烟瘾过重 增加患肾癌的风险

短语讲解：

1. If you smoke more than a pack or two of cigarettes a day, you are classified as a heavy smoker. 

be classified as 被列为…，被归为…
例句：Of the Indonesian Chinese， only 5% can be classified as wealthy.
在印尼华人中，仅有5%能被归入富人阶级。

2. But each year, according to the WHO, at least seven million people, or one in every 10 adults around the globe, dies of a smoking related disease.

die of死于(疾病、过度悲伤等)
例句：People are dying of cancer more and more often.
死于癌症的人越来越多了。

3. Adding to that bad news, the health organization predicts that almost half of those who currently smoke will die from a disease associated with tobacco.

add to增加, 加强
例句：This lesson adds to the value of the book.
这一课增加了这本书的价值。
die from死于…
例句：The is chance is that one smoker in four will die from smoking.
每4个烟民中就有一人可能因吸烟而死去。

4. "Unless a patient has some sort of pain or perhaps blood in the urine, it may not come to their attention," Dr. Polascik stated.

come to one's attention 引起…的主意
例句：Mrs. Green, it has come to my attention that your account is horribly past due. 
格林太太，我注意到您的帐款已滞缴严重。

5. Dr. Polascik says the kidney cancer patients were divided into three groups, current and former smokers and those who never smoked.

divide into分成; 分为
例句：The river divides into two streams at this point.
这条河在此分成两条支流。

6. Their risk of advanced kidney cancer was based on two factors, how much they smoked every day and over how long a period of time.

a period of time 一段时间
例句：We lived in Beijing for a period of time.
我们曾在北京住过一段时间。

7. Whereas, if you smoked between 10 and 20 years, that risk goes up to 45 percent," Dr. Polascik explained.

go up上升, 上涨, 提高, 增加, 增高
例句：The goods have gone up in price.
这些商品的价格已经上涨。

8. "Of course, if you smoke over 30 to 40 pack years, your risk increases to 80 percent compared to non-smokers."

compare to与…相比
例句：Cultural life in the country cannot compare to that of a large city. 
农村的文化生活不能与大城市的相比拟

9. "After a number of decades, maybe 20 or 30 years of non-smoking or having to quit smoking, one’s odds will be almost the same as a non-smoker, but not quite," he said.

the same as 与…一样
例句：Twins look the same as each other
双胞胎看上去长得一样。