表语从句例句有哪些？
表语从句例句：表语从句定义：在一个复合句中，从句作的是主句的表语成分。A、The problem is puzzling.这个问题令人困惑。主语＋连系动词＋形容词作表语The problem is when we can get a pay rise.问题是什么时候我们可以得到加薪。主语＋连系动词＋句子作表语（表语从句）B、连接表语从句的连接词有：that, what, who, when, where, which, why, whether, how, whoever，whichever，whatever等。还有如because, as if, as though等。His suggestion is that we should stay calm.他的建议是，我们应该保持冷静。The question is when he can arrive at the hotel.问题是，他什么时候可以到达酒店。定义：表语从句（Predicative Clause）就是用一个句子作为表语。表语（Predicative）的作用：说明主语是什么。可以由名词、形容词或相当于名词或形容词的词或短语充当表语的成分。然而要注意，表语从句属于名词性从句，只是表语的其中一种情况——由名词充当表语。常见的引导表语从句的从属连词（Subordinating Conjunction）有when，where，why，who，how，that。它们都有代词（Pronoun）词性，即具备名词（Noun）性质，所以可以引导主语从句、同位语从句、宾语从句、表语从句全部四种名词性从句。
什么是表语从句
表语从句（Predicative Clause）就是用一个句子作为表语。说明主语是什么或者怎么样，由名词、形容词或相当于名词或形容词的词或短语充当表语。,表语从句的定义：,表语从句放在连系动词之后，充当复合句中的表语。,表语从句的构成：,关联词+简单句,引导表语从句的关联词的种类：,可接表语从句的连系动词有be，look，seem，sound，appear等。,China is no longer what she used to be.,今日的中国不再是过去的中国了。,The question remains whether they will be able to help us.,问题还是他们能否帮我们。,At that time，it seemed as if I couldn't think of the right word.,当时，我似乎怎么也想不出一个恰当的字眼来。,从属连词whether，as，as if / though引导的表语从句。,He looked just as he had looked ten years before.,他看起来还与十年前一样。,It sounds as if someone is knocking at the door.,听起来好像有人在敲门。,because，why引导的表语从句。,That's because he didn't understand me.,那是因为他没有理解我。（That's because…强调原因）,That's why he got angry with me.,那正是他对我生气的原因。（That's why…强调结果）,what引导的主语从句表示结果或名词reason作主语时，后面的表语从句表示原因时要用that引导，不宜用because.,The reason why I was sad was that he didn't understand me.,我难过的原因是他没有理解我。,连接代词who，whom，whose，what，which，whoever，whatever，whichever,连接副词 where，when，how，why,The problem is who we can get to replace her.,问题是我们能找到谁去替换她呢。,The question is how he did it.,问题是他是如何做此事的。,That was what she did this morning on reaching the attic.,那就是她今晨上了阁楼干的。,从属连词that,The trouble is that I have lost his address.,麻烦是我把他的地址丢了。,使用虚拟语气的表语从句,在表示建议、劝告、命令含义的名词后的表语从句，谓语动词需用“should+动词原形”,表示，should可省略。常见的词有：advice，suggestion，order，proposal，plan，idea等。,My suggestion is that we （should） start early tomorrow.,我的建议是我们明天一早就出发。,应注意的问题：,连系动词be，appear，seem，look等之后可以跟表语从句。,It was because he didn't pass the exam.,那是因为他没有通过考试。,It seems（that）he was late for the train.,看来他没搭上火车。,It appears that she was wrong.,看来她错了。,It seems to me that we should answer for this.,在我看来，我们似乎应该对此事负责。,It appears to her that he wants to teach us all he has.,在她看来，他似乎要把他所会的都教给我们。,引导表语从句的引导词有以下几类。,wh-疑问词,My question is who left.,我想问的是谁离开了。,What I wonder is when he left.,我想知道他是何时离开的。,That's what he wants.,那是他想要的。,This is where they once lived.,这就是他们曾经住过的地方。,That is why he didn't e here.,这就是他为何没到这儿来的原因。,whether,My question is whether he left（or not）. ,我的问题是他是否离开了。,注：if不能引导表语从句。,that,The fact is that he left.,事实是他离开了。,注：引导表语从句的连词that间或可以省略。,The truth is（that）I didn't go there.,事实是我没去那儿。,because，as，as if，as though,It's just because he doesn't know her.,这是仅仅因为他不认识她。,Things are not always as they seem to be.,事物并不总是如其表象。,He looks as if he's tired.,他好像累了。
什么是表语从句？
表语常由名词、形容词、副词、介词短语、动名词、不定式、从句来充当。表语是说明主语的身份、性质、品性、特征和状态的词或从句，表语常由名词、形容词、副词、介词短语、动名词、不定式、从句来充当，它常位于系动词（be，become，appear， seem，look，sound，feel，get，smell等词）之后。例句：I am fine. （ fine 是形容词，作表语）He is a boy. （ boy 是名词，作表语）Five plus two is seven. （ seven 是数词，作表语）We are here. （ here 是副词，作表语）He is not at home. （at home 是介词短语，作表语）My hobby is reading. （ reading 是动名词，作表语）Our duty is to make our environment better.（to make 是不定式，作表语）表语从句表语从句的引导词和主语从句的引导词有区别。主语从句的引导词包括if,但if并不引导表语从句，只有一个特例是与as连用，用as if 引导表语从句；另外，表语从句的引导词也包括as,as though,because等。此外,that在表语从句中间不可以省略。而在主语从句中，有时是可以省略的。What the police want to know is when you entered the room.警察想知道的是你什么时候进的房间。The trouble is that we are short of funds.我们的困难是缺乏资金。This is what we should do.这是我们应当做的。That's why I want you to work there.那就是我要你在那儿工作的原因。
