SectionⅢGrammar——名词性从句语境自主领悟先观察原句后自主感悟①WhatwefindoutfromspaceresearchisimportantforusonEarth
②It'swellknownthattheancientChineseinventedtherocked
③Wethinkitprobablethatheisdead
④Theteachershowedusthecontrolsofthespacecraftandexplainedhowgravityworked
⑤Theyinsistedthateveryone(should)cometotheparty
⑥Theproposalthatwe(should)importmoreequipmentfromabroadistobediscussedatthemeeting
⑦Ihavenoideawhenshewillbeback
⑧Thequestionremainswhethertheywillbeabletohelpus
⑨Theproblemiswhowecangettoreplaceher
句①②为主语从句,句③④⑤为宾语从句,句⑥⑦为同位语从句,句⑧⑨为表语从句
句②③⑥⑧中的引导词为连接词,在从句中不作成分,句①⑨中的引导词为连接代词,句④⑦中的引导词为连接副词
句②③中使用了it作形式主语或形式宾语,而真正的主语从句或宾语从句后置
句⑤中的that可省略,其他句中的that一般不可省略
句⑤⑥中的从句使用了虚拟语气
名词性从句分为主语从句、宾语从句、表语从句和同位语从句
考点一名词性从句的引导词引导名词性从句的连接词分为三类:1.连词:that,whether,if2.连接代词:what,whatever,who,whoever,whom,whos