求助英语高手

in 1924 America's National Research Council sent two engineers to supervise a series of experiments at a telephone-parts factory called the Hawthorne Plant near Chicago.it hoped they would learn how shop-floor lighting affected workers'productivity.Instead,the studies ended up giving their name to the “Hawthorne effect”,the extremely influential idea that very act of being experimented upon changes subjects' behavior. 帮我翻译解决一下最后一句话里面的那个 upon 怎么讲。 谢谢

这里是be experimented upon sth（对......进行试验），upon=on（就）。一般短语整体识记比较好。

Instead, the studies ended up giving their name to the “Hawthorne effect”, the extremely influential idea (that the very act of being experimented upon) changes subjects’ behaviour.

括号中的内容是修饰the extremely influential idea changes subjects’ behaviour.的主语部分的。

upon prep. 1. 在...之上,在...上面 He laid a hand upon my shoulder. 他把一只手放在我肩上。 2. 在...后立即 3. 根据;依靠 We acted upon his instructions. 我们根据他的指示办事。 4. 接近 5. 对着,向 6. (走)上...,(爬)上... He climbed upon his horse. 他爬上马背。 7. 在做...之中 8. 关于 其意与 on相同，但语气较为正式，在口语中多用 on:

在于

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