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暴力的 ) or vulgar(粗俗的 ) online content(內容 ).If students show signs of being addicted to the Inter, they can get help from their teachers to give up their addiction. 12. (在 …… 之間 ) China39。s 772 million Inter users, about 151 million of 13. (他們 ) are between the ages of 10 and 19, according to the China Inter Network Information Center. avoid Among them To make better use of the Inter, experts advise that students should limit(限制 ) their 14. (屏幕 ) time to less than hours a day, People39。s Daily make better use of their free time, they can develop healthy 15. (業(yè)余愛好 ), like reading or playing sports. screen hobbies 二 、 語法填空 。 閱讀下面短文 , 在空白處填入一個適當的詞 , 或填入括號中所給單詞的正確形式 。 Lemons are a kind of fruit that you wouldn39。t normally sink(下沉 ) your teeth recently, many people have posted pictures and videos online of 16. (they) eating facial expressions look pretty funny while they39。re eating the sour fruit. themselves However, they are not just doing this for are taking part 17. an online charity(慈善 ) activity called the LemonFace Challenge, which aims to help people with a rare type of brain posting their “l(fā)emonface” pictures or videos, people then ask friends or relatives to do the same thing. The people they choose can either eat lemons 18. donate money for the charity activity, as well as invite more people 19. (continue) the challenge. in or to continue Charity challenges like this one have been