1、初中英语祈使句Be happy!Be quiet, please. Wash your hands. clap your handsMatching GameBe happy!Be quiet, please. Wash your hands. clap your handsMatching Game一、祈使句1、祈使句的概念祈使句是用来表示请求、命令、叮嘱、邀请、劝告或祝愿等的句子。Go and wash your hands. (表命令)Be quiet, please. (Please be quiet.)(表请求)Be kind to your sister.(表劝告) Watch y
2、our steps.(表警告)No parking. (表禁止)2、祈使句的特点祈使句通常省略主语you,以动词原形开头,末尾可用句号或感叹号。Go and wash your hands. (表命令)Be quiet, please. (Please be quiet.)(表请求)祈使句没有疑问句的形式,一般只有肯定和否定两种形式。1、安静点/快点。 Be _/_.2、做一个好学生!3、过街的时候要小心。 Be _when crossing the street.二、祈使句的肯定形式以系动词be开头的祈使句,这种祈使句的常用结构:be+形容词 / 名词Be quiet / quick! Be
3、 a good student!Be careful when crossing the street.1、请进!2、请打开你的书!3、请把它们收起来!2-2 以实义动词开头的祈使句,这种祈使句的常用结构为:动词原形+宾语(+其他)Come in, please! Please open your books!Put them away!二、祈使句的肯定形式Know-point 21、让我帮助你吧。 2、我们去公园吧。Let _.Translate those sentences2-3 let型(let+宾语+动词原形+其他)Let me help you.Lets go to the par
4、k.二、祈使句的肯定形式把下列句子变成否定句Be careless! Be late again next time!3-1 be型A. Dont be +其他成分(形容词、名词或介词短语)Dont be careless! Dont be late again next time!三、祈使句的否定形式Know-point 33-1 be型B. 用否定副词never来表示 Never be careless!Never be late again next time! 注意: 在这种两种句型中,be不能省略 not不可置于be之后三、祈使句的否定形式把下列句子变成否定句Believe him!
5、 Open the door! 3-2 do型A. Dont +动词原形+其他Dont believe him! Dont open the door! B. 用否定副词never来表示Never believe him!Never open the door!三、祈使句的否定形式1、让她不要做那件事。2、让他不要想这件事。3-3 Let型 A. Let+宾语+not+动词原形+其他Let her not do that.让她不要做那件事。Let him not think about it. 让他不要想这件事。三、祈使句的否定形式1、不要让他做那件事。2、请不要让我们走。3-3 Let型 B
6、. Dont+ let+宾语+动词原形+其他Dont let Jim do that.不要让他做那件事。Dont let us go, please. 请不要让我们走。三、祈使句的否定形式What do the signs mean?3-4 在公共场合的提示语中,否定祈使句常用“No名词 / 动名词(V-ing形式 )”结构,表示“禁止做某事”。例如:三、祈使句的否定形式No photos!No parking! No Smoking还有哪些常见的标语呢?4、祈使句的其它用法(*)4-1 在表达请求或劝告时,有时为了表示委婉的语气,可以在句首或句末please,但是如果please加在句末,应
7、用逗号将其与前面的部分隔开。Sit down, please.Please look after the twins.4-2 在意思比较明显的情况下,可以把谓语动词省略。This way, please.4-3 有时为了加强语气,可以在动词前使用do.Do be careful!一定要小心!4-4 有时为了强调对方,也可加上主语you,人名或everybody, anybody等不定代词。You sweep the floor and I clean the window.Stand up, everybody.4-5 有时为了明确向谁提出请求或发出命令,可加称呼语,但称呼语要与句子用逗号隔开
8、。Put the shirt on the bed, Jim.1. Its an important meeting. _(not, be) late.1. Its an important meeting. _(not, be) late. Dont be1. Its an important meeting. _ (not, be) late.2. _Dont make_ (not, make) any noise! 3. _ (look) out! A car is coming.3. _Look_ (look) out! A car is coming. 4. _ (not, let) the baby cry.4. _Dont let_ (not, let) the baby cry. 5. Lets _ (not, say) anything about it.5. Lets _not say_ (not, say) anything about it.