高考英语定语从句和名词性从句讲解与综合训练名词从句有四类:宾语从句、主语从句、表语从句、同位语从句
例如:宾语从句:Idon’tknowwherehewillgo
主语从句:Wherehewillgoisunknown
表语从句:Theproblemishowwecangetsomuchmoney
同位语从句:Weallfeelsorryaboutthenewsthathefailedinthegame
下面几点是学习名词从句要加以注意的:1.whether和if都可以引导宾语从句表达“是否”意,(即引导宾语从句时if和whether可以互换)但以下几种名词从句要用whether(不用if)引导:(1)引导主语从句,且在句首时
例:Whetherhehaswonthetennisisnotknown
(但Itisnotknownwhether/ifhehaswonthetennis)
(2)引导表语从句时
例Theproblemiswhetherhecangetajob
(3)引导同位语从句时
例:Ihavenoideawhetherhewillcome
(4)介词后的whether从句
例:IworryaboutwhetherIhurtherfeelings
2.位于句首引导主语从句的that不可忘
例如:Thathegotthefirstplaceinthecompetitionsurprisedallofus
3.在“Itissuggested/proposed/ordered/apity/nowonder/necessary/strange/⋯+that从句”结构中,that从句谓语有时用(should)do这样的虚拟语气形式
例如:Itissuggestedthatwe(should)improvetherelationsbetweenus
Itisapityth