Grammar Modal verbs课件.ppt

3.–What____ it be? --It______ be a mail box, for it is moving. It______ be a car. A. can; can`t; must B. can; can; must C. can; mustn`t; must D. must; mustn`t; can B 4. –Look, someone is coming. Guess__________ . --Jack. He`s always on time. A. who can it be B. who he may C. who he can be D. who it can be ? ? 5. –I saw Mary in the library yesterday.--You_____ her. She is still abroad.A. mustn`t see B. can`t have seen C. mustn`t have seen D. couldn`t see 6. David, you _____play with the valuable bottle, you_______ break it.A. won`t; can`t B. mustn`t; mayC. shouldn`t; must D. can`t; shouldn`t 　  ? ? 反义疑问句 　在反意疑问句中，当附属部分含有表示推测意义的must, can’t时，疑问部分的助动词应与must ,can’t后面的动词在非推测情况下的用法保持一致。  1. He must be a worker, ? 2. It must have rained last night, ? 3. You must have learned English for many years, ? 4. He can`t be a teacher, ? 5. She can`t have finished her homework, ?  didn`t it haven`t you isn`t he is he has she 1. A computer ______ think for itself; it must be told what to do. A. can’t B. couldn’t C. may not D. might not 2. The fire spread through the hotel very quickly but everyone ______ get out. A. had to B. would C. could D. was able to A D 3. Shall I give you a ride as you live so far away? Thank you._____ A. It couldn’t be better B. Of course you can C. If you like D. It’s up to you 4. You might just as well tell the manufacturer that male customers ______ not like the design of the furniture A. must B. shall C. may D. need A C 5.--May I smoke here? --If you_____, choose a seat in the smoking section. Should B. could C. may D. must 6.How___ you say that you really understand the