In the mid-1920s the Hawthorne Works of the Western electri company was the scene of an intensive of experiment that would investigate changes in working conditions as to their effects on workers' performance.
错的一个: that investigated changes in working condition's effects on workers' performance 正确答案: investigating the effects that changes in working conditions would have on workers' performance.
Soaring TV costs accounted for more than half the spending in the presidential campain in 1992, a greater proportion than it was in any previous year. 对的答案是: a greater proportion than
我的问题是: 怎么知道比较的对象到底是谁,就是than前面有这么多东西,怎么一眼就能确定比较的对象到底是谁,我选的是A, 也就是现在句子划线的部分,为什么不可以接it was呢? it就指代proportion啊, a greater proportion than proportion was in any previous year, 这样不可以么? 怎么确定助动词,或者是系动词要不要加呢?
第二个 it的指代不对 1 it是指前面的事物本身,也就是说俩个proportion一致了 2改比较是介宾短语的比较 3俺没有看过这样的 was前面也没有be动词对应 than 的后面的主谓应该是They did (Soaring TV costs accounted for ),应为主谓一致就可以省略