WHAT引导从句

ＷＨＡＴ引导从句一.引导主语从句1)Whatweneedismoretime.(what做need的宾语)我们所需要的是更多的时间.2)Whatreallymattersisthatsheworeapairofwhiteshoes.(what做matters的主语)真正麻烦的是她穿了一双白鞋.二.引导宾语从句1)Peoplewereperhapsmorehonestalongtimeagowhenlifewasverydifferentfromwhatitistoday.(what做从句中is的表语)很久以前当生活与现在的生活完全不同时，人们或许更诚实.2)PeoplehaveheardwhatthePresidenthassaid;theyarewaitingtoseewhathewilldo.(what分别做动词heard和see的宾语)人们已经听到了总统所说的；他们正等着看总统会做什么.三.引导表语从句1)Whetherwayswillbefoundtostoppollutionornotisjustwhatworriesthepublic.(what做从句中的主语)是否能找到阻止污染的方法就是所令民众担心的事儿.2)ThatiswhatIwanttotellyou.(what做从句中的宾语)那就是我想告诉你的事儿.3)Thelittlegirlisnolongerwhatsheusedtobe.(what做从句中的表语)这个小女孩不再是过去的样子了.四.引导同位语从句1)Theyhavenoideaatallwhatheisworkingon.(what做从句的宾语)他们一点儿都不知道他正在做什么.2)YouhavenoideawhatIsuffered.(what做从句的宾语)你不知道我所遭受的痛苦.通过以上例句及解释我们可以得出：what常用来引导名词性从句，即主语从句，宾语从句，表语从句和同位语从句.what在引导名词性从句时有两个重要的特点：一是它在相应的名词性从句中一定有含义，常表示“什么”，“所…的”，“…的样子”等.二是它在相应的名词性从句中一定做成分，而且常做主语，宾语或表语.练习：1.Itisnotyetprettywelunderstood_____madetherainforestdisappearyearbyyear.A.thatB.whenC.whatD.how2.Thewordmediabasicalyrefersto_______wecommonlycallnewspapers，magazines，radiosandtelevisions.A.whichB.whatC.whyD.how3.It'swellunderstood_____controlstheflowofcarbondioxideinandoutoftheatmospheretoday.A.thatB.whatC.howD.whether4.Thesmallmountainvillage____wespentourholidaylastmonthliesin_____isnowpartofHubei.A.which;whereB.where;whatC.that;whichD.when;which5.Thereasonwhyhewaslatewas_____hehadtakenawrongbus.A.becauseB.whetherC.whatD.that6.WhyisLiMingsolate？Idon'tknow______.A.canwhatthereasonbeB.whatthereasoncanbeC.thereasonwhatcanbeD.whatcanthereasonbe答案：CBBBDB