名词性从句 Noun clause
名词性从句和名词一样,在句中可担任主语、表语、宾语和同位语;
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。
必背:
whoever= any one who = no matter who
whomever= any one whom = no matter whom
whosever= any one whose = no matter whose
whichever= anything that = no matter which
whatever= anything that = no matter what
what =先行词+ which/ that
I doubt (am not sure) whether / if … 我怀疑… …是否… …
I don’t doubt (am sure) that… 我毫不怀疑… …【don’t doubt= believe】
I doubt whether he can speak English.
Do you doubt that he can speak English?
名词从句中应注意事项:
that可用于主语从句、表语从句、宾语从句和同位语从句中。在这些从句中它只起连接作用,在从句中不担任成分,本身没有词义。that引导主语从句和宾语从句时,要移动到后面,用形式主语和形式宾语表达;
连接代词和副词在名词从句中都不能省略。连接代词who, whom, whose, which, what在名词从句中除了起连接作用外,还在从句中担任主语、宾语、表语等成分;
连接副词when, where, how, why除了起连接作用外,还在从句中做状语,保留其疑问意义,没有先行词;
名词性从句,除宾语从句外,其它时态不受主句限制。