小升初英语总复习 第三章 句型 第四节 祈使句课件

第三章第三章 句句 型型第四节第四节 祈使句祈使句 知识梳理知识梳理一、祈使句的概念祈使句是用于表达命令、请求、劝告、警告、禁止等的句子。祈使句因对象(主语)是第二人称，通常省略主语。祈使句的时态都为一般现在时，句末可以用感叹号来表达比较强烈的语气，也可以用句点结尾。如：命令：Go and wash your hands！请求：Be quiet, please. / Please be quiet. 劝告：Be kind to your friends. 警告：Watch your steps. 禁止：Keep off the grass！ 二、祈使句的结构1. 动词原形+其他成分。如：Sit down, please.【注】有的祈使句在意思明确的情况下，可省略动词。如: Go this way, please. =This way, please.2. Be+名词短语或形容词+其他成分。如：Be careful!Be a good boy!3. Let+宾语+动词原形+其他成分。如: Let me help you.Lets clean our classroom. 【注】有时为了加强语气，可在动词之前加do。如：Do be careful! Do let Mary water the flowers. 三、祈使句的否定形式1 以动词原形和be 动词开头的祈使句，都是在句首加dont。如: Dont forget me! Dont be late for school! 2 let开头的祈使句的否定形式有两种：（1）Dont+let+宾语+动词原形+其他成分。（2）Let+宾语+not+动词原形+其他成分。如: Dont let him go. =Let him not go.3. No开头的祈使句表示禁止。如: No smoking!四、祈使句的反义疑问句形式1 一般情况下，简略问句用will you或 wont you。如：Have a rest, will you? Stand up, will(wont) you? 2. lets开头的祈使句，表示说话人向对方提出建议时，简略问句用shall we。如：Lets have a cup of tea, shall we?3. let me或 let us表示向听话人提出请求，简略问句用will you。如：Let me have a rest, will you? Let us know your name, will you? 考点精析考点精析考点考点 考查祈使句的运用考查祈使句的运用【例1】给下列标志选择适当的标志语。（填字母编号） 1. _ 2. _ 3. _ 解析：本题考查根据图片选择适当的祈使句。祈使句最常见的用法就是用在警示牌上。本题三个选项代表三种祈使句形式。答案：1. C 2. B 3. A【例2】根据所提供的场景写出正确的祈使句。 1. 有几个孩子在马路上踢足球，你会对他们说：_2. 有小朋友在无人监管的河里游泳，你会对他们说：_ 解析：本题考查祈使句的日常用法。注意口语表达的时候，禁止类祈使句多用Dont 形式。答案： 1. Dont play football on the road. 2. Dont swim in the river. 举一反三 1. 判断下列句子是否是祈使句， 是的打“ ”，不是的打“”。 (1) Look out！( ) (2) How nice！( ) (3) Lets go hiking.( ) (4) What a lovely girl！( ) (5) Wash your hands before meals.( ) 2. 将下列句子改为祈使句。 (1) You must not look out of the window. _ the window. (2) You may let the children play the piano. _ play the piano. (3) You shouldnt drive too fast. _ too fast. Dont driveDont look out ofLet the children3. 根据所提供的场景写出正确的祈使句。(1) 邀请朋友做客，你想请他吃苹果，你会说： _ (2) 你想邀请朋友一起下棋，你会说： _ (3) 你让一个想要进入草坪的小朋友别践踏草坪，你会说： _ Keep off the grass.Have an apple， please！Lets play chess together.过关检测过关检测一、看图，根据图片选出相应的祈使句。（填字母编号）1. _ 2. _ 3. _ 4. _ 5. _CAEBD二、将下列句子改为祈使句。1. You mustnt play on the road._2. You cant eat in the computer room._3. You must stop at a red light. _4. You mustnt be late for school. _5. Everyone mustnt smoke here. _Dont play on the road!Dont eat in the computer room!Stop (Do stop) at a red light!Dont be late for school!Dont smoke here. /No smoking here!三、单项填空。( )1. If you are tired, _a rest. A. have B. having C. to have( )2. He is not honest(诚实). _ believe him. A. Not B. Dont C. Do( )3. _ in the street. Its dangerous. A. Not play B. Not to play C. Dont play( )4. Please_ me some money, will you? A. lend B. lending C. be lend( )5. _ the boxes. You may use them later. A. Keep B. Keeping C. To keepABCAA四、根据汉语意思翻译下列句子。1.请打开门。_2.不要跑那么快!_3.下次别迟到!_4.不要坐在书包上。_5.请看黑板。_Please open the door.Dont run so fast!Dont be late next time!Dont sit on the schoolbag.Please look at the blackboard.