高中语法主语从句-详解（无答案）

主语从句——Noun clauses as the subject 主语从句 如果一个句子在复合句中充当一个主语, 那么这个句子就是主语从句。 ①That he finished writing the composition in such a short time surprised us all. ②What we need are good doctors. ③Whom we must study for is a question of great importance. 1.主语从句的连接词 1).连接词: that, whether ①.That he will win is certain. ②.Whether he’ll join us in the discussion is of great importance. 2).连接代词: who, what, which, whom , whose, whoever, whatever, whichever ①.It is clear who is afraid of having a change in land ownership. ②.What India needs is a law to make land ownership fairer. 3).连接副词: when, where, why, how, how many, how much , how long, how soon, how often ①When we’ll start tomorrow will be told soon. ②Where we can buy oxen is something we need to find out. ③Why he came here is not known. ④How we can protect the grain from damp needs to be discussed. 【连接词】 1. that—— That the earth moves around the sun is well known. 2. whether——Whether he will come or not is not known yet. 3. who ——Who will be