2013-12-19第九節(jié)非謂語情態(tài)動(dòng)詞jsp

1、非謂語動(dòng)詞二、考點(diǎn)分析1. 不定式結(jié)構(gòu)肯定：to do sth。否定：not to do sth動(dòng)詞不定式?jīng)]有人稱和數(shù)的變化。(1) 常見搭配有：表示愿望和想法的動(dòng)詞+to do sth.e.g. decide/wish/hope/agree/want. to do sth.常見的類似的動(dòng)詞還有：know, get, learn, wonder, love, like, would like, help, choose, fail, refuse， deny (2) 表示要求的動(dòng)詞+ to do sth. e.g. ask/tell sb. to do sth.常見的類似的動(dòng)詞還有：reque

2、st, order, demand, require,(3) 使役動(dòng)詞和感官動(dòng)詞在動(dòng)詞不定式作賓補(bǔ)時(shí)省略to，在被動(dòng)語態(tài)時(shí)要還原加上 to。使役動(dòng)詞：let, make, have.感官動(dòng)詞：see, listen to, notice, watch, hear, smell, taste, let/make/have sb.dosb.be let/made/had to dosee/watch/hear sb.dosb.be seen/watched/heard to do 如：1.Try to tell him about it before he goes away.Sure，I wil

3、l. 2. He often makes his mother feel worried.(主動(dòng))His mother is often made to feel worried by him.(被動(dòng)) 3. I often hear my neighbour sing English songs.(主動(dòng))My neighbour is often heard to sing English songs by me.(被動(dòng))2. Ving 結(jié)構(gòu)(1) 表示喜好的動(dòng)詞或短語后接V-ing。如：enjoy, like, love, hate, feel like, be keen on, be f

4、ond of(2) 某些行為動(dòng)詞或短語后面+ V-ing。如：miss, practice, keep, finish, mind, prefer, give up, look forward to, deny,admit,suggest,avoid 如：e.g. I wont go to bed until I finish doing my homework.3. 區(qū)別下列詞組go on to do(繼續(xù)做另一件事) go on doing(繼續(xù)做同一件事)remember(forget)to do(未做) remember(forget)doing(已做)stop to do(停下來做另

5、一件事) stop doing(停止正在做的事)see/hear sb.do(做完) see/hear sb.doing(正在做)try to do(努力做某事) try doing(嘗試做某事)如：Look at the sign on the wall！Stop taking photographs，please.(停止照相) After a long walk，we stopped to have a rest.(停下來休息)三、試題精萃歸類1. All the children like Mr White very much because he often makes themA.l

6、aughedB.laughC.laughingD.to laugh2. Would you mindme a sweater？I feel a little cold.Of course not.Ill go and get it right now.A.to getB. getC.gettingD.will get3. My uncle useda very good football player，but this was a long time ago.A.to beingB.beingC.beD.to be4. The final exams are coming.I think yo

7、u should ask your cousin Timyou.A.to helpB.helpsC.helpD.helped5. From that time on Mary practisedthe piano every day.A.playsB.playingC.playedD.to play6. Mr. Green wants to travel around the world because he enjoys _ new places.A. to see B. seeing C. sees D. see7. The teacher told the students _ any

8、food into the computer room.A. not to bring B. not bring C. dont bring D. to bring not8. I kept _ of what David would say when he come back.A. to think B. think C. thinking D. thought9. I asked her _ the bag because it was too expensive A.not to buy B.to buy not Cnot buying Dnot buy10. Please don

9、9;t do it for her. She is old enough _with this kind of problem by herself. A. deal B. to dealing C. to deal D. dealing情態(tài)動(dòng)詞二、考點(diǎn)分析1. 掌握各個(gè)常見情態(tài)動(dòng)詞的基本含義，一些詞的否定形式也要注意，如 needn't （不必要），don't have to （不必要），mustn't （禁止做），shouldn't （不應(yīng)該做），ought not to （不應(yīng)該做）。2. 情態(tài)動(dòng)詞動(dòng)詞原形。3. 情態(tài)動(dòng)詞沒有人稱、數(shù)的變化，即情態(tài)動(dòng)詞第三

10、人稱單數(shù)不加s?？忌鷳?yīng)注意以下情況：1. Must I 和 May I 的否定回答。(1)-Must I.？-No，you needn't.(2)-May / Can I.？-No，you mustn't(can't)./ No, youd better not.(3)Need I.？-Yes，you must. / No, you neednt.2. 理解表示肯定和否定的猜測的表達(dá)。肯定：may be(也許是)；can be(可能是)；must be(一定是)分別表示不同程度的猜測。否定：can' t be(不可能是)注意：mustn't“禁止”，不表

11、示猜測。3. had better 的否定形式：had better not doought to 的否定形式：ought not to do=oughtnt to do sthhave to do 的否定形式：don't have to dohas to do 的否定形式：doesnt have to dohad to do的否定形式：didnt have to do4. 理解 may be 與 maybe 的區(qū)別：may be 中是情態(tài)動(dòng)詞 may 加上動(dòng)詞原形 be，作句子的謂語部分，作“也許是”之意。而 maybe 是副詞，作“可能”意，相當(dāng)于 perhaps，一般放句首，做狀

12、語，表 “猜測”。e.g. Maybe you are right.可能你是對的。 You may be right.你也許是對的。5. 認(rèn)識 need 既可作情態(tài)動(dòng)詞，也可作實(shí)義動(dòng)詞。e.g.I need more money.我需要更多的錢。(作實(shí)義動(dòng)詞)They need do some shopping.他們需要購物。(作情態(tài)動(dòng)詞)My pet dog needs feeding twice a day.= My pet dog needs to be fed twice a day.我的寵物狗每天要喂食兩次。(作實(shí)義動(dòng)詞表被動(dòng))三、試題精萃歸類1. Mr White is of gr

13、eat help；youlet him go.A.had not betterB.had better dontC.had better notD.had no better2. My car has broken down.Could you please give me a ride tomorrow？Im sorry I.Im leaving for London tonight.A.cantB.mustntC.couldntD.shouldnt3. My boss told me that Icome to work late again or I would lose my job.

14、A.needntB.had better notC.dont needD.had not better4. I think that bicyclesfor this trip.It will be fun and good for our health.A.should useB.will useC.should be usedD.will be able to used5. This is just between you and me.Youtell anyone about this.A.mustntB.canC.shouldD.have not to6. -Im going to t

15、he post office this afternoon. Could you pick me up at three?-Sorry, I _ . Ill be in a meeting then. A. shouldnt B. mustnt C. neednt D. cant 7. It doesnt look like rain, so you _ bring your umbrella with you.A. shouldnt B. mustnt C. cant D. neednt8. Excuse me, can I smoke here? No, . A. you must B.

16、youd not better C. you can D. youd better not9. You be hungry after the long walkHelp yourself to some cakes Acant Bshouldnt Cneed Dmust10. -May I go out now, Dad? -No. You _ let your mother know first. A. may B. need C. can D. must( 3 ) Frogs are animals that can live both in water and on land. The

17、re are more than 5,000 kinds of frogs on the earth. The earliest known frogs lived about 190 million years ago and the frogs today still look the same. Here are some fun things that you might not know about frogs. Enjoy! The Biggest and the Smallest Frogs Some frogs can be very big. The biggest kind

18、 of frog is the Goliath Frog in West Africa. Its body can be nearly 30cm long, about the size of a large cat. The Gold Frog and the Poison Frog are the smallest frogs in the world. They are less than 1cm long. Though the Poison Frog is very small, it is not weak at all. It is dangerous. Any animal t

19、hat eats it will die very soon. The Best Jumpers Frogs are very good at jumping. They developed jumping legs so that they would not be eaten by other large animals. Using their big strong legs, more frogs can jump over 20 times their own length. It is like a person jumping over about 30.48m. The Aus

20、tralian Rocket Frog can even jump over 2m, which is 50 times its body length(5.5cm). That might be the reason why frogs are called the best jumpers on the earth. The Cryogenic Animal Some frogs like the Common Wood Frog have a special ability to live in very cold places. When the temperature goes down, they become ice frogs. 2/3 of their body water freeze