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托福阅读中form which定语从句如何理解

达学教育 2020-06-04 16:51:59 71 托福 托福阅读

今天我们来讲一下托福阅读中form which定语从句该如何理解。


我们来看例句:

88. Now, scientists have data from satellites and ground—based observations from which we know that the auroral brilliance is an immense electrical discharge similar to that occurring in a neon sign.

(介词提前的定语从句:from which,which指前面的data)

如今,科学家们根据来自卫星和陆基观察的数据得知,极光是发光原理类似于霓虹灯的巨大的电流释放。


解析:

主句: scientists have data from satellites and ground—based observations

从句1: from which we know 

从句2: the auroral brilliance is an immense electrical discharge 

从句3: similar to that occurring in a neon sign


第一个that引导的我们称之为叫定语从句,那第二个that引导的我们称之为叫宾语从句,所以这两个是不同的表达。