高考英语三轮复习考点闯关——情态动词(表推测用法).docVIP

考点闯关（十二）情态动词（表推测用法）1I _have been more than six years old when the accident happened. A. shouldn t B. couldn t C. mustn t D. needn t2. He have completed his homework ; otherwise, he wouldn t be enjoying himself on the play ground. A. should B. must C. wouldn t D. can t3.Do you know where David is? I couldnt find him anywhere. Well. He have gone far. His coats still here. A. shouldn t B. mustn t C. can t D. wouldn t4.He stayed in Africa visiting wild animals for seven days. Oh, dear ! He a lot of excitement!A. may go throughB. might go throughC. ought to have gone throughD. must have gone through5He paid for a seat, when he have entered free.A. could B. would C. must D. need6This cake is very sweet. You a lot of sugar in it. A. should put B. could have put C. might put D. must have put7These flowers are dead. I them less water. A. should have given B. will give C. would give D. must give8. You really shouldn t have shouted to your teacher. Right. I crazy then. A. must be B. must have been C. could have been D. should have been9. I was on the highway when this car past followed by a police car. They_ at least 150 km an hour. A. should have been doing B. must have been doing C. could have done D. would have done10He must have finished the work last night, _?A. didn t he B. hasnt he C. havent he D. did he 11Lucy have been to Mary s wedding. They are the best friends. But she for some reason, because Mary asked us why Lucy had missed her wedding. A. would; couldn t B. should ; can tC. must ;wasn t able to D. must ; might not12. I saw Mr. Smith at the West Beijing Station this morning. You He s still on holiday in Hawaii. A. couldn t have B. mustn t haveC. shouldn t D. needn t13.Did you walk all the way home by yourself? Yes, I did. But I guess I . A. needn t B. needn t haveC. shouldn t D. may not have14.You could have done better, but you were too careless.A. must B. could C. cant D.mustnt15. You _ have given him more help, though you were busy.A. shall B. must C. might D. will 参考答案1B 【解析】：本句意为“当那次事故发生时，我可能还没有6岁。”表示对过去情况的否定的推测，用could have done而can/could常用语否定的推测，故只有couldnt才能达意。2B 解析 他一定做完了作业，要不然他不可能在操场玩得那么开心。本题考查must对过去推测的用法，应用must have done结构表示过去一定做了某事，而should have done表示过去应该做而没做。3C 解析：根据语境，他的大衣还在，推断他不可能走远。考查情态动词的否定推测用法，只有Can t表达“不可能”。Can常用于否定句和疑问句中。4D 解析：由上句的“在非洲参观了野生动物”可知，他一定经历了许多兴奋。表示对过去情况的推测用must have done结构。5A 解析：本句意为“尽管他可以免费进入，但他还是付了座位费。”故用could have done来表示“本能够做而未做”。6D 解析：蛋糕很甜，你一定放了很多的糖。放糖的动作发生在过去，根据句意应用对过去的肯定推测用must have done的结构。7A 解析：这些花死了，我本该少浇水的。should have done表示应该做而没做，表责备、埋怨。8B解析：-你真的不应该对着你的老师大叫。-是的，当时我一定是疯了。用must have done表示对过去的肯定推测。故B正确。9B解析：我在高速路上，就在这这辆车被一辆警车追赶，他们一定开了至少150公里每小时。must have been doing表示对当时的推测。本句意为“那时的速度一定有150公里/小时”。10答案A 【解析】： 句意：昨晚他一定完成了作业，是吗？ 句子有时间状语last night，不能用hasnt he .11C解析：-露西一定参加了玛丽的婚礼，他们是好朋友。- 但是由于某种原因没去，因为玛丽问我露西为什么错过了他的婚礼。前者表示对“过去”的肯定推测，后者指“过去”没能去。12A解析：句意：你不可能见过他，他还在夏威夷。完整结构是You couldnt have seen MrSmith。表示对过去发生的动作的否定推测。13B解析：句意：-你是自己走回家的吗？-是的，但是我认为你本来不必的。 表示过去做了没有必要做的事。14. B 【解析】：本句意为你本可以做的更好的，但是你太粗心了。c