搜索
从句一律保持陈述语序。主语从句同位语从句表语从句宾语从句Howshouldweusemoderntechnology?Theproblemis…Theproblemishowweshouldusemoderntechnology.WhenwillmanbeabletoliveonMars?….isunknowntousall.WhenmanwillbeabletoliveonMarsisunknowntousall.Wherewillalltheseadvancedtechnologyleadus?Ican’timagine….Ican’timaginewherealltheseadvancedtechnologywillleadus.Hissuccessinthecompetitionmadeushappy.Thathesucceededinthecompetitioninthegamemadeushappy.一个句子，在连词的引导下，在另一个句子中充当名词使用，叫名词从句1.连接词有：thatwhether和lf2.连接代词有：whowhomwhosewhichwhat等3.连接副词有：whenwherewhyhow等另外whateverwhoeverwhichever等也可以引导主语和宾语两种从句。名词性从句可以表示：事实和问题。名词性从句中的“that”没有词义，也不作任何成分。1.主语从句：从句在句中充当主语成分1).Thathewillsucceediscertain.2)Whetherhewillgothereisnotknown.3)Whathesaidisnottrue.4)Wherehehidthemoneyistobefoundout.5)Whoevercomesiswelcome.6)It’scertainthathewillsucceed.7)Howwecanhelpthetwinswillbediscussedatthemeeting.8)Whenthey’llstarttheprojecthasnotbeendecidedyet.It的用法：（形式主语）It’possible/important/necessary/clear…that……很可能/重要的是…/必要的是…/很清楚…It’said/reported…that..据说/据报道…It’sbeenannounced/declaredthat..已经通知/宣布…Itseems/appears/happens..that…显然、明显、碰巧..It’snowonderthat…并不奇怪/无疑…It’sapity/afact/acommonknowledge(众所周知）/acommonsaying….（俗话说）注意：1.Whatyouleftareonlyseveraloldbooks.2.Whatyousaidisofgreatimportance.3.Whathesaysanddoesdoesn’tconcernme.4.Whathesaysanddoesdon’tagree.“if”不能引导主语从句，应有“whether”引导。主语从句的“that”一般不能省。“what”引导主语从句时，谓语动词：1）常与其后的名词作表语一致2）根据句子的语境而定。1.___hemadeanimportantspeechatthemeetingwastrue.A.ThatB.WhyC.WhatD.How2.___we’llgocampingtomorrowdependsontheweather.AIfBWhetherCThatDWhere3.___isknowntousallisthatAmericaisadevelopedcountry____theFirstWorld.a.Which;belongtob.As,belongedtoc.What;belongingtod.It;belongingto4.It’sknowntousall___aformofenergy.A.waterisB.thatwaterisC.iswaterD.thatwaterto5.Itworriedherabit___herhairwasturninggray.A.whetherB.ThatC.whatD.when6.WhatIsayandthink___noneofyourbusiness.A.isB.areC.hasDhave2.宾语从句：从句在句中充当宾语成分（可以作谓语动词、介词、不定式等非谓语动词的宾语）连词：that,whether，if（that常可省略）who,what,which,whoever,whatever,whenwherewhyhow1).Theyknowthatthehabitwillkillthem.2).Italldependsonwhethertheywillsupportus.3)HeaskedhowmuchIpaidfortheviolin.4).Hemadeitcleartothepublicthathedidanimportantandnecessaryjob.5).Ifinditnecessarythatweshoulddothehomework.注意：1、当主句的谓语动词是一般现在时或一般将来时，宾语从句的谓语动词可以用所需要的任何一种时态。2、当主句的谓语动词是一般过去时，宾语从句的谓语动词要用相应的过去时态，但当宾语从句叙述的内容为客观真理时，仍然用一般现在时。Theteachertoldhisclassthatlight_______fasterthansound.travels1.Theradiosaysit_______cloudytomorrow.(be)2.Theheadmasterhopeseverything______well.(go)3.Tomsaysthatthey_________(play)basketballatsixo’clockyesterdayevening.4.Ihearthey__________(return)italready.5.Hesaidthatthey_________membersofthePartysince1948.(be)willbegoeswereplayinghavereturnedhadbeen6.Ididn’tknowwhattimehe_______theletter.(write)7.Couldyoutellmewho_________awaythebookalready?(take)8.LingFengtoldmehe_________totheGreatWallseveraltimes.(be)wrotehastakenhadbeen3.表语从句：从句在句中充当表语成分，一般放在连系动词之后.作用：对主语进行解释说明。连接词：that/whether/asif/asthough（if不引导表语从句)连接代词：who/whom/whose/which/what连接副词：when/where/why/how/becauseThequestioniswhetherwecanrelyonhim.That’sbecausewewereinneedofmoneyatthattime.Helookedasifhewasgoingtocry.That’swhyIwaslate.注意：1.在表语从句中，表“是否”时，只能用“whether”不能用“If”。2.一般情况下，“that”不能省。3.Itis/wasbecause….Itis/waswhy….3.Thereason(why…/for…)is/wasthat….4Thereasonisbecause/why…that….1.That’s___thePartycalledonustodo.A.whyB.whatC.howD.that2.Thereasonis___heisunabletooperatethemachine.A.becauseB.whyC.thatD.Whether3.Thatis___theyseparated.A.thatB.whatC.whichD.where4.Janeisnolonger___shewasfouryearsago.A.whatB.whichC.thatD.when4同位语从句：从句在句中充当同位语成分，其一般跟在一些抽象名词（idea；belief；fact；truth；problem；news等）后面，对名词作进一步解释说明.同位语从句常用that引导或用连接副词when/where/why/how/whether1)Theideathatcomputerscanrecognizehumanvoicessurprisesmanypeople.2)WordcamethatNapoleonhimselfwascomingtoinspectthem.3).SydneykepthispromisethathewouldalwaysdoanythinghecouldforLucietomakesureofherhappiness.Ihavenoideawhenhewillbeback.howhecangetthetreasure.wheretheconcertwillbehold.whocanfinishthework.whyithappened.whichpenismine.whatweshoulddonext.whomtheyaretalkingabout.whetherit’llraintomorrow.thatourfootballteamwonthegame.Ihaveheardthenewsthathevisitedourfactory.Ihaveheardthenewsthathetoldyoutheotherday.同位语从句和定语从句的区别：1同位语从句——that只起连接作用，不作任何成分定语从句——that是关系代词，起连接作用和充当宾语和主语2同位语从句——同位语从句和前面的名词是同位关系，对名词进行补充说明定语从句——定从和前面的名词是所属关系，对名词进行修饰，加以限定3同位语从句——that不能省定语从句——that在从句中作宾语时，可以省1.Theideathatcomputerswillrecognizehumanvoicessurprisesmanypeople.1)Whatistheidea?Theideaisthatcomputerswillrecognizehumanvoices.2)Whatsurprisesmanypeople?i)Theideasurprisesmanypeople.ii)Thatcomputerswillrecognizehumanvoicessurprisesmanypeople.2.Thepossibilitythatthemajorityofthelaborforcewillworkathomeisoftendiscussed.1)Whatisthepossibility?Thepossibilityisthatthemajorityofthelaborforcewillworkathome.2)Whatisoftendiscussed?i)Thepossibilityisoftendiscussed.ii)Thatthemajorityofthelaborforcewillworkathomeisoftendiscussed.3.We’lldiscusstheproblemthatthemajorityofthestudentsareoftenlateforschool.1)Whatistheproblem?Theproblemisthatthemajorityofthestudentsareoft