be动词用法歌：我用am,你用are，is连接他，她，它。单数名词用数名词全用are。
变疑问，往前提，句末问号莫丢弃。变否定，更容易，疑问否定任你变，句首大写莫迟疑。
解析: I am;You are;He is;She is;It is;We are;You are;They are. 用am, is, are填空
1. I ______ a boy. ______ you a boy? 2. The girl______ Jack's sister. 3. The dog _______ tall and fat.
4. The man with big eyes _______ a teacher. 5. ______ your brother in the classroom? 6. Where _____ your mother? 7. How _______ your father?
8. Mike and Liu Tao ______ at school. 9. That ______ my red skirt. 10.The jeans ______ on the desk. 11. Some tea ______ in the glass. 12. Gao Shan's shirt _______ over there. 13. My sister's name ______Nancy. 14._____you American?
15. He _____ in Class 4, Grade 1.
be后not莫忘记。
is，复
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16.It_____ a car. 28. They ____ cars . 17. ____ your mother in China? 18. What ____her name? 19.Those _____oranges. 20. Where _____ her mother? 21. How old _____your teacher? 22.What class _____ you in?
23. ______ your brother in the classroom? 含be动词的否定句和一般疑问句【练习】按要求完成下列各题。1. She is my sister. (改为否定句) ________________________________ 2. These are my books. (改为否定句) ________________________________ 3.That is Anna
’s eraser. (改为一般疑问句)
________________________________ 4. They are my parents. (改为一般疑问句) ________________________________ 5. I am Jane. (改为一般疑问句) ________________________________
【总结】
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含be动词的否定句和一般疑问句都是在肯定句的基础上变换而来的。
【否定句】
变否定句时，在be动词(am, is, are)后面加否定词not即可。如：I’m Linda.
→ I’m not Linda.
→ Her name is not /isn
’t Jane.
Her name is Jane.
【一般疑问句】
变一般疑问句时，把
be动词(am,is,are)提到句首，首字母大写，句末加问
号。肯定回答用Yes，否定回答用No。如：
Tom is my cousin.
→ Is Tom your cousin?
【特别提醒】
I’m 变一般疑问句时，通常为…主谓一致法练习
在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。但有些同学们对于哪些主语是第三人称单数还不十分清楚，现归纳总结如下：
一、人称代词he, she, it是第三人称单数。如：He likes watching TV.他喜欢看电视。She has lunch at twelve.她十二点吃午餐。It looks like a cat.它看起来像只猫。
二、单个人名、地名或称呼作主语；是第三人称单数。如：①Han Mei looks like her mother.韩梅看起来像她的母亲。②Beijing is in China.北京在中国。
Are you …？
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③Uncle Wang often makes cakes.王叔叔经常做蛋糕。
三、单数可数名词或\"this / that / the+单数可数名词\"作主语时，是第三人称单数。如：①A horse is a useful animal.马是有用的动物。
②This book is yours.这本书是你的。③That car is red.那辆小汽车是红色的。④The cat is Lucy's.这只猫是露茜的。
四、不定代词someone,somebody,nobody,everything,something等及指示代词this,that作主语时，是第三人称单数。如：
①Everyone is here.大家到齐了。
②There is something wrong with the watch.这块手表有毛病。③This is a pen.这是一支钢笔。④That is an eraser.那是一块橡皮擦。
五、不可数名词作主语时为第三人称单数。如：①The milk is in the glass.牛奶在玻璃杯里。②The bread is very small.那面包很小。
六、当数字或字母作主语时，看作第三人称单数。如：①\"6\" is a lucky number. \"6\"是个吉利数字。②\"I\" is a letter. \"I\"是个字母。巩固练习题：
I.写出下列动词的相应形式：1.第三人称单数：
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watch_________ listen _______ guess______ study______ do_________go________like ______carry_________ II.用所给动词的适当形式填空：
1．I ________(write) to my sister every week.
2. ______ Jerry ___________(do) homework every day? 3. Grandpa ________(like)__________(play) chess. 4. Tom’s family__________(watch) TV every night.5. It ________(take) me two hours to finish my homework.
6.What______yourmotherusually_______(do)intheevening?Sheusually_______ (wash) clothes.
7. There ________ (be) a football match on TV this evening. 8. I _________ (know) the boy.
9. They __________(go) to work on Saturdays. 10. He usually _____________(come) to school early. 11. I often _____________(have) rice, meat and vegetables. 12. My grandfather _____________(play) sports in the park. 13. Miss Li ____________(teach) English in our school.
14. Alicia and Jerry ______________ (do) homework after school. 15. Her sister ____________(have) Chinese every day. 单数句变复数句，复数句变单数句
1．It is a bus._______________________________________ 2．This is my sister._________________________________
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3．He is his friend .__________________________________ 4．That is her dictionary.______________________________ 5．Those are boxes._______________________________ 6．They are teachers.________________________________ 7．These are desks .________________________________ 8．We are boys. _____________________________ 名词所有格的构成及用法
名词在句中表示所有关系、所属关系、动作执行者及动作承受者等意义时常需用所有格形式。名词所有格也称为属格、主格，它主要包括's所有格、所有格和双重所有格三种表现形式。
定义：表示有生命的东西的名词及某些表示时间、距离、星球、世界、国家等无生命的东西的名词后加’ｓ来表示所有关系，叫做名词所有格。
名词所有格的用法：
一、名词+’ｓ（主要用于有生命的事物）
1、单数名词和不以-s结尾的复数名词在词尾加’ｓ构成所有格例如：
Jimmy’s book（吉米的书）Jane’s schoolbag（简的书包）Mark’s room（xx的房间）Qianqian’s mother（倩倩的妈妈）Children’s Day(儿童的节日、六一儿童节)
Wuhan’s summer is very hot.(武汉的夏天非常热。)
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of
Qianqian’s math is very good.(倩倩的数学很好。) 2、复数名词以-s结尾的只需要加’构成所有格。例如：
Twins’father is Mr. Brown. (双胞胎的爸爸是布朗先生。) Girls’favorite food is ice-cream. (女孩们最喜欢的食物是冰激凌。二、名词+of +名词
如果名词是无生命的，我们通常就要用名词系。
例如：
A bag of mine= my bag(我的书包) The name of the girl =the girl
女孩的名字’s name ()
’卧室的窗户s window() +of +名词的结构来表示所有关
)
The window of the bedroom = the bedroom三、特殊所有格
若一样东西为两人共有，则后一个人名用所有格；如果不是两人共有，而是各有各的，则两个名词都用所有格，且其后名词应为复数。
例如：
This is Tom and Jim
’s room.
这是xx和吉姆共有的房间。These are Tom’s and Jimrooms. ’s 这些是xxxx各自的房间。
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