问题详情：
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阅读下面的材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
World Sleep Day, organized by the World Sleep Day Committee of the World Association of Sleep Medicine since 2008, is 1 ( hold )on March 21 every year.
The aim of World Sleep Day is to celebrate the benefits of good and healthy sleep.
Sleep quality plays a key role in 2 (people) health. Researchers say that there 3(be) a lot of advantages if we always get enough sleep. We can be smarter, thinner, 4 (health) and more cheerful. Also we’re to have better skin, better 5 (memory ) and longer lives. When you lose even one hour of sleep 6 any reason, it will influence your performance 7 next day.
In general, adults are thought to need at least eight hours of sleep a night, but a recent survey found that, on workdays, only 21% of them really get a full eight hours of sleep, and 8 (other) 21% get less than six. For teenagers, a healthy amount is about eight to nine hours per night. 9, about 80% of high school students don’t get enough sleep because of their schoolwork or some bad habits.
27% of people throughout the world have sleep problems. Now there are over 80 kinds of sleep disorders, and most people know little about their 10 (dangerous) . So, for our good life and work, it’s necessary for us to realize the importance of sleep and try to have a good sleep.
【回答】
1. held 2. people’s 3. are 4. healthier 5. memories
6. for 7. the her 9. However 10. danger
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