66. In the mid-1920’s the Hawthorne Works of the Western Electric Company was the scene of an intensive series of experiments that would investigate changes in working conditions as to their effects on workers’ performance. (A) that would investigate changes in working conditions as to their effects on workers’ performance (B) investigating the effects that changes in working conditions would have on workers’ performance (C) for investigating what are the effects in workers’ performance that changes in working conditions would cause (D) that investigated changes in working conditions’ effects on workers’ performance (E) to investigate what the effects changes in working conditions would have on workers’ performance 答案:B, 这道题答案中的on究竟是跟effects对应还是changes, 做了两次都选错了. 请大家指教!
it sucked, i didn't get the right answer, but now i understand: 1, 'on' here is connected to 'changes', meaning how changes in work condition will affect the workers' performance 2, u will not consider ACD 3, E is OK but redundant, what clause= noun. i was trapped there
Read the question again, I make clear that why investigating is better than to investigate. Because the whole sentence is "... works... was ...... of experiments", after that we should choose a choice to modify the experiments, not to describe the purpose of the whole sentence. So here "investigating" is better than "to investigate". Right?