
一.be动词的形式
在一般现在时态中,be动词有三种形式:am, is 和are.
二.be 动词的用法
Be动词的形式取决于主语。
(1)am 用于主语I之后
例:I am a student.我是一名学生。
(2)is用于主语是第三人称单数或不可数名词等的情况。
例:She is a teacher. 她是一位老师。
Water is very important for us.水对我们来说很重要。
(3)are 用于主语是复数及第二人称you等的情况。
例: You are a good student.你是一名好学生。
We are very happy.我们很高兴。
The keys are on the desk.钥匙在桌子上。
(4)be 动词的缩写
I am=I’m; he/she/it is=he’s/she’s/it’s
we/you/they are=we’re/you’re/they’re
is not=isn’t are not=aren’t
who is=who’s who are=who’re what is=what’s
三.Be动词在一般现在时态中的各种句型
(1)肯定句:主语+be+其他。
He is watching TV. 他正在看电视。
(2)否定句:主语+be+not+其他。
He isn’t(is not) Mike. 他不是麦克。
(3)一般疑问句: Be+主语+其他?
Are you a student? 你是一名学生吗?
(4)特殊疑问句:疑问词+be+主语+其他?
What’s your name?你叫什么名字?
Where is my book?我的书在哪里?
四.be 动词记忆口诀
我(I)用am,你(you)用are,
is 连着他(he)、她(she)、它(it),
单数用is,复数就用are。
五.语法专练
用适当的be动词填空
1. I a teacher.
2. She a dancer.
3. They my good friends.
4. Mike watching a football match.
5. My father and my mother cleaning the house.
6. John and I doing our homework.
7. your parents at home?
8. The books on the desk mine.
9. Her name Sarah.
10. How old your sister?
11. who the old man?
12. There an apple, two bananas on the plate.
13. That her pen.
14. The set of keys on the bookcase.
15. Some tea in the cup.
16. Two cups of tea on the table.
17. Here two books for you.
18. There any juice in the bottle?
19. Tom with his mother in the park.
20. Playing sports good for our health.
