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1、Subject Clauses 主语从句,1. 基本结构/连接词 /,2. 形式主语句型,3. 主语从句的主谓一致,4. 主语从句的虚拟语气,主语从句:,就是在复合句中充当主语的名词性从句。,连接词： that, whether,连接代词： who ,whom Whose, what, which,连接副词： when, why where, how,陈述句,谓语其他,1)That she left him hurts him so much.,*她离开了他这事让他很受伤。,2)Whether it will rain tomorrow is not easy to say,*明天是否会下雨很
2、难说。,3) What we need is more practice.,我们所需要的就是更多的练习。,4)When we will begin the meeting is under discussion.,*我们将何时开始会议还在讨论当中。,1. 基本结构/连接词 /,2. 主语从句：从句在句中充当主语成分,1). That he will succeed is certain . 2) Whether he will go there is not known . 3) What he said is not true . 4) Where he hid the money is t
3、o be found out . 5) Its certain that well visit the Great Wall .,6) How we can help the twins will be discussed at the meeting.,7)When theyll start the project has not been decided yet.,*_(他是否要来)is not yet known. *_(他想告诉我们什么)is not clear. *_(谁会赢得这场比赛)is still unknown. *_(你错过了这次机会)is a pity. =It is _
4、.,Exercise 1:,Whether he will come or not,What he wants to tell us,Who will win the match,That you missed the chance,a pity that you missed the chance,为了避免主语冗长,句子头重脚轻,经常用_作形式主语,主语从句放在后面作真正的主语.例: 1. That the earth is round is known to all. - 由连词 whether 和 if, 连接代词 what,who,which 和连接副词 when,where,why,
5、how 等引导.也 常常后置:,It is known to all that the earth is round.,it,2. 形式主语句型,that/whether/wh-引导的主语从句,+,基本结构：,it+,be+ 表语,不及物动词,be+ done,这样就构成了下面一些常用句型: 1) It is + n. +从句 It is a pity/shame that. It is a surprise that It is a fact that It is common knowledge that Its no wonder that Its a common saying. *_
6、(很遗憾)we lost the match. *_(这是事实)he cheated in the exam.,It is a pity that,It is a fact that,遗憾的是,令人惊奇的是,是事实,是常识,并不奇怪/难怪,（俗话说）,2) It is + adj. +从句 Its certain that It is possible that. It is unlikely that. It is obvious that It is necessary important natural. that *_(很可能)she will come back tomorrow.
7、*_(很明显)this measure is effective.,+(should) +do,It is possible that,It is obvious that,肯定,很可能,不可能,很明显,3) It +不及物动词+从句 It happened that. It occurred to me that *_(刚好)I came into the office at that time. *_(我突然想起)I forget to send the letter.,It happened that,It occurred to me that,碰巧,我突然想起,4) It + be
8、+过去分词+从句 It is said that. It is known to all that. It is reported that. It is believed that. It is suggested that + (should）do. It must be admitted that It cannot be denied that It must be pointed out that *_(据报道)20 people were killed in the accident. *_(建议)we should eat more vegetable and do more e
9、xercise.,It is reported that,It is suggested that,据说,众所周知,据报道,据信;人们相信,建议,必须承认,不可否认,需指出的是,注意：主语从句中 ，谓语动词一般用单数 When well leave for BJ _ under discussion What引导的主语从句，可根据表语决定 What he needs _that book. What he needs _some books.,is,are,is,3. 主语从句的主谓一致,what引导名词性从句时在从句中充当句子成分,如_,而that则不然,它在句子中只起_作用。例如： 1 _
10、you said yesterday is right. 2 _she will come to my party is certain. 3 _we shall do next is not clear.,考点三：What 与 that 引导主语从句,4 _ is known to all. (地球是圆的),That the earth is round,5. _ is a pity. (你错过了这次机会),That you missed the chance,what,what,That,主语,宾语,表语,连接,_ he made an important speech at the me
11、eting was true. A. That B. Why C. What D. How,2. _well go camping tomorrow depends on the weather . A If B Whether C That D Where,3._ is known to us all is that America is a developed country_the First World. Which; belong to b. As, belonged to c. What; belonging to d. It; belonging to,Practice,4. Its known to us all _ a form of energy . A. water is B. that water is C. is water D. that water to 5. It worried her a bit _ her hair was turning gray. A. whether B. that C. what D. when 6.What I say and think _ none of your business. A. is B. are C. has D have,
