关系代词 which 一般指物，在定语从句中作主语、宾语或定语，既可引导限制性定语从句，又可引导非限制性定语从句。下面小编就来跟大家分享which引导从句的小结。

　　which的句子：

　　1. 引导限制性定语从句

　　A shop should keep a stock of those goods which sell best. [ stock存货]

　　商店应存有最畅销的货物。

　　This is the family which is planning to move to the city

　　这是要搬进城里的一家。

　　2. 引导非限制性定语从句。

　　( 1 )用来指代一个句子。

　　Internet is so interesting, which makes all possible happen.

　　因特网是如此有趣，它使任何事都有可能发生。

　　( 2 )用来指代句子的一部分。

　　When deep in thought, which he often was, he would forget all around him.

　　他常常陷入沉思，这时他就会忘掉周围的一切。

　　( 3 )如果要引导两个非限制性定语从句，第二个 which 前要加 and.

　　He bought a book, which was written by LuXun, and which he decided to give to his friend.

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　　译文：保护客户资料的能力是市场价值的关键，董事会代表股东对市场价值负有责任。

　　【难点小结：1.介词短语 2.which 的先行词 3. 非限制性定语从句有时要翻译成一句话】

　　例2.

　　【1.semiconductor半导体 2. casualty伤亡，灭亡，覆灭 3.< A sit at the heart of B> A是B的核心】

　　For a while it looked as though the making of semiconductors, which America had invented and which sat at the heart of the new computer age, was going to be the next casualty.

　　Which指代什么?

　　曾有一段时间，似乎半导体制造业是下一个将要覆灭的产业。正是美国人发明了半导体，它在计算机新时代中起着核心的作用。

　　【难点小结：1.which 的先行词 2.定语从句要单独翻译成句子】