2. 外语
  3. A. unrelated B. results from C. takes D. fixed E. spends F. distracted G. completely H. productivity I. external J. with

A. unrelated B. results from C. takes D. fixed E. spends F. distracted G. completely H. productivity I. external J. with

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问题     A. unrelated B. results from C. takes D. fixed E. spends
    F. distracted G. completely H. productivity I. external J. with
    K creativity L. previously M. cost N. consistently O. get back
    Did you know that a task that’s interrupted【C1】______ 50% longer and has 50% more mistakes than an uninterrupted one? It takes a while for our brains to get into a focused state where we’re able to concentrate fully on a task without feeling【C2】______. Once we’re in that state, we can enjoy a very productive flow, as long as we don’t get interrupted.
    A focused mind is still sensitive to disruption from【C3】______input. Interruptions—i.e. switching to a different, largely【C4】______ set of thought patterns—erase and scramble much of your 【C5】______ loaded and nicely optimized brain state. And frequent interruptions can prevent you from ever fully entering that state of flow.
    When you interrupt someone, on average, it takes them 23 minutes to【C6】______ to the original task, plus up to 30 minutes to return to the flow state so they can be fully productive again. Almost half of the time you interrupt someone, you’ll actually knock them off task【C7】______, such that they won’t return to the original task right away when the interruption ends. You may think you’re only putting them on pause for a minute or two, but the actual break from the task that【C8】______ your interruption may be significantly longer. Frequent task switching has also been measured to significantly increase stress levels. So interrupting others not only hurts their【C9】______, but it may also damage their health. Interruptions are expensive too. One estimate puts the【C10】______ of workplace interruptions at $588 billion per year in lost productivity for the U.S. economy.
【C1】
选项
答案C
解析 由and后与空格并列的has，可判断空格处应填入动词的第三人称单数。空格后的50% longer表示的是时间，“花费时间做某事”常用动词take，而且下文也有takes复现，不难判断这里选C。spends应用“人”作主语，而此处主语为a task，故排除。
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