第五单元课后习题讲解.ppt

8. He was a good runner so he catch the bus. could B. was able to C. succeed in D. might (could 表示具有做某事的能力，不表示行动行为；was able to 是表示过去成功地做了某事；succeed in doing 表示成功做成某事；might表示可能) B 9.She is the only one that that to his face. dares say B. dare say C. dare to say D. dares saying dare为实义动词时，其后的动词不定式可带to也可不带to,且dare有人称，数及时态的变化;dare用作情态动词时，其后跟动词原形，主要用于疑问句、否定句和条件句中，其否定形式dare not to A 10.Look what you have done！You more careful. should have been B. should be had to be D. must be should have done表示本应该做事实上没做，用于已经发生的事情，由题可知，事情已经发生了，“你本应该更加小心”，所以选A A III. Rewrite the sentences below using the words and phrases from the box. must may can’t could will must have may have can’t have could have should 1.I’m certain he hasn’t told us everything.2.There’s no doubt that something went wrong. . He can’t have told us everything.. Something must have gone wrong 3.I just don’t believe she’s only thirty years old.4.Perhaps they don’t know yet. She can’t be only thirty years old. They may not know yet. 5.It’s possible that the road was closed.6.The police are bound to know that. The road could/may have been closed. The police must know that. 7.Perhaps there was a traffic jam.8.There’s some chance that the letter will arrive today. There may/could have been a traffic jam. The letter could/may arrive today. 9.The phone’s ringing! I’m sure that’s my mother wondering where I was yesterday.10.There will probably be time to do some shopping. The phone’s ringing! That will/must be my mother wondering where I was yesterday. There should be time to do some shopping. 1.When you are in doubt, tell the truth. It will confound your enemies and astound your friends.2.When it is heated, metal expands. When in doubt, tell the truth. It will confound your enemies and astound your friends. When heated, metal expands. Ⅳ. Rewrite the following sentences, using verbless clauses. 3