人教版四年级英语上册 （My classroom）新课件(第3课时)

Unit1Myclassroom

第3课时WarmingupDoyouknowhowtocleantheclassroom?Cleaningtheclassroomcanbefun!Ithinkso!Let’scleantheclassroom.OK.Butbeforethat,let’splayagame!知识讲解First,drawtheshapeandcutit.知识讲解Then,writedownthetasks.知识讲解Cleanthedoor.Cleantheblackboard.Cleanthewindows.Cleanthedesksandchairs.Cleanthefloor.Cleantheteacher’sdesk.Oh,Imustcleanthedesksandchairs.Whataboutyou?Iwillcleanthefloor.知识讲解Cleanthedesksandchairs.Cleanthefloor.Oh,itseemsalotofwork.Thankyou!知识讲解Letmehelpyou!知识讲解Cleaningtheclassroomcanbefun!打扫教室可以很有趣！动词的ing形式可以做主语，如：Exercisingisgoodforyou.锻炼对你有好处。Studyingisimportant.学习很重要。Ithinkso!我也这么认为！so意为“如此，这样”。Ithinkso.用来表达认同对方的观点。知识讲解Let’scleantheclassroom.让我们来打扫教室。let’s是letus的缩写形式。let’sdosth.意为“让我们做某事”，是一个祈使句，所以必须用动词原形do。如：Let’splayagame!让我们玩个游戏吧！Let’sgoandsee.让我们去看看。Letme

help

you.

让我来帮你。Letmedosth.意为“让我做某事”，如：Letmecleanthewindows.

让我来擦窗户。Letmeclosethedoor.让我来关门。课堂小结clean打扫help帮助floor地板fun有趣的playagame玩游戏课堂小结Cleaningtheclassroomcanbefun!打扫教室可以很有趣！Ithinkso!我也这么认为！课堂小结Let’scleantheclassroom.让我们来打扫教室。Letme

help

you.

让我来帮你。Thanksandseeyounexttime!Unit1Myclassroom

第4课时WarmingupIcan'tfindmycrayon!Canyouhelpme,Mike?Sure!

Letmehelpyou.知识讲解Isitinthedesk?No,itisn't.知识讲解Isitontheteacher'sdesk?No,itisn't.知识讲解Isitonthechair?No,Idon'tthinkso.知识讲解Letmethink…Isitonthefloor?Yes!Iseeit!知识讲解You'rewelcome.Thankyou,Mike！知识讲解Now,let'sfindotherthingsintheclassroom.Areyouready?知识讲解Whereisthegreenbag?It'sonthedesk.知识讲解Whereistheclock?It'sonthewall.知识讲解Whereisthecomputer?It'sonthedesk,nearthewindow.知识讲解Whereisthefan?It'sontheteacher'sdesk.知识讲解Whereisthefootball?It'sunderthedesk.知识讲解Isitinthedesk?它在书桌里吗？这是一个一般疑问句，要把be动词提前，句末加问号。当主语是it,he,she时，be动词用is。当主语是I时，be动词用am。当主语是you,we,they时，be动词用are。回答：Yes,itis.是的。No,itisn't.不是。知识讲解Whereisthegreenbag?绿色的书包在哪里？这是一个特殊疑问句，以特殊疑问词where开头，意为“哪里”。Whereis+he/she/it/the+单数名词/the+不可数名词？Whereare+you/they/we/the+复数名词？Whereisthebook?书在哪里？Whereisshe?她在哪？Whereareyou?你在哪？Wherearethecrayons?蜡笔在哪里？知识讲解It'sonthedesk.它在桌子上。介词in/on/under/near分别表示“在…里”，“在…上”，“在…下”，“在…旁边”。inonundernear课堂小结Fan风扇Wall墙Is