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1、决战2011高考英语专题讲义名词性从句主语从句、表语从句、宾语从句和同位语从句，它们在复合句中的功用相当于名词，因此称为名词性从句，在句中分别作主语、表语、宾语和同位语。1．Whenhewillcomeisstillunknown.2．Idon’tknowwhohaswateredthefields.3．Theproblemisthatweneedmoremoney.4．Haveyouheardthenewsthatourteamwonthegame?1．主语从句：在复合句中作句子主语的从句。引导词：连词that、whether;疑问代词
2、who,what,which;疑问副词when,where,how,why(1)连词that（无词意）,whether(是否),在从句中不担任句子成分，只起连接作用;whether能引导主语从句，而if不能。Thatyoudon’tlikehimhasnothingtodowithme.WhetherJohnwilldothisexperimentremainsaquestion.（2）疑问代词who,what,which,在从句中既作连接词又充当主语、宾语、表语、定语等。Whowillbesentabroadtofurtherhisst
3、udiesisnotannounced.Whatsurprisedmemostwasthatsuchalittlegirlcouldplaytheviolinsowell.Whichschoolwillwintheprizeisnotknown.Whosedictionaryhasnotbeenfoundisstillunknown.Whicheveryoutakewillbeyours.Whoeverwantsthisbookmaytakeit.Whateverwassaidheremustbekeptsecret.(3)疑问副词whe
4、n,where,how,why在从句中充当时间状语、地点状语、方式状语、原因状语Whentheywillstarthasn’tbeendecidedyet.Wheretheheroinewentisnotmentionedattheendofthestory.Howhemanagedtofinishthecompositioninsuchashorttimeisstillamystery.Whyheoftencomeshereisknowntousall.(4)用it作形式主语的主语从句常用的句型有：It’ssaidthat…Itisce
5、rtainthat…Itseems/happensthat…It’spossible/important/necessary/clearthat…,该句型从句的谓语动词使用虚拟语气形式：should+动词原形。ItisnecessarythatweshouldlearnsomeEnglishgrammar.2.表语从句：在复合句中作句子表语的从句引导词有that,whether,what,which,who,whom,whose,when,where,why,how,because等（1）引导表语从句的that不省略，that仅起连接作用
6、，在从句中不充当任何成分，无任何意义Theimpressionhemakesonmeisthatheisareliableperson.(1)thereason后面的表语从句只能用that引导，我们学生易犯“thereasonisbecause…”的错误Thereasonwhythelittleactresshasbeensuchasuccessisthatsheisbothcleverandhard-working.(2)在表示命令order等，建议suggestion,advice等的名词后的表语从句中，谓语动词要用虚拟语气：shou
7、ld+动词原形，should可省略Hissuggestionisthatwe(should)holdanothermeetingtodiscusstheproblem.(3)whether可引导表语从句，表“是否”，它在从句中不充当成分，if不能引导表语从句。Thequestioniswhetherwecanrelyonhim.(4)连接代词what,which,who,whom,whose除起连接作用外，还在从句中做主语、宾语、表语和定语。That’swhatheisworriedabout.（在从句作中宾语）Theproblemisw
8、hocandothework.（在从句中作主语）（6）连接副词when,where,why,how起连接作用外，还在从句中作状语。That’swhyIwaslate.Thatiswherehe
