人教版七年级英语上册期中复习要点

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be动词

◆ 英语中be动词有三个：am，is，are。

◆ 使用原则：

“I”用“am”，“you”用“are”，

“is”连着“他（he），她（she），它（it）”

单数名词用“is”，复数名词全用“are”。

◆ eg

1.I am an English teacher.

2.Are you Jack?

3.He is my uncle.

4.She is his aunt.

5.It is my dog.

6.The key is mine.

7.The books are on the desk.

冠词

◆ 分类：不定冠词a，an

定冠词 the

◆ eg

1. I have a pencil.

2.She has an English book.

3.I have a pencil. The pencil is yellow.

4.What color is the key?

◆ 冠词用法口诀:

名词是秃子,需要戴帽子;

可数名词单,须用a和an;

辅音前用a, 元音前用an;

若为特指前,则须用定冠;

碰到代词时,冠词均不见。

人称代词

◆ 用法口诀：

人称代词主宾格，主格动词前做主，动词介词后宾格。

◆ eg

1.I am an English teacher.

2.She is my friend.

3.He is her brother

4.They are my grandparents.

5.It is a blue jacket.

6.Can you help me?

7.Spell it, please.

8.We are good friends.

9.Thank you for your help.

10.I lost my pens, I must find them.

物主代词

◆ 用法口诀：有名则形，无名则名。

可数名词的复数

◆ 当所表达的名词超过一个时，可数名词需用复数形式。

◆ 可数名词复数的变化规则：

1.名词复数有规律，一般词尾加s book-books pen-pens

2.辅音字母+y型，变y为i, es family-families

3.ch,sh真有趣,s,x,es box-boxes watch-watches

4.f,fe真小气，字母v来把它替,es在后别忘记 life-lives

5.字母o来真神奇，有生命来es,没有生命+s

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