1be 动词的用法一、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_ Jacks 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. She is in the dining room. My hair is long. Her eyes are small. 归纳：在有 be 动词的句子中，改否定句时只要在 be 动词_加上_。三、有 be 动词的一般疑问句Am I a Chinese? Yes, you are. No, you arent. Are they American? Yes, No, Is the cat fat? Yes, No, 四、 Be 动词在一般过去时中的变化：am-was is -was are-were was not=wasnt were not=werent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：1. 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.2五、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. My sisters name _Nancy.2. This _ not Wang Fangs 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.3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：_3. They were in his pocket.否定句：_一般疑问句：_肯、否定回答：_4. There was a car in front of the house just now.否定句：_一般疑问句：_肯、否定回答：_肯、否定回答：_根据句意，用 be 动词的适当形式填空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. 412. 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 Shans shirt _ over there. 本课学习小结：1 be 动词的用法：我用 _; 你用_; _ 用在他她它;复数全用_。2 在有 be 动词的句子中，改否定句时只要在 be 动词 _加上_。改一般疑问句时，将_移到句首。3 be 动词在一般过去时中的变化：am-_ ; is -_; are-_4 在 there be 句型中，主语是单数，be 动词用_；主语是复数，be 动词用_； 如有几件物品，be 动词根据_的那个名词决定。