SectionⅢGrammar-主语从句与表语从句[语法初识]原句感知自主探究①ItisafactthatEnglishhasbecomeaninternationallanguage
②ThebigsurpriseoftheeveningwaswhenIwaselectedpromqueen
③Itneveroccurredtomethatyoucouldsucceedinpersuadinghimtochangehismind
④Whatsomepeopleregardasadrawbackisseenasaplusbymanyothers
⑤It'swellknownthatAmericansarecompetitive
⑥Thatshehasbecameanartistmayhavebeenduetoherfather'sinfluence
⑦Whetherweshouldgothereremainsunknown
⑧Thefactisthatmorepeopleliveinthearea
⑨Helookedasthoughhewasill
⑩ThebookiswhereIputityesterday
(1)以上句中句②、⑧、⑨、⑩句中黑体部分均为表语从句,而句①、③、④、⑤、⑥、⑦句中黑体部分则为主语从句
(2)由句④和句⑥知,引导主语从句时,what要在从句中充当句子成分,而that不作任何成分,只在语法上起连接作用
句⑦中的whether不作成分,但有意义,表示“是否”
(3)句①、③、⑤中,it用作形式主语,代替that引导的主语从句
(4)句②、⑩中的引导词when,where是副词,在从句中作状语,分别表示时间、地点
[语法剖析]语法点一主语从句1
主语从句的引导词连词种类连词从属连词that,whether连接代词what,who,