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1名词性从句思维导图易考易错点总结名词性从句包括主语从句、宾语从句、同位语从句和表语从句。考查的要点主要是连接代词和副词的正确使用、主语和谓语的语序、双重连接词以及特殊句型的使用等。具体包括：1．考查名词性从句的连接词。如：有词义的连接代词包括who,whose,whom,what,which；连接副词有when,where,why,how；从属连词有that,whether,if,asif；that无词义，在从句中不作成分，有时可省略。2．考查名词性从句的语序和时态。3．考查it作形式主语、形式宾语的情况。如：(1)It＋be＋形容词(necessary,important,obvious等)＋that从句；(2)It＋be＋过去分词＋that从句；(3)It＋be＋名词(asurprise,afact,ashame,anhonour等)＋that从句；(4)It＋不及物动词(appear,happen等)＋that从句。4．考查名词性从句中的虚拟语气。如：(1)Itis/was＋essential/important/natural…＋that…；(2)Itis/wassuggested/demanded/wished/desired…＋that…等。5．考查what引导名词性从句时的语义功能和语法功能。如：what＝thethingthat/anythingthat；what＝theplacethat；what＝thetimethat；what＝thepersonthat等。6．考查whoever，whatever，whichever引导名词性从句时的语义功能和语法功能。七大常考考点:1.that\what\which;2.it形式主语、宾语的用法;3.语序问题;4.同位语从句和定从的区别;5.what\whatever…6.if\whether;7.虚拟语气问题;五、相关习题集中练习一.相关概念21.名词：表示人或事物的名称的词2.名词的句法作用：名词在句中主要作___,_____,表语和______。3.名词性从句：在英语的句子结构中，本来该由名词充当的主语、宾语、表语和同位语，由一个____来充当,这个句子就叫:名词性从句。二、名词性从句的种类1.Whenwewillstartisnotclear.______从句2.Mrs.Blackwon’tbelievethathersonhasbecomeathief._____从句3.Myideaisthatweshoulddoitrightnow.______从句4.Ihadnoideathatyouwereherfriend._______从句三、常见引导词：1）连接词：that,whether,if（不充当从句的任何成分）。从属连词that只引导，本身无意义，仅起__作用。（引导宾语从句时可省，但是如果是并列的多个宾语从句，只能省第___个）Thathelikesyouisveryobvious.很显然他喜欢你。2）连接代词who,whom,what,which,whoever,whatever,whichever等，均有各自的意义，在从句中作主语、宾语、定语等。如：That’swhyshewantedtoleave.这就是她想离开的原因。Whenwearrivedoesn'tmatter.什么时候到没有关系。Tellmewhichoneyoulikebest.告诉我你最喜欢哪一个。3）连接副词where,when,how,why等，有意义，在句中作状语Thequestionishowweshouldcarryouttheplan.问题是怎样执行这个计划。Whenshe’llbebackdependsmuchontheweather.她什么时候回来在很大程度上要看天气。Whyhediditwillremainapuzzleforever.他为什么这样做将永远是一个谜4）从属连词if,whether（是否）(if只能引导动词、形容词之后的宾语从句)1.______hesaidhasnothingtodowithyou.2.______we’llstarttomorrowwillbetoldsoon.3.______hedidsuchathingsatisfiedme.4.______wecanprotectculturalrelicsneedstobediscussed.四．四大从句讲解1.主语从句作句子____语的从句叫主语从句。主语从句通常由从属连词___，whether，if和连接代词what，who，which，whatever，whoever以及连接副词how，when，where，why等词引导。that在句中无词义，只起___作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。如：____hewantstotellusisnotclear.他要跟我们说什么，还不清楚。Itisknowntous____hebecameawriter.我们都知道他是如何成为一名作家的。_____theEnglisheveningwillbeheldhasnotyetbeenannounced.英语晚会将在哪里举行，还没有宣布。有时为避免句子头重脚轻，常用形式主语it代替主语从句作形式主语放于句首，而把主语从句置于句末。主语从句后的谓语动词一般用__数形式。常用句型如同位语是对前面的名词或代词做进一步的解释，通常由名词、数词、代词或从句担任如：3（1）It+be+名词+that从句（apity,ashame,afact,awonder,anhonor,nowonder,asurprise）如：你考试失败了真是遗憾_____________________________（2）It+be+形容词+that从句（clear，important，necessary，probable，possible）Itiscertainthatshewilldowellinherexam.（3）It+be+动词的过去分词+that从句(said,reported,thought,hoped,believed,known)coralreefs-珊瑚礁如:据报道，珊瑚礁正遭受破坏。________________________________________（4）It+不及物动词+that从句（seem,happen,appear）如：碰巧那天我出去了。______________________________________________另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should)+do”，常用的句型有：Itisnecessary(important,natural,strange,etc.)that…Itisapity(ashame,nowonder,etc.)that…Itissuggested(requested,proposed,desired,etc.)that…练习题：(1)____hewillcomeiscertain.(2)_____sheiscomingornotdoesn’tmattertoomuch.(3)____surprisedmemostwastoseesomeofthevillagepeopleseatedonthebenchesattheendoftheroom.(4)_____teamwillwinthematchisamatterofpublicconcern.(5)____shehasgoneisnotknownyet.1.____isknowntoall,TaiwanisonlypartofChina.2.Itisknowntoall____TaiwanisonlypartofChina.3.ItwasonSunday___Imethim.1.Itisnecessarythatacollegestudent______atleastaforeignlanguage.A.mastersB.shouldmasterC.masteredD.willmaster2.Hissuggestionwasthatwe______anothermeetingtodiscussthequestion.AholdBwouldholdCheldDholding单句改错1.Thattheearthturnsaroundthesunareknowntoall.2.Whenthemeetingwillbeheldhaven’tbeenknownyet.3.Ididn’tknowthatyouwillcome.4.Hesaidthatheiswritingastory.5.Couldyoutellmewhenwillhearrive?翻译下面句子1)很显然你进步巨大。_______________________________________2)很遗憾你错过了音乐会。___________________________________3)你打电话时我碰巧不在家.______________________________________2.宾语从句名词句用作____的从句叫宾语从句。引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作谓语动词或介词的宾语。41.由连接词that引导的宾语从句由连接词that引导宾语从句时，that在句中不担任任何___，在口语或非正式的文体中常被___，但如从句是并列句时,第___个分句前的that不可省。例如：HehastoldmehewillgotoShanghaitomorrowandthathewillbebackintwodays.观察并思考：宾语从句中的连接词that在什么情况下不能省略？Everyoneknewwhathappenedandthatshewasworried.Thereasonliesinthatsheworksharderthantheothersdo.IthinkitnecessarythatyoushouldreadEnglishaloud.总结：_______________________________________________________________注意：表示“坚持、命令、建议或要求”等词出现时，不管是在哪一种从句中，常用虚拟语气，从句中的谓语动词形式为（should）+动词原形，其中should可省略。例如：（一坚持insist）（二命令command,order）（四建议advise,recommend,suggest,propose）（四要求demand,desire,request,require）以及他们的同根名词。Iinsistthatshe(should)doherworkalone.我坚持要她自己工作。Thecommanderorderedthattroops(should)setoffatonce.司令员命令部队马上出1)Mysuggestionisthatwe_______(go)tothecinematogether.2)Hisadvicethatwe__________(come)hereonthedotisveryreasonable.3)Theordercame_____thesoldiers______(destroy）thesmallvillagethenextmorning.2.用who，whom,which,whose,what,when,where,why,how,whoever,whatever,whichever等关联词引导的宾语从句相当于特殊疑问句，应注意句子语序要用____语序。例如：Iwanttoknow___hehastoldyou.我想知道他告诉了你什么。Shealwaysthinksof___shecan