初中英语――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 + n./adj.Be a good boy!要做一个好孩子!Be careful! = Look out! = Take care!小心/当心！（3）Let +宾语+动词原形+其它成分Let me help you.让我来帮你。
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.别大意。
Don“t let them play with fire.别让他们玩火。
（2）Let型的否定式有两种:“Don“t + let +宾语+动词原形+其它成分”和“L et +宾语+ not +动词原形+其它成分”。
Don“t let him go. / Let him not go.别让他走。
Let them not play with fire.别让他们玩火。
（3）no开头,用来表示禁止性的祈使句。
No smoking!禁止吸烟!No fishing!禁止钓鱼!3.祈使句的强调形式，通常在肯定祈使句式前加上助动词Do。
例如：Do shut up!快住口！4.祈使句的回答祈使句的动作通常是表示将来发生的动作，所以回答祈使句时，大凡用will或won’t。
在回答具有否定意义的祈使句时，要注意两点：1)形式一致(即Yes与will保持一致；No与won’t保持一致)2)意思相反(即Yes是“不”的意思；No是“是”的意思)。
在回答时，要注意分析上下文语境中所提供的条件。
如：---Don’t go out, please. It’s raining heavily outside.请不要出去。
外面雨下得很大。
---- Yes, I will. I have to meet my brother at the airport.不行，我得去机场接我弟弟。
5.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shallwe，而letus开头的祈使句的反意疑问句的反问部分应为will you或won“tyou.如：Let us stay here, will/ won“tyou?请（你）让我们留在这好吗？一.用括号内所给动词的合适形式填空。
1.It’s an important meeting. _________________ (not, be )late.2.________________ (not,make) any nise! 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 belike.8.________________ (not, let) the baby cry.9.Wear more clothes or you ____________ (catch) a cold.10.Let’s _______________ (not, say) anythingabout it.二、单项选择1. The TV is too loud. Please________.A. turn it downB. to turn it downC. turn down itD. to turn down it2. _______ late again, Bill!A. Don“t to beB. Don“t beC. Not beD. Be not3. _______ cross the road until the traffic lights turn green.A. NotB. Won“tC. Doesn“tD.Don“t4. Please help me carry it, ______?A. will IB. will youC. shall ID. shall we5. Don“t make so much noise, ______?A.will youB. won“t youC. shall weD.do you6. Do you know the girl ______under the tree?A. standB. to standC. standingD. stood7. Kate, _______ your homework here tomorrow.A. bringB. bringsC. to bringD. bringing8. ________ me the truth, or I“ll be angry.A. TellingB. To tellC. ToldD. Tell9. I“ve kept the dog _______Maomao for a long time.A. NameB. namedC. namingD. to name10. Don“t you know that _______ is good for our health?A. swimB. swimmingC. swamD. swims11 .Her doctor said:“________ work so hard”A StopB Don’tC Can’tD No12. Sindy, ________ to be here at 8 o’clockA is sureB is sure thatC will be sureD be sure13.________ when you cross the road.A Do careB CareC Do be carefulD To be careful14. ________him the secret, will you?A Don’t tellB Not to tellC Not tellingD No telling15. ________ in bed. It’s bad for your eyes.A Not to readB Don’t readC Don’t t o readD Not read16. ________ Your child. We’ll look after him.A Not to worry aboutB Don’t worry aboutC Not worry forD Don’t worry with17.They are very tired. Why ________ have a rest?A not theyB do not theyC don’t theyD not to18 --You look rather tired. ________ stopping to have a rest?-- All right.A Why notB How aboutC Why not toD why don’t19 ______ tell a lie.A HardlyB NotC NoD Never20.Please ________ look outside. Look at the blackboard.A notB don’tC aren’tD can’t三、句型转换1. Will you please read it again more slowly?（改为祈使句）_______________ again more slowly, please.2. If you don“t listen to me, I“ll go.（改为同义句）________________me, or I’ll go.3. Let“s watch the sports games.（改为反意疑问句）Let“s watch the sports games, ____________?4. The teachers often tell the students not to be careless.（改为祈使句）______________careless, please.5. Please sit next to Nancy.（改为否定句）______________ next to Nancy.6. Don“t forget to turn off the lights, please.（改为反意疑问句）Don“t forget to turn off the lights, ______________?7. If you move, you“ll die.（改为同义句）_____________, or you“ll die.8. Come to my house tomorrow.（改为反意疑问句）Come to my house tomorrow, ______________?9.这是一个坏了的被子。
（翻译句子）This is a ________________.10.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.四、将下列汉语翻译成英语。