江苏省怀仁中学高一英语 情态动词 教师版二、情态动词分类:表示能力：can, could, be able to表示职责：ought to, should, have to, must表示推测：might, may, could, can, should, ought to, must表示许可：can, could, may, might表意志：shall, will其它：dare, need1. 表示能力的情态动词:can, could, be able to1)be able to 能用于各种时态,而且能和其他情态动词连用。can / could 只能表示现在或过去的能力。2)can 客观上能够；而 be able to 更侧重于“克服一定困难”“经过一定努力”“有能力”干某事,相当于 manage to do sth. /succeed in doing sth.。但在否定句中两者没区别。如：Though he had tried his best, he couldn’t /wasn’t able to finish the task on time. My brother can/is able to play table tennis well.(1) LiMing might ___________ win the chess game.( can/ be able to ) (2) That big cinema ______ seat 2,000 people. A . can B. should C. ought to D. is able to(3). They will ______ run this machine on their own in three months. A. can B. could C. may D . be able to (4). The fire spread through the hotel very quickly but everyone ______ get out.用心 爱心 专心1 A. had to B. would C. could D. was able to (5). ----Will you stay for lunch? ----Sorry, _____. My brother is coming to see me. A. I mustn’t B. I can’t C. I needn’t D. I won’t2. 表示职责的情态动词：should/ought to, have to, must 语气依次增强should，ought to 两者可互换，只是 ought to 的语气更重，较多地反映客观。1). must “必须”，侧重说话人的主观看法2). have to (有多种时态）侧重于客观上的需要，含有“不得不”的意思＝have got to3).must 提问时，否定回答是 need not/needn’t 或 do/does/did not have to(不必) 注意：mustn’t 不应该，不许，禁止 don’t have to＝needn’t 不必如:---- Must I hand in my exercises now?---- Yes, you must. (No, you needn’t.／ No, you don’t have to.)(1). ----May I pick a flower in the...
