2017高考英语必考知识点总结
英语是高考的重要考察科目，2017高考英语有哪些必考的知识点呢?接下来学习啦小编为你整理了2017高考英语必考知识点总结，一起来看看吧。
2017高考英语必考知识点：as引导的非限制性定语从句
在as引导的非限制性定语从句中，连接代词as在句子中可以作主语、宾语或表语等，可以指人或物。其在定语从句中的位置比较灵活，即可以在句子 前面，在句子中间或句子末尾。常用的结构有：as we all know; as is well known to…; as is often the case; as is said/mentioned above; as has been said before; as I told you before; as is evident; as often happens; as can be seen; as is/was expected; as we expect; as I can remember等。
[注意1]as通常只指整个句子的内容，不表示部分内容。
[注意2]as引导的非限制性定语从句通常指"事先可以预料到的""料想到的"，表达"好"的方面。
[注意3]as引导限制性定语从句时，常构成the same…as…; such…as…; so/as …as…等结构。在从句中既可以指人、物，也可以指整个句子。
[例句]
This is also part of your work, as I told you before. 我曾告诉过你，这也是你工作的一部分。
The man was a teacher, as was evident from his way of speaking. 从那人说话的样子可明显看出，他是个老师。
Such ideas as he hits on are worthless. 像他那样偶然想起的主意是无用的。
It's the same story as I heard from her yesterday. 这故事跟我从她那儿听到的相同。
He will marry as pretty a girl as he can find. 他要尽可能找漂亮的女孩结婚。
Such people as have made great contributions to the world should be greatly respected.那些对世界做出巨大贡献的人们应该受到极大的尊重。
2017高考英语必考知识点：which引导的非限制性定语从句
which引导的非限制性定语从句既可以指整个句子内容，也可以指句子的部分内容(如单词或词组等)，在句子中可以作主语、宾语(动词或介词 的)、定语等。注意它在句子中的位置：只能放在主句后，不能放在主句前。表达的内容是"不好的"、"事先没有预料到的"等时，常用which，只指物。
[例句]
Yellowstone National Park, which is in Wyoming, is one of the most beautiful national parks in the world. 黄石国家公园位于怀俄明州，是世界上最美丽的国家公园之一。
The clock, which my grandfather bought, is still in good order. 这时钟是我祖父买的，现在还走时很准。
The picture, for which he paid an enormous amount of money, was a forgery.那幅画他花了一大笔钱购买，却是幅赝品。
She changed her mind again, which made us all angry. 她又改变了主意，这使我们大家都生气了。
I lived three years in Paris, during which time I learned French. 我在巴黎住了三年，在那期间我学了法语。
The weather turned out to be very good, which was more than we could expect. 天气结果转晴，是我们没有预料到的。
2017高考英语必考知识点：as, though, although引导的让步状语从句。
[注意]although位于句首;though位于句首或句中;as位于句中=though。它的词序是把句中强调的形容词、副词、动词或名词放在连词前。[参考倒装结构] 请注意下列句式的变化：
[例句]
Although/Though I'm young, I already know what career I want to follow.
→Young as/though I am, I already know what career I want to follow.我虽然年轻，但我已经明白我应该追随什么样的事业。
Strange as it may seem, nobody was injured in the accident. 这次意外虽然显得不可思议，却没有人受伤。
Much as I would like to help, I have a lot to do. 虽然我很想帮助你，但是我有很多事要做。
Object as you may, I will go. 纵使你反对，我也要去。
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