高二英语名词性从句课件.ppt

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1、NounClause名词性从句1、本讲内容：学习名词性从句。2、学习要求：（1）掌握名词性从句的种类。（2）引导名词性从句的连接词。（3）初步学会运用名词性从句。名词性从句3、学习指导：（1）本讲重点：名词性从句的种类。（2）本讲难点：名词性从句的语序。4、典型例题解析：名词性从句包括主语从句、表语从句、宾语从句和同位语从句。它的功能相当于名词，引导名词性从句的引导词归纳起来可分为以下三类。功能例词从属连词只起连接作用，不充当从句中的任何作用。that,whether,if，asif（只用于表语从句）功能例词连接代词

2、既起连接作用，本身又做从句的主语、宾语、表语或定语。Who,whom,whose,what,which功能例词连接副词既起连接作用，本身又做从句的状语。when,where,why,how1、主语从句(1)Thathewillcomeiscertain.(2)Whethersheiscomingornotdoesn’tmattertoomuch.(3)Whatsurprisedmemostwastoseesomeofthevillagepeopleseatedonthebenchesattheendoftheroom

3、.(4)Whichteamwillwinthematchisamatterofpublicconcern.(5)Whereshehasgoneisnotknownyet.当主语从句较长时，多放在句子后部，用it作形式主语。以it作形式主语，把主语从句后置的常用句型有：1.It+be+形容词+that从句Itis/wascertainthat–clauseclearimportantnecessaryprobablepossible（1）Itiscertainthatshewilldowellinherexam.（2）

4、Itisprobablethathetoldhereverything.2、It+be+名词词组+that从句Itis/wasapitythat–clauseshameduty(1)Itisapitythatwecan’tgo.(2)Itisnosurprisethatourteamshouldhavewonthegame.3、It+be+过去分词+that从句Itissaidthat–clausereportedthoughthopedbelievedknown(1)Itissaidthatheisthebests

5、tudentintheclass.(2)ItisthoughtthatJoedrivesbadly.4、It+seem,happen,appear等不及物动词+that从句。(1)ItseemsthatAliceisnotcomingtothepartyatall.(2)IthappenedthatIwasoutthatday.(1)ThiswaswhatTomwasreading.(2)ThetruthisthatIhaveneverbeenthere.(3)Itlooksasifitisgoingtorain.(

6、4)Thereasonwhyhewaslatewasthathegotuplate.(5)Thisishowweovercamethedifficulties.(6)Thatiswhyshewasabsentyesterday.(7)ThehouseiswhereLuXunoncelived.2、表语从句：3、宾语从句1、用作及物动词的宾语(1)Theypretendedthattheywerereadingintheroom.(2)Ididn’tknowwhattheyweretalkingabout.(3)Doy

7、ouknowwhywinteriscolderthansummer?(4)Hecouldn’ttellwherehishomewas.(5)Johnmadetheboysitstill,promisingthatnothingwouldhurthim.引导宾语从句的连词that常可省去，特别在口语中是这样。注意：whether和if引导的宾语从句：whether和if引导宾语从句时可以互换使用，但下列情况用whether不用if。（1）在whetherornot结构中不可用if代替whetherIdon’tknoww

8、hetherornothe’llcome.Iwonderwhetheritistrueornot.（2）介词后面的宾语从句用whether，不用ifEverythingdependsonwhetherthesituationwillimprove.（后面要讲到介词后面的宾语从句）（3）引导主语从句和表语从句用whether不用ifWhether