江苏省 2013 年高三英语考前赢分 30 天第 13 天考前赢分第 13 天 爱念才会赢核心知识主语从句引导主语从句的词 连接词：that, wh ether 连接代词：what, whatever, who, whoever, whom, whose, which. 连接副词：when, where, how, why主语从句在句子中充当主语, 句子的谓语动词多用第三人称单数。Why he refused to work with you is still a mystery.Whoever comes is welcome.That he is still alive is surprising. Who will win the match is still unknown.What he wants to tell us is not clear.Where the party will be held has not yet been announced.Whoever breaks the rules will be punished.主语从句前的 that 不能省略, 仅起连接作用, 有时为了保持句子平衡, that 从句后置, 而由 it 作形式主语。It is not true that he has moved to New York.用 it 作形式主语的 that-从句有以下四种不同的搭配关系：b. It + be + -ed 分词+ that-从句 It is believed that… 人们相信…… It is known to all that… 从所周知…… It has been decided that… 已决定……c. It + be +名词+ that-从句 It is common knowledge that………是常识 It is a surprise that… 令人惊奇的是…… It is a fact that… 事实是……另注意，在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should) +do”，常用的句型有：It is necessary (important, natural, strange, etc.) that … It is a pity (a shame, no wonder, etc.) that… It is suggested (requested, proposed, desired, etc.) that…经典例题1. _____ is known to us all is that the 2008 Olympic Games will take place in Beijing. A. It B. What C. As D. Which2. It has been proved _____ eating vegetables in childhood helps to protect you against serious illnesses in later life.A. if B. because C. when D. that［标准答案］D。［试题分析］此题考查 that 引导的主语从句的用法。句中的 it 是形式主语，真正的主语是 eating vegetables in …life, 所以要 that 引导这个主语从句，...
