Be动词的讲解

1、Be动词用法及综合练习1 .基本形式：am, is , are2 .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.8. They are our friends.2 .在（表存在，位置）Ex: A. The book is on the desk.3 .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） :areWe are students.第二人称单数（you你）：areYou are girl.复数（you你们）：ar

2、eYou are young.第三人称单数（she he、it）: isHe is right.复数（they）: areThey 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+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 ' a re n

3、ot=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）4. 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

4、：Is it my pen?练习I.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

5、疑问句：疑问词 5 个 W:、Who、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 Jack's sister.3) The dog tall and fat4) The man with b

6、ig 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 &

7、#39; 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. Bob and Lily my classmates.14）请在这些代词后面填上相应的 she they Jim The dog二.选择I.She Miss Hen.C.is2.I sorry.C.are3 .Here my ball.C.am4

8、 .You number eight.C.am5 .What this?C.be6 .Helen a student.C.is7 .Those oranges.C.am8 . How old your teacher?be动词形式： I he itTony and Marry My rulerA.beA./A.isA.areA.isA.beA.isA.beyou_ GinaYour penB.amB.amB.areB.isB.areB.amB.areB.amC.is9 . Where her mother?A.are B.isC.am10 .The two cups of milk for m

9、e.A.isB.areC.be11 . Eric and Kathy my students.A.are B.isC.am12 . Your books not good.A.isB.areC.be13 . He a boy.A.beB.amC.is14 . It my dog.A.isB.areC.be15 .Whose socks they?A.are B.isC.am三.写出下列词适当形式：16 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充整形式）7.it's（

10、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： 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：