高二英语名词性从句讲解

英语名词性从句NounClause起名词性作用的从句，叫名词性从句。换言之，在英语的句子结构中，本来该由名词充当的主语、宾语、表语和同位语部分，换由一个句子来充当，这样的句子就是名词性从句。请思考定语从句的定义：起定语作用，用来修饰名词或代词的从句。名词性从句定义4、同位语从句(appositiveclause)名词性从句分类1、主语从句(subjectclause)2、表语从句(predicativeclause)3、宾语从句(objectclause)1、Englishisveryusefulforus.2、ThesubjectIaminterestedinisEnglish.3、WeneedtomasterEnglishwell.4、Hewanttolearnthelanguage,English.请思考：(主语)(宾语)(表语)(同位语)MydreamisthatIcanenterakeyuniversity.ThatIcanenterakeyuniversityismydream.IhaveadreamthatIcanenterakeyuniversity.IalwaysdreamthatIcanenterakeyuniversity.主语从句表语从句宾语从句同谓语从句辨别不同的从句when、why、where、how引导词that、if、whetherwho、whom、what、which、whose、whoeverwhomever、whatever、whichever、从属连词：连接代词：连接副词：1、Thatwewillrealizeourdreamsinthefutureiscertain.2、ThefactisthatBeijingwillhold29thOlympicGamesthisyear.3、Iknowthatwellbegunishalfdone.4、HeheardthenewsthatLiuxiangsetanewworldrecord.“that”---无词义、不作成份、起连接作用（主语从句）（表语从句）（宾语从句）（同位语从句）1、Myideaisthatweshoulddoitrightnow.2、Shewon’tbelievethathehasbecomeathief.3、Thatheisafamoussingerisknowntous.4、Iknewthenewsthatourteamwonthematch.5、Hissuggestionisthatweshouldfinishtheworkatonce.说出从句部分及类别并翻译：同位语从句表语从句表语从句主语从句宾语从句1、Whethershewillcomebackontimedependsonweather.2、Theproblemiswhetheryoucouldgiveussomevaluableadvice.3、Iaskedhimif/whetherhecoulddomeafavor.4、CouldyoutellmethequestionwhetherEnglishisusefulforusnow.（主语从句）（表语从句）（宾语从句）（同位语从句）“”----“____”、_____成份、起______作用不充当连接是否Whether/ifa.主语从句b.表语从句c.同位语从句e.介词后的宾语从句f.whethertodo做动词宾语不能用iftodo.gwhetherornot连在一起引导宾语从句时不用if.不能使用if的情况：1.Iaskedher__________shehadabike.2.______wewillholdapartyintheopenairtomorrowdependsontheweather.3.We’reworriedabout________heissafe.4.Idon’tknow___________heiswellornot.5.Idon’tknow________ornotheiswell.6.Thequestionis_________heshoulddoit.7.Thedoctorcanhardlyanswerthequestion______theoldmanwillrecoversoon.8.Idon’tknow_______togo.if/whetherWhetherwhetherwhether/ifwhetherwhetherwhetherwhetherConclusion:从属连词“that”---无词义、不作成份、起连接作用“if/whether”---“是否”、不作成份、起连接作用连接代词名词性从句引导词的用法（2）：“who”“what”“whose”“which”1、Whowillgotothecollegeisstilluncertain.2、Thetroubleiswhocouldlendmesomemoney.3、Hewanttoknowwhosheis/whoshehasseen.（主语从句）（表语从句）（宾语从句）“”----“____”、_____成份、起______作用作主表宾语连接谁who“who”---“谁”、作主宾表语、起连接作用1、Whowillgotothecollegeisstilluncertain.2、Thetroubleiswhocouldlendmesomemoney.3、Hewanttoknowwhosheis/whoshehasseen..（主语从句）（表语从句）（宾语从句）1、Whichclassissuitableforusisn’tmostimportant.2、Whathewantstoaskyounowiswhichteamwonthegame.3、Couldyoutellmewhichoneisright.（主语从句）（表语从句）（宾语从句）“”----“____”、_____成份、起______作用作定语哪---连接which1、Whosebagwasthemostbeautifulisstillunknownnow.2、Thequestioniswhosefriendscouldlendmeahand.3、Iwanttoknowwhosesuggestionismorepractical.（主语从句）（表语从句）（宾语从句）“”----“____”、_____成份、起______作用作定语连接谁的whosethat和what的选用that和what都可引导所有的名词从句。但是，what除起连接作用外，还在名词性从句中充当成分，可做从句的主语、宾语、或表语。而that在名词性从句中不充当任何成分，只起连接作用。用that/what填空：1.______hewantsisabook.2.______hewantstogothereisobvious.3.Theresultis______wewonthegame.4.Thisis_____wewanttoknow.5.Ihavenodoubt_____hewillcome.6.Ihavenoidea_____hedidthatafternoon.WhatThatthatwhatthatwhat连接代词Conclusion:“who”---“谁”、作主宾表语、起连接作用“what”---“事情”、作主表宾、起连接作用“whose”---“谁的”、作定语、起连接作用“which”---“哪----”、作定语、起连接作用名词性从句引导词的用法（3）：连接副词“why”“how”“where”“when”“when”--“什么时候”、作时间状语、起连接作用1、Whenthemeetingwillbeginisn’tdecidednow.2、Thetroubleiswhenhecouldrecoverfromthedisease.3、Heaskeduswhenwewouldgraduatefromtheschool.（主语从句）（表语从句）（宾语从句）1、WhereIcouldbuythebookisuncertainnow.2、Hisquestionwaswherewewouldholdtheopeningceremony.3、Icouldn’ttellyouwheretheyhavebeenliving.（主语从句）（表语从句）（宾语从句）“”----“____”、_____、起连接作用什么地方地点状语where1、Whyhekilledhimselfisstillasecretnow.2、IjustwanttoaskyouwhyIwasfired.（主语从句）（宾语从句）“”----“____”、_____、起连接作用原因状语为什么why3、Howthethiefstolethebikeisstillamystery.4、Whattheprofessoraskeduswashowwecouldmakeourparentshappy.（主语从句）（表语从句）“”----“____”、_____、起连接作用How如何方式状语Conclusion:连接副词“why”----“为什么”、作状语、起连接作用“how”-----“如何”、作状语、起连接作用“where”--“什么地方”、作状语、起连接作用“when”--“什么时候”、作状语、起连接作用总结：引导名词性从句的三类关联词1.that,whether/if(在从句中不做成分，只起连接作用)2.whatwhowhichwhose(在从句中做主、表、宾、定成分)3.whenwhywherehow(在从句中做状语)1.___hemadeanimportantspeechatthemeetingwastrue.A.ThatB.WhyC.WhatD.How2.___we’llgocampingtomorrowdependsontheweather.A.IfB.WhetherC.ThatD.Where3.___isknowntousallisthatAmericaisadevelopedcountrybelongingtotheFirstWorld.A.WhichB.AsC.WhatD.It一、名词性从句练习：4.Heisabsentfromschool.Itis__hewaspunished!A.whyB.becauseC.thatD.thereason5.____madetheschoolproudwas____morethan90%ofthestudentshadbeenadmittedtokeyuniversities.A.What/becauseB.What/thatC.That/whatD.That/because6.–IdrovetoZhuhaifortheairshowlastweek.--Isthat___youhadafewdaysoff?A.whyB.whenC.whatD.where7.Itmakesnodifference___youwillgotodayortomorrow.A.ifB.whetherC.thatD.what8.Energyis___makesthingswork.A.whatB.somethingC.anythingD.that9.Whatthedoctorsreallydoubtis_____mymotherwillrecoverfromtheseriousdiseasesoon.A.whenB.ifC.whetherD.why10.LittleTommywasunwillingtotelltheheadteacher______hehaddonethedaybefore.A.thatB.howC.whereD.what11.____fashiondiffersfromcountrytocountrymayreflecttheculturaldifferencesfro