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1、表语从句表语：表语是对主语的解释说明，并且常与连系动词一起使用，用来说明主语的身份，性质，特征和状态的，常用名词，代词，数词，v-ed,v-ing,副词，介词短语，形容词，不定式和从句来充当。We are Chinese.This book looks expensive. I.表语： 系动词：be动词、感官动词feel, smell, sound, taste、表持续：keep, remain, stay、表变化：become，grow, turn,get等，其他：prove, seem, appear等II 表语从句：The question is who will do it.III表语
2、从句的引导词1.从属连词：that / whether /as if /as though/as/because(1) that：that引导表语从句本身没有意义，只起连接作用，不充当句子成分，一般不能省略。(2)whether: 表示“是否”, 表从中只能用whether, 不能用if.(3)as if/though“好像”，引导表语从句时要注意语气: 如果句中的情况与事实不相符，从句多用虚拟语气。从句表示与现在事实相反,谓语动词用一般过去式；从句表示与过去事实相反时,谓语动词要用“had + 过去分词 ”，从句表示将来的可能性不大，用would (might ,could )+动词原形.L
3、i Lei is now in a new jacket. He looks as if he were an American boy. The girl is giving us a vivid description of the moon. It seems as if she had been to the moon many times. It looks as if it might rain. The clouds are gathering. It looks as if it is going to rain.(4)as引导表语从句He looked just as he
4、had looked ten years before.(5) because引导表语从句 常用结构：This/That/It is/was because这就是因为That is because I dont like Chinese.2.连接代词：who/whom/whose/what/which/whoever/whatever/whichever/whomeverTom is no longer what he used to be.The problem is whose work is the best.3.连接副词：when/where/how/whyThe question i
5、s how he did it. The question is where we can live. I had neither a raincoat nor an umbrella. Thats why I got wet through. IV注意1.陈述语序。The question is when can he arrive at the hotel._2The reason is that he got up late. Why he is late is that he got up late.reason做主语, 表语从句要用that来引导,而不用because；why引导主语
6、从句做主语时，表语从句用that引导，不用because。3.“That is because.”指原因或理由， “That is why.”则指由于各种原因所造成的后果。I was angry. That was because he didnt understand me. Thats why he got fired from that firm.4. 使用虚拟语气的表语从句在表示建议、劝告、命令、计划含义的名词后的表语从句，谓语动词需用“should+动词原形”表示虚拟语气，should可省略。常见的词有：My suggestion is that we （should） start
7、early tomorrow.5.表语从句的复合句中，主句时态和从句时态可以不一致。The question is who will travel with me to Beijing tomorrow.The question is why he cried yesterday.1.The question is whether we need more ice cream.问题是我们是否还需要一些冰淇淋。2.The problem was that it was too valuable for everyday use.问题是它作为日常之用太贵重了。3.It looked as if i
8、t was going to snow.看起来好像要下雪了。4.Thats because we never thought of it.这是因为我们从未想过此事。5.It seems as if he didnt know the answer.好像他不知道答案。6.The question is which of us should go.问题是我们哪一个应该去。7.The problem was who could do the work.问题是谁能做这项工作。8Thats what he is worrying about.那就是他在担心的事。9Thats what we should
9、 do.那是我们应该做的。10.That is what he is worried about.那就是他所担心的。11.Go and get your coat. Its where you left it. 去把雨衣拿来。就在你原来放的地方。12.I had neither a raincoat nor an umbrella. Thats why I got wet through. 我们既没伞也没雨衣，这是我们淋湿的原因。13.That is how mice ruin many stores of grain every year.那就是老鼠是怎样每年损害大量粮食的。14The pr
10、oblem is how we can get the things we need.问题是我们怎样能弄到我们需要的东西。 What I told him was that I would find him a good play. 我告诉他的是我会给他找个好剧本。That is what I want to tell you.那就是我想要对你讲的。That is why she failed to pass the exam. 那就是她考试不及格的原因。13. 那是因为他不了解我。That is because he didnt understand me.14.问题是我们是否能依靠他。The problem is whether we can rely on him.15.那是因为我们那是需要钱。Thats because we were in need of money at that time.16.听起来好像有人在敲门。It sounds as if someone is knocking at the door.17.那就是他出生的地方。That is where he was born.18.他看起来好像要哭了。He looks as if he was going to cry.19.他失败的原因在于她太粗心了。20.Jane不再是四年前的她的。
