2019学年度北师大版选修七Unit21Lesson3学案设计

　　[夯实·基础知识]

　　Ⅰ. 用适当的情态动词填空

　　1. You have worked hard all day. You ________ be tired.

　　答案：must

　　2. -Could I have the television on?

　　-Yes, you ________./No, you ________.

　　答案：can; can't

　　3. If that is the case, we ________ as well try.

　　答案：may/might

　　4. -Why didn't you answer my phone call?

　　-Well, I ________ have been sleeping, so I didn't hear it.

　　答案：must

　　5. I dressed very warmly for the trip, but I ________ have done so. The weather was hot.

　　答案：needn't

　　6. Mike ________ have found his car, for he came to work by bus this morning.

　　答案：can't

　　7. Candidates ________ remain in their seats until all the papers have been collected.

　　答案：shall

　　8. I ________ rather they didn't hear of the news.

　　答案：would

9. People ________ die without air or water.