情态动词和倒装

情态动词完成时的用法（ have + done)
3. could+have done用于过去的事情，和can +have +V.ed 一样，但是更含蓄。
e.g. Where could she have gone?
情态动词完成时的用法（ have + V.ed)
4. may + have +done 表示说话人对过去发生的事情有 所怀疑或轻度有把握的事情的推测。
e.g. --Where is Tom? ----He may have gone to the skating ring. I am not sure.
情态动词完成时的用法（ have + V.ed)
5. might + have + done 表示对过去事情可能性的推测， 所推测的可能性与实际情况相反，往往含有批评之意。
e.g. You might have finished the work earlier.
情态动词完成时的用法（ have + V.ed)
6. need+ have+done 表示现在对过去某事是否必要的看 法。常含有责备的意味。常用在否定句中。
e.g. You needn’t have kept me waiting all the time.
7. Since she is angry,we __C____ her alone.
A) Had better to leave
B) had rather to
C) might as well leave
D) should as well leave
8.the classroom is empty. I think they__D__to the library.
1. Mary's score on the test is the highest in her class;
she __C__ have studied very hard.
A) may B) should C) must D) ought to
2.You _D____ her in here office last Friday; she's been
B) used to be
C) formerly were
D) had been
情态动词完成时的用法（ have + done)
6. You _D____ read that article if you don’t want to.
A) haven’t
B) can’t C) mustn’t
D) needn’t
e.g. You ought to /should been here five minutes ago.
e.g. You shouldn’t/ ought not to have allowed the child to go alone.
情态动词完成时的用法（ have + done) 情态动词 + 动词完成进行时have been doing
A) Should be studying B) should studying
C) ought to be studied
D) ought to studying
5. She is studying medical science now but she__B____
a lawyer.
A) would be
You needn’t have come last night.
情态动词完成时的用法（ have + done)
7. should +have +done, ought to+ have + done 表示过去 本应该做某事而没有做
sholud+ haven’t done 表示过去不应该做某事而做了
情态动词完成时的用法（ have + V2.ed)
2. can/can’t have done 表示说话人对过去一件行为的 真实性所持的态度，态度可能是惊奇、怀疑或不相信。 e.g. Can she really have behaved so badly? (惊奇、怀疑）
Tony can’t have done that. He hasn’t the strength.
情态动词练习 倒装练习
情态动词完成时的用法（ have + done)
1. must +have done:表示对过去事情的较有把握的肯定 推测，这时只能用在肯定句中，在否定句和疑问句里， 用can’t/couldn’t 或can/could
e.g. From what you said, she must have told you all about it.
out of town for two weeks.
A) needn't have seen
B) must have seen
C) might have seen
D) can't have seen
情态动词完成时的用法（ have + done)
情态动词 + 动词完成进行时have been doing
A) should have gone
B) ought have gone
C) must go
D) must have gone
情态动词完成时的用法（ have + done) 情态动词 + 动词完成进行时have been doing
9. Are you daydreaming, John? You _y_o_u_s_h_o_u_l_d_b_e
(should, listen) You _n_e_ed__n_’t__co_m__e__ (needn’t, come ) all the way to meet me. I know this place pretty well.
3. The room is in terrible mess; it ____A_____ cleaned.
A) can't have been B) shouldn't have been C) mustn't have been D) wouldn't have been
4. John is playing soccer, but he _A___.