高中情态动词和虚拟语气讲解与练习附答案

1、精选优质文档-倾情为你奉上高中英语情态动词和虚拟语气情态动词：记住下面三个方面的用法，可以快速地掌握情态动词。在遇到情态动词的题的时候，一定要先判断出题目考察的是下面3个的哪个方面。1. 常规（所有）， 2.判断/推测(5个 +1个), 3.用于虚拟语气的情态动词(5个)1. 常规：所有的情态动词都有常规的形式，大多12个。Can: 表示“能力”，表示“请求或允许”。Could : 用法同上，语气较can轻。Must : “必须/一定，应当”；“偏要”。May : 可能/可以，表示“征求对方意见或允许”，或“祝愿”Might : 用法同上，语气较may轻。Should : 表示“应该，惊讶，委

2、婉/客气”。Ought to: 用法同上，语气较should重。Will : “愿，要，会” 表示“意愿，征求意见或提出请求，或执意/决心。Would : 用法同上，语气较will轻。Shall : 征求对方意见；警告/承诺（用于法律或规定中）；应该/必须（语气比should重）need/dare：两个“半”情态动词，在肯定句中只能用need/dare + to do 在否定/疑问句中可用need/dare + to do 或 need/dare + do2. 推测/判断：在高中英语中能用作推测或判断的情态动词大多是: can > could （语气由重到轻，用于否定货疑问句中） mus

3、t > may > might （语气由重到轻，用于肯定句中） should 可用于各种（肯定，否定，疑问）句式中，只能用should + do的形式对“现在”的事的判断的用法：can/could must/may/might + do/be+doing对“过去”的事的判断的用法：can/could must/may/might + have done当然其他的情态动词在特殊的情况下也可以用于推测/判断，但不常用所以不必记忆。3. 可以用于虚拟语气的情态动词有以下5个：Should(应该), would（将,愿，要，会） could（能）, might（可能,可以）ought to

4、（应该，语气比should强）。八、虚拟语气：当事情不会发生或发生的可能性很小时，要用虚拟语气。虚拟的事情可能发生在“现在”，“过去”或“将来”。一定要先辨别出虚拟的情况发生在“什么时候”，记住下面的表格和后面的几个特殊单词你就会用虚拟语气了。不用情态动词用情态动词虚拟的情况发生在“现在”be - weredo - did5个情态动词 + do虚拟的情况发生在“将来”be - weredo - did were to doshould(译为“将”不作情态动词) + do 5个情态动词 + do虚拟的情况发生在“过去”had + done/been5个情态动词 + have done是否使用情态

5、动词取决于句义，如果需要用情态动词的词义时就用should, could, would, might, ought to 中的某一个。在下面的12个及物动词后的宾语从句中要用虚拟语气：三个“建议”： advise, suggest, propose 三个“要求”： ask, require/request, demand两个“命令”： order, command一个“希望”： wish一个“渴望”： desire一个“宁愿”： would rather一个“坚持”： insist注意：这12及物动词所衍生出的名词或形容词所引导的同位语从句、表语从句或主语从句中也要用虚拟语气。下面的几个句式中

6、也要用虚拟语气：It is requested/suggested/proposed/+that从句（从句中要用虚拟语气）It is important/necessary/natural/strange/ a pity + that从句（从句中要用虚拟语气）It is ( high/about)time + that从句，从句中的动词要用were/did的虚拟形式。If only + 从句，从句中也要用虚拟语气。情态动词和虚拟语气1. I often see lights in that empty house. Do you think I _ report it to the polic

7、e? A. should B. may C. will D. can2. - The room is so dirty. _we clean it? - OK. A. Will B. Shall C. Would D. Can3. - Dare your little daughter stay at home alone at night? - _ A. Yes, she does B. No, she dare not C. No, she doesnt D. Yes, she dares to4. It is suggested that a doctor _ immediately.

8、A. be sent for B. send for C. is send for D. should send for5. When he was there, he _ go to that coffee shop at the corner after work every day. A. would B. should C. had better D. might6. There is no light on; they _ be at home. A. cant B. mustnt C. neednt D. shouldnt7. - Mr. Smith, _ he have all

9、these papers typed for you right away? - He _. They should be ready by 10 oclock this morning. A. will; must B. shall; has to C. need; will D. would; ought to8. Research findings show we spend about two hours dreaming every night, no matter what we _ during the day. A. may have done B. can have done

10、 C. must have done D. should have done9. - Dont press the button, John. - What if I _ A. did B. would C. will D. shall10. Their basketball team has lots of excellent players, so if there is no unexpected thing to happen, their team _ win the championship. A. would B. may C. should D. need11. Jenny _

11、 her word. I wonder why she changed her mind. A. must have kept B. can have kept C. should have kept D. would have kept12. My mother stared at me as if she _ me before. A. didnt see B. hasnt seen C. hadnt seen D. doesnt see13. Peter _ come with us tonight, but he isnt sure. A. must B. may C. can D.

12、will14. - Could I use your computer while you are out? - Of course you _ A. could B. should C. must D. can15. Ive changed to take the job and I _ change my mind. A. mustnt B. cant C. wont D. may not16. - Is John coming by bus? - He should, but he _ not. He likes riding his bike. A. must B. can C. ne

13、ed D. may17. - I heard they went skating in the mountains last winter. - It _ be true because there was little snow there. A. may not B. wont C. couldnt D. mustnt18. I was really anxious about you. You _ home without a word. A. mustnt leave B. shouldnt have left C. couldnt have left D. neednt leave1

14、9. - Mary, how did your Math test go? - I had thought I _, but in fact I came in the top 10 in my class. A. should have failed B. could have failed C. might have failed D. need have failed20. I wonder how he _ that to the teacher. A. dare to say B. dare saying C. not dare say D. dared say21. Its hig

15、h time that he settled down in the city and _ a new life. A. start B. started C. to start D. starting22. How I wish I _ to learn Japanese when I was ten. A. would begin B. began C. should begin D. had begun23. - _ he have been chosen as captain of our school football team? - Yes, he _. Cant you see

16、hes wearing an armband? A. Can; cant B. Must; must have C. Can; must have D. Must; must24. - Isnt that Anns mother over there? - No, it _ be her. Im sure she is taller. A. cant B. must not C. wont D. may not25. - No wonder you caught a cold. You _ out last night without a coat. - I know how silly I

17、was. A. shouldnt have gone B. mustnt have gone C. couldnt have gone D. mightnt have gone26. But for your timely help, the boy _ his life. A. must have lost B. may lose C. might have lost D. should lose27. What would you say if I _ you the truth? A. am going to tell B. were to tell C. have told D. would tell28. - You really shouldnt have shouted to them. - Right. I _ crazy then. A. must be B. must have been C. would have been D. should have been29. If I _ you, I _ a plane instead of a bus. Its too far. A. were; would h