which从句介绍 讲解从句

1、which前面有逗号，逗号前面是个名词，which就近指代那个名词。Tankfield emailed Pea some photos, which did not cheer Pea h就近指代photos，定语从句中谓语动词did not cheer (Pea up)的发出者即从句主语即先行词photos，是photos没让豌豆家属高兴起来。

2、Tankfield emailed Pea some photos, which Pea did not find h就近指代photos，photos是定语从句中的宾语，把定语从句还原成一个完整句就是Pea did not find the photos interesting。

3、可以看到，上面两个句子都可以以that为关系代词改写，即Tankfield emailed Pea some photos that did not cheer Pea up.)Tankfield emailed Pea some photos that Pea did not find interesting.改写与原版区别在哪儿，就在一个逗号。which前面是名词，名词和which之间没逗号的，在GMAT语法里算错。