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1、名词从句与定语从句的主要区别成分上的区别：名词性从句和定语从句分别在句中充当什么样的成分？1.Howtheprisonerescapedremainsamystery.2.Iwonderwhether/ifheisfitforthejob.3.Theproblemiswhowillbeequaltothetask.4.Hehadnoideawhetherwecouldovercomethepresentdifficultiesornot.主语宾语表语同位语5.Ivisitedthecountrywhich/thathadbeenbombedbytheUS-
2、ledNATO(美国为首的北约)amonthbefore．6.IshallneverforgettheyearswhenIlivedinthecountrysidewiththefarmers,whichhasagreateffectonmylife.7.IntheofficeIneverseemtohavetimeuntilafter5:30pm.,bywhichtimemanypeoplehavegonehome.8.IhadneverseensuchagoodfilmasIwatchedlastnight.结论：名词性从句充当句子的主要成分（作主语，
3、宾语，表语，同位语），且无先行词，同位语除外。定语从句充当句子的修饰成分（作定语），前面有先行词同位语从句和定语从句的区别：that作为关系代词,可以引导定语从句,充当句子的主语或宾语成分,在从句中作宾语时可以省略;that引导同位语从句时,起连词的作用,没有实际意义，不充当句子成分,一般不能省略。试比较下面两个例句:Thesuggestion(that)heraisedatthemeetingisverygood.（that引导定语从句,作宾语,可以省略）Thesuggestionthatthestudents(should)haveplentyofex
4、erciseisverygood.（that引导同位语从句）Ihadnoideathatyouwerehere.（that引导同位语从句,不能省略）Haveyougottheidea(that)thisbookgivesyouoflifeinancientGreece?（that引导定语从句,作宾语,可以省略）引导词的不同：不会出现在名词从句中的关系词：不会出现在定语从句中的关系词：as,且when,where等不能与in/on/atwhich互换。whether,if,what,how名词从句与定语从句的一些对应系：1.Hehasdonewhatheca
5、ntohelpme.--Hehasdone________hecantohelpme.WhatIwanttosayhasnothingtodowithit.--________Iwanttosayhasnothingtodowithit.allthatAllthat名词从句与定语从句的一些对应系：1.Hehasdonewhathecantohelpme.--Hehasdone________hecantohelpme.WhatIwanttosayhasnothingtodowithit.--________Iwanttosayhasnothingtodow
6、ithit.allthatAllthat3.Whoeverbreaksthelawistobepunished.____________breaksthelawistobepunished.4.Hewillgivethedictionarytowhoeverneedsifmost.Hewillgivethedictionaryto__________needsitmost.5.We’llrememberwhomeverweturnedtoforhelp.We’llremember______________weturnedtoforhelp.Anyonew
7、hoanyonewhoanyone(whom)6.Theywilldowhateverhewantsthemtodo.Theywilldo____________hewantsthemtodo.7.I’llreadwhicheverbookyougiveme.I’llread____ofthe books_____ yougiveme.anythingthatanythat名词性从句考点主要有以下六个方面:考点之一:考查名词性从句中that与what的区别考例:_______wecan'tgetseemsbetterthan_______wehave.A.
8、What;whatB.What;thatC.That;thatD.
