名词性从句练习题及答案

名词性从句考试题集youhavedonemightdoharmtootherpeople。A。ThatB。WhatC.WhichD.ThisTheyhavenoideaatall .A.wherehehasgoneB.wheredidhegoC。whichplacehehasgoneD。wherehashegone leavestheroomlastoughttoturnoffthelights.A。AnyoneB.ThepersonC.Whoever D。WhoUpongraduationheaskedtobesentto 。A。whereheismostneeded B.whereheneededC。whereheismostlyneeded D。whereishemostlyneededThesephotographswillshowyou 。A。whatdoesourvillagelooklike B.whatourvillagelookslikeC。howdoesourvillagelooklike D.howourvillagelookslikeCanyoumakesure thegoldring?A。whereAlicehadputB.wherehadAliceputC.whereAlicehasputD.wherehasAliceputNoonecanbesure inamillionyears。A。whatmanwilllooklike B。whatwillmanlooklikeC。manwilllooklikewhat D。whatlookwillmanlike theGameswillbeheldinBeijingisnotknown。A。Whenever B。IfC.WhetherD.ThatItworriedherabit herhairwasturninggrey。A。whichB.thatC.if D。for youdon’tlikehimisnoneofmybusiness.A.What B。WhoC。ThatD.Whether hesaidatthemeetingastonishedeverybodypresent。A.WhatB.ThatC.ThefactD.ThematterHeasked fortheviolin.A.didIpayhowmuch B.IpaidhowmuchC。howmuchdidIpay D。howmuchIpaid—Doyouremember hecame？—Yes,Ido，hecamebycar。A。howB.whenC.thatD。if isafactthatEnglishisacceptedasaninternationallanguage.A。ThereB。This C。ThatD.ItSarahhopestobecomeafriendof sharesherinterests。A。anyoneB.whomeverC.whoever D。nomatterwho wecan'tgetseemsbetterthan wehave.A。 What； whatB。What；thatC.That； thatD。 That;what we’llgocampingtomorrowdependsontheweather。A。 IfB。WhetherC。That D.WhereItisgenerallyconsideredunwisetogiveachild heorshewants。A。however B。whateverC。whichever D。whenever causedtheaccidentisstillacompletemystery。A。WhatB.ThatC.HowD.WhereItwasamatterof wouldtaketheposition.A.whoB。whoeverC.whomD。whomever—IdrovetoZhuhaifortheairshowlastweek。—Isthat youhadafewdaysoff？A.whyB.whenC.whatD。where hashelpedtosavethedrowninggirlisworthpraising.A。WhoB.TheoneC。AnyoneD。WhoeverThesewildflowersaresospecialIwoulddo Icantosavethem。A.thatB。whichC。whicheverD.whatever shecouldn'tunderstandwas fewerandfewerstudentsshowedinterestinherlessons.A.That;whatB.What;whyC.What；becauseD.Why;thatWhatthedoctorsreallydoubtis mymotherwillrecoverfromtheseriousdiseasesoon。A.whenB.howC.whether D。why isnopossibility Bobcanwinthefirstprizeinthematch.A。There;that B。It;that C。There；whether D.It;whetherWhenyouanswerquestionsinajobinterview，pleaserememberthegoldenrule:Alwaysgivethemoneyexactly hewants。A。what B.which C.when D.thatThereisanewprobleminvolvedinthepopularityofprivatecars roadconditionsneed .A。that;tobeimproved B。which；tobeimprovedC。where；improving D.when；improving—Areyoustillthinkingaboutyesterday’sgame? -Oh，that’s 。A。whatmakesmefeelexcited B。whateverIfeelexcitedaboutC。howIfeelaboutit D.whenIfeelexcitedWecannotfigureout quiteanumberofinsects，birds,andanimalsaredyingout.A.that B.as C。whyD。whenIthinkFatherwouldliketoknow I’vebeenuptosofar,soIdecidetosendhimaquicknote.A.which B。why C.what D。howAmoderncityhasbeensetupin wasawastelandtenyearsago。A。what B。whichC.that D。whereParentsaretaughttounderstand importanteducationistotheirchildren’sfuture。A.that B.how C.such D.soTheroadiscoveredwithsnow。Ican’tunderstand theyinsistongoingbymotor—bike。A。why B。whether C。when D.howAfterYangLiWeisucceededincirclingtheearth,___ourastronautsdesiretodoiswalkinspace.A。where B.what C。that D.howAstorygoes ElizabethIofEnglandlikednothingmorethanbeingsurroundedbycleverandqualifiednoblemenatcourt。A.when B.where C。what D。thatTheotherday，mybrotherdrovehiscardownthestreetat___Ithoughtwasadangerousspeed。A.as B。which C。what D。thatAlongwiththeletterwashispromise hewouldvisitmethiscomingChristmas.A。which B。that C。what D.whetherMarywroteanarticleon theteamhadfailedtowinthegame.A.why B.what C。whoD。thatDanbyleftwordwithmysecretary hewouldcallagainintheafternoon。A。who B.that C.as D。whichThewayhediditwasdifferent wewereusedto.A。inwhichB。inwhat C。fromwhat D。fromwhichIwassurprisedbyherwords，whichmademerecognize sillymistakesIhadmade.A。what B.that C.how D。whichWithhisworkcompleted,thebusinessmansteppedbacktohisseat，feelingpleased hewasamanofaction.A。which B.that C。what D。whetherWehaven’tsettledthequestionof itisnecessaryforhimtostudyabroad。A。if B.where C.whether D。thatmakesthisshopdifferentisthatitoffersmorepersonalservices.A.What B.Who C。Whatever D。WhoeverSeetheflagsontopofthebuilding？Thatwas wedidthismorning。A.whenB.whichC。where D。whatPleaseremindme hesaidhewasgoing.Imaybeintimetoseehimoff.A.whereB.whenC。howD。what—-—Whatdidyourparentsthinkaboutyourdecision？-——Theyalwaysletmedo IthinkIshould.A。whenB.thatC.howD。whatEnginesaretomachines heartsaretoanimals.A.asB.thatC。whatD。whichIjustwonder thatmakeshimsoexcited。A.whyitdoesB.whathedoesC.howitis D。whatitisOneadvantageofplayingtheguitaris itcangiveyouagreatdealofpleasure。A.howB.whyC.that D。whenHespokeproudlyofhispartinthegame，withoutmentioning histeammateshaddone.A.whatB.which C。whyD.while-—-It’sthirtyyearssincewelastmet.---ButIstillrememberthestory，believeitornot,___wegotlostonarainynight.A.whichB.thatC.whatD。whenThereismuchchance Billwillrecoverfromhisinjuryintimefortherace。A.thatB。whichC.untilD。ifNobodybelievedhisreasonforbeingabsentfromtheclass hehadtomeethisuncleattheairport。A。whyB。thatC。whereD.becauseTheseshoeslookverygood。Iwonder 。A.howmuchcosttheyareB.howmuchdotheycostC。howmuchtheycost D.howmucharetheycostDoris’successliesinthefact sheisco-operativeandeagertolearnfromothers.A。whichB.thatC.when D.why---Couldyoudomeafavor？-—-Itdependson itis.A。which B。whichever C。whatD。whateverTheotherday,mybrotherdrovehiscardownthestreetat Ithoughtwasadangerousspeed.A。as B.which C.whatD。thatAlongwiththeletterwashispromise hewouldvisitmethiscomingChristmas。A。whichB.that C.what D.whethermattersmostinlearningEnglishisenoughpractice。A.WhatB。WhyC。WhereD。Which hereferredtoinhisarticlewasunknowntothegeneralreader.A。ThatB.WhatC。Whether D。WhereThetraditionalviewis wesleepbecauseourbrainis“programmed”tomakeusdoso.A。whenB。whyC。whetherD.thatCouldIspeakto isinchargeofInternationalSalesplease？A．anyone B．someone C．whoeverD．nomatterwhoYoucanonlybesureof youhaveatpresent;youcannotbesureofsomething youmightgetinthefuture。A。that；whatB.what;/ C。which;thatD./;that—Where'sthatreport?—Ibroughtittoyou youwereinMr。Black’sofficeyesterday.A.if B。whenC.becauseD。beforeItisnoneofyourbusiness otherpeoplethinkaboutyou。Believeyourself.A.howB.whatC。whichD.whenHavingcheckedthedoorswereclosed，and allthelightswereoff,theboyopenedthedoortohisbedroom.A.why B.thatC.when D。whereChoosingtherightdictionarydependson youwanttouseitfor.A.what B.why C。how D。whether parentssayanddohasalife-longeffectontheirchildren。A。ThatB.Which C。WhatD。AsByimprovingreadingskills,youcanreadfasterandunderstandmoreof youread．A．thatB．whatC．whichD．whetherTheseasideheredrawsalotoftouristseverysummer。Warmsunshineandsoftsandsmake itis.A.what B.which C。howD。whereWhynottryyourluckdowntown,Bob?That’s thebestjobsare。A.whereB。whatC.whenD.whyThelawyerrarelywearsanythingotherthanjeansandaT-shirt theseason.A.whatever B。wherever C。wheneverD.howeverStudentsarealwaysinterestedinfindingout theycangowithanewteacher.A.howfarB.howsoonC.howoften D.howlong isknowntousallisthatthe2008OlympicGameswilltakeplaceinBeijing.A。ItB.WhatC.AsD。WhichWhenasked theyneededmost,thekidssaidtheywantedtofeelimportantandloved.A。what B.whyC。whomD.which wasmostimportanttoher,shetoldme，washerfamily。A.ItB.This C.WhatD.AsAnimalssufferedatthehandsofMan___theyweredestroyedbypeopletomakewayforagriculturallandhadtoprovidefoodformorepeople。A.inwhich B。forwhich C。sothat D。inthatTomorrowisTom’sbirthday。Haveyougotanyidea thepartyistobeheld?A。whatB。whichC.thatD。where wantstostayinahotelhastopaytheirownway。A.AnyoneB.Theone C。Whoever D.WhoSomechildrenwanttochallengethemselvesbylearningalanguagedifferentfrom theirparentsspeakathome.A。whatB.thatC。whichD.oneThecompaniesareworkingtogethertocreate theyhopewillbethebestmeansoftransportinthe21stcentury。A。whichB。thatC.whatD。whoThelasttimewehadgreatfunwas wewerevisitingtheWaterPark.A.where B。howC。whenD。whyPeopleinChongqingareproudof theyhaveachieved，inthepasttenyears.A.thatB。whichC。whatD。howAllpeople，__theyareoldoryoung，richorpoor，havebeentryingtheirbesttohelpthoseinneedsincethedisaster.A.evenifB.whetherC。nomatterD.howeverAshisbestfriend,Icanmakeaccurateguessesabout___hewilldoorthink.A。whatB.which C。whomD.that88。Ithasbeenprovedeatingvegetablesinchildhoodhelpstoprotectyouagainstseriousillnessesinlaterlife.A.ifB.because C.whenD。thatkey:1〜10BACABCACBC11〜20ADADCABBAA21〜30ADDBCAAAAC31~40CABABDCBAB41~50CABCADBDCD51〜60CABABCBCCB61〜70ABDCBBBBAC71〜80BAAAABACDD81〜88CACCCBAD十、高考热点透视1.Havingcheckedthedoorswereclosed,___allthelightswereoff，theboyopenedthedoortohisbedroom。A.why B。thatC.whenD.oursB.that在此用于引导宾语从句，用作动词check的宾语。现在分词havingchecked带有两个宾语从句（that）thedoorswereclosed和thatallthelightswereoff,只是前面一个宾语从句省略了引导词that。句意为：确定所有的门和灯都已关上，那个男孩才进他的卧室。Choosingtherightdictionarydependson youwanttouseitfor.A.whatB。whyC.howD.whether2。A.what用以引导宾语从句，用作介词on的宾语，其中的what在从句中用作介词for的宾语。句意为：如何选择正确的字典取决于你想要用它来做什么。 mattersmostinlearningEnglishisenoughpractice。A。WhatB。Why C。WhereD.Which3。A.what在此引导主语从句，相当于thethingthat。句意为：学习英语的关键在于足够的练习。 parentssaydohasalife—longeffectontheirchildren。A.ThatB.WhichC。What D。As4。C.what在此引导主语从句，相当于thethingthat.句意为：父母的一言一行在潜移默化中对孩子产生终生的影响。Theseasideheredrawsalotoftouristseverysummer。Warmsunshinesoftsandsmake itis.A。whatB.whichC。howD.whereC.how在此表方式，其后的it指前面提至U的.句意为：这儿的海滨每年夏天都要吸引许多的游客，这都是这儿温暖的阳光和柔软的沙滩的功劳。—-Whynottryyourlickdowntown,Bob？——That’s thebestjobsare.A.whereB.whatC.whenD.why6。A。where在此引导表语从句，表示“……的地方”。句意为：为什么不到楼下试试你的速度？那里是最好的地方.CouldIspeakto isinchargeofInternationalSales，please?A.anyoneB.someone C。whoeverD。nomatterwho7。C.whoever在此相当于themanwho。既作了to的宾语，又作isinchargeofInternationalSalesplease?的主语.whoever主要有两个用法：一是用于引导名词性从句，其意相当于themanwho;二是用于引导状语从句，其意相当于nomatterwho。句意为：请问我能和负责国际销售的人谈谈吗?Thecompaniesareworkingtogethertocreate theyhopewillbethebestmeansoftransportinthe21stcentury.A.whichB。that C。whatD.who8.C。what在此引导宾语从句，且在宾语从句中用作主语,其中的theyhope可视为插入成分。句意为：这些公司齐心协力希望制造出21世纪最好的交通工具. isknowntousallisthatthe2008OlympicGameswilltakeplaceinBeijing。A.ItB。WhatC.AsD。WhichB。what在此引导主语从句，且在主语从句中用作主语，相当于thethingthat。句意为:众所周知，2008年奥运会将在北京举行。Whenasked theyneededmost,thekidssaidtheywantedtofeelimportantloved。A.whatB。whyC。whom D。which10。A。what在此引导宾语从句（用作动词ask的宾语），what在宾语从句用作宾语（用作动词need的宾语）.句意为:当问到孩子们最需要什么的时候，他们说他们想要得到看重或被爱。 acertaindoubtamongthepeopleastothepracticalvalueoftheproject。A.IthasB.Theyhave C。ItremainsD。Thereremains11。【答案】D句意为：人们一直对这个项目的实用性价值心存疑虑。考查句意理解,remain表示疑虑的持续性。12．Sheisverydeartous.Wehavebeenpreparedtodo ittakestosaveherlife.A。whicheverB。howeverC.whateverD。whoever12。【答案】C名词性从句的引导词.句意为：她对我们来说是非常宝贵，我们已经准备好做一切来拯救她的生命.Thefacthasworriedmanyscientists theearthisbecomingwarmerandwarmertheseyears。A.what B。whichC。thatD。though【答案】C间隔式同位语从句的用法。即先行词是thefact和that引导的同位语从句中间隔了谓语部分。句意为:这些年来地球变得越来越暖的事实让许多科学家十分担心。Thehowtobookcanbeofhelpto wantstodothejob。A.who B。whomeverC.nomatterwhoD.whoever14。【答案】D此处做介词to的宾语，引导词做从句的主语。句意为:这本指导人们该如何做的书能帮助到任何想做这件事的人。Oneofthemostimportantquestionstheyhadtoconsiderwas ofpublichealth.A.whatB.thisC。thatD.which15。【答案】Cthat作代词，往往用于特指，相当于“that+名词”，只能代替事情不能代替人.句意为：他们必须考虑其中最重要的问题是公共卫生。Asanewdiplomat，heoftenthinksof hecanreactmoreappropriatelyonsuchoccasions。A。what B.whichC.thatD.how16。【答案】Bwhich指代某一方面。句意为：作为一名新外交官，他经常思考在这样的场合中还有哪些方面他还能应对得更得体些。Newscamefromtheschooloffice WangLinhadbeenadmittedtoBeijingUniversity.A。whichB.whatC。thatD。where17。【答案】C在该题中that引导了一个后置的同位语从句来解释说明news的内容.句意为：学校办公室传来消息：王林已经被北京大学录取。Itisobvioustothestudents theyshouldgetwellpreparedfortheirfuture。A.asB。which C.whetherD。that18【答案】Dthat引导的主语从句。句意为：很明显，学生们需要为他们的未来做好充分的准备。19．－Isthereanypossibility youcouldpickmeupattheairport？－Noproblem.A。when B.that C。whetherD。what19。【答案】B句意为：你能捎我去机场吗？没问题。Weshouldconsiderthestudents'request___theschoollibraryprovidemorebooksonpopularscience。A。thatB。whenC.whichD.where20.【答案】Athat引导的同位语从句。句意为:我们应当考虑一下学生们关于学校图书馆应当提供更多科普书籍的请求。___isafactthatEnglishisbeingacceptedasaninternationallanguage.A。ThereB.This C。That D.It21。答案D。此句也可以改写为：ThatEnglishisbeingacceptedasaninternationallanguageisafact。句意为：英语正渐渐成为一门国际语言是一个不争的事实.22．Acomputercanonlydo youhaveinstructedittodo．A．howB．afterC．whatD．when答案C。what引导宾语从句，做主句谓语动词do和从句中do的宾语。句意为：电脑只能做你命令它做的事情。Heasked foraviolin．A。didIpayhowmuch B.IpaidhowmuchC。howmuchdidIpay D。howmuchIpaid23。答案:D。宾语从句必须是陈述语序.句意为：他问我买那架小提琴付了多少钱？Whatthedoctorsreallydoubtis mymotherwillrecoverfromtheseriousdiseasesoon．A。whenB.how C。whetherD.why答案C。这是一个表语从句。根据doubt一词可知,所怀疑的应是是否能治好病，所以要填whether。这句话的意思是“医生真的怀疑我妈妈是否能很快从重病中恢复过来。”25．Itisgenerallyconsideredunwisetogiveachild heorshewants。A.howeverB。whateverC.whicheverD.whenever答案B.此句为宾语从句。however和whenever不能作宾语，whichever表示“无论哪一个，无论哪些”.whatever作wants的宾语。句意为：一般认为孩子要什么就给什么是不好的。 leavestheroomlastoughttoturnoffthelights.A。AnyoneB.ThepersonC。WhoeverD.Who26。答案C。连接代词whoever可引导名词性从句，并在从句中作主语。选A或B，都必须在它们后面再加上引导定语从句的关系代词who。选D则体现不出“无论谁”的含义。句意为：无论谁最后离开房间一定要把灯关掉。Sarahhopestobecomeafriendof sharesherinterests。A。anyoneB。whomeverC.whoeverD.nomatterwho27。答案为C。疑问词+ever引导的名词性从句与nomatter+疑问词引导的从句的区别是:前者既可以引导名词性从句也可以引导让步状语从句；后者只能引导让步状语从句。用whoever作从句的主语。句意为：Sarah希望跟自己有共同爱好的人交朋友.——-—IdrovetoZhuhaifortheairshowlastweek.——-—Isthat youhadafewdaysoff？A.whyB.how C。thatD。where28.答案A。句意为：我上周驱车去珠海观看航模展览。那就是你为什么离开几天的原因吗？Istillremember thisusedtobeaquietvillage.A.whenB.howC.whereD.what29.答案A.when作从句的状语。usedtobe表示一种过去存在的状态，句意为：我仍然记得这里在什么时候是个宁静的地方。30．Ireadaboutitinsomebookorother，doesitmatter itwas？A．whereB．what C．howD．which30。答案D。主语从句which作表语。句意为:我在某本书中读到过有关这方面的内容，是哪一本书重要吗？Informationhasbeenputforward moremiddleschoolgraduateswillbeadmittedintouniversities。A.whileB.thatCwhenD。as31答案B.that引导同位语从句。同位语从句通常由that引导，接在fact，news,promise，possibility,information,doubt,message名词后，用来解释或说明名词的内容。句意为:消息称：越来越多的中学毕业生将会被大学录取.—Ithinkitisgoingtobeabigproblem.—Yes，itcouldbe.—Iwonder wecandoaboutit.A、if B、how C、whatD、that32。答案C。wonder后面应跟宾语从句，而从句中的谓语动词do是及物动词，可见从句缺少一个代替宾语的成分,if和that不作成分，how引导方式状语的。句意为：我想知道我们能就此做些什么..ManyyoungpeopleintheWestareexpectedtoleave__couldbelife'smostimportantdecision-marriage—almostentirelyuptoluck.A。as B.that C.which D.what33【答案】D。what作从句的主语。句意为:在西方，许多年轻人不想结婚。尽管它是人生中最重要的决定，却又几乎完全靠运气.。Thelittlegirlwhogotlostdecidedtoremain shewasandwaittorhermother.A。where B。what C。howD.who34【答案】A。remain是系动词，后加表语从句，where作地点状语。句意为:那个迷路的小女孩决定留在原地等她的妈妈。十、高考热点透视Havingcheckedthedoorswereclosed，___allthelightswereoff，theboyopenedthedoortohisbedroom.A.whyB.that C。whenD.oursChoosingtherightdictionarydependson youwanttouseitfor.A。whatB.whyC。how D。whether mattersmostinlearningEnglishisenoughpractice。A。WhatB.WhyC。Where D。Which parentssaydohasalife-longeffectontheirchildren.A.ThatB.WhichC。WhatD。AsTheseasideheredrawsalotoftouristseverysummer。Warmsunshinesoftsandsmake itis。A。whatB.whichC。howD.where--Whynottryyourlickdowntown，Bob？——That’s thebestjobsare。A.whereB。whatC。whenD.whyCouldIspeakto isinchargeofInternationalSales,please？A。anyoneB。someoneC.whoeverD。nomatterwhoThecompaniesareworkingtogethertocreate theyhopewillbethebestmeansoftransportinthe21stcentury.A.whichB.thatC.whatD.who isknowntousallisthatthe2008OlympicGameswilltakeplaceinBeijing。A.It B.WhatC。AsD.WhichWhenasked theyneededmost，thekidssaidtheywantedtofeelimportantloved。A。what B。whyC。whomD.which acertaindoubtamongthepeopleastothepracticalvalueoftheproject.A。IthasB。TheyhaveC。ItremainsD.Thereremains12．Sheisverydeartous.Wehavebeenpreparedtodo ittakestosaveherlife.A。whicheverB.howeverC。whateverD.whoeverThefacthasworriedmanyscientists theearthisbecomingwarmerandwarmertheseyears。A。what B。which C。thatD.thoughThehowtobookcanbeofhelpto wantstodothejob。A.whoB.whomeverC.nomatterwhoD.whoeverOneofthemostimportantquestionstheyhadtoconsiderwas ofpublichealth。A。what B。thisC.that D。whichAsanewdiplomat,heoftenthinksof hecanreactmoreappropriatelyonsuchoccasions.A。what B。which C。thatD.howNewscamefromtheschooloffice WangLinhadbeenadmittedtoBeijingUniversity。A。whichB.whatC.thatD.whereItisobvioustothestudents theyshouldgetwellpreparedfortheirfuture。A.as B。whichC.whether D。that19．－Isthereanypossibility youcouldpickmeupattheairport？－Noproblem。A。when B.that C.whether D。whatWeshouldconsiderthestudents’request___theschoollibraryprovidemorebooksonpopularscience.A。thatB。whenC.which D。where___isafactthatEnglishisbeingacceptedasaninternationallanguage。A。ThereB.This C.That D.It22．Acomputercanonlydo youhaveinstructedittodo．A．howB．after C．what D．whenHeasked foraviolin．A。didIpayhowmuchB.IpaidhowmuchC.howmuchdidIpayD。howmuchIpaidWhatthedoctorsreallydoubtis mymotherwillrecoverfromtheseriousdiseasesoon．A。whenB.how C。whetherD。why25．Itisgenerallyconsideredunwisetogiveachild heorshewants.A。howeverB.whateverC.whicheverD.whenever leavestheroomlastoughttoturnoffthelights。A。Anyone B。ThepersonC。WhoeverD.WhoSarahhopestobecomeafriendof sharesherinterests.A。anyoneB.whomeverC.whoever D。nomatterwho—-——IdrovetoZhuhaifortheairshowlastweek.---—Isthat youhadafewdaysoff?A.whyB。howC.thatD.whereIstillremember thisusedtobeaquietvillage。A.whenB。howC.whereD。what30．Ireadaboutitinsomebookorother,doesitmatter itwas?A．whereB．whatC．howD．whichInformationhasbeenputforward moremiddleschoolgraduateswillbeadmittedintouniversities.A.whileB。thatCwhen D。as—Ithinkitisgoingtobeabigproblem.—Yes，itcouldbe。—Iwonder wecandoaboutit.A、if B、how C、whatD、thatManyyoungpeopleintheWestareexpectedtoleave__couldbelife’smostimportantdecision-marriage—almostentirelyuptoluck.A.as B。that C。which D.whatThelittlegirlwhogotlostdecidedtoremain shewasandwaittorhermother.A。where B.whatC.how D。whoB。that在此用于引导宾语从句，用作动词check的宾语。现在分词havingchecked带有两个宾语从句（that）thedoorswereclosed和thatallthelightswereoff，只是前面一个宾语从句省略了引导词that。句意为：确定所有的门和灯都已关上，那个男孩才进他的卧室.A。what用以引导宾语从句，用作介词on的宾语，其中的what在从句中用作介词for的宾语。句意为：如何选择正确的字典取决