请问OG89

tinayc

从这道题的5个选项中，首先可以排除掉D,E; 根据并列的对称性，there is.... there are 同属 there be 结构，是对称的。又根据固定搭配as many as, ....than....是不可以混用的，因此A, B错. 只剩下选项C了，再来看这个选项，会注意到知识点 there be 的单复数问题。 抽出句子主干　there is....one microcomputer...., four times as many as there were four years ago.　会发现 there is  对应　one microcomputer　是正确的．比较的对应项是４年以前的事，因此用过去时态．但是此选项there be 后面的部分省略了(for example: as many as there were four microcomputers for 130 students)，所以无从判断，可是以上信息足以判断出 C is ETS preferred relative correct answer.

davidcopper

以下是引用tinayc在2004-10-6 1:18:00的发言：

从这道题的5个选项中，首先可以排除掉D,E; 根据并列的对称性，there is.... there are 同属 there be 结构，是对称的。又根据固定搭配as many as, ....than....是不可以混用的，因此A, B错. 只剩下选项C了，再来看这个选项，会注意到知识点 there be 的单复数问题。 抽出句子主干　there is....one microcomputer...., four times as many as there were four years ago.　会发现 there is  对应　one microcomputer　是正确的．比较的对应项是４年以前的事，因此用过去时态．但是此选项there be 后面的部分省略了(for example: as many as there were four microcomputers for 130 students)，所以无从判断，可是以上信息足以判断出 C is ETS preferred relative correct answer.

补充的省略部分看不懂,没有解决为什么用there were而不用there was的问题