英语名词性从句100题（英语如何简单掌握）
概念
- 名词性从句=名词词组，作主、宾、表、同位语
- 名词性从句5类：主、宾、表、同位语从句
- 引导词：
- 1、从属连词that, whether
- ①that句首只引导，不能省略
- 例：That he will come is certain.他一定会来。
- ②whether放句首/中，表达“是否”
- 例：Whether he will come is not my business.他是否来不关我的事。
- ③that和whether，引导完整从句
- 例：(That man can aspire to and achieve goodness) is evident throughout history.那个人能够渴望并实现善良，这在历史上是显而易见的。
- 2、连接代词who, what, which, whoever
- 作句子主宾表
- 例：(Which side will win) is not clear.哪一方会赢不清楚。
- 3、连接副词when, where, how, why
- 作句子状语
- 例：(Why he did) it remains a mystery.他做的原因依然是一个秘密。
- 做题技巧：
- ①看句子是否完整；②依成分选连接词
- 例：(What makes the book so extraordinary) is the creative imagination of the writer.这本书的非凡之处是作者富有创造性的想象力。
- 1、主从→it形式主语：
- 主从在句首，不省连接词；变it is…，that可省略
- 例：(That they like each other) is natural.=It is natural (that) they like each other.(他们彼此喜欢)是自然的。= 他们彼此喜欢是很自然的。
- 2、it形式主语的写法：
- it作主语，某某is重要，从句(should) do
- 句型It is important/necessary/suggested/advised that…例：It is essential that we take enough food while climbing.爬山时带足够的食物是很重要的。
- 1、概念
- 从句作宾语
- 2、引导词
- 从属连词：
- that，whether，if（句子完整，不做从句成分）
- 连接代词：
- what，which，who，whom，whose，whever（做从句主，宾，表语）
- 连接副词：
- when，where，how，why（做从句状语）
- 3、whether和if【同】【异】
- 【同】都表示“是否”
- 【异】
- ①whether or not
- 例：Whether ways will be found to stop pollution or not is just __confuses the public.
- ②介词＋whether
- ③whether to do
- ④if只引导宾从
- 4、否定要转移
- 标志词
- I＋否定转移词：think, believe, suppose, expect, imagine, fancy, consider, guess
- 例：I don't think I know you.我觉得我不了解你。
- 否定转移→反义疑问句：
- ①否定→宾从；②去主句；③后反问
- 例：I don't think you've met Xiao Xin.→反义疑问句→You haven't met Xiao Xin, have you?①否定→宾从：I think you haven't met Xiao Xin.②去主句：You haven't met Xiao Xin .③加后面：have you ?
- 5、省略that【①省②不省】
- 宾从 ≥2，省第一that
- 例：I believe (that) you've done your best and that things will happen.我相信你已经尽力了，事情会发生的。
- 介词＋宾从，that不可省
- 例：He always thinks of that he will come back tomorrow.他总是认为他明天会回来。
- it作宾从，that不可省
- 例：We consider it necessary that he should improve his English.
- 1、形式：
- 主语 系动词 表语从句
- 系统词：be, look, remain, become, turn, seem
- 2、固定搭配：
- The reason why…is (that…)的原因是
- 例：The news is that he will come here.消息是他要来这儿。
- That is (because…)那是因为
- 例：From space, the earth looks blue. This is becauseabout seventy-one percent of its surface is covered by water.从太空看，地球是蓝色的。这是因为它大约百分之七十一的表面被水覆盖。
- That is (why…)这就是为什么
- 例：That is why she failed to pass the exam.那就是她考试不及格的原因。
- It seems/looks (as if…)看起来好像……
- 【总结】
- 表从作表语，在系动词后，be感官变得
- 4固定搭配，原因看好像
- 1、作用：
- =先行词（抽象名词）
- 例：I heard the news (that our team had won).我听到消息(我们队赢了)。
- 2、抽象名词：
- news, idea, fact, promise, message, question, doubt, thought, hope, suggestion, word, possibility...
- 例：The notice came in the afternoon that the meeting would be postponed.
- 3、引导词：
- 除If, which外
- 【总结】
- 同从作解释，抽象先行词，引导词that，除if/which
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