题目内容
6.Life expectancy is rising in much of the world.But doctors are seeing another trend that isdisturbing.Some people are choosing lifestylesthat contribute to early death.A new U.S.studylooks at four lifestyle choices that prevent people from staying healthy and living longer.It used to be rare for people to live to 100.Butbabies born in the U.S.today can hope to live thatlong.In the 20th century,life expectancy in wealthy nations increased by as much as 30 years.Average life expectancy for Americans is 78.But doctors are seeing people adopt bad habits that can cut their lives short…like eating toomuch or eating too much junk food,exercising too little and smoking cigarettes.These habits increase the risk for cancer,diabetes,heart disease and stroke.
Researchers at Harvard University and the University of Washington wanted to find out howmany years are lost with these lifestyle choices."What we found was that high blood pressure,smoking,overweightaccount for five years ofloss of life expectancy in men and about four years in womenat the national level,"Goodarz Danaei,one of the principal researchers said.The researchers broke down the data into race,income and locale and they found even greaterdifferences.Middle-income whites have the best blood pressure.But Asian-Americans have fewest badhabits and the best health."They are not getting heart disease because of low blood pressure,they are not getting cancer because they have low risk factors for cancer,including smoking,"Danaei said.
The researchers say public health officials could use the study to plan programs that will help people make better lifestyle choices.
32.Some people's early death is the result of theirC.
A.life expectancy
B.genes
C.lifestyles
D.hobbies
33.Babies born nowadays in the US can be expected toA.
A.live to 100
B.live less than 100
C.live 30years longer
D.live to 78
34.High blood pressure,smoking and overweight can lead toB.
A.four years of loss of life expectancy in men and five years in women
B.five years of loss of life expectancy in men while about four years in women
C.five years of loss of life expectancy in both men and in women
D.nine years of loss of life expectancy in both men and in women
35.Compared with Asian-Americans,middle-income whites haveC.
A.fewer bad habits
B.better health
C.better blood pressure
D.lower risk of cancer.
分析 本文开头提出了世界寿命的趋势,引出一些人早期死亡的原因,通过分析这些原因,让人们选择健康的生活方式,可以延长寿命.
解答 32.C.细节理解题.根据第一自然段"Some people are choosing lifestylesthat contribute to early death."可知,一些人的早期死亡原因是因为生活方式.故选C.
33.A.细节理解题.根据第二自然段"It used to be rare for people to live to 100.But babies born in the U.S.today can hope to live that long."可知,美国出生的婴儿预期能活到100岁.故选A.
34.B.细节理解题.根据第三自然段"What we found was that high blood pressure,smoking,overweight account for five years of loss of life expectancy in men and about four years in women at the national level,"可知,高血压,吸烟等会使男士寿命损失五年,而女士是四年.故选B.
35.C.细节理解题.根据第三自然段"Middle-income whites have the best blood pressure."可知,白人的血压水平比较好.故选C.
点评 本文是健康环保类阅读,考查学生的细节理解和推理判断能力.做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确选择.在做推理判断题时不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
A. | couldn't | B. | mustn't | C. | wouldn't | D. | shall not |
A. | celebrated | B. | expressed | C. | congratulated | D. | observed |