高考英语语法总复习名词性从句知识讲解.pptx

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1、名词性从句一、名词性从句的种类名词性从句是起名词作用的从句，包括主语从句、宾语从句、表语从句、同位语从句。连接副词：when、why、where、how(在从句中作状语)引导词从属连词：that、if、whether（只起连接作用，在从句中不充当任何成分）连接代词：who、whom、what、which、whose、whoeverwhomever、whatever、whichever(在从句中担任成分，如主语、表语、宾语或定语等)二、引导名词性从句的连接词（1）主语从句Thathewillcometothepartyiscertain.Whetherwe'llgooutin

2、gdependsontheweather.Whodidtheworkisunknown.Whoeverleavestheclassroomshouldtellme.Whentheywillcomehasn'tbeenmadepublic.that引导主语从句时，常用it作形式主语，常见句型有：①it＋be＋形容词(如：obvious，true，natural，surprising，good，wonderful，funny，possible，likely，certain，probable，evident，clear，apparent等)＋that从句。Itisevidentt

3、hatlungcanceriscloselyrelatedtosmoking.②it＋be＋名词(如：nowonder，anhonour，agoodthing，apity，nosurprise等)＋that从句。It’sagreatpitythatit’sprobablythelasttimethiswillhappen.③it＋be＋过去分词(如：said，reported，thought，estimated，expected，decided，announced，arranged，recognized等)＋that从句。Itisknowntoallthatphysical

4、exercisescanimproveourphysicalandmentalhealth.类似句型还有：Itcannotbedeniedthat.../Itmustbeadmittedthat...④it＋动词(如：seem，appear，happen，occurtosb.，makenodifference等)＋that从句。Itsuddenlyoccurredtohimthathehadlefthiskeysintheoffice.that引导主语从句，置于句首时，that不能省略。Thatweareinvitedtoaconcertthiseveningisgoodn

5、ewstous.注意：宾语从句通常放在主句谓语动词、介词、形容词后Hesuggestedthatwe(should)makeatriptoHongKongnextyear.Iwonderwhetheritistrueornot.Oursuccessdependsonhowwellwecancooperatewitheachother.Iwassurprisedatwhathesaid.Heisconfident(that)hewilwin.（2）宾语从句如果宾语从句后面还有补语，需用it作形式宾语。Hemadeitclearthatthetaskshouldbecomple

6、tedbySunday.1.在口语或非正式问题中，引导宾语从句的that常省略，但在下面情况下，that一般不省略（1）当一个句子有两个或多个并列的宾语从句时，除第一个从句的that外，都不可省略。Hetoldme(that)thepowerwouldbecutoffandthatIshouldgetout.（2）形式宾语it后的that及介词后面的that不能省略。2.如果主句主语是第一人称，谓语动词是think,consider,believe,suppose,expect,fancy,guess,imagine等，后面的宾语从句含有否定意义，否定转移。Idon'tth

7、inkthisdressfitsyouwell.我认为这件衣服不适合你。注意：表语从句通常位于系动词be,look,remain,seem等之后Thereasonforhisabsencewasthathewasillinhospital.Thatiswhysheissohappy.Thatiswhereyouaremistaken.注：because,as,asif也可以引导表语从句。Thingsarenotastheyseemtobe.事情并不像表面上看起来的那样。Ithinkitisbecauseyouare