現(xiàn)在的中學(xué)生課業(yè)負擔繁重，在校外普遍缺乏運動，甚至不做運動，有的在業(yè)余時間上網(wǎng)看電視，用手機瀏覽網(wǎng)頁或聊天，這樣不但浪費時間，還嚴重損害健康和視力。請你根據(jù)以下提示和要求寫一篇短文，談?wù)勀愕目捶ā?br />提示：
（1）Why are students short of exercise？
（2）What is the influence（影響）on students？
（3）What is your advice？
要求：
（1）短文必須包括所有提示內(nèi)容，可適當發(fā)揮；
（2）短文中不得出現(xiàn)真實的人名、校名和地名；
（3）詞數(shù)80左右（開頭已經(jīng)給出，不計入總詞數(shù)）。
參考詞匯：缺少be short of；傷害，損害do harm to；遠離stay away from；
瀏覽網(wǎng)頁surf the Internet視力eyesight電子產(chǎn)品electronic products
   Many students are short of exercise or even don't exercise in their free time now._________________________________________________________________________________________________________________

【考點】說明文；安全與健康．

【答案】    Many students are short of exercise or even don't exercise in their free time now.Some students study hard and they have too much homework to do.Other students spend most of their free time ，playing computer games，surfing the Internet，watching TV or talking with their friends online.It not only wastes time but also does harm to their health and eyesight.
    In my opinion，it's important for students to take more exercise in their spare time.Besides，stay away from TV，computer，iPad and other electronic products.Don't read books or use a mobile phone in bed.Finally，make sure to have a good eating habit.
    All in all，students need to do more exercise in their spare time.Make sure to have a healthy lifestyle.The more exercise they do，the healthier they will be.