助動詞-do-does的練習(xí)

1、助動詞-do-does的練習(xí)be動詞，情態(tài)動詞，助動詞do/does的用法區(qū)別及練習(xí)1.     由連系am，is，are構(gòu)成的句子：變一般疑問句時把am，is，are提到句子的前面，句尾用問號即可。變否定句時直接在am，is，are后面加not即可。例如： 肯定句:he is a student.一般疑問句: is he a student?否定句: he is not a student.畫線提問: 對he提問: who is a student?對 a student 提問: what is he

2、or what does he do?2. 由情態(tài)動詞can, may, should等構(gòu)成的句子: 變一般疑問句時把can,may,提到句子的前面,句尾用問號即可.變否定句時直接在can,may,后面加not即可. 例如:肯定句: she can swim.一般疑問句: can she swim?否定句: she can not swim.畫線提問: 對she提問: who can swim?對swim提問: what can she do3. 由行為動詞構(gòu)成的句子: 需要加助詞do或does. 變一般疑問句時把do/do

3、es放在句子前面. 變否定句時把dont/doesnt放在動詞的前面。要注意觀察動詞的形式并對號入座。一般疑問句和否定句的動詞三單式都要變回原型。play-do      plays-does 例如:肯定句: they play football after school.    he plays football after school.一般疑問句: do they play football after school   does he&#

4、160;play football after school否定句: they don't (do not) play football after school. he doesnt play football after school.畫線提問: 對they/he提問: who plays football after school?  對play football提問: what do they do after school what does he do after schoo

5、l對after school提問: when do they play football when does he play football針對性練習(xí)按要求改寫句子：1. i know the answer.(一般疑問句)           _ _ _the answer?2. we can see some birds.(一般疑問句)_ _ see _ birds?3. he designs clothes.(一般疑問句)  &#

6、160;_ he _ clothes?4. there are some flowers on the teachers desk.(一般疑問句)_ _ _ flowers on the teachers desk?5. there are some apples on the tree.(否定句)there _ _ _ apples on the tree.6. i think he is very old.(否定句)i _ think he _ very old.7. please colour it green.(否定句)_ _ colour it green.8. these doct

7、ors are helpful.(變否定句)_ _ _ _.9. you may have some hot dogs.(一般疑問句)_ _ _ _ _.10. there arent any pears in the box.(同義句) there are _ pears in the box. sign means “no smoking”.what _ this sign _12. she looks young. （改一般疑問句）_ she _ young?13. she is young.（改為一般疑問句） _ _ _14. my pencils are

8、 in the pencil-box.(對劃線部分提問)_ _ your pencils?15. i get up at six every day.(對劃線部分提問)_ _ _ you get up every day?16. they like to walk home.(改為一般疑問句)_ they _ _ _ _17. these are cars.(用buses改寫成選擇疑問句)are these cars_ _ 18. my plant is one month old.(就劃線部分提問)_ _ _ _ plant?19. two

9、boys are in our house.(改為there be句型)_ _ two boys in our house. plant has two green leaves._ _ _ _ _ _plant _21. miss li goes to hong kong by plane.（同義句）miss li _ _ hong kong.22. the women work in the shoe factory.（就劃線部分提問）_ _ _ women _23. he is happy, because he is going to take

10、a trip tomorrow.（就劃線部分提問）_ _ _ _24. my father can cook the meals.（就劃線部分提問）_ _ _ father _25. you should add water often.（一般疑問句）_ _ _ water often?一、變否定句時相關(guān)詞的改變肯定句變否定句時，除將謂語變?yōu)榉穸ㄊ酵猓渲衅渌~語也可能隨之改變，如將some改為any，too和also改為either，already改為yet，and改為or等：there are some birds in the tree. 樹上有些鳥。there ar

11、ent any birds in the tree. 樹上沒有鳥。he likes the girl, too. 他也喜歡這個女孩。he doesnt like the girl, either. 他也不喜歡這個女孩。we have already seen the film. 我們已看過這部電影。we have not seen the film yet. 我們沒有看這部電影。he likes singing and dancing. 他喜歡唱歌和跳舞。he doesnt like singing or dancing. 他不喜歡唱歌也不喜歡跳舞。二、部分否定與完全否定比較以下句子：all of us laughed when we heard it. 聽到這事時我們都笑了。(肯定句)all of us didnt laughed when we heard it. 聽到這事時我們并未都笑。(部分否定)not all of us laughed when we heard it. 聽到這事時我們并未都笑。(部分否