假设你是某健康杂志的医学顾问Dr White，一名叫李明的中学生来信说，他所在班级近视的学生超过总数的一半，而且大多数学生的视力越来越差，她感到非常担心。请你针对她所说的情况，结合下面要点，用英语给李华回信，告诉她应该如何保护视力。

坚持做眼保健操

定期做视力检查

卧床或乘车时不要看书

不要用手揉眼睛

如无必要，不要戴有色眼镜。

注意：

1．词数：100左右；

2．适当增加细节使行文连贯；

3．开头已给出，不计入总词数。

Dear Li Ming,

You’re very kind to care about your classmates.                                     

____________________________________________________________________________________________

Yours,

Dr. White

It is difficult for doctors to help a person with a damaged brain. Without enough blood, the brain lives for only three to five minutes. More often the doctors can’t fix the damage. Sometimes they are afraid to try something to help because it is dangerous to work on the brain. The doctors might make the person worse if he operates on the brain.
Dr. Robert White, a famous professor and doctor, thinks he knows a way to help. He thinks doctors should make the brain very cold. If it is very cold, the brain can live without blood for 30 minutes. This gives the doctor a longer time to do something for the brain.
Dr. White tried his idea on 13 monkeys. First he taught them to do different jobs, then he op­erated on them. He made the monkeys’ blood go through a machine. The machine cooled the blood. Then the machine sent the blood back to the monkeys’ brains. When the brain’s tempera­ture was 10°C, Dr. White stopped the blood to the brain. After 30 minutes he turned the blood back on. He warmed the blood again. After their operations the monkeys were like they had been before. They were healthy and busy. Each one could still do the jobs the doctor had taught them.
【小题1】The biggest difficulty in operating on the damaged brain is that _______.

It’s difficult for doctors to help a person with a hurt brain.  36  enough blood, the brain can live only three to five minutes. Usually doctors can’t fix the hurt  37  such a short time.
Dr Robert White thinks he knows a  38  of help. He thinks doctors should make the hurt brain  39  to live for 30 minutes without blood. This gives the doctor  40  time to do something for the brain. Dr White experimented his  41  on fifteen monkeys.  42  he taught them to do different jobs. Then he operated on them. He made the monkeys’ blood go  43  a machine. When the brains’  44  was 10℃, he stopped the blood to the brain. After 30 minutes, he turned the blood back on. He  45  the blood again. After their operations, the monkeys were almost  46  before. They were healthy and busy. Each one could still do the job the doctor  47  them.
Dr White’s idea works well on monkeys. He thinks it will work on  48 . He think it will help with heart problems. A person  49  die when his heart stops; doctors can  50  it again. The problem comes: when the brain is without blood for about 5 minutes, it  51 . If doctors start the heart again after 5 minutes, the person has  52  body but a dead brain. Maybe in the future, doctors will  53  Dr White’s idea. When the person’s heart stops the doctor will  54  cool the brain. They will have 30 minutes to start the heart again. Maybe there will be no  55  the brain.

假设你是某健康杂志的医学顾问Dr White，一名叫李明的中学生来信说，他所在班级近视的学生超过总数的一半，而且大多数学生的视力越来越差，她感到非常担心。请你针对她所说的情况，结合下面要点，用英语给李华回信，告诉她应该如何保护视力。
坚持做眼保健操
定期做视力检查
卧床或乘车时不要看书
不要用手揉眼睛
如无必要，不要戴有色眼镜。
注意：
1．词数：100左右；
2．适当增加细节使行文连贯；
3．开头已给出，不计入总词数。
Dear Li Ming,
You’re very kind to care about your classmates.                                     
____________________________________________________________________________________________
Yours,
Dr. White

It was _________that Miss Wang had been to California and there she met Dr. White __________, who became her husband later.