高中英语中六大从句用法总结
英语中六大从句用法总结
1.主语从句
1）主语从句可直接位于主语的位置，如果从句较长，谓语又较短，可用it作形式主语，而将从句放在句末。常见的句型有：*Itisafact\\apity\\aquestion\\goodnewsthat...*Itseems\\appears\\happened\\hasturnedoutthat...*Itisclear\\important\\likely\\possiblethat...
*Itissaid\\reported\\estimated\\hasbeenprovedthat...
Itissaidthatcomicbookscreateaconnectionbetweenpeopleofthesamegeneration.Itseemsthattheperformanceisveryuseful.
2)what引导的主语从句表示“...的东西时”，一般不用it作形式主语。
Whatwelackisexperience.
3)what,who,when,why,whether等词含有各自的疑问意义，但它们引导的主语从句，都用陈述语序。
Howtheplanistobecarriedoutshouldbediscussedagain.IdidknowwhyIfeltlikecrying.
2.宾语从句
1）宾语从句可位于及物动词、介词和某些形容词后。连词that常可省略。介词后一般接疑问词引导的宾语从句。inthat(因为),exceptthat(除了),butthat(只是）已构成固定搭配，其他介词后一般不接that引导的宾语从句。
*IpromisedthatIwouldchangethesituation.
*AllthisisdifferentfromwhatAmericanyoungpeoplewouldsayaboutfriendship.*Heiscertainthatwatchingsomuchtelevisionisnotgoodforchildren.*Thisarticleiswell-writtenexceptthatitisabittoolong.
2)宾语从句后如有宾补，要用形式宾语it来代替，而把宾语从句移至宾补之后。Hehasmadeitclearthathewouldnotchangehismind.
3)在think,believe,suppose,expect等动词后的宾语从句中，如果谓语是否定的，一般将否定词移至主句谓语上，宾语从句则变成肯定形式。Hedidn"tthinkthatthemoneywaswellspent.
3.表语从句
表语从句出现在结构为“主语+系动词+表语从句”的句子中。表语从句除可用that,what,when,why,whether,how等引导外，还可由because,asif(though)等引导。that常可省略。如主句主语为reason,只能用that引导表语从句，不可用because.
PerhapsthemostimportantthingtorememberisthatthereisnoonecommontypeoflifeinAmerica.
Thereasonwhysomanypeoplediedthereisthattherewerenotenoughfoodsupplies.Itlooksasifsuccessfulinternationalculturalcommunicationwillmaketheworldsmaller.
4.同位语从句
同位语从句用于对前面出现的名词作进一步说明，一般用连词that引导，由于先行名词的意义不同，也可用whether,who,when,where,what,why,how等引导。常见的先行名词有fact,idea,belief,news,hope,conclusion,evidence,suggestion,order,problem,report,decision.有时由于谓语较短，将同位语从句位于谓语之后。
Shefinallymadethedecisionthatshewouldjointhefashionshow.
IhadnoideahowmanybooksIcouldborrowatatime.
Thenewscamethattheirteamhadwonthechampionship.
5.定语从句
定语从句所修饰的先行词可以是名词或代词，也可以是一个句子。定语从句通常位于先行词之后，由关系代词或关系副词引导。
*限制性定语从句
限制性定语从句修饰先行词，对先行词起修饰作用，紧接先行词之后，无逗号，若省去，原句意思不完整。引导定语从句的关系代词有who,whom,whose,which,that等。who,whom,whose用于指人，whose有时也可指物，相当于ofwhich；which用于指物；that既可指人也可指物，但只用于限制性定语从句中。关系代词除了引导定语从句，替代先行词外，还在从句中担任主语、宾语、定语等。
ThecomputersandcableswhichmakeuptheInternetareownedbypeopleandorganizations.
Thosewholivealoneorwhoaresickmayhavetroubleingettingclosetootherpeople.
Thegirlwhoseparentsdiedinanaccidentislivingwithhergrandmother.
1)当先行词是all,anything,everything,something,nothing等不定代词或先行词前有first,last,any,few,much,some,no,only以及形容词最高级修饰时，只能用关系代词that引导从句。ThatisallthatI"veheardfromhim.
He"sthefirstpersonthatI"mgoingtointerviewthisafternoon.
2)关系代词的省略
在从句中作宾语的关系代词常可省略。关系代词紧跟介词，作介词宾语时不可用that，只可用which或whom引导从句，并且不可省略，但当介词位于宾语从句句末时，作为介词宾语的关系代词仍可用that，也可省略。
Thisisoneofthosethingswithwhichwehavetoputup.
Thisisoneofthosethings(which\\that)wehavetoputupwith.
3)引导定语从句的关系副词有when,where,why等。关系副词在从句中作状语，意义上相当于一个“介词+which”的结构。
Evenincomicbookswhere(=inwhich)therearenowords,thestoriesarefullyexpressedthroughthedrawings.
Nooneknowsthereasonwhy(=forwhich)hewassoangrythatday.
5.定语从句*非限制性定语从句
非限制性定语从句既可修饰先行词，也可修饰整个主句，起补充说明作用，与主句之间有逗号隔开，若省去，原句意思不受影响。不可用that引导非限制性定语从句。关系词不可省略。
Everyobjecthasagravitationalpull,whichisratherlikemagnetism.
*“介词+which\\whom\\whose”引导的定语从句
“介词+which\\whom\\whose”可引导限制性定语从句，也可引导非限制性定语从句，该结构中介词的选择取决于从句谓语动词的固定搭配，或先行词的习惯搭配。
Thisisthecomputeronwhichhespentallhissavings
Itiswrittenbyapersonwithwhomweareallfamiliar.
*as引导的定语从句
as引导的定语从句主要用于“such...as”及“thesame...as”的结构中，代替先行词是人或物的名词。as引导非限制性定语从句时，代替整个主句，从句可位于主句之前、之后或中间。
Thesearenotsuchproblemsascanbeeasilysolved.(as代替先行词problems)
Asismentionedabove,nosinglecompanyorgroupcancontrolwhathappensontheInternet.(as代替主语)
6.状语从句
*时间状语从句
引导时间状语从句的从属连词和词组有：
1）when,whenever,while,as,after,before,since,till,until,once等。Wehavelearntquitealotaboutitsincewecamehere.2)assoonas,hardly(scarcely)...when,nomoment,immediately(that)等。
sooner...than,each(every)
time,the
AssoonasIsentane-mailmessage,Ireceivedpositiveresponses.Themomentheheardthegoodnews,hejumpedwithjoy.
*地点状语从句引导地点状语从句的连词是where,wherever.
Wherevershewent,shetookherlittledaughterwithher.
*原因、结果和目的状语从句
1）引导原因状语从句的从属连词有：because,as,since,now(that),seeingthat,consideringthat,inthat等。
Consideringthatheisafreshman,wemustsayheisdoingwell.2)引导结果状语从句的连词有：so...that,such...that,sothat,that,so等。
MickeyMouseissoattractivethatthechildrenarereluctanttoleave.
3)引导目的状语从句的连词有：sothat,inorderthat,forfearthat,lest等，从句常使用may,might,can,could,would等情态动词。
Wegotupearlythismorningsothatwecouldcatchthefirstbustotherailwaystation.
*条件和让步状语从句
1）引导条件状语从句的连词和词组有if,unless,as(so)longas,onconditionthat,incase,provided(providing)that,supposing等。
Aslongasyouhavetherightequipment,youcanuseatelephonelinetotransmitcomputerdata.2)引导让步状语从句的连词和词组有though,although,whether,eventhough,evenif,nomatterwhat(when,how...),whatever(whenever,wherever,however....)等。though,evenif等引导状语从句可转换成含有as的部分倒装结构，具有强调意义。其结构为“形容词（副词、动词、名词）+as+主语+谓语”。
Nomatterwhatyoumaysay,Iwouldnotchangemymind.
Youngasheis,heisquiteexperiencedinthiswork.(=thoughheisyoung)Childasheis,hecanspeakEnglishfluently.(=thoughheisachild)
*方式状语从句
引导方式状语从句的连词有as,justas,asif,asthough等。asif,asthough引导的状语从句中，谓语动词常用虚拟语气，表示与事实相反。
Theyoungmanmadetheexperimentjustastheteacherhadtaughthim.Everythingwentonasusualasifnothinghadhappened.
扩展阅读：英语中六大从句用法总结
英语中六大从句用法总结1.主语从句
1）主语从句可直接位于主语的位置，如果从句较长，谓语又较短，可用it作形式主语，而将从句放在句末。常见的句型有：*Itisafact\\apity\\aquestion\\goodnewsthat...*Itseems\\appears\\happened\\hasturnedoutthat...*Itisclear\\important\\likely\\possiblethat...
*Itissaid\\reported\\estimated\\hasbeenprovedthat...
Itissaidthatcomicbookscreateaconnectionbetweenpeopleofthesamegeneration.
Itseemsthattheperformanceisveryuseful.
2)what引导的主语从句表示“...的东西时”，一般不用it作形式主语。Whatwelackisexperience.
3)what,who,when,why,whether等词含有各自的疑问意义，但它们引导的主语从句，都用陈述语序。
Howtheplanistobecarriedoutshouldbediscussedagain.IdidknowwhyIfeltlikecrying.
2.宾语从句1）宾语从句可位于及物动词、介词和某些形容词后。连词that常可省略。介词后一般接疑问词引导的宾语从句。inthat(因为),exceptthat(除了),butthat(只是）已构成固定搭配，其他介词后一般不接that引导的宾语从句。
*IpromisedthatIwouldchangethesituation.
*AllthisisdifferentfromwhatAmericanyoungpeoplewouldsayaboutfriendship.
*Heiscertainthatwatchingsomuchtelevisionisnotgoodforchildren.
*Thisarticleiswell-writtenexceptthatitisabittoolong.
2)宾语从句后如有宾补，要用形式宾语it来代替，而把宾语从句移至宾补之后。
Hehasmadeitclearthathewouldnotchangehismind.
3)在think,believe,suppose,expect等动词后的宾语从句中，如果谓语是否定的，一般将否定词移至主句谓语上，宾语从句则变成肯定形式。Hedidn"tthinkthatthemoneywaswellspent.3.表语从句
表语从句出现在结构为“主语+系动词+表语从句”的句子中。表语从句除可用that,what,when,why,whether,how等引导外，还可由because,asif(though)等引导。that常可省略。如主句主语为reason,只能用that引导表语从句，不可用because.
PerhapsthemostimportantthingtorememberisthatthereisnoonecommontypeoflifeinAmerica.
Thereasonwhysomanypeoplediedthereisthattherewerenotenoughfoodsupplies.
Itlooksasifsuccessfulinternationalculturalcommunicationwillmaketheworldsmaller.
4.同位语从句
同位语从句用于对前面出现的名词作进一步说明，一般用连词that引导，由于先行名词的意义不同，也可用whether,who,when,where,what,why,how等引导。常见的先行名词有fact,idea,belief,news,hope,conclusion,evidence,suggestion,order,problem,report,decision.有时由于谓语较短，将同位语从句位于谓语之后。
Shefinallymadethedecisionthatshewouldjointhefashionshow.IhadnoideahowmanybooksIcouldborrowatatime.
Thenewscamethattheirteamhadwonthechampionship.
5.定语从句
定语从句所修饰的先行词可以是名词或代词，也可以是一个句子。定语从句通常位于先行词之后，由关系代词或关系副词引导。
*限制性定语从句
限制性定语从句修饰先行词，对先行词起修饰作用，紧接先行词之后，无逗号，若省去，原句意思不完整。引导定语从句的关系代词有who,whom,whose,which,that等。who,whom,whose用于指人，whose有时也可指物，相当于ofwhich；which用于指物；that既可指人也可指物，但只用于限制性定语从句中。关系代词除了引导定语从句，替代先行词外，还在从句中担任主语、宾语、定语等。ThecomputersandcableswhichmakeuptheInternetareownedbypeopleandorganizations.nbsp;
Thosewholivealoneorwhoaresickmayhavetroubleingettingclosetootherpeople.
Thegirlwhoseparentsdiedinanaccidentislivingwithhergrandmother.
1)当先行词是all,anything,everything,something,nothing等不定代词或先行词前有first,last,any,few,much,some,no,only以及形容词最高级修饰时，只能用关系代词that引导从句。
ThatisallthatI"veheardfromhim.
He"sthefirstpersonthatI"mgoingtointerviewthisafternoon.2)关系代词的省略
在从句中作宾语的关系代词常可省略。关系代词紧跟介词，作介词宾语时不可用that，只可用which或whom引导从句，并且不可省略，但当介词位于宾语从句句末时，作为介词宾语的关系代词仍可用that，也可省略。
Thisisoneofthosethingswithwhichwehavetoputup.Thisisoneofthosethings(which\\that)wehavetoputupwith.3)引导定语从句的关系副词有when,where,why等。关系副词在从句中作状语，意义上相当于一个“介词+which”的结构。
Evenincomicbookswhere(=inwhich)therearenowords,thestoriesarefullyexpressedthroughthedrawings.
Nooneknowsthereasonwhy(=forwhich)hewassoangrythatday.5.定语从句
*非限制性定语从句
非限制性定语从句既可修饰先行词，也可修饰整个主句，起补充说明作用，与主句之间有逗号隔开，若省去，原句意思不受影响。不可用that引导非限制性定语从句。关系词不可省略。
Everyobjecthasagravitationalpull,whichisratherlikemagnetism.*“介词+which\\whom\\whose”引导的定语从句
“介词+which\\whom\\whose”可引导限制性定语从句，也可引导非限制性定语从句，该结构中介词的选择取决于从句谓语动词的固定搭配，或先行词的习惯搭配。
ThisisthecomputeronwhichhespentallhissavingsItiswrittenbyapersonwithwhomweareallfamiliar.
*as引导的定语从句
as引导的定语从句主要用于“such...as”及“thesame...as”的结构中，代替先行词是人或物的名词。as引导非限制性定语从句时，代替整个主句，从句可位于主句之前、之后或中间。
Thesearenotsuchproblemsascanbeeasilysolved.(as代替先行词problems)
Asismentionedabove,nosinglecompanyorgroupcancontrolwhathappensontheInternet.(as代替主语)
6.状语从句
*时间状语从句
引导时间状语从句的从属连词和词组有：
1）when,whenever,while,as,after,before,since,till,until,once等。Wehavelearntquitealotaboutitsincewecamehere.
2)assoonas,hardly(scarcely)...when,nosooner...than,each(every)time,themoment,immediately(that)等。
AssoonasIsentane-mailmessage,Ireceivedpositiveresponses.Themomentheheardthegoodnews,hejumpedwithjoy.*地点状语从句
引导地点状语从句的连词是where,wherever.
Wherevershewent,shetookherlittledaughterwithher.
*原因、结果和目的状语从句
1）引导原因状语从句的从属连词有：because,as,since,now(that),seeingthat,consideringthat,inthat等。
Consideringthatheisafreshman,wemustsayheisdoingwell.2)引导结果状语从句的连词有：so...that,such...that,sothat,that,so等。
MickeyMouseissoattractivethatthechildrenarereluctanttoleave.
3)引导目的状语从句的连词有：sothat,inorderthat,forfearthat,lest等，从句常使用may,might,can,could,would等情态动词。
Wegotupearlythismorningsothatwecouldcatchthefirstbustotherailwaystation.
*条件和让步状语从句
1）引导条件状语从句的连词和词组有if,unless,as(so)longas,onconditionthat,incase,provided(providing)that,supposing等。
Aslongasyouhavetherightequipment,youcanuseatelephonelinetotransmitcomputerdata.
2)引导让步状语从句的连词和词组有though,although,whether,eventhough,evenif,nomatterwhat(when,how...),whatever(whenever,wherever,however....)等。though,evenif等引导状语从句可转换成含有as的部分倒装结构，具有强调意义。其结构为“形容词（副词、动词、名词）+as+主语+谓语”。
Nomatterwhatyoumaysay,Iwouldnotchangemymind.
Youngasheis,heisquiteexperiencedinthiswork.(=thoughheisyoung)
Childasheis,hecanspeakEnglishfluently.(=thoughheisachild)*方式状语从句
引导方式状语从句的连词有as,justas,asif,asthough等。asif,asthough引导的状语从句中，谓语动词常用虚拟语气，表示与事实相反。Theyoungmanmadetheexperimentjustastheteacherhadtaughthim.
Everythingwentonasusualasifnothinghadhappened.
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