公开课人教版七年级下册unit4祈使句课件

ImperativeSentenceImperativeSentence1FreetalkWhatcanwedoatschoolorintheclassroom?Whatcan’twedo?How

tobeagoodstudent?FreetalkWhatcanwedoatsch2Don'teatinclass.Don'tarrivelateforclassDon'tsleepinclass.Don'tdrawonthewall.Don'ttalk.Don'tplaysportsintheclassroom.Don'tfight.Don'tlistentomusicinclass.schoolrulesDon't...ReviewDon'teatDon'tarriveDon'ts3

祈使句是表示请求、命令、建议或劝告等的句子。一.祈使句的概念ImperativeSentence祈使句是表示请求、命令、建议或劝告等的句子。一4二.祈使句的特点Wecleantheclassroomeveryday.

Heusuallygoestothelibraryonweekends.2.谓语动词一律用原形。1.主语通常为you,但常省略。3.句末根据语气的强弱用感叹号或句号。Don'tarrivelateforclass.Sitdown,please!二.祈使句的特点Wecleantheclassroom5Ms.ChensaysCleantheblackboard.Standup!Sitdown,please!

Pleaseopenthedoor.TurntoPage21.Listentomecarefully.Game:Isay,youdoMs.ChensaysCleantheblackbo6Readandobserve(观察)Clean

theblackboard.Standup!Listentomecarefully.TurntoPage21.Sitdown,please!Pleaseopenthedoor.

Don'tbelateforclass.Don'teatintheclassroom.Don'truninthehallways.Don'tfight.Don'tsleepinclass.Don'twearahatinclass.positivenegativeReadandobserve(观察)Cleanthe7Drawtheconclusion(得出结论)祈使句的结构如下：

(Please)+Dosth.

(Please)+Don’tdosth.肯定：否定：Drawtheconclusion(得出结论)祈使句的8注意：有时可在祈使句的句首或句尾加上please，使语气显得客气、有礼貌。如果在句尾加please，应该用逗号与前句隔开。e.g.Gothisway,please.请这边走。

Pleasegothisway.注意：9三.祈使句的形式1.祈使句的肯定式(1).以行为动词原形开头，简称Do型。e.g.Comehere.(2).以动词be开头，简称Be型。e.g.Bequiet,please.

Bekindtoyourclassmates.(3).以Let开头，简称Let型。e.g.Let’sgo!

Let'splaybasketballafterschool.

“三姐妹”三.祈使句的形式1.祈使句的肯定式(1).以行为动词原形开10Turnright!Turnleft!Bequiet.Goupstairs！Godownstairs!signsTurnright!Turnleft!Bequiet.112.祈使句的否定式(1).Do型和Be型的否定式是在句首加don’t。e.g.Don’tsithere.不要坐在这儿。

Don’tbelate.别迟到。(2).以let开头的祈使句，其否定式有两种：一种是直接在句首加don’t，另一种是“let+宾语+not+动词原形+(其他)”。e.g.Don’tlethimgo.不要让他走。Let’snotgothere.咱们别去那儿。“三兄弟”2.祈使句的否定式(1).Do型和Be型的否定式是在句首加12注意：(3)“No+名词/动词-ing形式”表示禁止或规劝，常用于公共场所。e.g.Nophotos!禁止拍照！

Noswimming！

禁止游泳！注意：13GuessingGameDon’tparkyourcar.Don’tsmoke!Noparking!Nosmoking!GuessingGameDon’tparkyourc14GuessingGameDon’ttakephotos!Don’tswimhere!Nophotos!Noswimming!GuessingGameDon’ttakephotos15LibraryRulesDon’ttalk.________________________________________________Writetherulesfortheschoollibrary.Don’tlistentomusic.Don’teatordrink.Don’ttakephotos.方法指导：1.由图示可知都是一些禁止类的祈使句。2.可知应用祈使句的否定形式。Task1:LibraryRulesWritetherulesf16Ifyouaretheheadteacher(班主任),discussandmakerulesforourclass.

Seewhichgroupcansaythemostclassrules.RulesofClass11_____________________________________________________________________________...PKTask2Ifyouaretheheadteacher(班主任17ReportRulesofCass11_______________________________________________________________________________________________________________________________________________________________________________...Don'tbelateforclass.Don’teatordrinkintheclassroom.Don’truninthehallways.Wearschooluniformsonschooldays.Cleantheclassroomeveryday.ReportRulesofCass11Don'tbe18祈使句的用法主语是you常省去，动词原形开头记。否定形式要注意，句首要把don’t加。要讲客气用please，

句首、句末没关系。SummaryBeagoodstudent.祈使句的用法主语是you常省去，动词原形开头记。Summar19公开课人教版七年级下册unit4祈使句ppt课件20HomeworkTrytowritedownatleastfive

sentencesaboutyourfamilyrules.HomeworkTrytowritedownatl211.Don’twaste(浪费)water.7.Don’treadinbed.2.Makethebedeveryday.3.Washyourha