英语中如何把陈述句变成一般疑问句

一、句子中有be(am is are was were )动词、情态动词（can would may）、will 时，只要直接把这些词置于句首，句末改成问号。

二、谓语动词是行为动词时，必须在句首加上助动词Do、Does （单三）、Did（过去式）加上这些助动词后，句子中谓语动词必须用原形。

英语中如何把肯定句变成否定句

一、句子中有be(am is are was were )动词、情态动词（can would may）、will 时，只要直接在这些词后加not.

二、谓语动词是行为动词时，必须在动词前加上动don’t 、doesn’t（单三）、didn’t（过去式）,句子中谓语动词用原形。

注意：在把肯定句改成否定句或一般疑问句的时候,要注意句中是否有already、some、something、somebody等词，如果有也必须进行改变，already要改成yet，some、something、somebody等分别改成any、anything、anybody等。另外，在改成否定句的时候注意把too改成either, both改成neither, all 改成none等.在改成一般疑问句的时候，常常把第一人称I/we

改成第二人称you, my /our改成第二人称your, me/ us改成第

二人称you。

一般疑问句和否定句专项练习

把下列句子变成一般疑问句和否定句。

1. Mike is answering the phone now.

2. Tom and Mary are doing the sports.

3. Jack often gets up at 6:00 in the morning.

4. I do my homework at home everyday.

5.My brother often goes to school on foot.

6. I am going to buy a new bike.

7. They are going to swim in the ocean.

8. John went to the Great Wall last year.

9. The students watched the game in the classroom.

10. Ｉcan play basketball.

11. She will go to the park tomorrow.

12. He would like to play badminton with his friends.