小学英语语法及练习1——_be动词的用法
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一、口诀：我用am, 你用are, is用在他她它，复数全用are。
例题：
1. I ______ a boy. ______ you a boy? No, I _____ not.
2. The girl______ Jack's sister.
3. The dog _______ tall and fat.
4.The jeans ______ on the desk.
二、有be动词的肯定句和否定句
I am from London. I am not from London.
He is a teacher. He is not a teacher.
She is in the dining room. She is not in the dining room.
My hair is long. My hair is not long.
Her eyes are small. Her eyes are not small.
三、有be动词的一般疑问句
Am I a Chinese? Yes, you are. No, you aren’t.
Are they American? Yes, they are. No, they aren’t.
Is the cat fat? Yes, it is. No, it isn’t.
四、Be动词在一般过去时中的变化：am--was is --was are--were
⑴am 和is在一般过去时中变为was。（was not=wasn’t）
⑵are在一般过去时中变为were。（were not=weren’t）
⑶带有was或were的句子，其否定、疑问的变化和is, am, are一样，即否定句在was或were后加not，一般疑问句把was或were调到句首。
例题：
I _______ at school just now.
2. He ________ at the camp last week.
3. We ________ students two years ago.
4. They ________ on the farm a moment ago.
5. Yang Ling ________ eleven years old last year.
6. The mobile phone _______ on the sofa yesterday evening.
五、there be 句型中be动词的用法
1、在there be 句型中，主语是单数，be 动词用is；主语是复数，be 动词用are；如有几件物品，be 动词根据最近be 动词的那个名词决定。
2、there be 句型的否定句在be 动词后加not，一般疑问句把be 动词调到句首。例题：
1、There___________ a lot of sweets in the box.
2、There___________ some milk in the glass.
3、There____________-some people under the the big tree.
4、There___________ a picture and a map on the wall.
六、综合练习
用恰当的be动词填空。
1. The man with big eyes _______ a teacher.
2. ______ your brother in the classroom?
3. Where _____ your mother? She ______ at home.
4. How _______ your father?
5. Mike and Liu Tao ______ at school.
6. Whose dress ______ this?
7. Whose socks ______ they?
8. That ______ my red skirt.
9. Who ______ I?
10. Here ______ a scarf for you.
11. Here ______ some sweaters for you.
12. The black gloves ______ for Su Yang.
13. This pair of gloves ______ for Yang Ling.
14. The two cups of milk _____ for me.
15. Some tea ______ in the glass.
16. Gao shan's shirt _______ over there.
句型转换
1. It was exciting.
否定句：________________________________________________ 一般疑问句：____________________________________________ 肯、否定回答：__________________________________________ 2. All the students were very excited.
否定句：________________________________________________ 一般疑问句：____________________________________________ 肯、否定回答：__________________________________________ 课后练习
根据句意，用be动词的适当形式填空
1. My sister's name ______Nancy.
2. This ______ not Wang Fang's pencil.
3. ______ David and Helen from England?
4. There ______ a girl in the room.
5. There ______ some apples on the tree.
6. _______ there any kites in the classroom?
7. _______ there any apple juice in the bottle?
8. There _______ some bread on the plate.
9. There _______ a boy, two girls, three men and ten women in the park.
10. You, he and I ______ from China.
11.There____________ a box of rubbers near the books.
12.There_____________ lots of flowers in our garden last year.
13.There_____________ a tin of chicken behind the fridge yesterday.
14.There_____________ four cups of coffee on the table.
15. There ________ an apple on the plate yesterday.
16. There ________ some milk in the fridge on Sunday.
句型转换
1. They were in his pocket.
否定句：________________________________________________ 一般疑问句：____________________________________________ 肯、否定回答：________________________________________