must, can, may+動詞的進(jìn)行式，表示對進(jìn)行中的事進(jìn)行推測。例如：
1)They must be waiting anxiously now. 他們此刻一定在焦急地等待著。
2)Can they be working in the field now? 他們現(xiàn)在可能在地里勞動嗎?
八 He must be tired now, ___________?
1) He must have been tired last night after a day’s work, ____________?
2) He must have been to Hong Kong,___________?
keys: 1. isn’t he 2. wasn’t he 3. hasn’t he
Practice:
1. Sorry, I’m late. I ____________ have turned off the alarm clock and gone to sleep again.
A. might B. should C. can D. will
2. --- He didn’t pass his English exam.
--- So he ________ a good time during the Spring outing yesterday.
A. can’t have B. shouldn’t have C. mustn’t have had D. couldn’t have had
3. It’s nearly seven o’clock. Jack ________ be here at any moment.
A. must B. need C. should D. can
4. You can’t imagine that a well-behaved gentleman _______ be so rude to a lady.
A. might B. need C. should D. would
5. The boy must be in the classroom, _______ he?
A. mustn’t B. doesn’t C. hasn’t D. isn’t
6. --- Could I borrow your dictionary?
--- Yes, of course you ________.
A. might B. will C. can D. could
7. We wonder why Jim Green ______ say such things.
A. dared not to B. doesn’t dare to C. dares not to D. not dares
8. I talked a long time, and in the end I _____ make him believe me.
A. could B. was able to C. may D. might
Keys: ADCC(should表驚訝) DCBB
1)They must be waiting anxiously now. 他們此刻一定在焦急地等待著。
2)Can they be working in the field now? 他們現(xiàn)在可能在地里勞動嗎?
八 He must be tired now, ___________?
1) He must have been tired last night after a day’s work, ____________?
2) He must have been to Hong Kong,___________?
keys: 1. isn’t he 2. wasn’t he 3. hasn’t he
Practice:
1. Sorry, I’m late. I ____________ have turned off the alarm clock and gone to sleep again.
A. might B. should C. can D. will
2. --- He didn’t pass his English exam.
--- So he ________ a good time during the Spring outing yesterday.
A. can’t have B. shouldn’t have C. mustn’t have had D. couldn’t have had
3. It’s nearly seven o’clock. Jack ________ be here at any moment.
A. must B. need C. should D. can
4. You can’t imagine that a well-behaved gentleman _______ be so rude to a lady.
A. might B. need C. should D. would
5. The boy must be in the classroom, _______ he?
A. mustn’t B. doesn’t C. hasn’t D. isn’t
6. --- Could I borrow your dictionary?
--- Yes, of course you ________.
A. might B. will C. can D. could
7. We wonder why Jim Green ______ say such things.
A. dared not to B. doesn’t dare to C. dares not to D. not dares
8. I talked a long time, and in the end I _____ make him believe me.
A. could B. was able to C. may D. might
Keys: ADCC(should表驚訝) DCBB