1、Grammar - Subject Clause 主语从句 A tree has fallen across the road. You are a student. To find your way can be a problem. Smoking is bad for you. What part does the underlined part serve as in each sentence? Subject（主语）（主语） “How do you do?” is a greeting. What she said is not yet known. That we shall b
2、e late is certain. It is certain that we shall be late. We can see from these sentences that a sentence serves as subject, so we call it Subject Clause. Subject Clause 主语从句 一、定义 主语从句是在复合句中充当主语的从句，通常放在 主句谓语动词之前；或由形式主语it代替，而本身放 在句子末尾。 How the book will sell depends on its author. It is important that
3、we all should attend the meeting. 二、主语从句的连接词 That he will win is certain. Whether hell join us in the discussion is of great importance. 1. 从属连词： that：只起引导作用，本身无实际意义，不充当任何 成分，但不能省略。 whether：意为“是否”，不充当从句的任何成分。 2. 连接代词who, what, which, whoever, whatever, whichever引导主语从句，包含意思，并在从句中充 当成分。 Who will meet
4、him is not decided. What you told me just now was really a surprise. Which class will win the football game is not clear. Whoever breaks the law should be punished. Whatever he says is of no importance. Whichever of you comes first will receive a prize. 1)_ you said yesterday is right. 2)_ she is st
5、ill alive is a consolation（安慰）. 3)_ he lost the bike worried him a lot. 4)_ caused the accident remains unknown. 5) _ made matters worse was_ night began to fall. 6) _ we cant get seems better than _ we have. What That That 注： what 与 that在引导主语从句时的区别 what 在从句中充当句子成分，如主语、宾语、表语， 而that 则不然。 What What th
6、at What what Where we will hold the basketball game tomorrow is not important. When she will be back is still a question. Why he came here is not known. How we can protect the grain from damp needs to be discussed. 3. 连接副词when, where, why, how等引导主语从句， 包含意思，并在从句中充当成分，不可省略。 主语从句三要素 谓 语 一 般 用 单 数 从 句 用
7、 陈 述 语 序 不 能 省 略 关 联 词 三、it做形式主语 为了避免句子头重脚轻，通常把形式主语it放在主语 位置，真正主语置于句末。 (1) It is 名词名词 主语从句主语从句. It is a fact that 事实是事实是.。 It is an honor that .非常荣幸。非常荣幸。 It is common knowledge that .是常识。是常识。 It is a pity/shame that. 遗憾的是遗憾的是.。 用it 作形式主语的结构 (2) It is 形容词形容词 主语从句主语从句. It is natural that 很自然很自然.。 It
8、is strange that 奇怪的是奇怪的是.。 It is unlikely that .不可能。不可能。 It is possible that .是可能的。是可能的。 (3) It is 不及物动词不及物动词 主语从句主语从句. It seems / appears that 似乎似乎. It happened that 碰巧碰巧. (4) It is 过去分词过去分词 从句从句. It is reported that 据报道据报道. It has been proved that 已证实已证实. It is said that 据说据说. It is suggested that
9、. 有人建议有人建议. Part One: Blanks filling Exercise 1. _we should invite to open the conference is a question. 2. _ it should last two days or three days doesnt matter. 3. _ wants the book may have it. 4. _many people will attend the conference has not been decided. 5. _ team will win the football match i
10、s still unknown. whether / that / who / which / when / why / what / how / whoever Who Whether Whoever How Which 6. It is uncertain_we should hold the conference, in May or June. 7. _so many people are interested in basketball is what we want to know. 8. _ there is life on another planet is almost im
11、possible. 9. It is still unknown_ will be sent to the States. 10. _make my life colorful in the school are my good friends and kind teachers. whether / that / who / which / when / why / what / how / whoever when Why That who What Part Two: Error Correction 1. He doesnt like them is very clear. That
12、he doesnt like them is very clear. 2.That has happened proves that my advice is right. What has happened proves that my advice is right. 3. What a pity it is because you didnt arrive by daylight. What a pity it is that you didnt arrive by daylight. 4. Because of my poor memory, that you told me has been forgotten. 5. If he has signed his name doesnt matter. 6. What is most important in life arent money. Because of my poor memory, what you told me has been forgotten. Whether he has signed his name doesnt matter. What is most important in life isnt money.
