1、( 情态动词和虚拟语气 ),Modal Verb and Subjunctive Mood,modal verb,情态动词怎么考？,1、单项选择 2、改错 3、书面表达,考什么？,1.情态动词can, could, may, might, must 表示推测的用法； 2. need, dare情态动词和实义动词的区别； 3. shall, should, will, would等重点情态 动词在句中的使用； 4.情态动词have done.,情态动词的特点：,1) 有含义, 有感情色彩 2) 不能单独做谓语 3) 有时态变化但无人称变化,常用的情态动词有：,can / could / may
2、/ might / must / shall / should / will / would / need / dare / ought to / used to / have to / had better / would rather / be able to,1. can / could / may / might / must 表推测,must,cant couldnt,may might could,can,maynt mightnt,can could,语气强,语气弱,以上表推测的情态动词后常接以下三种动词形式： + do (推测现在或将来） 2) + be doing (推测现在
3、正在进行的动作） 3) + have done (推测过去的动作）,1) - A man has just passed by. Who _ it be? _ it be Mr. Li?- No, it _ be him. He has gone abroad. -Then it _ be Mr. Wang.,2) Hurry up； they _ (一定正在等我们) .,3) Mother _ (可能已经知道了）everything.,4) Our house is on the top of the hill, and in winterthe winds _ be pretty cold
4、.A. can B. need C. must D. shall,2. need / dare 的用法：,情态动词常用在否定句或疑问句中，即： neednt do / darent do Need - do ? / Dare - do? 时态: ( need / needed ) ( dare / dared ),实义动词用于各种句式中，即： need to do / dare to do dont need to do / dont dare to doDo - need to do ? / Do - dare to do? 时态:( need / needed / needs ) ( da
5、re / dared / dares),2) She dare not to say what she thinks.,1) A child who is under 10 years old neednt a ticket .,3. shall 的用法：,一三人称疑问句表征求意见; 二三人称陈述句表说话人的语气（允诺，命令，禁止，威胁等）; 用于条文规定中,- Excuse me, but I want to use your computer to type a report.- You _ have my computer if you dont take care of it.A. s
6、hant B. might not C. neednt D. shouldnt 2) - We need a person badly to think up such an idea.- The new comer _ have a try?A. shall B. may C. should D. need,4. should 的用法：,表示义务或责任，“应该”。 表示较有把握的推测，“应该”, “按道理应该”。 表示惊讶的语气，“竟然”。 用在if条件句中表示“如果，万一”。If省略时倒装。,Its nearly seven oclock. Jack _ be here at any mo
7、ment.A. shall B. need C. should D. can 2) I cant imagine such a gentleman _ say so.A. should B. need C. may D. shall,3) Should you have enough energy left after a day on the slopes, you can take a dip in the pool, work out at the gym or go dancing in one of thecitys many hotels and clubs.,5. will /
8、would 的用法：,1）表示意愿，“愿意”。 2）表示倾向，“总是-，老是-”。,1) On Sundays when I was a child, Father and I _ get up early and go fishing.A. could B. would C. might D. should,2) I want to open the door, but _ （就是不开）,3) The manager isnt in, but he will see you if you _ for him.A. wait B. will wait C. waited D. is waiti
9、ng,6. had better / would rather的用法：,had better do / had better not do would rather do / would rather not do,7. have to / ought to / used to 的用法：,1)You had to work when you were my age,_? 2) You ought to work harder at your lessons._? 3) There used to be a big tree, _?_?,8. can /be able to 的用法:,can 表
10、示客观能力;be able to常表示“某事经过努力已成功做成”.,1) Although the fire spread very quickly, we _ escape. A. could B. were able to 2) If it were not for the fact that she_ sing，I would invite her to the party. A.couldnt B.shouldnt C.cant D.might not,情态动词have done： 两个功能：表示对过去的推测;对过去的虚拟.,对过去的推测,对过去的虚拟,- Is this the ri
11、ght bus for the Town Hall?- No, you _ 12. Jump out and get one there.A. mustnt catch B. mustnt have caughtC. shouldnt catch D. shouldnt have caught 2) As you worked late yesterday, you _ have come this morning.A. neednt B. maynt C. cant D. mustnt 3) - Why didnt you tell her the truth yesterday?- I _
12、, but she _ before I got there.A. did; would be away B. would; had been awayC. had; went away D. would have; had left,10. 其他需要注意的问题1） could / might / would 可以引起表示委婉的疑问句，但答语要用其原形。,- Could I come to see you tomorrow?,-,2） may / must / need 表“可以”，“必须”，“需要”时引起的疑问句，回答为：,-May I take this book out?,-,-Must
13、 we hand in our exercise books today?,- -,-Need I finish the work today?,-,3）情态动词表推测时的反意疑问句: He must be a doctor, _? He must have read the book, _? He must have seen the film last night, _? You must have stayed here for five days, _?,Why must you keep on troubling me with such questions while I am b
14、usy?You cannot be too careful to cross the road. You can never do the work too well.Its too late. You might as well not go.,subjunctive mood,1. if,without / but for otherwise / or if only / even if ( though ),现在_ 过去_ 将来_,If he _ ( take ) your advice, he would not have made such a bad mistake. 2) Wha
15、t would have happened _, as far as the river bank?A. Bob had walked fartherB. if Bob should walk fartherC. had Bob walked fartherD. if Bob walked farther 3) Without electricity human life _ quite different today.A. is B. would have beenC. would be D. will be,2. 现在wish 过去将来,as if ( though ),She regre
16、ts telling them the truth. How she wishes she _ !A. didnt B. hadnt C. wouldnt D. wasnt 2) When a pencil is put in a glass of water, it looks as if it _.A. breaks B. has brokenC. were broken D. had been broken,3. suggest / advise / propose / order / demand / command / require / request / insist,1) I
17、suggested that the little boy _ ( give )a good treatment without delay. 2) His pale face suggested he _( be ) not well.,4. It is necessary / possible / strange / important /natural that,+ ( should ) do,It is important that we _. shall close the window before we leave will close the window before we
18、leave must close the window before we leave close the window before we leave,+ (should ) do,5. It is ( high / about ) time that sb. did / should do,Its time that you _ the whole book.A. must go over B. can go overC. went over D. have gone over,6. would rather sb. did / had done,I would rather they _ next week.A. come B. came C. will come D. shall come,7. 通过完成形式表示虚拟,
