假設你是某健康雜志的醫(yī)學顧問Dr Helper，一名叫李華的中學生來信說，她所在班級近視的學生超過一半，而且大多數(shù)學生的視力越來越差，她感到非常擔心。請你針對她所說的情況，結(jié)合下面的要點，用英語給李華回信，告訴她應該如何保護視力（eyesight）。
（1）下課時注意讓眼睛休息，并堅持每天做眼保健操（do eye exercises）。
（2）陽光下或臥床時不要看書，不要用手揉眼睛（rub）。
（3）定期做視力檢查（regularly）。
（4）希望建議能幫到她和她的同學。
注意：
（1）詞數(shù)100左右。
（2）首句已給出，可以適當增加細節(jié)，以使行文連貫。
Dear Li Hua，
    You're very kind to care about your classmates.Now，__________

【考點】書信類．

【答案】Dear Li Hua，
You' re very kind to care about your classmates.Now I will give you some advice on how to protect your eyesight.
If you want to protect your eyesight，I advise you to let your eyes rest after a certain amount of time of work.
You should do eye exercises every day，at least twice a day.
You should go to the hospital to have an eyesight examination regularly，at least once a year.You mustn't read while lying in bed，in too bright or dark light or in a moving vehicle.You'd better not rub your eyes with your hjye.ais.And it is bad for your eyesight if you wear coloured glasses when it is not necessary.
I hope my advice can help you and your classmates.
Yours，
Dr.Helper