there are many places of interest which attract millions tourists from all over the world every yea

问题描述:

there are many places of interest which attract millions tourists from all over the world every yea
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为什么用which?places不是复数吗

首先要明确,这个句子是一个定语从句,可以把句子成分分开来看,可能你会更明白一些:
There are many places of interest [which attract millions tourists( from all over the world.)]
句子的主干是:There are many places of interest.其中的用“[]”括到的部分是做的“places of interest” 的后置定语,用来修饰“places of interest”的,也就是说,places做的先行词,which做的引导词.句子意思是:“这里有很多每年吸引来自世界各地上百万游客的风景名胜.”就是这个意思.