Risk of death is 3.5 t0 5 times greater for obese smokers than it is for people who have never smoked and are at a normal weight, according to a study published in the November, 2006 issue of the American Journal of Preventive Medicine.
The study, which began with a self-administered questionnaire taken between 1983 and 1989, asked more than 80,000 radiologic technologists aged 22 t0 92 questions about age, height, weight and smoking behavior.
BMI (body mass index) was calculated, with a BMI of 30 t0 34.9 being considered obese, and 35 and over being very obese. Smoking behavior was analyzed by looking at a person's tobacco consumption level, number of years smoked, and current smoking status. Researchers then followed participants through December of 2002, noting the number of deaths that occurred.
The study involved researchers from the National Cancer Institute, the University of Minnesota and the American Registry of Radiolegic Technologists.
Key Findings:
20 percent of obese adults in the United States smoke.
Obese smokers face a greater risk of death from cancer and circulatory disease.
Current smoking is a greater risk factor for death by cancer than obesity is, generally speaking.
The higher a person's pack-years (number of packs smoked per day times the number of years smoked) are, the greater the risk of death.
Men and women of all ages faced an elevated risk of death due to circulatory disease as BMI increased. And for those who were both obese and currently smoking, risk of circulatory disease increased 6 to 11 times under the age of 65, as compared to their never-smoking, normal weight counterparts.
While it's not surprising that obesity coupled with smoking is a recipe for trouble, it is important to highlight this growing health concern in America today.
Taking Charge of Your Health
Making healthy choices can be difficult when we're constantly bombarded with products that are hazardous to our health, but it's not impossible. With education and some motivation, we all have the ability to make lasting changes for the better. If you're an overweight smoker worried about gaining weight due to quitting, take heart. It's never too late to change your course and even reverse damage to some extent.
小題1:What is the probably the best title of the text?
A. Obese smoking and death             B. Key findings about smoking
C Taking charge of your health           D. Obesity and smoking
小題2:Which of the following is true according to the text?
A．Obese smokers are less likely to suffer from cancer
B．Obese smokers are more likely to suffer from cancer
C．Obese smokers .tend to gain fewer body mass index.
D．Obese smokers tend to get heavier than those Who never smoke
小題3:According to the  author, it is________to get rid of smoking.
A．easy and possibleB．difficult and impossible
C．easy ant worthwhileD．difficult but worthwhile
小題4: What is the American Journal of Preventive Medicine?
A. An medical institute.                  B A research center.
C. A medical magazine                   D. A TV station
小題5: What is the purpose of the text?
A．To inform the readers of the findings about obese smoking.
B．To warn the readers of the danger of obese smoking.
C．To tell us what obese smoking is.
D．To call on the obese smolkers to quit smoking.

小題1:A
小題2:B
小題3:D
小題4:C
小題5:D

試題分析：本文主要講述一個研究發(fā)現(xiàn)：比起不吸煙的人和正常體重的人來說，肥胖吸煙者死亡的風(fēng)險更大。
小題1:縱觀全文，結(jié)合文章第一段的主題句可知文章主要是講肥胖吸煙者死亡的風(fēng)險更大，故選A。
小題2:從文章第一段的主題句Risk of death is 3.5 t0 5 times greater for obese smokers than it is for people who have never smoked and are at a normal weight可知選B。本題也根據(jù)AB答案是一對互為矛盾的選項，其中必有一個是正確選項，從而縮小選擇范圍。
小題3:根據(jù)最后一段第一句Making healthy choices can be difficult when we're constantly bombarded with products that are hazardous to our health, but it's not impossible可確定正確答案為D.而B答案錯誤在impossible。
小題4:根據(jù)文章第一段第二行according to a study published in the November, 2006 issue of the American Journal of Preventive Medicine可以得知American Journal of Preventive Medicine是一本雜志。
小題5:從文章最后一段If you're an overweight smoker worried about gaining weight due to quitting, take heart. It's never too late to change your course and even reverse damage to some extent可知作者在號召那些肥胖吸煙者戒煙。
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C．By following time order.
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小題1:
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