沪江网校版：2010年考研英语完形填空答案

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In 1924 America's National Research Council sent two engineers to supervise a series of industrial experiments at a large telephone-parts factory called the Hawthorne Plant near Chicago. It hoped they would learn how shop-floor lighting [1]affected (选A) workers’ productivity. Instead, the studies ended [2]up (选B) giving their name to the “Hawthorne effect”, the extremely influential idea that the very [3]act (选C) of being experimented upon changes subjects’ behaviour.
The idea arose because of the [4]perplexing (选B) behaviour of the women in the Hawthorne plant. According to [5] accounts (选C) of the experiments, their hourly output rose when lighting was increased, but also when it was dimmed. It did not [6]matter (选B) what was done in experiment; [7]so long as (选D) something was changed, productivity rose. An [8]awareness (选A) that they were being experimented upon seemed to be [9]enough (选C) to alter workers’ behaviour [10]by (选D) itself.
After several decades, the same data were [11]subjected (选C) to econometric analysis. The Hawthorne experiments had another surprise store [12]contrary to (选A) the descriptions on record, no systematic [13]evidence (选A) was found that levels of productivity were related to changes in lighting.
It turns out that peculiar way of conducting the experiments may have led to [14] misleading (选D) interpretations of what happened. [15]For example (选B), lighting was always changed on a Sunday, when work started again on Monday, output [16] duly (选A) rose compared with the previous Saturday, and [17] continued (选D) to rise for the next couple of days. [18]But（注：本题原文But后面没有逗号，海文版真题空格后面有逗号，如果选项里没有But，则此处可填however） a comparison with data for weeks when there was no experimentation showed that output always went up on Mondays. Workers [19]tended to be diligent for the first few days of the working week in any case, before [20] hitting (选D) a plateau and then slackening off.
本段完形填空改编自《经济学人》2009年6月一篇文章，标题为Questioning the Hawthorne effect，这也再次提醒参加考研英语考试的同学们，平时对外刊的阅读还是很重要的。 本题真题是参考了万学海文版真题，18，19题选项缺失，所以依照原文给出了答案，如果选项没有给出的词，那么就找意思最接近的词即可。
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