内容正文:
中考英语语法总复习 述
专题15 情态动词
目录
命题点一 can/could用法 1
命题点二 may/might用法 4
命题点三 must/have to用法 5
命题点四 will/would用法 8
命题点五 其他:should/need/had better用法 10
命题点一 can/could用法
►重点用法概括
can/could
表示能力,意为"能,会"
I can read this sentence in English. 我能用英语读这句话。
表示许可时,意为"可以,能够",相当于may
She said that I could use her computer. 她说我可以使用她的电脑。
用于推测,表示可能性,意为"可能"
The man can’t be our teacher — he has gone to Beijing. 那个男人不可能是我们老师,他去北京了。
There is someone outside — who can it be? 有人在外面,可能是谁呢?
【二者差别】
1. 情态动词“can”的过去式是“could”,过去式中用could。
2.can/could表示许可时,could比can更委婉,更礼貌。
3.表推测时:could比can更加不肯定。
►易错点解读
Could引导的一般疑问句,回答时可用could,也可用can。
区别:过去式必须用could,其他情况,比较肯定时用can,不太肯定时用could。
-Robert, could you wash the car for me? -Yes, I can. I’m coming, dad.
精选例题
【例1】.(2021·内蒙古包头·中考真题)—Hi, Carl! I’m leaving for Chengdu this weekend. —Cool! But I ________ get away until the end of July.
A.shouldn’t B.can’t C.needn’t D.mustn’t
【例2】.(2020·湖北黄石·中考真题)—Mom, ________I watch TV tonight? —Sure, but you ________finish your homework first.
A.can, mustn't B.may; could C.may; can't D.can; must
【例3】.(2021·湖北黄石·中考真题)—I wonder if this glass is Tom’s. —It ________ be his. His was broken just now.
A.mustn’t B.may not C.can’t D.shouldn’t
【例4】.(2021·新疆·模拟预测)--- Robert, could you wash the car for me? --- Yes, I _______. I’m coming, dad.
A.could B.couldn’t C.can D.can’t
【例5】.(2021·北京平谷·一模)—________ you help me with my spoken English? —No problem.
A.Should B.Could C.Must D.Need
随堂练习
1.(2021·江苏常州·中考真题)—Could you play the piano at the age of five? —No, I ________. I started at six.
A.can’t B.shouldn’t C.needn’t D.couldn’t
2.(2021·江苏连云港·中考真题)What an amazing robot! It ________ cook more than 5, 000 dishes.
A.shall B.need C.must D.can
3.(2020·辽宁鞍山·中考真题)—Excuse me, are the glasses Mike’s? —No, they __________ be Mike’s. He doesn’t wear glasses.
A.needn’t B.can’t C.shouldn’t D.mustn’t
4.(2021·内蒙古包头·中考真题)—Hi, Carl! I’m leaving for Chengdu this wee