高中英语语法——情态动词，虚拟语气word版 附答案

情态动词、虚拟语气 情态动词的考点： 一、表能力的情态动词 二、表可能性推测的情态动词 三、表请求许可的情态动词 四、情态动词+have done 的用法 五、情态动词表示各种语气 六、情态动词表虚拟以及其他的用法 一、表能力的情态动词：can,could,be able to ,could have done（过去本能），be able to 能用于各种时态。 can / could 只能表示现在或过去的能力。 was / were able to : “通过努力而设法做成某事”相当于managed to do sth/succeeded in doing sth。 1. A computer ______ think for itself; it must be told what to do. A. can’t B. couldn’t C. may not D. might not 2. The fire spread through the hotel very quickly but everyone ______ get out. A. had to B. would C. could D. was 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. That big cinema ______ seat 2,000 people. A. can B. should C. ought to D. is able to 二、表请求许可的情态动词： 1、表示许可或请求许可: may / might, can / could 其句型为： Shall/May/Might/Can/Could I...?或Will/Would/Can/Could you…? 2、could/would/should/ might比较委婉, 一般多用于疑问句. 3、在以could, might 表示征询对方