2023学年完整公开课版祈使句 微课

祈使句

玉林市玉州区第一实验初级中学唐湘燕2020年玉林市中小学、幼儿园微课大赛初中英语人教版七下Unit4

Whatschoolrulesdoyouhave?Don'tbelateforclass.Don'truninthehallways.

Whatschoolrulesdoyouhave?Don'teatintheclassroom.Don'tlistentomusicinclass.祈使句（Imperativesentences）

用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句，祈使句最常用于表达命令。其主语一般是第二人称，但通常省略主语，谓语动词用原形，如：

*Bequiet,please.(Pleasebequiet.)(表请求)*Bekindtoourlittlebrother.(表劝告)*Goandwashyourclothes.(表命令)*Nosmoking!(表禁止)*Lookout!Danger!(表警告)肯定结构(Positiveforms)1.Do型(即:动词原形<+宾语>+其它成分)Pleasehaveaseathere.=Haveaseathere,please.有的祈使句在意思明确的情况下,动词可省略。如:Thisway,please.=Gothisway,please.2.Be型(即:Be+表语<名词或形容词>+其它成分)Beagoodgirl!3.Let型(即:Let+宾语+动词原形+其它成分)。Letmehelpyou.否定结构(Negativeforms)1.Do型和Be型的否定式都是在句首加don’t构成Don'tbelateforschool!Don'truninthehallways!2.Let型的否定式有两种:①Don’t+let+宾语+动词原形+其它成分②Let+宾语+not+动词原形+其它成分Don’tlethimgo=Lethimnotgo.

3.有些可用No开头,用来表示禁止性的祈使句。No+n/doing+其他成分Nosmoking!禁止吸烟！Noparking!禁止停车！Exercises:一.单项选择.1.Jim,_____meahand.A.givesB.isgivingC.willgiveD.give2.____careful,Jenny!Thereisatreeinfrontofyou.A.AmB./C.BeD.Was3.Let's____ourtime.A.notwasteB.nowastingC.nottowasteD.nowaste4.—____higher,andyouwillseethehouse.

—OK.A.IfyoustandB.TostandC.WhenyoustandD.StandExercises:

二、根据句意用括号内所给单词的适当形式填空。1.

（be）quietinthelibrary.

2.（notrun）inthebusystreet.3.

（remember）tobringyournotebook.4.Let's

（play）soccerafterschool.5.No

（swim)!

BeDon'trunRememberplayswimmingSummaryDo型，即以行为动词原形开头Please型，即以please开头Be型，即以动词be开头Let型，即以动词let开头Don't+动词原形+其他Don't+let+宾