假定你是李華，校學生會主席。現在全國中小學生近視問題日益嚴峻，這一現象已經引起了國家的高度重視。為此，請你在全校升旗儀式上做演講，呼吁愛眼護眼。
內容包括：
（1）問題的嚴重性；
（2）改進和預防措施等。
要求：
（1）詞數80詞左右；
（2）文中不得透露考生的真實身份信息；
（3）可以適當增加細節，以使行文連貫；
（4）文章的開頭和結尾已經給出，不計入總詞數。
參考詞匯：近視nearsightedness

    Dear teachers and fellow students：                       
    That's all!Thanks for all your attention!

【考點】演講稿．

【答案】Dear teachers and fellow students：
It's my great honour to stand here and present a speech about the present situation of nearsightedness among our students.
Nowadays in China，huge numbers of students are near-sighted，including college students.What's more，the tendency is still on the rise.So，it is high time we took immediate and proper measures right now.
Here，I do appeal to you all to stick to the practice of eye exercises at least twice a day.Besides，don't read in an environment where it is too dim or too bright.As you know，too much screen time contributes a lot to poor eyesight，so you'd better stay away from digital devices as well.Finally，please remember to give your eyes a short rest between classes by looking far outside.Take good care of the window of your heart，and you're bound to enjoy a bright future.
That's all!Thanks for all your attention!