白勇語法全解p74-34題

這一題是白勇語法全解p74-34

34. A recent national study of the public schools shows that there are now one microcomputer for every thirty-two pupils, four times as many than there were four years ago.

C. every thirty-two pupils now have one microcomputer, four times as many than there were

正確答案是C, 我也選對, 但是我的問題是  位什麼紅字部分不是there is 而是複數there are,  知道的人  可以幫我解答一下嗎???

謝謝

原题C选项不是楼主给出的；C选项为：there is now one microcomputer for every 32 pupils, four times as many as there were.我突然也不解了为什么是there were，望指教

A recent national study of the public schools shows that there is now one microcomputer for every 32 pupils, four times as many as there were four years ago

这里的there were指的是32 pupils吧

there are 定不是指的 32 pupils,原因有２：

１、there are　比较的是　microcomputer　的数量。还原此比较句得：

 There is now one microcomputer for every 32 pupils.

 There is ..microcomputer(s) for every 32 pupils four years ago.

２、如学生数量（32）是四年前的四倍，说明人均占有计算机数量在降低，这似与题目原义相悖。