Be动词的讲解

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1、Be动词用法及综合练习一 基本形式： am， is ， are二定义：1. 是（表状态） （打开书本P77-P78，找出一下意思的句子）Ex: A. I am very happy. BThey are our friends.2. 在（表存在，位置）Ex：A. The book is on the desk.B.She is at home.三 主词+Be动词一般来说be动词要根据主词的人称来选择，如；第一人称单数（I）：amI am a boy.复数（We）:are We are students. 第二人称单数（you 你）：are You are girl. 复数（you 你们）：ar

2、e You are young. 第三人称单数（she、he、it）：is He is right.复数（they）：are They are coming.四Be动词的否定1.含be动词（am、is、are）的肯定句在be动词后加not，即变成否定句的格式：肯:主词+am/is/are+否:主词+am/is/are+notEx: 肯:He is a good father.否：He is not a good father.练习1.She is a bad girl. (写出否定句) 2. It is a dog. 3. be动词可以跟not缩写在一起is not=isnt are not=

3、arent （注意：am not一般不缩写）Ex：He is not a good football player. = He isnt a good football player.练习 1.They are not a hard-working boys. （写出它的缩写句） 2.She is not good at dancing. 五Be动词的疑问句：1.在谓语是be动词的句子中，将be动词移到主词前，句尾加“？”，即可构成疑问句格式：肯：主词+am/is/are+疑：Am/Is/Are+主词+Ex：肯;It is my pen.疑：Is it my pen？练习 1.She is m

4、y sister. （写出它的疑问句） 2.He is a handsome boy. 2.be动词开头的一般疑问句，可用Yes或No 回答，而答句中的主词需要用代名词（I/She/He/They/We等）代替.格式：肯：Yes，主词+am/are/is. 否：No,主词+am/are/is+not.Ex： Is that man your friend？ 答：Yes,he is/No,he is not.练习：1.Is he your handsome father?肯定回答：_ 否定回答: _ 2.Are you happy？ 肯定回答：_ 否定回答: _ 特殊疑问句：疑问词5个W：、Wh

5、o、Where、When 、What 、Why How+be（am，is，are）+其他Be动词的用法口诀 : 我用am，你用are，is连着他，她，它； 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.练习题：用be(is, am,are)动词的适当形式填空1）I _ a boy. _ you a boy? No, I _ not.2）The girl_ Jacks sister.3）The dog _ tall and fat4）The man with big eyes _ a tea

6、cher.5）_ your brother in the classroom?6）How _ your father?7）Mike and Liu Tao _ at school.8）Whose dress _ this?9)The jeans _ on the desk10)Here _ a scarf for you.练习二：1. Mr. Cow likes to eat grass. He _ very strong.2. I _ fat. I _ tall.3. Who _ your sister? Jenny _.4. _ you Mr. Birdie? Yes, I _.5. Ho

7、w _ Lindas Spotty? Hes fine.6. My pet _ a smart monkey.7. How many people _ there in your family?8. _ you in the classroom? Yes, I _.9. Who _ this man in the photo? It _ your father.10. Bob and Lily _ my classmates.14)请在这些代词后面填上相应的be动词形式： I _ you _ she _ he _ it _ they _ Jim _ Tony and Marry _ Gina

8、_ The dog _ My ruler _ Your pen _二.选择 1.She _ Miss Hen. A.be B.am C.is 2.I _ sorry. A./ B.am C.are 3.Here _ my ball. A.is B.are C.am 4.You _ number eight. A.are B.is C.am 5.What_this？ A.is B.are C.be 6.Helen_ a student. A.be B.am C.is 7.Those _oranges. A.is B.are C.am 8. How old _your teacher? A.be

9、B.am C.is 9. Where _ _ her mother? A.are B.is C.am 10.The two cups of milk _ for me. A.is B.are C.be 11. Eric and Kathy _ my students. A.are B.is C.am 12. Your books _ not good. A.is B.are C.be 13. He _ a boy. A.be B.am C.is 14. It _ my dog. A.is B.are C.be 15.Whose socks _ they? A.are B.is C.am 三.写

10、出下列词适当形式: 1.is (复数)_ 2.we are (缩略形式) _ 3.are not(缩略形式) _4.is not (缩略形式) _ 5.can not(缩略形式) _6.shes(完整形式) _7.its(完整形式) _ 8.theyre(完整形式) _ 9.dont(完整形式) _改句练习卷（一）把下列句子改成否定句和一般疑问句并作肯定或否定回答。1.This is the reading room. 否定句：_ 一般疑问句： _ 肯定回答：_ 否定回答：_ 2.Shes Miss Lynn. 否定句：_ 一般疑问句： _ 肯定回答：_ 否定回答：_ 3.I am in Gr

11、ade 3. 否定句：_ 一般疑问句： _ 肯定回答：_ 否定回答：_ 4.Miss Zhang is our English teacher. 否定句：_一般疑问句： _肯定回答：_ 否定回答：_ 5.We are teachers.否定句：_一般疑问句： _肯定回答：_ 否定回答：_ 6.These are pears. 否定句：_一般疑问句： _肯定回答：_ 否定回答：_ 7. It is a nice pen.否定句：_一般疑问句： _肯定回答：_ 否定回答：_ 8.We are good at drawin pictures.否定句：_一般疑问句： _肯定回答：_ 否定回答：_ 9. I am a pretty girl.否定句：_一般疑问句： _肯定回答：_ 否定回答：_ 10. My sister is friendly.否定句：_一般疑问句： _肯定回答：_ 否定回答：_