高中英语 高考必考语法点表语从句(共21页PPT)

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表语从句的结构： 主语 + 系动词 + 连接词 + 简单句（陈述语气）
That
is
why
he did it
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表语从句做题技巧
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（1） 判断从句类型（看主句） （2） 连接词在从句中作什么成分
主句完整-------- 定语从句/ 状语从句/同位语从句 主句不完整-----主语从句/宾语从句/表语从句 （3） 看意思
我的建议是我们应该告诉他。
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(2)whether引导的表语从句 The question remains whether they will be able to help us. 问题还是他们能否帮我们。 [注意] if不能引导表语从句。
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(3) 连接代词和连接副词引导的表语从句 连接代词：who（主格）whom（宾格）,whose（所有格）
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表语从句中的虚拟语气 在表语从句中，表示间接的命令、要求、请求、建议、决定等， 主句中的主语通常是：advice, suggestion, proposal, request,
order, idea等，从句谓语形式是“should＋动词原形”(should
可以省略，但不可换成would)。 My suggestion is that we (should) start early tomorrow. 我的建议是我们明天一早就出发。
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源自文库
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1
系动词
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系动词：表示主语是什么或怎么样，不表具体动作 表状态：be, stay, keep, remain, lie, stand, exist 表感官：feel, smell, taste, look, sound 表变化：become, go , get, turn, fall 表像： seem , appear 表终止：prove, turn out
house. 9. The question is __w_h__e_th__e_r she is willing to marry you. 10.This is _b_e_c_a__u_s_e___ he broke the law.
what（什么）,which（哪个，哪些） 3. 连接副词：when（什么时候） where（什么地方）
why（为什么）, how（怎样）
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The problem is how we can find him. 问题是我们如何找到他。 He is no longer what he was. 他已经不再是以前的他了。 That's where you are wrong. 那就是你不对的地方。
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表语从句
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表语和表语从句：
1. The house is beautiful and large. 2. Tom is a student. 3. My job is to teach you English. 表语是用来说明主语的特征，身份，性质，或状态等。
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2．连接词的用法 (1)that引导的表语从句
用法：①无意义 ②不充当成分 ③不可省略
The trouble is that she has lost his address.
麻烦的是她弄丢了他的地址。
My suggestion is that we should tell him.
stolen. 3. The earth of today is not __w_h__a_t__ it was millions of
years today. 4. She is not ___w_h__a_t___ she used to be. 5. The question is _w__h_e_n___ we’ll complete the work. 6. This was _w_h_e_r_e__ Salt Lake City now lies. 7. That was _h_o__w___ the Chinese first raised silk worm. 8. My suggestion is __t_h_a_t____ we should research the
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This is why he is late for school. The problem is who could do the work. She looked as if she understood the question.
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概念：在主从复合句中充当表语的 从句，叫作表语从句。它常位于系 动词之后，用来说明主语是什么或 怎么样。
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why和because引导的表语从句的区别
That's why ...
意为“那是……的原因”， 强调结果
That's because ...
意为“那是因为……”， 强调原因
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I didn't phone her, and that's why she got angry with me. (强调“没打电话”这一结果) 我没有给她打电话。那就是她对我生气的原因。
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(4)because, as if/as though等引导的表语从句
It sounds as if someone is knocking at the door.
听起来好像有人在敲门。
That's because you can't appreciate music.
那是因为你不会欣赏音乐。
I didn't phone her, and that's because I got angry with her. (强调“生气”这一原因) 我没有给她打电话。那是因为我生她的气了。
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即时训练
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1. What I want to say is __w__h_o_m___ we will support. 2. The first thing we must make clear is __w__h_o_s_e_ car was