假如你是李華，你的澳大利亞筆友David在郵 件中透露，他覺得他的朋友吸煙很酷，也想嘗試一下，為此征求你的意見。請你根據(jù)以下提示，給David回一封郵件，勸他不要吸煙。要點如下：
1.吸煙危害大，會影響自身及他人的健康；
2.一旦上癮，很難戒除；
3.提倡健康、積極的生活方式。
注意：
1.詞數(shù)80左右；
2.可以適當(dāng)增加細(xì)節(jié)，以使行文連貫；
3.開頭和結(jié)尾已給出，不計入總詞數(shù)。
Dear David，
    I have learned from your email that you want to try smoking as you think it is very cool.

As far as I can see，smoking is a bad habit.
    It is widely believed that smoking has harmful effects on one's body.It can do terrible damage to your heart，and even cause cancer.Additionally，cigarette smoking will affect the health of your family members.What's worse，you will find it hard to give up once you are addicted to cigarette smoking.
    I suggest you live a healthy and active life.You'd better often take part in sports to build you up and develop some healthy hobbies to enjoy life.

As far as I can see，smoking is a bad habit.
    It is widely believed that smoking has harmful effects on one's body.It can do terrible damage to your heart，and even cause cancer.Additionally，cigarette smoking will affect the health of your family members.What's worse，you will find it hard to give up once you are addicted to cigarette smoking.
    I suggest you live a healthy and active life.You'd better often take part in sports to build you up and develop some healthy hobbies to enjoy life.

Yours sincerely，
Li Hua