这个句子的原句是一个定语从句,the spider web serves as a symbol of internet, which both connects people and isolates them from each other. 说的是网络既把人们连接起来,又把人们分开.先行词就是“网络”.当把which省略时,动词要换成相应的分词形式,如果是主动关系要用现在分词,被动关系用过去分词.当定语从句的连接词去掉用分词形式时,就是伴随状语,而不是补语.