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1、,祈使句,By Sally,Go and wash your hands.（去洗你的手。命令）Be quiet,please.（Please be quiet.）（请安静。请求）Be kind to our sister.（对姊妹要和善。劝告）Watch your steps.（走路小心。警告）(禁止乱扔垃圾。禁止),让我们来看看各种情感的祈使句,No littering.,Turn left!,Guessing Game,Turn right!,Guessing Game,Be quiet,please.,Go upstairs!,Guessing Game,Guessing Game,Go
2、 downstairs!,Let me help you.,Guessing Game,Dont smoke!No smoking!,Guessing Game,Dont play football!,Guessing Game,Dont park your car!,Guessing Game,Dont eat!,Guessing Game,Dont pick the flowers!,Dont sleep in class,Read and observe(观察),Turn left!,Turn right!,Please go upstairs!,Go downstairs!Keep o
3、ff the grass.Let me help you.,Be quiet,please.,Dont smoke!,Dont play football!,Dont park your car!,Please dont eat!,Dont pick the flowers!Dont sleep in class.,肯定结构:1.Do型(即:动词原形(+宾语)+其它成分)。如:Please have a seat here.=Have a seat here,please.请这边坐。有的祈使句在意思明确的情况下,动词可省略。如:This way,please.=Go this way,plea
4、se.请这边走。2.Be型(即:Be+表语(名词或形容词)+其它成分)。如:Be a good boy!要做一个好孩子!3.Let型(即:Let+宾语+动词原形+其它成分)。如:Let me help you.让我来帮你。,表现形式,否定结构:1.Do型和Be型的否定式都是在句首加dont构成。如:Dont forget me!不要忘记我!Dont be late for school!上学不要迟到!2.Let型的否定式有两种:“Dont+let+宾语+动词原形+其它成分”“Let+宾语+not+动词原形+其它成分”。如:Dont let him go./Let him not go.别让他走
5、。3.有些可用no开头,用来表示禁止性的祈使句。如:No smoking!禁止吸烟!No fishing!禁止钓鱼!,表现形式,祈使句用法口诀,祈使句，无主语，只要动词就可以；表示请求或命令，加上please表客气；如果变成否定句，Dont开头是旋律；NO talking！是警示，祈使用法要牢记！,牢记，牢记，再牢记,轻松小练习,1.咱们一起玩吧2.请不要迟到.3.回答这个问题.4.请保持安静。5.不要让我走！,Lets play together!Dont be late.3.Answer this question.4.Keep silent,please.5.Dont let me go
6、!,祈使句结构如下：,Summary,肯定：1.Do型(即:动词原形(+宾语)+其它成分)。2.Be型(即:Be+表语(名词或形容词)+其它成分)3.Let型(即:Let+宾语+动词原形+其它成分)。,否定：1.Do型和Be型的否定式都是在句首加dont构成。2.Let型的否定式有两种:“Dont+let+宾语+动词原形+其它成分”“Let+宾语+not+动词原形+其它成分”。3.有些可用no开头,用来表示禁止性的祈使句。,Translate the sentences into English,请照看好您的包.Please look after your bag。让我们去学校吧！Lets g
7、o to school不要把书放这儿Dont put the book here,1.Jim,_ me a hand.A.gives B.is giving C.will give D.give2._ careful,Jenny!There is a tree in front of you.A.Am B./C.Be D.Was3.Lets _ our time.A.not waste B.no wasting C.not to waste D.no waste4._ higher,and you will see the house.OK.A.If you stand B.To stand
8、C.When you stand D.Stand,Exercises:,5.Please _ do it.A.he B.let him C.let he D.him6._ let anyone open the door.A.Dont B.Will C.Not D.No7.Dont be late again.Sorry,_.A.I may B.I must C.I will D.I wont8.Call me when you get home.OK,_.A.I must B.I can C.I will D.I may,Exercises:,Giving orders/instructio
9、ns,祈使句:是表示请求、命令、建议等句子，通常说话的对象是第二人称you,you常被省略。祈使句常见题型：1.Lets+（not）动词原形 Eg.Lets go home together./lets not talk in the class.2.lets,shall we?3.Let sb.,will you?4.祈使句，will you?,反意疑问句,Lets do more exercises.,1.Call me when you get home.OK,_.A.I must B.I can C.I will D.I may2.Jim,_ me a hand.A.gives B.i
10、s giving C.give D.will give3.Let me _ on duty today.A.am B./C.be D.do4.Lets _ our time.A.not waste B.no wasting C.not to waste D.no waste5._ higher,and you will see the house.OK.A.If you stand B.To stand C.When you stand D.Stand,C,C,C,A,D,Choose the correct answer.,6._ forget to write to me when you
11、 _ get there next Tuesday.A.Dont;will B.Please;will C.Please;/D.Dont;/7.Please _ do it.A.he B.he let C.let him D.him8._ come in,please.A.Will B.Do C.Wont D.Did9._ careful!A.Be do B.Do be C.Not D.Not do10._ let anyone open the door.A.Dont B.Will C.Not D.No,D,C,B,B,A,11.Let John finish the work all by
12、 himself,_?A.shall we B.will you C.do you D.do we12.-Lets go home,shall we?-_.A.Thats right.B.Thats all C.Thats all right D.All right13.Please turn on the light,_?A.are you B.shall we C.shall I D.will you14.Dont tell him the fact now,_?A.shall we B.shall you C.will you D.do you15.Let the children no
13、t make so much noise,_?A.shall we B.will you C.shall I D.do you,B,D,D,C,B,16._ 6 and 4,and you will get ten.A.Added B.Adding C.To add D.Add17._ late again,or Ill report it to your father.A.Dont be B.You arent C.Cant be D.Arent 18.Dont interrupt her when she is speaking,_?A.wont you B.will you C.shal
14、l we D.shant we19._ get off the lorry until it stops.A.Do B.Cant C./D.Dont20.Lets not begin our supper until father comes back,_?A.will you B.wont you C.shall we D.shant we,D,A,B,D,C,on the road,in class,in the dining room,in class,1.Be quiet.2.Take notes.3.Listen to the teacher carefully.4.Dont eat in class.,on the road,Walk on the zebra crossing.2.Be careful.3.Dont play football.4.Dont run fast.,in the restaurant,Line up.2.Dont push.3.Dont make noise.4.Dont waste food.,
