情态动词专练

1、情态动词专练对某一次的推测句型有两部分：语气和时态语气部分：（以下情态动词语气由强至弱）肯定句：must、may、might（=could）否定句：cant（=couldnt）、maynt、mightnt 疑问句：can、could（语气更加委婉不确定）时态部分：be表示对现在的推测have done表示对过去的推测be doing表示对正在进行的推测语气部分写在前时态部分写在后，组合在一起就是推测“情态动词完成时”是历年高考的热点，在做此类练习时，既需要掌握这一结构的基本用法，又应该仔细体会题干所提供的语言信息，准确理解语言环境和说话人的含义，尤其要注意题干中时态给予的暗示。should （

2、ought to ）have done 指本该做而实际未做的事，意为“本来应该”。其否定式shouldn”t（oughtn”t）have done 则表示某种行为不该发生但却发生了.You should have started earlier , but you didn”t. 你本应该早一点出发，但是你没有。could have done 还可以用于肯定句，常用来表示本来可能完成而实际未完成的动作。We could have walked to the station , it was so near . 我们本来是可以走到车站去的，路很近。needn”t have done 指实际上做了

3、本来不必要做的事，意为“本来不必”。There was plenty of time . She needn”t have hurried. 时间很充裕，她本不必匆忙1) You_ all those clothes! We have a washing machine to do that sort of thingA) neednt have washed B) shouldnt have washed C) must not have washedD) can not have washed2) Johns score on the test is the highest in the

4、class; he_ last night.A) should study B) should have studiedC) must have studied D) must have to study3) The room is in a terrible mess; it _cleaned. (CET-4, 1996,6)A) cant have been B) shouldnt have beenC) mustnt have been D) wouldnt have been4) Nobody knows how people first came to these islands.

5、They _ from South America on rafts.A) must have sailed B) can sailC) might have sailed D) should have sailed5) Mary was not in her bedroom yesterday afternoon. She _ in her classroom.A) should have beenB) must have beenC) must be D) should be6) Bob said he was going to join our club but he didnt. He

6、 _ his mind.A) cant have changedB) wouldnt have changedC) must have changedD) shouldnt have changed7) You_ to town to see the film yesterday. It will be on TV tonight.A) neednt go B) had better not goC) should not goD) neednt have gone8) We_ the letter yesterday, but it didnt arrive.A) must receive

7、B) ought to receiveC) must have receivedD) ought to have received9) With all the work on hand, he_ to the cinema last night.A) mustnt go B) shouldnt have gone C) could not goD) couldnt have gone10) Eve was late for class again. She _earlier.A) should get up B) must get upC) need to get upD) should h

8、ave got up11) I am feeling sick. I_ so much chocolate.A) neednt have eaten B) couldnt have eaten C) mustnt have eaten D) shouldnt have eaten12) I didnt send out my application form last week, but I _.A) had B) would doC) should have D) might have to13) Walking alone in the deserted village, John was

9、 scared. He thought he_ Tom to go with him.A) might have askedB) should askedC) must have asked D) should have asked14) When I got to the cinema, the film had already started; I_ there earlier.A) ought to get B) ought to have gotC) must have gotD) must get15) The road was muddy. It_ last night.A) mu

10、st rained B) must have rained17) You should bear in mind that he is not so strong as he_.A) was used to beB) used to beC) was used toD) use to18)“We didnt see him at the exhibition yesterday.”“He _it.”A) mustnt visit B) cant have visitedC) should have gone to seeD) may see 19) Mary _my letter, other

11、wise she would have replied before now.A) should have received B) has receivedC) Couldnt have receivedD) ought to have received20) I _ you a valuable present for your birthday, but I was short of money.A) would have liked to giveB) liked to give C) have liked to give D) would like to give21)“Where _

12、 my umbrella?”“Somebody _ it away by mistake.”A) is, must have taken B) is, must takeC) have been, must takeD) is, takes22) What _ would happen if the director knew you felt that way?A) will you supposeB) you supposeC) do you suppose D) you would suppose23) Two eyes _see more than one.A) canB) mayC)

13、 willD) should24) _ you continue in your efforts and achieve new and greater successes.A) WouldB) WillC) MayD) Should 25) We ought to help each other in our work, _?A) oughtnt weB) should weC) shouldnt weD) ought to we26) Tom _ better than to ask Dick for help.A) shall knowB) shouldnt know C) has kn

14、own D) should have known27) You _ your tooth pulled out before it rot completely.A) had better got B) had to get better C) had better to getD) had better get28) When we got to the cinema, the film hasnt started yet, so we _.A) neednt hurryB) didnt need hurryC) neednt to hurryD) neednt have hurried29

15、) It was really very dangerous; you _ him seriously.A) might have injured B) could injureC) should have injuredD) must injure 30) As he had heart attack, he was told that he _ continue the work.A) neednt B) may not C) mustntD) cant31) An Englishman who _not speak Italian was once traveling in Italy.

16、A) mustB) couldC) may D) might32) I _like to make a suggestion.A) could B) would C) must D) might33) I know things are hard with you, but you _try to get over the difficulties.A) can B) may C) must D) ought34 I cant find the recorder in the room. It _ by somebody.A) may have been taken away B) may l

17、eave C) may take away D) must have taken away35) He _the 9:20 train because he didnt leave home till 9:25.A) can reach B) could catchC) may not catch D) couldnt have caught36-May I stop my car here? - No, you_.A. cant B. mustnt C. neednt D. dont have to37. Must we clean the house now? No, you _.A. n

18、eednt B. may not C. mustnt D. cant38. John his father about his failure in the exam.A. dares not tell B. dares not tellingC. dare not tell D. dares not to tell39. You return the book now. You can keep it next week if you like.A. cant B. mustnt C. neednt D. may not40. Johnny, you play with the knife, you hurt yourself.A. wont.c