助動(dòng)詞dodoes的練習(xí)

1、1.由連系am，is，are構(gòu)成的句子：變一般疑問句時(shí)把a(bǔ)m，is，are提到句子的前面，句尾用問號(hào)即可。變否定句時(shí)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 isnot a student.畫線提問:對(duì)he提問: Who is a student?對(duì)a student提問: What is he? or What does he do?2.由情態(tài)動(dòng)詞can, may, should等構(gòu)成的句子:變一般疑問句時(shí)把can,may,提到句子的前面,句尾用問號(hào)即可.變否定句時(shí)直接在can,ma

2、y,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(duì)she提問：Who can swim?對(duì)swim提問：What can she do?3.由行為動(dòng)詞構(gòu)成的句子：需要加助詞do或does.變一般疑問句時(shí)把do/does放在句子前面.變否定句時(shí)把dont/doesnt放在動(dòng)詞的前面。要 注意觀察動(dòng)詞的形式并對(duì)號(hào)入座。 一般疑問句和否定句的動(dòng)詞三單式都要變回原 型。play- doplays-does一般疑問 句：Do they play footballafter school?Doe

3、sheplayfootball after school?否 定句：They dont (do not) play footballafterschool.Hedoesntplay football after school.畫線提問：對(duì)they/he提問：Who plays football after school?對(duì)playfootball提 問：What do they do after school?Whatdoeshedoafter school?對(duì)afterschool提 問：When do they play football?Whendoesheplayfootball?例如

4、：肯定句：They play football after school.school.針對(duì)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）seebirds?3. He designs clothes.（一般疑問句）heclothes?4. There are some flowers on the teachersdesk.（一般疑問句）_ _ _ flowers on the teachersdesk?5. There are some apples on the tree.（

5、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 doctors 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

6、 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 arein the pencil-box.（對(duì)劃線部分提問）_ _ your pencils?15. I get up at six every day.（對(duì)劃線部分提問）you get up everyday?16. They like to walk home.（改為一般疑問句）_ they _ _ _ _?17. These are ca

7、rs.（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 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 th

8、e shoe factory.He plays football after就劃線部分提問）_ _ _ women _ ?23. He is happy,because he is going to take 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(shí)相關(guān)詞的改變 肯定句變否定句時(shí)， 除將謂語變?yōu)榉穸ㄊ酵猓?句中其他詞語也可能隨之改變， 女口將some改為any

9、,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 arent any birds in the tree.樹上沒有鳥。All of us didnt laughed when we heard it.聽到這事時(shí)我們并未都 笑。（部分否定）Not all of us laughed when we heard it.聽到這事時(shí)我們并未都笑。（部分否定）None of us laughed when we heard it.聽到這事時(shí)我們都沒笑。（完全否定）【注】可能涉及部分否定的詞語有both, all, always, every等,即not both表示“并非兩者都”,not all表示“并非所有的都”,not always表示“并 非總是”，not every表示“并非每個(gè)都”。He likes the girl, too.他也喜歡這個(gè)女孩He doesnt like the girl, either.We have already seen the film.We have not seen the film yet.He likes singing and dancing.他