unit4 Don27t eat in class 初中英语——祈使句.doc

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1、初中英语――祈使句祈使句常常是表达说话人对对方的劝告、叮嘱、请求或命令等。因此，祈使句中一般没有主语，但根据其句意，实际上是省略了主语you。祈使句句末用感叹号或句号，朗读时，常用降调。在表达请求或劝告时，在祈使句前或句末可加上please，以使句子的语气更加缓和或客气。1.肯定的祈使句（1）Do型祈使句：实义动词原形+其他Standup,please.=Pleasestandup.请起立。请打扫教室.___________________________（2）Be型祈使句：Be+adj.Becareful!=Lookout!=Takeca

2、re!小心/当心！请安静._______________________（3）Let's+动词原形Let’sgotoschooltogether.咱们一起上学去吧。咱们一起打篮球吧.______________________(4)No型祈使句：No+v-ing/名词（表禁止）eg:Nosmoking!Nophotos!禁止说话！_________________禁止停车！________________2.否定的祈使句(1)Don't+动词原形Don'tstandup.别站起来。Don'tbecareless.别粗心。Don'tletth

3、emplaywithfire.别让他们玩火。请不要在教室里打篮球!______________________________________（2）Let's(letsb)+not+动词原形Let'snotsayanythingaboutit.对于这件事，咱们什么也别说。Letthemnotplaywithfire.别让他们玩火。别让他们打架._______________________________must“必须”（强调主观意志）；没有人称和数的变化；否定：mustn’t“不准”你必须今天完成家庭作业.________________

4、_______.你禁止在课堂上说话._______________MustIcleantheclassroom?No,__________________/_________________________haveto“必须”（强调客观因素）三人称用：hasto;否定：don’t/doesn’thaveto他得走了。___________________我们没必要周末上课.____________________________语法练兵场1._______listentomusicintheclassroom.A.NotB.NoC.Don’

5、t2._______lateagain,Bill!A.Don'ttobeB.Don'tbeC.NotbeD.Benot3._______crosstheroaduntilthetrafficlightsturngreen.A.NotB.Won'tC.Doesn'tD.Don't4.Kate,_______yourhomeworkheretomorrow.A.bringB.bringsC.tobringD.bringing5.________methetruth,orI'llbeangry.A.TellingB.TotellC.ToldD.T

6、ell6.Shehasto__________herhomeworkeverynight.A.doesBdoC.doing7.Sorry,you_____playbasketballintheclassroom.Acan’tBmustCdon’t8.Let’s_____ontimeforclasses.AbeBbenotCare句型转换1.Theteachersoftentellthestudentsnottobecareless.（改为祈使句）__________careless,please.2.PleasesitnexttoNancy

7、.（改为否定句）__________nexttoNancy.3.Jackhastoplaythepianoeveryweekend.(改为一般疑问句)_________________________________4.Bequick!(改为否定句)______________________________5.Youcan’teatfoodinclass.(改为祈使句)____________________________6.Youmustwalktoschooltoday.(改为祈使句)________________________

8、____7.Youcan’tbelateforclassnexttime.(改为祈使句)___________________________Unit4.Don’teatincl