be动词助动词

be动词和实义动词的区别1、be动词:是...含有be动词的句子在进行否定、疑问句变化时，都要在be动词上变化。

(1)变为否定句：主语+be+ not+其他。

即，直接在be后not.①I’m a Chinese boy.(变为否定句)②You are good. (变为否定句)③He is strict with us. (变为否定句)④She is from America. (变为否定句)以上四个句子中都含有am、is或are，变否定句时，直接在am 、is、are后面加上not.即：①I’m not a Chinese boy.②You are not good.③He is not strict with us.④She is not from America.(2)变为一般疑问句：Be+主语+其他？即把be动词提到主语的前面。

注意：当肯定句主语为第一人称I和We时，变一般疑问句要变为第二人称，be动词也要相应的变为are.同样肯定句中的my 和our 也要变为your.①I am a boy. (变为一般疑问句)→Are you a student?②We are good friends. (变为一般疑问句)→Are you good friends?③She is from America. (变为一般疑问句)→Is she from America?④He is strict with us. (变为一般疑问句)→Is he strict with us?(3)变特殊疑问句：一般的要求为“对划线部分提问”，即用特殊疑问词代替划线的部分，后接省略划线部分的一般疑问句（一般不再出现划线部分）。

如：①I’m well.（对划线部分提问）→How are you?②She is from America. （对划线部分提问）→Where is she from?一、在下面的短文中填上恰当be动词。

I ______ a girl. My name _______ Mary. I ______ in Class 2, Grade 7. I ______ 12 years old. Here ______ my family photo. Look! These ______ my parents and those _______ my grandparents. This boy ______ my brother. He ________ 15 years old now. That ______ my cat, Mimi. It ______ very lovely.二、在下面的题目中填上恰当的Be动词。

1. I ________from Australia.2. She _______ a student.3. Jane and Tom _________my friends.4. My parents _______very busy every day.5. He ________ at school.6. We ________ students.7. They ________ from China.8. Yang Ling ________ eleven years old.9. Where ________ your friends? 10. How old __________ you last year?11. Ten and two ________ twelve.2。

实义动词，也叫行为动词。

（1）肯定句：①I have a blue book.②He has a brother.③She wants to be a teacher.④They like to play basketball.(2)否定句：主语+don’t/doesn’t+动词原形。

其中do/does为助动词，是来帮助实义动词构成否定或疑问句的，但加了do/does后，其后面的动词必须用动词原形。

①I have a blue book.（变为否定句）→I don’t have a blue book.②He has a brother. （变为否定句）→He doesn’t have③She wants to be a teacher. （变为否定句）→She doesn’t want to be a teacher.④They like to play basketball. （变为否定句）→They don’t like to play basketball.(3)一般疑问句：Do/Does +主语+动词原形+其他？句中加了do/does后，其后面的动词还是必须用动词原形。

①I have a blue book.(变为一般疑问句)→Do you have a blue book?②He has a brother. (变为一般疑问句)→Does he have a brother?③My brother does his homework before supper. (变为一般疑问句)→Does your brother do his homework before supper?④She wants to be a teacher. (变为一般疑问句)→Does she want to be a teacher?⑤They like to play basketball. (变为一般疑问句)→Do they like to play basketball?(4)特殊疑问句：特殊疑问词+一般疑问句？①Your sister likes English best because it’s interesting. (对划线部分提问)→Why does your sister like English best?②He does his homework before supper. (对划线部分提问)→When does he do his homework?注意：当含有and引导的短语在句中做谓语或宾语，我们把这类句子变否定句时，必须把and 变为or.如：(1)He can swim and dance. （变为否定句）→He can’t swim or dance.(2)My father likes English and math. （变为否定句）→My father doesn’t like English or math.一：认一认,读一读（请分辨哪些是第三人称单数并圈出）Tony friend my father Jenny Gogo and Tom it the cat my teacher they you my brothers ant ants she he father and mother my brother my brothers friends your sister your sisters teachers Olina二：填一填，读一读（用do 和does/don’t doesn’t填空）you like soccer? Yes, I .they like ping--pong? Yes, they .Tony and Ben like baseball? No, they .your friends like tennis? Yes, they .Jenny like playing the guitar? Yes, she .综合练习：I. 用be 动词的适当形式填空1. __________ your father a worker﹖Yes, he __________.2.They __________ in the classroom．3.Where __________ my books﹖4.These ___________her pears.5.How much _________the T-shirt?6.How much __________ the socks?7.Our mother _________forty last year.8.You can _________ in our school music club.9.Let's ___________friends.10.He and I _________friends.11.Someone __________ in the room.12. There ____ some apples on the table yesterday.II．划出每句中正确的词1.(Is/Are)his eraser on the sofa?2.(Where/What)are your baseball?3.(Do/Does)Mary have a clock?4.(Are/Do)they want to see a movie?6.I (don't/ doesn't)like hamburgers.7.Why does Alice (likes/like)music?8.Who (am/is) your father?9.(What/What's) her favorite subject?10.How much (are/is) her socks?11. I (am, is, was, were) busy last week.12. Tom and I (am, are, was, were) late for school yesterday.13. I (walk, walks, walked, walking) to school last Saturday.14. Rose (does not, did not, ) visit her uncle last month.15. There (is, was, are, were) a lot of people over there ten years ago. II.用括号内动词的适当形式填空。

1. He often ________(have) dinner at home.2. Daniel and Tommy _______(be) in Class One.3. We _______(not watch) TV on Monday.4. Nick _______(not go) to the zoo on Sunday.5. ______ they ________(like) the World Cup?6. What _______they often _______(do) on Saturdays?7. _______ your parents _______(read) newspapers every day?8. The girl _______(teach) us English on Sundays.9. She and I ________(take) a walk together every evening.10. There ________(be) some water in the bottle.11. Mike _______(like) cooking.12. They _______(have) the same hobby.13. My aunt _______(look) after her baby carefully.14. You always _______(do) your homework well.15. I _______(be) ill. I'm staying in bed.16. She _______(go) to school from Monday to Friday.17. Liu Tao _______(do) not like PE.III. 改错(划出错误的地方，将正确的写在横线上)1. Is your brother speak English? __________________2. Does he likes going fishing? __________________3. He likes play games after class. __________________4. Mr. Wu teachs us English. __________________5. She don't do her homework on Sundays. _________________ V、模仿Eg. That is a book.否定句：That is not a book.疑问句：Is that a book？回答：Yes, it is. / No, it isn’t.This is a coat.否定句：疑问句：回答：I am a student.否定句：疑问句：回答：These are appless.否定句：疑问句：回答：。