名词性从句知识点引导词

时间：2026-10-09 22:31:56来源：

名词性从句在英语中起着名词的作用，常由引导词引导。以下是常见的引导词及其用法总结：

引导词	用法说明	例句
that	不作成分，只起连接作用	I know that he is honest.
whether/ if	表示“是否”，多用于宾语从句	She asked whether I was coming.
who/ whom	指人，作主语或宾语	The teacher called who helped.
what	指物或事，作主语或宾语	I don’t know what he wants.
which	指特定范围内的某物	She chose which book to read.
when/ where	表时间或地点	Do you remember when we met?
why/ how	表原因或方式	He explained why he was late.

掌握这些引导词有助于准确理解与运用名词性从句。