巩固练习Ⅰ. 单项选择。

1. ______ with fire. It’s very dangerous.A. PlayingB. PlayC. Don’t playD. Doesn’t play2．Don’t _____ the radio. The baby is sleeping.A. turn offB. turn onC. turn overD. turn down3. _____ hard and you’ll make prog ress in English.A. WorkB. To workC. WorkingD. Worked4. _____ worried about me Mom. I’ve grown up.A. Don’tB. Don’t beC. NotD. Not be5. _______ late again, Bill!A. Don't to beB. Don't beC. Not beD. Be not6. _______ cross the road until（直到）the traffic lights turn green.A. NotB. Won'tC. Doesn'tD. Don't7. Please help me carry it, ______?A. will IB. will youC. shall ID. shall we8. Don't make so much noise, ______?A. will youB. won't youC. shall weD. do you9. Kate, _______ your homework here tomorrow.A. bringB. bringsC. to bringD. bringing10. ________ me the truth, or I'll be angry.A. TellingB. To tellC. ToldD. Tell【真题链接】1. _______ on the grass, or it will “cry”. (2015 陕西中考)A. To walkB. Not to walkC. WalkD. Don’t walk2. _______ swim in the river alone, Karen. It’s too dangerous. (2015黑龙江绥化中考)A. NotB. Don’tC. Doesn’t3. ________ along this street, and you can find the hotel on your right, next to the market. (2015 吉林长春中考)A. WalkB. To walkC. WalksD. Walking4. Daniel，_______ play with the mobile phone while you’re walking in the street.(2015江苏盐城中考)A. don’tB. doesn’tC. won’tD. can’tⅡ. 将以下祈使句改为否定式。

1. Come here early.________________________2. Ask him._________________________3. Please wait for her.___________________________4. Read the book carefully.___________________________5. Sit under the tree, please._____________________________6. Let’s go there toget her._____________________________Ⅲ. 句型转换。

1. Will you please read it again more slowly? （改为祈使句）_____ _____ again more slowly, please.2. Let's watch the sports games. （改为反意疑问句）Let's watch the sports games, _____ _____?3. Please sit next to Nancy.（改为否定句）_____ _____ next to Nancy.4. Don't forget to turn off（关掉）the lights, please.（改为反意疑问句）Don't forget to turn off the lights, _____ _____?5. Come to my house tomorrow.（改为反意疑问句）Come to my house tomorrow, _____ _____?Ⅳ. 用括号内所给动词的适当形式填空。

1. It’s an important meeting. __________ (not, be)late.2. ____________ (not, make) any noise! Your mother is sleeping.3. ____________ (not, speak) with your mouth full of food and ____________ (be) polite.4. ____________ ( not, talk) and ____________ (read) aloud.5. ____________ (not, leave) your homework for tomorrow, Larry.6. ____________ (look) out! A car is coming.7. ____________ (give) us ten years and just see what our country will be like.8. ____________ (not, let) the baby cry.9. Wear more clothes or you ____________ (catch) a cold.10. Let’s ____________ (not, say) anything about it.【答案与解析】Ⅰ. 单项选择。

1. C。

从句子的后面意思可以判断前面应该用否定句，本句子是祈使句，祈使句的否定句是在句子前面加助动词don’t，在句子开头要大写。

2. B。

本句子是考查祈使句的否定句的用法。

从后面句子的意思“孩子在睡觉”可以理解前面的句子是用祈使句的否定句表示“不要打开收音机”的意思。

3. A。

本句为祈使句的肯定句。

祈使句的肯定句以动词原形开头，故本题选A。

4. B。

此句是祈使句的否定句，祈使句的否定句用don’t+动词原形，“be worried aboutsth./sb.”意为“为……担心”。

故本题选B。

5. B。

句意：“不要再晚了，Bill。

”，因此可知本句是be动词做谓语的祈使句的否定式。

以Don’t 开头，后面用be的原形。

6. D。

本句是行为动词的祈使句的否定式，在句首加Don’t.7. B。

肯定祈使句的反义疑问句，用will you 或者won’t you。

8. A。

否定祈使句的反义疑问句用will you。

9. A。

祈使句以动词原形开头。

10. D。

祈使句以动词原形开头。

【真题链接】1. D。

祈使句的否定句，直接在动词原形前加don’t。

2. B。

本句命令不要在河里独自游泳，有危险。

否定祈使句。

3.A．肯定祈使句，动词原形开头。

Walk along the street…意为“沿着这条街……”。

4. A。

否定祈使句，命令别人不要做某事。

动词原形前加don’t。

Ⅱ. 将以下祈使句改为否定式。

1. Don’t come here early.2. Don’t ask him.3. Don’t wait for her, please.4. Don’t read the book carefully.5. Don’t sit under the tree, please.6. Let’s not go there together.Ⅲ. 句型转换。

1. Read it2. shall we3. Don’t sit4. will you5. will / won’t youⅣ. 用括号内所给动词的适当形式填空。

1. Don’t be2. Don’t make3. Don’t speak,be4. Don’t talk, read5. Don’t leave6. Look7. Give8. Don’t let9. will catch 10. not say。