Madame Curie

Madame Curie,标签：高三英语教案模板,http://www.89xue.com
　　As we all know，he never smokes. The foolish boy made the mistake again，as could be expected. ____ is mentioned above，the number of students in senior high school is increasing．('99上海，4)
　　A.Which B.As C.That D.It
　　关系代词as和which引导的非限制性定语从句区别究竟在哪里呢?
　　1．非限制性定语从句位于句末，而且as或which在从句中作主语、宾语或表语时可互换。如:
　　He is a farmer as/which is clear from his manners．(在从句中作主语)
　　This elephant is like a snake，as／which anybody can see．(在从句中作宾语)
　　2. which引导的非限制性定语从句一般放在句末，而as引导的非限制性定语从句可放在句末，也可放在句中、句首。置于句首时，不能用which替换。如：
　　Crusoe lost his dog, which made him very sad.
　　Taiwan is part of China, as/which is known to all.
　　As we have see

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www.89xue.com n, oceans cover more than 70 percent of the earth.
　　3.as引导非限制性定语从句时，意为"这一点"、"这件事"，常与see，hope，expect，know，guess等动词搭配；而which引导非限制性定语从句时，与主句有一种因果关系，可译为"所以……"。如：
　　Cyprus, as you all know, is in the Mediterranean．大家都知道，塞浦路斯在地中海。
　　Bamboo is hollow，which makes it very light。竹子是空的，所以很轻。
　　4.as引导非限制性定语从句，并在从句中作主语时，其后面的谓语动词必须是连系动词。如果从句谓语动词是行为动词，则必须用which。如：
　　He married her，as was natural.
　　She refused to take the medicine，which made her mother angry．
　　It rained hard yesterday，which prevented her from going to Shenyang.
　　但若从句谓语是usually, happen，be often the case等时，仍用关系代词as，不用which。如：
　　He is absent，as is often the case.
几组正误辨析：
1．误：We visited a factory where makes toys for children．
　　正：We visited a factory which that makes toys for children.
　　析：此句错误的原因是把先行词a factory当作从句中的状 语，实际上先行词a 　　　factory在从句中充当动词makes的主语。故关系词应使用which或that。
2．误：After living in Paris for 50years，he returned to the small town that 　　he grew up as a child。
　　正：After living in Paris for 50years, he returned to the small town 　　where he grew up as a child。
　　析：此句错误的原因是把先行词the small town当作从句中的宾语，实际上从句中缺少地点状语。因为从句中谓语动词grew up是一个不及物动词短语，其后的as a child已充当了宾语，故从句中缺少状语，应使用关系副词where。
3．误：He paid the boy $15 for washing ten windows，most of them hadn't been cleaned for at least a year．
　　正：He paid the boy $15 for washing ten windows, most of which hadn't been cleaned for at least a year．
　　误：This is the boy with him he worked．
　　正：This is the boy(that／whom) he worked with。
　　正：This is the boy with whom he worked．
　　析：在定语从句中，如果介词及介词短语用在从句前，其后必须用关系代词which(指物)、whom(指人)。上面两误句中先行词windows(物)，the boy(人)应分别使用most of which和with whom。如果介词及介词短语用在从句句尾，应按普通定语从句对待。

教学设计Unit 1 Lesson 1

Unit 1 Lesson 1

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