微课课件名词性从句.ppt

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appositiveclause

Practice: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whatwhat不用