陈述句变一般疑问句和肯定句变否定句的几点技巧

一、陈述句变一般疑问句的几点技巧

1、如果所给的陈述句中含有be动词（am/ is /are/ was /were)、情态动词(can/may/could/would will/shall等词时）变一般疑问句时，只将其提到句子的首位并大写第一个英文字母，其余的照抄不变，遇到some改为any, my改为your, I改为you.

2、如果所给的陈述句中没有be动词（am/ is /are/ was /were)、情态动词(can/may/could/would will/shall等词时）而是有行为动词，变一般疑问句时，首先要根据主语和时态来判断。

a.当所给的句子的时态为一般现在时态且主语为第一、二人称或复数人称时则在句子首位直接加Do,其余照抄不变，遇到some改为any, my改为your, I改为you.

b.当所给的句子的时态为一般现在时态且主语为第三人称单数时，则在句子首位直接加Does,原句中的动词恢复原形，其余照抄不变，遇到some改为any, my改为your, I 改为you.

c.当所给的句子的时态为一般过去时态，则在句子首位直接加Did,原句中的动词恢复原形，其余照抄不变,遇到some改为any, my改为your, I改为you.

二、肯定句变为否定句的几点技巧

1.如果所给的肯定句中含有be动词（am/ is /are/ was /were)、情态动词(can/may/could/would will/shall等词），则直接在be动词、情态动词后加not,遇到some 改为any, a lot of/lots of对应的改为many或much.

2.如果所给的肯定句中没有be动词（am/ is /are/ was /were)、情态动词(can/may/could/would will/shall等词），而是有行为动词时，则根据主语和时态来判断。

a.当所给的句子的时态为一般现在时态且主语为第一、二人称或复数人称时则在原动词前，加don't其余照抄不变，遇到some改为any,

a lot of/lots of对应的改为many或much.

b.当所给的句子的时态为一般现在时态且主语为第三人称单数时，则在原动词前加

doesn't原句中的动词恢复原形，其余照抄不变,遇到some改为any,a lot of/lots of对应的改为many或much.

c.当所给的句子的时态为一般过去时态，则在原动词前加didn't原句中的动词恢复原形，其余照抄不变,遇到some改为any,a lot of/lots of对应的改为many或much.

将下列句子变为一般疑问句和否定句

1. His father is an English teacher.

2. These cats are crying.

3. They can swim.

4. I like to read English.

5. I go to school on foot.

6. He likes English.

7. His father goes to work by bus.

8. He is crying under the tree.

9. His birthday is on the twentieth of November.

10. Mrs. Li and Kitty are in a big shop.

11. Kitty is wearing her new uniform.

12. The boy under the tree is hungry.

13. He goes to school every day.

14. I want to have a model car.

15.She wants a cup of coffee.

16. Mrs. Li and Kitty watch television at night.

17. I do my homework after school.