江苏省东海县横沟中学八年级英语上册 Unit 4 Do it yourself Period 3学案（无答案）（新版）牛津版.doc

do it yourself period3一、【学习目标】1.理解什么是祈使句。2.掌握祈使句的肯定和否定两种形式。3.牢记祈使句中出现的一些特殊情况。4.学会用should 和had better 来提出建议。 二、【学习重难点】 1.祈使句肯定和否定两种形式的应用.2.祈使句中出现的一些特殊情况及其应用。三、【自主学习】翻译下列短语和句子1. on the other side of_2. put up a picture on the wall_3. dont paint the cat._4. please fix the shelf for me._ _5. dont touch the wet paint, please._6. you should know a little about diy._ _7. you should not put so many books on the shelf._8.your watch is broken. you had better buy a new one._9. you had better not be late for school._四、【合作 探究】任务（一）向学生展示四句常见的祈使句：be quiet, please.no smoking ,please. no parking！keep off the grass.让学生发现规律，并告诉学生祈使句的含义：祈使句( imperative sentence）表命令、请求、劝告、警告、禁止等。祈使句常用于表达命令。作用为：要求、起码、请求或命令、劝告、叮嘱、建议别人做或不做一件事。 祈使句因对象（即主语）是第二人称，所以通常主语被省略。谓语动词用原形，句末则使用感叹号或句号,读降调。 任务（二）给学生记忆口诀：v 表示请求或命令，加上please表客气。v 如果变成否定句，dont开头是定律。v no talking是警示，祈使用法要牢记。任务（三）肯定的祈使句句型:v do型 v原形（+宾语）+其他成分如：please have a seat here.请这边坐有的祈使句在意思明确的情况下，动词可省略。如：this way , please=go this way , please请这边走有时为了加强语气，可以在动词之前加do表示“务必，一定”。do come on time!do look out!v be型 be+表语（n或adj）+其他成分如：be a good boy!要做一个好孩子v let型 let +宾语+v原形+其他成分如：let me help you 让我来帮你任务（四）否定的祈使句1、do型和be型的否定式都在句首加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（1）dont +let +宾语(第3人称)+v原形+其他成分如： dont let him go（2）let +宾语(第3人称)+not +v原形+其他成分如： let him not go.任务（五）祈使句中需要注意的一些情况1、有时为了表示委婉语气，可在句首或句尾加上please,但please加在句尾时，前面要用逗号隔开。 please sit down. stand up ,please.2、在意思较为明显的情况下可一把谓语动词省去。 this way ,please.任务（六）.should 和had better 当提出建议及告诉人们我们认为什么是最好的或该做什么事是正确的时候，我们使用 should 和had better. had better 比should 的语气更强烈。、【达标巩固】一、单项选择。1.please _, they are having a meeting.a. not be so noisy b. be quietc. mustnt talk d. no speaking2. to meet me at the station. ill be waiting there.a. not to forget b. not forgetc. forget not d. dont forget3._ your book, lucy. you mustnt look at the answer.a. close b. closesc. not close d. is closing单项选择( )1.his computer doesnt work. so he bought a new_ a.it b.one c.them d.another( )2.can you help me with the bike? -sorry , it_, “do it your self” a.speaks b.talks c.tells d.says( )3.he always _the instructions on the bottle. a.reads b.looks at c.watches d.sees( )4.-shall we talk about it in english? -_? lets do it right away. a.why not b.will we c.are you d.do we ( )5.-can you help me repair my bike? - _.i am coming. a.of course not b.thank you c.no problem d.you are welcome( )6.the room is _with lots of people. a.fill b.filled c.full d.fulled( )7.his father advised me _it again. a.try b.trying c.to trying d.to try( )8.the sound made the film _. i am afraid of watching it. a.terrible b.terribly c.happy d.happily( )9.you had better_talk in class without permission. a.not b.dont c.no d./( )10.the english word “survive”_”stay alive”. a.stands b.stands for c.instead of d.tidy up( )11.i tried to think it hard, but i failed _the question. a.to answer b.answer c.answering d.to answering( )12._and help me clean the house. a.get up b.getting up c.to get up d.to getting( )13.you_tell him the result right away. a.should not b.should not to c.should to not d.not should( )14.its raining. youd better sto