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.B．They 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；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+not……Ex: 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=isn’t are not=aren’t （注意：am not一般不缩写）Ex：He is not a good football player.= He isn’t 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 my 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：、Who、Where、When 、What 、WhyHow+be（am，is，are）+其他用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，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______ Jack's sister.3）The dog _______ tall and fat4）The man with big eyes _______ a teacher.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.How ________ Linda’s Spotty? He’s 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.B ob 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 _______ The dog _______ My ruler _______ Your pen ___二.选择1.She ______ Miss Hen. A.be B.am C.is2.I ______ sorry. A./ B.am C.are3.Here ______ my ball. A.is B.are C.am4.You ______ number eight. A.are B.is C.am5.What_______this？ A.is B.are C.be6.Helen____ a student. A.be B.am C.is7.Those _____oranges. A.is B.are C.am8. How old _____your teacher? A.be B.am C.is9. Where __ ___ her mother? A.are B.is C.am10.The two cups of milk _____ for me. A.is B.are C.be11. Eric and Kathy ____ my students. A.are B.is C.am12. Your books ____ not good. A.is B.are C.be13. He ___ a boy. A.be B.am C.is14. It ___ my dog. A.is B.are C.be15.Whose socks ______ they? A.are B.is C.am三.写出下列词适当形式: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.she's(完整形式) ______7.it's(完整形式) ______ 8.they're(完整形式) ______ 9.don't(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. She’s Miss Lynn.否定句：__________________________________________一般疑问句：_______________________________________ 肯定回答：____________________________________________ 否定回答：____________________________________________3. I am in Grade 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：____________________________________________精品文档精品文档。