第 9 讲 情态动词与虚拟语气

1. — How's your new babysitter?

— We ______ask for a better one. All our kids love her so much. (2011浙江卷)

A. should B. might

C. mustn't D. couldn't

【答案及解析】1. D 考查情态动词的用法。句意为“——你的新保姆怎么样？”“——找不到更好的了。我们的孩子们都很喜欢她。”should应该；might可能，可以；mustn't禁止；couldn't不可能。

2. Had I known about this computer program, a huge amount of time and energy ______.(2010浙江卷)

A. would have been saved B. had been saved

C. will be saved D. was saved

【答案及解析】2. A 考查虚拟语气。根据句子的倒装特征判断此处是省略了if的虚拟语气，原形是：If I had known about this computer program, a huge amount of time and energy ______. 句意为：如果我早知道这个电脑程序，就可以节省大量的时间和精力了。

3. “You ______ have a wrong number，” she said. “There's no one of that name here.”(2010浙江卷)

A. need B. can

C. must D. would

【答案及解析】3. C 考查情态动词。情态动词如果表示非常肯定的推测要用must。句意为：“你肯定打错电话了，”她说，“我们这里没有一个叫那个名字的人。”

4. The doctor recommended that you ______ swim after eating a large meal.(2009浙江卷)

A. wouldn't B. couldn't

C. needn't D. shouldn't

【答案及解析】4. D 考查虚拟语气。根据句子中的recommended(推荐)可知，从句应用“should ＋ 动词原形” 表示虚拟，且此句为否定句。

情态动词

情态动词的基本用法

1. 情态动词不能独立作谓语，其后接动词原形。