Many of creatures in the movie Avater are not real,but much of _____happens is still attractive ...

题目

Many of creatures in the movie Avater are not real,but much of _____happens is still attractive ...
Many of creatures in the movie Avater are not real,but much of _____happens is still attractive .为什么用what 不用them .but 不是连词么.

答案

因为这个句子想表达的意思是说,那电影里面的很多人物,角色都不是真实的,但是里面发生的大部分事情（里面的大部分情节）还是一样的引人入胜.
sth.happens
much of what happens 所发生的大部分事情
这里已经不是在说前面的人物角色了,而是转到说情节,说故事里面的事情,主语不一样了,所以不能用them了,因为them是指前面的creatures