1、单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 4 Dont eat in class,4.1,祈使句的简单用法,祈使句面面观,一、含义,祈使句指的是表示命令、请求、建议,、,劝说,、,号召,、,警告的句子。祈使句常省略,主语,you,，以动词原形开头，有时可在句首或句尾加,please,表示客气语气。祈使句可分为肯定祈使句和否定祈使句。,记住“,VBLD”,正确使用,祈使句,记住“,VBLD”,正确使用祈使句,1.,“V”,结构,(,动态句,),行为动词原形,V.+,宾语,+,其他,.,Come,in,please,.,Stand up!,O
2、pen your books.,Put up your hand(s),please.,Please sit down.,记住“,VBLD”,正确使用祈使句,2.,“B”,结构,(,静态句,),Be+,表语,(,名词,形容词,)+,其他,.,Be careful!,Be quiet!,Be a good student.,记住“,VBLD”,正确使用祈使句,3,.“L”,结构,(,使役句,),Let+,人称代词宾格,+V.,原形,+,其他,.,表示一种建议,.,用于第一,三人称,.,Let me help you.,Let us have a rest.,Lets go out for a w
3、alk.,Lets clean the classroom.,Let the boy come in.,记住“,VBLD”,正确使用祈使句,4.“D”,结构,(,否定句,),Dont+,祈使句,.,Dont be late for school.,Dont open the window.,特殊：,.,1.Let,型的否定式有两种,:Dont+let+,宾语,+,动词原形,+,其它成分,;,和,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。,2.,有些可用,no,开头,用来表示禁止性的祈使句。,如,:No
4、 smoking!,禁止吸烟,!,No fishing!,禁止钓鱼,!,Dont listen to music.,改,否,定句,:,Open your books,Dont Open your books,改,肯,定句：,Dont talk to your,friends,Alice,Talk to your,friends,Alice,改,否,定句,:,Listen to music.,唱反调：（,Lets write),答疑解惑,Lets write the rules of the school,1.(listen)to the teacher carefully.,2.Dont (b
5、e)late for class.,3.Dont (talk)in class.,4.Dont (eat)in class.,5.Dont (run)in the hallways,Listen,be,talk,eat,run,练习：将下列汉语翻译成英语。,1.,请坐下。,_.,2.,让我们去学校吧,!_!,3.,亲爱的,高兴点儿,!_!,4.,不要把书放这儿。,_.,5.,不要让猫进来。,_.,1.Please sit down.,2.Lets go to school.,3.Be happy,dear.,4.Dont put the book here.,5.Dont let the cat come in/Let the cat not come in.,
浙ICP备2021020529号-1 | 浙B2-20240490 
