高中英语语法精讲之情态动词4.pptVIP

表示推测——情态动词的重要用法. 1. You must be Mr Smith----I was told to expect you here. 2. He must have known what we wanted. 3. We may have read the same report. 4. He can’t have slept through all that noise. 5. There’s someone outside----who can it be? 6. What can they be doing? 7. These pills might help to cure your disease. 8. You could be right, I suppose. Exercises 1. A left—luggage office is a place where bags ____be left for a short time, especially at a railway station. A. should B. can C. must D. will 2. How ___ you say that you really understand the whole story if you have covered only part of the article? A. can B. must C. need D. may 3. --- The room is so dirty._____ we clean it? --- Of course. A. Will B. Shall C. Would D. Do √ * 情态动词 modal verbs 表示推测——情态动词的重要用法. 肯定的推测 可能的推测 否定的推测 疑问的推测 must 对将来 对现在 对过去 情态动词 may, might can’t, couldn’t can, could + V. + V. + have done 常见must be + be doing + V. + V. + have done + be doing 可以用not表示“可能不” +V. + V. + have done + be doing + V. + V. + have done + be doing 1. I dont know where she is, she _______ be in Wuhan. 2. At this moment, our teacher ________________ our exam papers. 这时，我们老师想必在批改试卷。 3. The road is wet. It ________________ last night. (rain) 4. Your mother ______________________ for you. 　你妈妈一定一直在找你。 may must be marking must have rained must have been looking 5. Philip ________________________ seriously in the car accident. 菲利普可能在车祸中受了重伤. 6. ---Linda has gone to work, but her bicycle is still here. 　---She _____________________ (go) by bus. 7.