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:一般来说be动词要根据主词的人称来选择。(如下表)第一人称单数(I):amI 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, I am not.你是一个男孩吗?是的,我是。/不,我不是。复数 (we): areWe are Chinese. 我们是中国人。We are not Chinese. 我们不是中国人。Are you Chinese? Yes,
2、we are./ No, we arent.你们是中国人吗? 是的,我们是。/ 不,我们不是。第二人称单数(you你):areYou 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。You are not very young. 你们不是很年轻。Are you very young? Yes, we are./ No, we arent.
3、第三人称单数(he/she/it):is She is in China. 她在中国。She is not in China. 她不在中国。Is she in China? Yes, she is. / No, she isnt.她在中国吗? 是的,她在。/ 不,她不在。复数 (they): areThey are very sad. 他们很伤心。They are not very sad. 他们不是很伤心。Are they very sad? Yes, they are./ No, they arent.他们很伤心吗? 是的,他们很伤心。/ 不,他们不伤心。温馨提示: be动词前面的人称,是
4、不可随意替换的。例如:I am, You are, She is,并不会出现I is, You am, 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),她(she),它(it); 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) _ youAmerican?5) He_inClass4
5、,Grade1.6) It_acar. 7) They_cars 8) _yourmotherinChina?9) _yourfriendsinNewYork?10) What_hername? 11) These_buses.12) Those_oranges. 13) Where_hermother?14) Howold_yourteacher?15) Whatclass_youin?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. Thi
6、s is a coat. 否定句: 疑问句: 回答:2. I am a student.否定句: 疑问句: 回答:3. You are a star. 否定句: 疑问句: 回答:4. These are apples. 否定句: 疑问句: 回答:三、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 and those _ my grandparents. This boy
7、_ my brother. He _ 15 years old now. That _ my cat, Mimi. It _ very lovely.练习二一、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 parents _very busy every day。5.I_aboy._youaboy?No,I_not. 6.Thegirl_Jackssister. 8.Thedog_tallandfat. 9.Themanwithbigeyes_ateach
8、er. 10._yourbrotherintheclassroom? 11.Where_yourmother?She_athome. 12.How_yourfather? 13.MikeandLiuTao_atschool. 14.Whosedress_this? 15.Whosesocks_they? 16.That_myredskirt. 17.Who_I? 18.Thejeans_onthedesk. 19.Here_somesweatersforyou. 20.Theblackgloves_forSuYang. 21.Thispairofgloves_forYangLing. 22.
9、Where_the bag? It _ on the table. Where _the bags? They _on the table.23. Where _your pen? It _under the sofa. Where_your pens? They _under the sofa.24. Where _her backpacks? They _on the chair. Where_her backpack? It _on the chair.二、用BE动词的正确形式完成下列句子。1. I _ a student. 6. You _ students.2. She _ a st
10、udent. 7. We _ students.3. He _ a student. 8. You and I _ students.4. It _ a country. 9. They _ students.5. You _ a student. 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_