小学三年级英语Be动词总结和练习
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Be动词用法口诀
Be有am,is,are 我(I)用am 你(you)用are is连着他(he)她(she)它(it) 我们(we)你们(you)他们(they)要用are 单数名词用is 复数形式要用are 变否定真容易，be后not为标记变问句be提前，句尾问号要配全（？）应用时多注意，缩写形式要牢记。
I'm=I am you're=you are he's=he is she's=she is it's=it is
we're=we are you're=you are they're=they are ... ...
一．用Be动词的适当形式填空
1. I ______ a boy. ______ you a boy? No, I _____ not.
2. The girl______ Jack's sister.
3. The dog _______ tall and fat.
4. ______ your brother in the classroom?
5. Where _____ your mother? She ______ at home.
6. How _______ your father?
7. Mike and Liu Tao ______ at school.
8. Whose dress ______ this?
9. Whose socks ______ they?
10. That ______ my red skirt.
11. Who ______ I?
12.The jeans ______ on the desk.
13. There ______ a scarf for you.
14 The two cups of milk _____ for me.
15 Gao shan's shirt _______ over there.
16My sister's name ______Nancy.
17This ______ not Wang Fang's pencil.
18 There ______ a girl in the room.
19 There ______ some apples on the tree.
20 _______ there any kites in the classroom?
21 There _______ a boy, two girls, three men and ten women in the park.
二、句型转换：
1. They Are they doing housework .(改成否定句)
_________________________________________________________ ___
2. Are the students cleaning the classroom ? (作肯定和否定回答)
____________
3. Tom is und er the tree.（变为否定句）
4. The skateboards are black.(改成否定句)
5.She is a good student.(改为一般疑问句，作否定回答) .
一、Do you …? 的用法。
如：Do you use chopsticks in England?
肯定回答：Yes, we do.
否定回答：No, we don’t.
这个句型是在询问某人是否做某事的情况下用的，在回答这类疑问句时，注意人称和肯定、否定用法就可以了。
二、现在进行时态的用法。
特殊疑问句：特殊疑问词+ be+主语+动词ing？
如：What are you doing?
陈述句：主语+be+动词ing.
Eg: What are you doing ? --- We a boat .
A.are making
B.is making
C. makes
三、Can 引导的疑问句及陈述句的用法。（第四模块、第五模块）。
Can + 主语+ do sth? (回答的时候，保持主语，肯定否定的一致)
如：Can you run fast? 肯：Yes, I can. 否：No, I can’t.
Eg: Can I have a cake ?------
A.Yes, you can.
B.No, you can.
C.Yes, I can’t.
四、将来时态be + going to 的用法。
陈述句，主语+be + going to do… . 如：I’m going to run a rac e. 我将要参加赛跑。主语+be + going to be ….如：I’m going to be a doctor. 我要成为一名医生。
一般疑问句：be +主语+ going to do…? 如：Are you going to go to Hong Kong?
肯：Yes, I am. 否：No, I’m not.
特殊疑问句：特殊疑问词+ be+主语+going to…? 如：What are you going to do ?
答：I’m going to ….
特殊疑问词：
what 什么（问东西）how 怎样（问身体健康和方式）when 什么时间（问时候）who 谁（问人）