英语语法Basalt,whichcomposesmostoftheoceanfloor,isadark-greyrockrichinironandmagnesiumthanmostsurfacerocks.这句话答案说错误在rich这里,是说需要换成从句whichisrich这样么?还有为什么floor后面不加s,

Question

英语语法
Basalt,which composes most of the ocean floor,is a dark-grey rock rich in iron and magnesium than most surface rocks.
这句话答案说错误在rich这里,是说需要换成从句 which is rich 这样么?还有为什么floor后面不加s,most of不是指大多数,后面要加复数么?

Answer 1

不是换成从句,which is rich... 换了也没错,但是没解决根本问题.根本问题是rich -> richer. 因为后面在做比较,比较dark-grey rock和地表岩石的 Fe, Mg的含量.most of 后面不一定要复数： Oceans cover the most of t...