第 6 讲 情态动词与虚拟语气1. — No one ______ be compared with Yao Ming in playing basketball. — Oh, you are really his big fan. (2011·湖南卷 28) A. can B. need C. must D. might【解析】选 A。can 强调能力，是“能，会”的意思。句意：在打篮球方面没有人能与姚明相比。你真是他的铁杆粉丝。 2. — I don't really like James. Why did you invite him? — Don't worry. He ______ come. He said he wasn't certain what his plans were. (2011·北京卷 24) A. must not B. need not C. would not D. might not【解析】选 D。根据句意，James 可能不会来的。因为他自己不确信他的计划是什么。might not 表可能性，“可能不”。 情态动词考点 1. could 与 was/were able to 的区别Although the fire in the hotel was very big, they ______ escape from it.A. can B. couldC. was able to D. were able to【解析】选 D。A 的时态不对， C 选项主谓不一致。could 和 was / were able to 虽都表过去的能力，但后者还表达“付诸了行动”的意思。 could 一般只表过去的能力；若表示过去的能力得到了实施，一般用 was / were able to, 不用 could。 考点 2.表示“可能性”的 can, may, mustLiza______well not want to go on the trip — she hates traveling.A. will B. canC. must D. may【解析】选 D。句意： Liza 极有可能不想去旅行——她讨厌旅行。may well not 很可能不，表示否定猜测。 例 2：It ______ be the postman at the door. It's only six o'clock. (2011·江西卷23) A. mustn't B. can't C. won't D. needn't【解析】选 B。 can't 表“不可能”，否定推测。根据前后句意思只能用 can't。needn't“不必要”；mustn't 表“禁止，不许”，won't 表将来。 肯定推测一般用 must, should, may/might 或 could(一般不用 can), 其中， must 的语气最强，意为“肯定”， should 次之，意为“很可能，应该”， may/might 语气最弱，意为“也许”。否定推测语气不很肯定时常用 may/might not 或 could not, 意为“可能不，也许不”；否定语气较强时则用 can't, 意为“根本不可能，想必不会”；用于疑问句...
