微课课件名词性从句

微课课件名词性从句名词性从句NounClausesThefirstperiodGrammarandusage学习目标：1.Learnwhatisanounclauses;2.Learnthedifferencesbetween“whether”and“if”3.Learnthedifferencesbetween“that”and“what”.

观察以下句子Hisjobisimportant.Whathedoesisimportant.主语Thisishisjob.Thisiswhathedoeseveryday.表语｛｛Step1：Idon’tlikehisjob.Idon’tlikewhathedoeseveryday.宾语Idon’tknowabouttheman,Mr.White.Idon’tknowaboutthefactthatheisateacher.同位语｛｛什么叫名词性从句？名词性从句的功能相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语等因此根据它在句中不同的语法功能，名词性从句又可分为主语从句、宾语从句、表语从句和同位语从句。

名词性从句

nounclause

主语从句subjectclause

宾语从句objectclause

表语从句predicativeclause

同位语从句appositiveclausePractice:consolidation

辨析句子1.ThatIcanpaybackthehelppeoplegivememakesmehappy.2.Shebelievedthathehadnottoldherthetruth.

3.Theconductorhasmadeitclearthatnobuseswillberunning.宾语从句主语从句宾语从句Practice:consolidation

辨析句子4.Theproblemiswhetherwecanfinishitintime.5.Theideathattheyshouldtryasecondtimeisworthconsidering.表语从句同位语从句Step2

名词性从句的引导词可分为三类：

1.连接词：2.连接代词：3.连接副词：

名词性从句的引导词：连接词：that、if、whether不作成分无意义2.连接代词

：who、whom、whosewhat、which,whoever,whomever,whatever,whichever3.连接副词：when、where、why、howwhenever,wherever,however“是否”作主/宾/表作状语if和whether的选用？名词性从句连接词的选用Step3:“whether”和“if”区别只能用whether不用if的情况：1.与不定式连用时2.与or或ornot连用时3.引导主语从句，表语从句，同位语从句4.引导介词后的宾语从句时1.We’reworriedabout________heissafe.

2.Idon’tknow___________heiswellnow.

whetherwhether/ifPractice：3.Thequestionis______itisworthdoing.A.ifB.whetherC.whichD.what名词性从句连接词的选用

that和what的选用？Step4:that和what在定语从句和名词性从句的区别that

定语从句：指代先行词，在从句中可作主宾表

名词性从句：不作任何成分没有任何意义

what

what不用于引导定语从句what在名词性从句中可作主宾表

1.______hewantsisabook.2.______hewantstogothereisobvious.3.Theresultis____wewonthegame.

4.Ihavenoidea_____hedidthatafternoon.Practice3:Fillintheblankswith“that”or“what”.WhatThatthatwhatStep5:其它连接代词和副词的使用主要根据名词性从句中的具体意义,正确的选择who、which、when、where、why、how等连接词，这些连接词既具有疑问含义，又起连接作用，同时在从句中充当各种成分。Practice:.Thisis______Ileftmyglasses.where这就是我落下眼镜的地方。

Summary：1.Learnwhatisanounclauses.2.Learnthedifferencesbetween“whether”and“if”.3.Learnthedifferencesbetween“that”and“what”.Consolidation:______youdon’tlikehimisnoneofmybusiness.A.WhatB.WhoC.ThatD.Whether2.Thecityisnolonger____itusedtobe.A.thatB.whatC.whichD.when解题技巧：一想需要引导词引导什么从句二想需要引导词担当什么成分1.---Ithinkitisgoingtobeabigproblem.---Yes,itcouldbe.---Iwonder______wecandoaboutit.A.ifB.howC.whatD.that2._____shesaidsuggestedthat