be动词的用法教学

1、Be 动词今天给大家讲解的是be动词，你知道什么是be动词吗？它又有哪些形式呢?be动词的三种基本形式为：am is，are。be动词的用法：般来说be动词要根据主词的人称来选择。（如卜表）Is she in China? Yes, she is. / No, she isnt.她在中国吗？ 是的，她在。/不，她不在。They are very sad.他们很伤心。他们不伤心。第一人称第二人称单数（I）:am复数(we): are单数（you你）:areI am a boy.我是一个男孩。I am not a boy.我不是一个男孩。Are you a boy? Yes, I am./ No,

2、 I am not.你是一个男孩吗？是的，我是。/不，我不是。We are Chi nese.我们是中国人。We are not Chi nese.我们不是中国人。Are you Chin ese? Yes, we are./ No, we arent.你们是中国人吗？是的，我们是。/不，我们不是。You are a girl.你是一个女孩。You are not a girl.你不是一个女孩。Are you a girl? Yes, I am. / No, I am not.你是一个女孩吗？是的，我是。/不，我不是。复数（you你们）:areYou are very young.你们非常年轻

3、。You are not very young.你们不是很年轻。Are you very young? Yes, we are./No, we arent.She is in Chi na. 她在中国。单数(he/she/it):isShe is not in China.她不在中国。第三人称复数(they): areThey are not very sad.他们不是很伤心。Are they very sad?Yes, they are./ No, theyarent.他们很伤心吗?是的，他们很伤心。/不,温馨提示：be动词前面的人称，是不可随意替换的。例如： 并不会出现Iis, You a

4、m, She are这样的情形. Be动词的用法口诀：我(I)用am你(you)用are,is连着他(he)单数名词用is，复数名词全用are； 变疑问，往前提，句末问号莫丢弃； 变否定，更容易，be后not莫忘记； 疑问否定任你变，句首大写莫迟疑。练习一一、用am, is, are填空1) I _ a student.2) You _ a doctor.3) _ she from Jinan?4) _ you American?5) He _ in Class 4, Grade 1.6) It_ a car.7) They _ cars8) _ your mother in China?9)

5、 _ your friends in New York?10) What _her name?11) These _buses.12) Those _oranges.13) Where _ her mother?14) How old _your teacher?15) What class _ you in?二、模仿Eg.That is a book.否定句：That is not a book.疑问句：Is that a book？回答：Yes, it is. / No, it isnt.1. This is a coat.否定句：疑问句：回答：I am, You are, She is她

6、(she)，它(it)；否定句： 疑问句： 回答：否定句： 疑问句： 回答： 否定句： 疑问句： 回答：、在下面的短文中填上恰当be动词。I _ a girl. My name _ Mary. I _ in Class 2, Grade 7. I _12 years old. Here _ my family photo. Look! These _ my parents andthose _ my grandparents. This boy _ my brother. He _ 15 yearsold now. That _ my cat, Mimi. It _ very lovely.练

7、习二一、在下面的题目中填上恰当的Be动词。1.I _ from Australia.2.She _ a student.3.Jane and Tom _ my friends.4. My pare nts_ very busy every day5.I _ a boy. _ you a boy? No, I _ not.6.The girl_ Jackssister.8.The dog _ tall and fat.9.The man with big eyes _ a teacher.10. _ your brother in the classroom?11. Where _ your m

8、other? She _ at home.12. How _ your father?13. Mike and Liu Tao _ at school.14. Whose dress _ this?15. Whose socks _ they?16. That _ my red skirt.17. Who _ I?18. The jeans _ on the desk.19. Here _some sweaters for you.20. The black gloves _ for Su Yang.21. This pair of gloves _ for Yang Ling.22.Wher

9、e_the bag? It _ on the table.Where _the bags? They _on the table.2. I am a student.3. You are a star.4. These are apples.23.Where _ your pen? It _Where_your pens? They24.Where _ her backpacks?Where_ her backpack?二、用BE动词的正确形式完成下列句子。6. You _ students.7. We _ students.8. You and I _ students.9. They _ students.10. Jim and Tom _ in America.三、英语陈述句变一般疑问句和否定句，和一般疑问句回答1. Im in Class five.否定句： _一般疑问句： _回答： _2. The man is a doctor.否定句： _一般疑问句： _回答： _3. They are my friends.否定句： _一般疑问句： _回答： _4. His shoes are black.否定句: _一般疑问句: _回答_und