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In 1924 America's National Research Coun

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问题 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 stop-floor lighting 1 workers'productivity.Instead,the studies ended 2 giving their name to the"Hawthorne effect",the extremely influential idea that the very 3 to being experimented upon changed subjects'behavior.The idea arose because of the 4 behavior of the women in the Hawthorne plant.According to 5 of the experiments,their hourly output rose when lighting was increased,but also when it was dimmed.It did not 6 what was done in the experiment;7 something was changed,productivity rose.A（n）8 that they were being experimented upon seemed to be 9 to alter workers'behavior 10 itself.After several decades,the same data were 11 to econometric the analysis.Hawthorne experiments has another surprise store 12the descriptions on record,no systematic 13 was found that levels of productivity were related to changes in lighting.It turns out that peculiar way of conducting the experiments may be have let to 14 interpretation of what happed.15,lighting was always changed on a Sunday.When work started again on Monday,output 16 rose compared with the previous Saturday and 17 to rise for the next couple of days.18,a comparison with data for weeks when there was no experimentation showed that output always went up on Monday,workers 19 to be diligent for the first few days of the week in any case,before 20 a plateau and then slackening off.This suggests that the alleged"Hawthorne effect"is hard to pin down.7选？A.as far asB.for fear thatC.in case thatD.so long as
选项 A.as far as
B.for fear that
C.in case that
D.so long as
答案 D
解析 联系前面的分析，本空所填句的意思是“在实验中做什么并不重要；只要有改变，劳动生产率就会提高”。so long as表示“只要”，常用于引导条件状语从句，表明主句发生的动作以从句谈论的情况为前提。此处句中的分号表明分号前后的句子在语法上是独立的；所填入的主语只要能正确表达something was changed和productivity rose之间的逻辑关系即可。其它三个短语都能引导状语从句。C项in case that中的that可以省略，该短语有两种用法：1）用作连词，表示条件，其意为“如果，万一”；2）用作连词表示目的，其意为“以防，免得”。B项其后所接的从句多为虚拟语气，如She puts a blanket over the baby for fear that he should catch cold.A项as far as意思比较多，如As far as I know,its advantages outweigh its disadvantages.就我所知，其优势胜过劣势。但是放在空中，语义都不通顺，故D为正确答案。
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