However,the number of students who enjoy reading popular science articles doubles that of those who prefer reading artic
问题描述：
However,the number of students who enjoy reading popular science articles doubles that of those who prefer reading articles about learning methods,
翻译一下并解释一下double做什么成分,
doubles that of those...什么成分?
答
然而喜欢读通俗科学文章的学生是那些喜欢读有关学习方法文章学生的两倍.
However,the number of students （ 主语）who enjoy reading popular science articles（定语从句） doubles（这里是动词,作主句的谓语） that of those （ 宾语） who prefer reading articles about learning methods,（定语从句）为什么要用介词of 呢？of those 指代什么？可不可以改成doubles who prefer..呢?这里的that指上文出现的thenumber,, those 指代的是 the studentswho prefer reading articles about learning methods, 比较的结构要对称，还是要用that of those 或 that of the students who ...