最近某眼科醫院對你校學生進行了視力調查，70%以上的同學都或多或少存在視力問題。假如你是李華，校學生會主席，為了引起同學們的重視，請你代表學生會以"Saving Eyesight"為主題寫一封英文倡議書。要點如下：
1.倡議書的原因和目的。
2.倡議書的具體內容。
3.發出倡議。
注意：
1.詞數80字左右；
2.可適當添加細節，以使行文連貫。
Dear schoolmates，
______

【考點】提綱作文．

【答案】Dear schoolmates，
  Recently，an eye survey on the students in our school conducted by an eye hospital shows that more than 70% of the students have vision problems more or less.On behalf of the Student Union，I call on every student to take measures to save our eyesight.
  First of all，we should reduce the time spent watching mobile phones and computers，which is the main cause of our poor eyesight.In addition，we can take regular breaks from our study and go outside to give our eyes a chance to be exposed to sunlight.Eventually，we should also keep it in mind that proper lighting is a must so that our eyes don't need to work hard.
   I strongly advocate that we should take action at no time to save our eyesight.