There is a military aid, which is different, who carried what's calledthe 'football', which is a leather section that contains the highest classifiedcommunication equipment.
請問老師:
第一個which is different 它修飾句子的什么部分?
第二個which is a leather section 是指football嗎? 為何這里不是用that is a leather...?
which is different 為句子關系分句，即which的先行詞為前面的 There isa military aid 這個主句的內容。后面的who引導限制性定語從句修飾aid。aid在此指人，= an assistant or helper. 所以用who引導定語從句。因為句子關系分句插入aid和who之間，所以前后用逗號把句子關系分句分隔。假如拿掉這個which從句，則二個逗號同時消失。這個which句子關系分句還可以改為下面結構：
What is different is that there is a military aidwho...
如此就能了解看出is different的主語指的是什么了。
第二個which引導非限制性定語從句，修飾“football”。非限制性定語從句不可以用that引導，你應該了解的。