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必修 第三册Further Exploration一等奖课件ppt
展开①may/might have dne可能已经发生了某事。对过去所发生动作的不太肯定的推测。用于肯定句中,may和might意思相同,但might可能性更小,多用于虚拟语气中。Yu can check his ffice. He might have been there already. 你可以去他的办公室看看。他可能已经到那儿了。
②can/culd have dne本能够做某事,can have dne用于疑问句,表示对过去所发生事情的怀疑。culd have dne用于虚拟语气,表示对过去事情的假设,本来能够做某事但没有做。There was n ne in the huse. Where can he have gne? 房子里一个人也没有。他会去哪里呢?If he had wrked harder, he culd have passed the exam. 如果他再努力一点,他就能通过考试了。(与过去事实相反的虚拟语气)
③can’t /culdn’t have dne不可能已经发生了某事,表示对过去所发生的事情的否定推测,否定语气较强。culdn’t have dne比can’t have dne语气委婉一些。He culdn't have left fr Shanghai, fr I just saw him n the street. 他不可能去上海了,因为我刚刚在街上看见他了。
④must have dne一定已经发生了某事,只用于肯定句中,表示对过去所发生的事情的最肯定的推测,与can’t /culdn’t have dne相对,表示不可能已经发生了某事。The street was wet, s it must have rained last night. 街道是湿的,所以昨晚一定下雨了。The children must have been very excited as they pened it. 孩子们打开它的时候一定很兴奋。
⑤wuld have dne本来会做某事,用于虚拟语气中,表示对过去所发生的事情的假设。I wuld have gne t Beijing yesterday, but I had smething urgent t d. 我本来昨天要去北京的,但我有急事要做。
⑥shuld/ught t have dne本应该做某事但没有做,表示对对方的指责或自责。用于肯定句和疑问句中。也可以表示可能性较小的推测。Yu shuld have arrived n time yesterday. 你昨天应该准时到达的。Yu ught t have tld me abut it earlier. 你应该早点告诉我这件事。I ught t have finished the wrk last week. 我本应该上周就完成这项工作的。The new teaching building shuld have been cmpleted by the end f this term. 新教学楼应在本学期末完工。
⑦shuldn’t/ughtn’t t have dne本不应该做某事但实际做了,表示对对方的指责或自责。Yu shuldn’t have watched the ftball s late last night. 昨天晚上你不应该看足球赛看得那么晚。Yu ughtn’t t have blamed him t much. 你不应该过分责备他。
⑧nneedn’t have dne 表示本不需要做某事但做了。Yu needn’t have cme s early, fr the meeting has been pstpned fr tw hurs. 你没必要来这么早,因为会议已经推迟了两个小时。
1.---Yu didn’t wait fr Mr. Smith last night, did yu? ---Actually,we ______. He didn’t return hme at all.A. culdn’t have waited B. needn’t have waitedC. didn’t need t wait D. shuld wait2.Harry ______ have wn the Physics cmpetitin easily yesterday, but he gave up.A. culd B. might C. shuld D. must
3.---May I speak t yur manager Mr. Smith at six ’clck tnight ?” ---“I’m srry, Mr. Smith t a cnference befre then.”A. will have gne B. had gne C. wuld have gne D. has gne4.---Tm tk away ur teacher’s cell phne withut being permitted.--- Really? I can’t imagine that he _______ have dne such a thing.A. must B. may C. can D. shuld
5.--- Was it yu that made the suggestin?--- It have been. I can’t remember.A. need B. must C. shuld D. may6.The weather turned ut t be fine yesterday. I_________ the truble t carry my umbrella with me .A. shuld have taken B. culd have takenC. needn't have taken D. mustn't have taken
7.He paid fr a seat, when he ______ have entered free.A. culd B. wuld C. must D. need8.I didn’t see her in the meeting rm this mrning. She at the meeting .A. mustn’t have spken B. mightn’t have spkenC. can’t have spken D. shuldn’t have spken
9.--- Hi, is that Peter Brwn?---Srry. Yu ______ the wrng number .A. must call B. must have called C. shuld call D. shuld have called10.I was n the highway when this car went past fllwed by a plice car . They ______ at least 150 kilmeters an hur .A. shuld have been ding B. must have been dingC. culd have dne D. wuld have dne
11. He is nt pr. Yu ____ have lent him the mney.A. can’t B. needn’t C. culdn’t D. mustn’t12. There was plenty f time. Yu ___ have hurried.A. wn’t B. mustn’t C. needn’t D. culdn’t13. They ____ have finished the wrk yesterday, but it was raining hard.A. must B. culd C. shuld D. might
14. I ____ here in time, but I met an ld friend f mine. I stpped and talked with him fr sme time.A. shuldn’t have cme B. must have cmeC. needn’t have cme D. culd have cme15. I didn’t hear the phne. I ____ asleep. A. must be B. must have been C. shuld be D. shuld have been
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