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1、考向2 表语从句表语从句放在连系动词之后，充当复合句中的表语。 一、引导表语从句的关联词的种类： 1. 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 couldnt think of the right word. 当时，我似乎怎么也想不出一个恰当
2、的字眼来。 2. 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。 3. because，why引导的表语从句。 Thats because he didnt understand me. 那是因为他没有理解我。（Thats because.强调原因） Thats why he got angry with me. 那正是他
3、对我生气的原因。（Thats why.强调结果） 4. 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。5. 从属连词that Th
4、e trouble is that I have lost his address. 麻烦是我把他的地址丢了。【归纳拓展】学习表语从句应该注意以下几点。(1)通常只用that引导表语从句的情况。句子的主语为the reason时，表语从句采用that引导，表示原因，此时不用because。The reason why she was ill was that she had eaten bad meat 她生病的原因是她吃了变质的肉。句子的主语为the result时，表语从句采用that引导。The result is that many of them become fat 结果是他们中许
5、多人发胖了。由why引导的从句作主语时。Why we decided to put off the match is that the weather was too terrible 我们决定推迟比赛的原因是天气太糟糕了。(2)as if/though引导的表语从句通常置于系动词look，seem，sound，be等后面；表语从句既可以采用虚拟语 气，也可采用直陈语气。It sounded as if somebody was knocking at/on the door听起来好像有人在敲门。She treats him as if he were a stranger她待他如陌生人。经典
6、例题 1. Without his support, we wouldnt be _ we are now.A. how B. when C. where D. why【参考答案】C【答案解析】考查名词性从句。句意：没有他的支持，我们是不会在现在这个位置的。how表方式，when表时间，where表地点，why表原因。“_ we are now”是表语从句，结合句子的意思可知，该处指我们所处的位置，故该从句应用where引导。C选项正确。2. The most pleasant thing of the rainy season is _ one can be entirely free from dust.A. whatB. thatC. whetherD. why【参考答案】 B【试题解析】 考查表语从句。句意：雨季最令人愉悦的就是人们可以完全不再受到灰尘的困扰。is后跟从句作表语，即表语从句，表语从句不缺少主语、谓语和宾语，因此用that，that只起引导作用，故选B。