人教版英语七年级下册Unit1_情态动词can用法专练

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Unitl情态动词can用法专练

一、单项选择

1. — Can you come and play basketball with us? — _____ . I have a lot of homework to do. A. Sure B. Yes, I do

C. No, I don

can 't

2. My bike is broke n today, and I ___ go to school on foot. A. have to

B. must

C. n eed

3. Excuse me. Could you read the story aloud, please? I _ A. can 't

B. must n 't C. have to

4. — You ___ watch TV here. The baby is sleep ing now. —I ' m sorry. I ' ll go to the next room, A. can

B. can f

C. must

5. — __ you come to my birthday party this weeke nd? —I ' m afraid I ______ . I have to look after my sister. A. Can; can

B. Must; must C. Must; must n

t D. I ' m sorry, I

D. has to hear you.

D. n eedn' t

D. have to

't D. Can; can 't

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参考答案及解析

1. D 由答语后句I have a lot of homework to do我有许多作业要做。）可知此处应 作否定回答，排除A、B两项；Can you come….?为提出邀请的句式，否定回答常 用I ' m sorry, I can ' t.+表示理由的句子。 2. A 自行车坏了是客观因素，故用 have to。 3. A 由题意可知“我不能听见”，故应用 can ' t 。 4. B 由下文可知应是“你不能在这里看电视” ，故选 B。

5. D 句意：“你这周末可以参加我的生日聚会吗？” “我恐怕不能。我得照看我 妹妹。”根据句意可知，问句表示请求，应该用can；由“ I have to look after my sister. 可知，应为否定回答，故选 D。 must意为“必须；一定”。