Lesson29Comein,Amy!1.Areyoualazy(懒惰的)kid?2.Howdoyoucleanyourbedroom?3.WhatmustIdoifIwanttocleanmybedroom?HowmustAmycleanthefloor?untidyThisbedroom'sveryuntidy.WhatmustIdo?Openthewindowandairtheroom.1puttheclothesinthewardrobe2makethebed3dustthedressingtable4sweepthefloor5Thisbedroom'sveryuntidy.Thisbedroom'sverycleanopenthewindowairtheroomputtheclothesinthewardomakethebeddustthedressingtablesweepthefloormust的用法：1、must是情态动词。2、表示必须，不得不做的事情。同时也可以表示不可推卸的责任。3、must后面要加动词原型。mustdo（sth）Lesson29Comein,Amy.Mrs.Jones:Comein,Amy.Shutthedoor,please.Thisbedroom’sveryuntidy.Amy:WhatmustIdo,Mrs.Jones?Mrs.Jones:1.Openthewindowandairtheroom.2.Thenputtheseclothesinthewardrobe.3.Thenmakethebed.4.Dustthedressingtable.5.Thensweepthefloor.1.用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句。2.祈使句最常用于表达命令。祈使句：如：Openthebook；Goout；ComeinHomework：1、每天听磁带三十分钟。预习Lesson31~32，熟读课文。2、抄写Lesson29~30单词5+3+23、句子3+12012年11月4日
