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初中英语语法总结〔从句〕
从句分为定语从句，状语从句和名词从句三大类。定语从句又分为限定性和非限定性从句两种，由关系代词或关系副词引导，修饰主句的某个成分。状语从句分为时间、结果、让步、关系代词。例如: telephone，as we know，was the invention of Alexander Graham Bell． D．Roosevelt，who died there on April 12，1945． in a damp〔潮湿的〕 house for a long time is harmful to one’s health，which is known to everyone．
限定性定语从句中that可代表人和事，而which只代表事；二者在从句中作主语或宾语。that作宾语时常可省略，which如此不能，而且其后的“不与物动词+介词’’中的介词不能省略。which作宾语时，先行词与which之间的介词不能省。例如： first doll that could say“mama〞was invented in 1830． second half of his voyage was by far the more dangerous part，during which he sailed round the Cape Horn合恩角．
代表all，anything，something，nothing，much等词时，用that而不用which，that作宾语可省略。例如： care anything that has something to do with it． 'd better do something he prefers to do to please him． is the last time we met each other． came across the woman you told me about yesterday．
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who和whom引导的从句用来修饰人，分别作从句的主语和宾语。where是关系副词，用于表示地点的定语从句，而when用来表示时间。whose是关系代词，修饰名词作定语。例如: Ford is the person who is most responsible for developing the idea of mass production． knee is the joint where the thigh bone meets the large bone of the lower leg． next morning， when she came down to breakfast ， Mary was beaming with the pleasure of a new，great discovery． visiting professor is a famous scientist whose son stu