SectionⅢGrammar—复习名词性从句语法图解探究发现①WhatwefindoutfromspaceresearchisimportantforusonEarth
②It'swellknownthattheancientChineseinventedtherocket
③Wethinkitprobablethatheisdead
④Theteachershowedusthecontrolsofthespacecraftandexplainedhowgravityworked
⑤Theyinsistedthateveryone(should)cometotheparty
⑥Theproposalthatwe(should)importmoreequipmentfromabroadistobediscussedatthemeeting
⑦Ihavenoideawhenshewillbeback
⑧Thequestionremainswhethertheywillbeabletohelpus
⑨Theproblemiswhowecangettoreplaceher
[我的发现](1)①②句为主语从句,③④⑤句为宾语从句,⑥⑦句为同位语从句,⑧⑨句为表语从句
(2)②③⑤⑥⑧句中的引导词只起连接作用,在从句中不作成分,①⑨句中的引导词为连接代词,④⑦句中的引导词为连接副词
(3)②③句中使用了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
(4)⑤句中的that可省略,其他句中的that一般不可省略
(5)⑤⑥句中的从句使用了虚拟语气
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
一、名词性从句的连接词1.that(1)that只起连接词作用,引导名词性从句,在从句中不作任何成分,本身也没有词义
Thatheisstillaliveissh