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Lesson29Comein,Amy.Thisbedroom'sveryuntidy.WhatmustIdo?12345OpenthewindowandairtheroomputtheclothesinthewardrobemakethebeddustthedressingtablesweeptheflooropenthewindowairtheroomputtheseclothesinthewardrobemakethebeddustthedressingtablesweepthefloorComein,please.Shutthedoor,please.Openthewindow.Airtheroom.Puttheclothesinthewardrobe.Makethebed.Dustthedressingtable.Sweepthefloor.一、祈使句的定义用于表示命令、请求、劝告、警告、禁止等的句子叫做祈使句。二、祈使句的构成祈使句是由动词原形开头，可以在句首或句末加please,在句尾加please时，please前要加“，”祈使句的句末用感叹号或句号，朗读时用降调。Don’tshutthedoor,please.Don’topenthewindow.Don’tairtheroom.Don’tputtheclothesinthewardrobe.Don’tmakethebed.Don’tdustthedressingtable.Don’tsweepthefloor.祈使句的构成：祈使句的肯定形式是由动词原形开头，否定形式是在动词原形之前加don’t。Lesson30WhatmustIdo?我应该做什么？OpenShutyour{handbagbookTurnonTurnoffthe{lightTVPutonTakeoffyour{clothesshoesSweepthe{floorkitchenCleanthe{carwindowDustthe{dressingtabletableEmptythe{cupbottleReadthis{newspapermagazineSharpenthesepencils对划线部分提问•1.Imustmakethebed.•Whatmustyoudo?•2.Youmustemptythebasket.•Whatmustyoudo?