名词性从句的引导词有以下几种: 1. that从句:说明一个事实; 如:He thinks that ...(宾语从句)或That fact is that...(表语从句) 2. wh-型从句:引出一个需要知道的问题 如:I wonder where he is from(宾语从句) It doesn' matter who has done it.(主语曾经) 3. if/whether从句:引出一个或然问题(是还是不是) 如:He wanted to make sure if they were at home(宾语从句) 4. 关系代词型从句:相当于汉语的“所...的(东西,地方,时间等)” 如:What you have done makes me surprised.(主语从句)。