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高中期末诊断-高一英语期末之主语从句！成功是由百分之九十九的努力和半分之一的天分。学习这条路上没有捷径可走，一定要持之以恒的勤奋学习！小编给大家整理了较不好的学习的从句，爱智康助力期末诊断，下面是高中期末诊断-高一英语期末之主语从句希望对同学们有帮助！
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高中期末诊断-高一英语期末之主语从句(一)
一、连接词的选用
1. 由what和that引导的主语从句what和that都可引导主语从句。what除起连接作用外，还在主语从句中充当某些成分(主语、宾语或表语)。而that在主语从句中不充当任何成分，只起连接词的作用。
例如：
What he wants is a new bicycle. 他想要的是一辆新自行车。
【分析】句中充当主语的是从句"What he wants"，其中what 在从句中作宾语。
That the earth moves around the sun is known to all. 众所周知，地球围绕太阳转。
【分析】句中充当主语的是从句"That the earth moves around the sun"，其中that只起连接作用，在从句中不充当任何成分。
2. 由whether引导的主语从句含有"是否"意思的主语从句，连接词不能用if，只能用whether。
例如：
Whether we will hold a party in the open air next week is uncertain. 我们下周是否在户外开晚会还不确定。
3. 由其他连接代词和连接副词引导的主语从句who, which, when, where, why, how等连接代词和连接副词既有疑问含义，又起连接作用，同时在从句中充当各种成分。
例如：
Who she is doesn’t concern me. 她是谁与我无关。
【分析】连接代词who在从句中充当表语。
Where I spend my summer holiday is no business of yours. 我在哪里过暑假不关你的事。
【分析】连接副词where在从句中充当状语。
How the prisoner escaped is a complete mystery. 囚犯如何逃脱完全是一个谜。
【分析】连接副词how在从句中充当状语。
Which car you will choose to buy makes no difference. 你决定买哪一辆车都不会有任何区别。
【分析】"Which car"在从句中充当动词buy的宾语。
4. whatever / whoever的用法
whatever / whoever可以引导主语从句，并在句中作主语、宾语、表语等,不含疑问意义。whatever相当于anything that; whoever 相当于anyone who。
例如：
Whoever wants to enter into this school must take the exam. 任何想进入这所学校的人都必须参加这个诊断。
【分析】"Whoever wants to enter into this school"相当于"Anyone who wants to enter into this school"。
Whatever she did was right. 她做的一切都是对的。
【分析】"Whatever she did"相当于"Anything that she did"。
高中期末诊断-高一英语期末之主语从句(二)
注意!让步状语从句中的whatever相当于no matter what; whoever 相当于no matter who。例如：Whoever wants to enter into this school, he must take the exam. 不论谁想进入这所学校,都必须参加诊断。(这是一个让步状语从句,相当于:No matter who wants to enter into this school, he must take the exam.)
二、形式主语it构成的主语从句
1. 由连词that引导的主语从句，在大多数情况下可以用形式主语it代替，即将it放在句首，而将主语从句放在句末，以避免句子头重脚轻。
例如：
It is a matter of common experience that bodies are lighter in water than they are in air. 物体在水中比在空气中轻，这是大家共有的经验。
【分析】形式主语it指代后面的主语从句"that bodies are lighter in water than they are in air"。需要注意的是，it作形式主语时，要注意和as引导的定语从句的区别。试比较:
① It was reported that no country was under the terrorist attack last year.
② As was reported, no country was under the terrorist attack last year.
句意：据报道，去年没有国家遭到恐怖分子的袭击。
【分析】上述两个句子句意相同,但结构不同。前一个句子包括一个主语从句"that no country was under the terrorist attack last year";后一个句子包括一个非限定性定语从句"As was reported",其中as指代整个主句内容。
2. 由连接代词、连接副词和连词whether引起的主语从句常可用先行词it作主语，而把主语从句放到后面去。
例如：
Who’s to head the delegation hasn’t been made public.
→ It hasn’t been made public who’s to head the delegation. 谁来领导这个代表团还没有宣布。
How many people we are to invite is still a question.
→ It is still a question how many people we are to invite. 我们要邀请多少人还是一个问题。
When we arrive doesn’t matter.
→ It doesn’t matter when we arrive. 我们什么时候到没有关系。
Whether it will do us harm or good remains to be seen.
→ It remains to be seen whether it will do us harm or good. 这对我们有害还是有利还得看一看。
3. 常见用it作形式主语的复合句结构
① It is a fact (a pity / no wonder / a good idea / a shame ...)that ...
例如：It’s a pity that you didn’t come to my birthday party. 你没有来参加我的生日派对真是太遗憾了。
② It is important(necessary / advisable / desirable / imperative / true / strange / possible ...)that ...
需要注意的是，这类主语从句中，谓语动词很多为"(should)+动词原形"，即要用虚拟语气。例如：
It is necessary that several nurses (should) stay. 几个护士留在这儿是很有必要的。
It is imperative that everyone (should) learn from practice. 每个人都应该从实践中学习。
③ It is reported (well-known / hoped / thought / expected / said / believed / decided / suggested / ordered ...)that ...
例如：It is said that many people was killed in the earthquake. 据说很多人在这次地震中丧生了。
④ It seems(appears / doesn’t matter / makes no difference / ...)that ...
例如：It makes no difference whether he will attend the meeting or not. 他是否会参加会议都无关紧要。
三、主语从句中的否定前移
当用it作形式主语，而将主语从句放在句尾时，主语从句中的否定词常要前移至主句中。例如：
It doesn’t seem that they are from the same university. 看来他们不是来自同一所大学。
It doesn’t appear that we’ll have a sunny day tomorrow. 看来我们明天不会碰上好天气。
高中期末诊断-高一英语期末之主语从句(三)
1.定义：用作主语的从句叫做主语从句。
2.构成：关联词+简单句
3.引导主语从句的关联词有三类：
(1) 从属连词that。 如：That they were in truth sisters was clear from the facial resemblance between them.
很明显，她们确是亲姐妹，她们的脸型很相似。
(2) 从属连词whether。如：
Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。
(3) 连接代词who, whom, whose, what, which, whoever, whatever, whichever
连接副词 where, when, how, why。如：
What she did is not yet known. 她干了什么尚不清楚。
How this happened is not clear to anyone. 这事怎样发生的，谁也不清楚。
Whoever comes is welcome. 不论谁来都欢迎。
Wherever you are is my home ---- my only home. 你所在的任何地方就是我的家----我先进的家。
解释：
1. 主语从句能用it作形式上的主语。常以it作形式主语的句型有：
A. It+be+形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.)+that从句。如：
It is certain that she will do well in her exam. 毫无疑问她诊断成绩会很好。
It is probable that he told her everything. 很可能他把一切都告诉她了。
B. It+be+名词词组(no wonder, an honour, a good thing, a pity, no surprise, etc.)+that从句。如：
It’s a pity that we can’t go. 很遗憾我们不能去。
It’s no surprise that our team should have won the game. 我们没赢这场比赛真意外。
C. It+be+过去分词(said, reported, thought, expected, decided, announced, arranged, etc.)+that从句。如：
It is said that Mr. Green has arrived in Beijing. 据说格林先生已经到了北京。
It is reported that China has sent another man-made earth satellite into orbit.
据报道中国又成功地发射了一颗人造地球卫星。
D. It+seem, happen等不及物动词及短语+that从句。如：
It seems that Alice is not coming to the party at all. Alice似乎不来参加晚会。
It happened that I was out that day. 碰巧我那天外出了。
E. It+doesn’t matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句。如：
It doesn’t matter whether she will come or not. 她是否来这无关紧要。
It makes no difference where we shall have the meeting. 我们在哪里开会毫无区别。
F. 当that引导的主语从句出现在疑问句中时，要以it作形式主语，而把主语从句后置。如：
Is it true that the scientist will give us a lecture next week? 下周那位科学家将给我们作报告是真的吗?
Does it matter much that they will not come tomorrow? 他们明天不来很要紧吗?
G. 当主语从句出现在感叹句中时，要以it作形式主语，而把主语从句后置。如：
How strange it is that the children are so quiet! 孩子们这么安静真奇怪!
2.注意连接代词whoever, whatever, whichever等引导主语从句的含义
Whoever comes will be welcome. (whoever=the person who) 来的人将受到欢迎。
Whatever he did was right. (whatever=the thing that) 他所做的事情是正确的。
Whichever of you comes in will receive a prize. (whichever=anyone of you who) 你们当中不论哪个进来将会得到奖
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