服从命令

——小议祈使句

祈使句指的是表示命令、请求、建议或劝告的句子。其主语you常省略，谓语动词用原形，句末用感叹号或句号，读降调。

1. 肯定的祈使句

（1）动词原形+其他

     Stand up, please. = Please stand up.  请起立。

（2）Be + adj.

     Be careful! = Look out! = Take care! 小心 / 当心！

（3）Let's + 动词原形

     Let’s go to school together.  咱们一起上学去吧。

2. 否定的祈使句

(1) Don't + 动词原形

     Don't stand up. 别站起来。

     Don't be careless. 别粗心。

     Don't let them play with fire. 别让他们玩火。

（2）Let's ( let sb ) + not + 动词原形

     Let's not say anything about it. 对于这件事，咱们什么也别说。

     Let them not play with fire. 别让他们玩火。

3.祈使句的反意疑问句

(1)  肯定祈使句的反意疑问句反问部分用will you 或won't you。

      Please open the door, will/ won’t you?  请把门打开，好吗？

(2)  否定祈使句的反意疑问句反问部分只用will you。

      Don't be late again, will you? 别再迟到了，行不行？

(3)  以let's开头的祈使句反意疑问句反问部分用shall we。

      Let's turn on the TV, shall we? 我们把电视打开，好吗？

<特别注意> 只有以let's开头的祈使句的反意疑问句的反问部分才用shall we，而let us 开头的祈使句的反意疑问句的反问部分应为will you或won't you.如：Let us stay here, will/ won't you? 请（你）让我们留在这好吗？

 

语法练兵场

单项选择

1. The TV is too loud. Please________.

   A. turn it down   B. to turn it down   C. turn down it   D. to turn down it

2. _______ late again, Bill!

  A. Don't to be   B. Don't be   C. Not be   D. Be not

3. _______ cross the road until the traffic lights turn green.

  A. Not  B. Won't  C. Doesn't   D.  Don't

4. Please help me carry it, ______?

  A. will I   B. will you   C. shall I   D. shall we

5. Don't make so much noise, ______?

  A. will you   B. won't you   C. shall we   D.  do you

6. Do you know the girl ______under the tree?

  A. stand   B. to stand   C. standing   D. stood

7. Kate, _______ your homework here tomorrow.

  A. bring   B. brings   C. to bring   D. bringing

8. ________ me the truth, or I'll be angry.

  A. Telling   B. To tell   C. Told   D. Tell

9. I've kept the dog _______Maomao for a long time.

  A. Name   B. named   C. naming   D. to name

10. Don't you know that _______ is good for our health?

  A. swim   B. swimming   C. swam   D. swims 

句型转换

11. Will you please read it again more slowly? （改为祈使句）

   _____ _____ again more slowly, please.

12. If you don't listen to me, I'll go. （改为同义句）

   _____ _____ me, or I’ll go.

13. Let's watch the sports games.  （改为反意疑问句）

   Let's watch the sports games, _____ _____?

14. The teachers often tell the students not to be careless.  （改为祈使句）

_____ _____careless, please.

15. Please sit next to Nancy.  （改为否定句）

_____ _____ next to Nancy.

16. Don't forget to turn off the lights, please. （改为反意疑问句）

Don't forget to turn off the lights, _____ _____?

17. If you move, you'll die. （改为同义句）

_____ _____, or you'll die.

18. Come to my house tomorrow.  （改为反意疑问句）

Come to my house tomorrow, _____ _____?

19. 这是一个坏了的被子。 （翻译句子）

This is a ______ ______.

20. 让我们去帮帮那个哭泣的女孩吧。 （翻译句子）

Let’s go and help the _____ _____, please.  

参考答案 

语法练兵场  

1-5. ABDBA    6-10. CADBB

11. Read it    12. Listen to   13. shall we   14. Don’t be   15. Don’t sit

16. will you   17. Don’t move   18. will / won’t you   19. broken glass / cup   20. crying girl