内容正文:
2023-2024学年七年级英语下册单元模块满分必刷题(人教版)
Unit 1 Can you play the guitar【刷语法】(重点语法提升练)
情态动词can
1、结构:can + 动词原形,没有人称和数的变化。
2、否定形式:cannot/can’ t, cannot比缩略形式can’ t要正式。口语中一般用缩略形式。
例如:I can swim.
Daming can ride a bike. He can’t drive a car.
二、用法
1、 表示能力(体力、知识、技能等),此时可用be able to代替。
例如:Mary can speak three languages. 玛丽会说三种语言。
= Mary is able to speak three languages.
注意:(1)can只有一般现在时和一般过去式;而be able to则有更多的时态。
例如:I’ll not be able to come this afternoon. 今天下午我将会来。
(2)当表示“经过努力才得以做成功某事”时应用be able to,不能用can。
例如:He was able to go to the party yesterday evening in spite of the heavy rain. 尽管很大雨,他昨天能来参加聚会。
2、表示请求和允许。
例如:---Can I go now?
--- Yes, you can. / No, you cannot/can’t.
此时可与may互换。在疑问句中还可用could,might(不可用于肯定句、否定句或答语)代替,不是过去式,只是语气更委婉。
例如:--- Could I come to see you tomorrow?
--- Yes, you can. ( No, I’m afraid not. )
3、表示可能性猜测。
例如:The man over there can′t be my uncle. My uncle has gone to Beijing. 那个人不可能是我的叔叔。我的叔叔去北京了。
一、单项选择
1.—What are these?
—______ are seven ______.
A.They; boxes B.They; box C.These; boxs
2.—What is that?
—________ is a book.
A.That B.It C.This
3.—What are those?
—________ pens.
A.These are B.They are C.That is
4.—Are these blue pants yours?
—________. They are Sally’s.
A.Yes, they are B.No, these aren’t C.No, they aren’t
5.—Is that your pencil?
—Yes, ________.
A.they are B.it is C.that is
6.________ are Bob’s baseballs. Can you see them?
A.This B.Those C.That
7.—What are those?
—________are buses.
A.Those B.They C.We
8.—Hello, ________ I help you?
—Yes, please. I need a basketball.
A.Can B.Do C.Am D.Be
9.When the light is red, you _______ cross the road. You ________ wait for the green light.
A.can; must B.can; must not C.can’t; must D.can’t; must not
10.Peter can ________ very well.
A.dance B.to dance C.dancing D.dances
11.“Can you see my ruler?” “Sorry, ________.”
A.I don’t B.I’m not C.I can’t D.I can
12.—My brother is 4 years old now. But he help my parents do many things.
—Really? Great boy!
A.can B.need C