought to都可表示“應(yīng)該”，但should側(cè)

58、重說話者主觀的看法，而ought to更側(cè)重客觀情況。 should的否定形式為shouldnt，ought to的否定形式為oughtnt to或ought not to?！究键c點撥】考點三：考查表示“請求；許可”的情態(tài)動詞及其回答 1. _ I borrow your maths book? Sure. Here you are. A. Need B. Will C. May D. Must 考點三：考查表示“請求；許可”的情態(tài)動詞及其回答2. _ I take some photos in the hall? No, you _. Look at the sign “No photos”

59、! A. Can; neednt B. Must; mustnt C. Should; neednt D. May; mustnt 3. Could I use your dictionary for a while? Yes, of course you _. A. could B. can C. will D. should 2. _ I take some phot【考點點撥】 情態(tài)動詞may和can都可表示“請求；許可”。may比can正式，could在表示“請求；許可” 時，既可表示過去，也可表示語氣的委婉。 當(dāng)“May / Can / Could I ”表示“請求；許可”時，肯定回

60、答常用“Yes, please.” / “Certainly.”等，否定回答常用“No, you cant / mustnt.”等?！究键c點撥】考點四：考查表示“推測”的情態(tài)動詞1. I saw Lily in the supermarket this morning. Oh, it _ her. She moved to Australia the day before yesterday. A. can be B. must be C. cant be D. mustnt be考點四：考查表示“推測”的情態(tài)動詞1. I saw Li2. After a long walk, the chi