Be动词的讲解Word下载.docx

1、I am a boy.复数（We）:are We are students. 第二人称单数（you 你）： You are girl. 复数（you 你们）： You are young. 第三人称单数（she、he、it）：is He is right.复数（they）： 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+not 肯:He is a good father.否：He is not a good father.练习1.She is a

2、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=arent （注意：am not一般不缩写）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：疑：Am/I

3、s/Are+主词+肯;It is my pen.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：Yes，主词+am/are/is. 否：No,主词+am/are/is+not. 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.Ar

4、e you happy？特殊疑问句：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_ Jacks sister.3）The dog _ tall and fat4）T

5、he 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. _ yo

6、u Mr. Birdie? Yes, I _.5. How _ 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 _

7、Jim _ Tony and Marry _ Gina _ 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.be6.Helen_ a student. A.be B.am C.is 7.Those _oranges. A.is B.are C.am 8. H

8、ow old _your teacher? A.be 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

9、_ they?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.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：否定回答：2. Shes Miss Lynn. _ _ 3. I am in Grade 3. 4. Miss Zhang is our English teacher. _ _5. We are teachers.6. These are pears. 7. It is a nice pen._ _8.We are good at drawin pictures.9. I am a pretty girl.10. My sister is friendly.