1、去洗你的手请开门。我们去电影院吧左转请安静请坐下肯定祈使句的结构如下：肯定祈使句的结构如下：Do(动词原形动词原形)sth,please.不要洗你的手请不要开门。不要左转不要安静不要坐下否定祈使句的结构如下：否定祈使句的结构如下：Dont do sth.肯定结构:1.Do型(即:动词原形(+宾语)+其它成分)。如:Please have a seat here.请这边坐。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。6PPT课件 否定结
2、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”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。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!7PPT课件 祈使句，无主语，只要动词就可以；祈使句，无主语，只要动词就可以；表示请求或命令，加上表示请求或命令，加上pl
3、easeplease表客气；表客气；如果变成否定句，如果变成否定句，DontDont开头是旋律；开头是旋律；NO talking NO talking ！是警示，祈使用法要！是警示，祈使用法要牢记！牢记！8PPT课件轻松小练习1.咱们一起玩吧2.请不要迟到.3.回答这个问题.4.打开窗户1.Lets play together!2.Dont be late.3.Answer this question.4.Open the window 9PPT课件Turn left!Guessing Game10PPT课件Turn right!Guessing Game11PPT课件Guessing Gam
4、eDont smoke!No smoking!12PPT课件Guessing GameDont play football!13PPT课件Guessing GameDont park your car!14PPT课件Guessing GameDont eat!15PPT课件Guessing GameDont pick the flowers!16PPT课件 Go upstairs!Guessing Game17PPT课件Guessing Game Go downstairs!18PPT课件第一关：第一关：Lets Read Dont throw things at the monkeys.Do
5、nt feed the animals.Dont walk on the grass.Dont take photographs here.Dont leave litter.19PPT课件第二关第二关Lets Say You cant sleep on the desk.Dont _ on the _.You cant climb trees in the park.Dont _.You cant sit on the grass._.sleepdeskclimb trees in the parkDont sit on the grass20PPT课件第三关第三关 Lets WritePl
6、acesRuleslibraryDont take the books away.schoolparkzoocinema21PPT课件第四关 Play a game:Look and guess22PPT课件No smoking23PPT课件Dont touch24PPT课件Dont eat./Dont drink.25PPT课件No parking26PPT课件Be quiet27PPT课件Lets do exercise.28PPT课件1.Jim,_ me a hand.A.gives B.is giving C.will give D.give2._ careful,Jenny!Ther
7、e 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 C.When you stand D.Stand29PPT课件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.No30PPT课件Lets do more exercises.31PPT课件1._ forget to write to me.A.Dont B.Please 2._ careful!A.Be do B.Be C.Not D.Not do3._ let anyone open the door.A.Dont B.Will C.Not D.NoBBA4._ get off the lorry until it stops.A.Do B.Cant C./D.Dont32PPT课件
