新概念143课PPT课件.ppt

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1、Lesson144Hehasn’tbeenservedyet.Hewillbeservedsoon.WhydidIfeelsad?BecauseIfoundmanyrubbisheverywhereinthewoods.surroundsurroundbeautyspotvisitorvisitorUnit721234567891011121314151617181920edssdtssssdededbesurroundedwith/by被……环绕着，周围都是……gotothewoods失去社会地位inthegreenwood

2、在青春旺盛时期，处于顺境outofthewoods脱离危险spotn.点，斑点；地点v.沾污；弄脏；发现onthespot当场withoutspot毫无缺点payavisit访问（某人），参观（某地）onavisitto访问某人，在…..家里做客岛就是指陆地被水包围着。Theislandistheplacewhichissurroundedbywater.今天我家有些客人。Therearesomevisitorsinmyhouse.它们是什么时态呢？又是什么语态呢？Visitorshavebeenaskedtokeepthew

3、oodscleanandtidy.Litterbasketshavebeenplacedunderthetrees,butpeoplestillthrowtheirrubbisheverywhere.6．Wehavemadetwentymorekeys．Twentymorekeyshavebeenmadebyus.现在完成时：S+have/has+been+过去分词7．AmycantakegoodcareofGina．GinacanbetakengoodcareofbyAmy.情态动词：S+can/may/must/shoul

4、d+be+过去分词7.含有情态动词的被动语态Theteachersaid,“Youmusthandinyourcompositionsafterclass.”Hecanwriteletterswiththecomputer.Letterscanbewrittenwiththecomputerbyhim.Theteachersaid,“Yourcompositionsmustbehandedinafterclass.”8.过去完成时WhenIgottothetheatre,Ifoundtheyhadalreadysoldoutt

5、hetickets.WhenIgottothetheatre,Ifoundtheticketshadalreadybeensoldout.各种时态的被动语态构成一般现在时：一般过去时：情态动词：一般将来时：现在进行时：现在完成时：过去进行时：S+am/is/are+P.PS+was/were+P.P.S+can/may/must/should+be+P.P.S+will+be+P.P.S+am/is/are+being+P.P.S+have/has+been+P.P.S+was/were+being+P.P.以疑问代词开头的疑

6、问句转换成被动句时要注意词序：应将主动句中的疑问代词改为介词by的宾语，但仍然放在句子开头。Whohasbrokenthecup？（改为被动语态）→Bywhomhasthecupbeenbroken？牢记与被动语态相关的句型：1．becoveredwith被……覆盖2．bemadeof由……制作（能看出原材料）bemadefrom由……制作（不能看出原材料）bemadein由（某地）制造bemadeby被（某人）制造3．beusedfor被用来……beusedas被当作（作为）……来使用beus

7、edtodosth．被用来做某事4．Itissaidthat据说Itishopedthat希望……Itiswellknownthat．．．众所周知……Exercises:1.Heiscleaningtheclassroom.2.Theyhavefinishedtheirhomework.3.Icanmendhisbike.Theclassroomisbeingcleaned.Theirhomeworkhasbeenfinished.Hisbikecanbemended.4.Shewillbuytenbookstomorro

8、w.5.Weshouldn’tallowthemtogooutwiththeirfriends.6.Theoldmanoftenwaterstheflowers.Tenbookswillbeboughtbyhertomorrow.Theyshouldn’tbeallowedt