题型：语法填空（语篇） 题类：常考题 难易度：困难
外研版（2019）高中英语必修第三册Unit 6单元练习（1）
One of the biggest challenges (face) students today is how to concentrate on studies. Almost all of them are struggling for their concentration power. In an age mobile phones and Internet are eating up most of our time and energy, one can understand how different it is to focus attention and energy on studies.
One of the most important (factor) for developing concentration on a task, whether it is study or anything else, (be) to develop an interest in that task. We are able to focus (easy) and more long periods of time on tasks that we find more interesting. If you ever want to concentrate on anything and studies are no (except), you need (ensure) that the environmental around you is distraction (注意力分散) free. So the question is not how to concentrate on studies how to avoid distractions that have swallowed up mankind today. The only way to guarantee distraction free environment is by getting rid of all the unnecessary things around you, (include) the electronic gadgets (小器具) like mobile phones.
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