名词性从句的种类.pptVIP

主语从句01宾语从句02表语从句03同位语从句04名词性从句的种类

例:误:Whenwillhecomeisnotknown.正:Whenhewillcomeisnotknown.主语从句一律用陈述句语序,即主语在前,谓语在后.主语从句注意点

连接词that在从句中无实际意义,但不能省略.例:误:Hewillnotcometothemeetingthiseveningistrue.正:Thathewillnotcometothemeetingthiseveningistrue.主语从句注意点

231whether可以引导主语从句,但if不能。例:误:Ifthemeetingwillbeheldisstillnotknow.正:Whetherthemeetingwillbeheldisstillnotknow.主语从句注意点

主语从句注意点4).为避免主语冗长,句子头重脚轻,经常用it作形式主语,主语从句放在后面作真正的主语.例:Itiswellknown/reported/thought/saidthat…Itisclear/necessary/certain/true/doubtfulthat…Itdoesn’tmatterwhether…/Itseemsthat…Itisapity/ashame/anhonorthat…

宾语从句一律用陈述句语序.01引导宾语从句的连词that也无实际意义,多数情况下可以省略.02宾语从句注意点

whether和if都可以引导宾语从句，但:当whether后紧跟ornot时,不用if.例:Idon’tknowwhetherIwillstayornot.介词后面的宾语从句不能用if.例:IworryaboutwhetherIhurtherfeeling.010302宾语从句注意点

表语从句一律用陈述句语序.01表语从句的引导词that无实际意义,但不能省略.02表语从句只能用whether,而不能用if引导.03表语从句注意点

不要使用Thereason…isbecausethat…句型,应使用Thereason…isthat…或This/it/that/isbecause…等句型.例：误:Thereasonwhyhewaslateisbecausethattherewasalotoftrafficontheroad.表语从句注意点

表语从句注意点Thereason…isthat…正:Thereasonwhyhewaslateisthattherewasalotoftrafficontheroad.This/it/that/isbecause…或:Hewaslate.Thatwasbecausetherewasalotoftrafficontheroad.

从性质上区别从词类上区别从引导词及其在句子中的成分上区别010203同位语从句和定语从句的三点区别：同位语从句注意点

从性质上区别：01定语从句是从句对其先行词的修饰或限制,属于形容词性从句的范畴;02同位语从句是从句对前面抽象名词的进一步的说明和解释,属于名词性从句的范畴。03同位语从句注意点

从性质上区别:Thenewsthathetoldmeyesterdaywastrue.Thenewsthatourteamhaswonthegamewastrue.0102同位语从句注意点

同位语从句的先行词只能是idea,fact,news,belief,suggestion等抽象名词。定语从句的先行词可以是名词、代词、主句的部分或是整个主句。010302从词类上区别：同位语从句注意点

从词类上区别:AWearenotlookingintothequestionwhetherheisworthtrusting.BOurteamhaswonthegame,whichmadeusveryhappy.C同位语从句注意点

从引导词及其在句子中的成分上区别:有些引导词如how,whether,what可以引导同位语从句,但不能引导定语从句。(if不能引导同位语从句)例：Ihav