Researchers have found more evidence that suggests a relationship between races (種族) and rates (率) of lung cancer among smokers. A new study shows that black people and Native Hawaiians are more likely to develop lung cancer from smoking. It compared their risk to whites, Japanese-Americans and Latinos.
Researchers at the University of Southern California and the University of Hawaii did the new study. The New England Journal of Medicine published the findings. The eight-year research studied more than 180,000 people. They included present and former smokers and people who never smoked. Almost 2.000 people in the study developed lung cancer.
Researchers say genetics (遺傳學) might help explain the racial and ethnic（種族的） differences. There could be differences in how people's bodies react to smoke. But environmental influences, including the way people smoke, could also make a difference.
African-Americans and Latinos in the study are reported smoking the fewest cigarettes per day. Whites are the heaviest smokers. But the scientists point out that blacks have been reported to breathe cigarette smoke more deeply than white smokers. This could fill their lungs with more of the chemicals in tobacco that cause cancer.
Scientists know that some diseases effect different groups differently. And some drug companies have begun to develop racially targeted (針對) medicines. Last June, the United States Food and Drug Administration approved a drug designed to treat heart failure in black patients. The name is BiDil. The agency called it "a step toward the promise of personalized medicine."
小題1:Researchers agree that it is     that may probably determine black people’s risk of lung cancer.
A．the larger amount of smoking than white people
B．the living style or habit of the blacks
C．the depth of cigarette smoke into their lungs
D．the physical strength to react to cigarette smoke
小題2:People in the new study are made up of         .
A．heavy smokers in AmericaB．smokers and non-smokers
C．the Asians and HawaiiansD．the black and white people
小題3:The production of BiDil referred to in the last paragraph is to     .
A．explain different races react to some diseases differently
B．tell the readers that racial differences exist in smokers
C．show a big step people have taken in the medicine area
D．support the idea that it is easy for blacks to have cancers
小題4:Which of the following statements is TRUE according to the author?
A．The way of smoking may increase the risk of lung cancer.
B．Race has nothing to do with the risk of having a lung cancer.
C．The research was started by the New England Journal of Medicine.
D．he risk of lung cancer lies I how much a person smokes.

小題1:C
小題2:B
小題3:A
小題4:A

試題分析：本文介紹了不同種族得肺癌的幾率和原因，主要是由抽煙的不同方式導致，還有藥品公司也針對這一現(xiàn)象研發(fā)了適合黑人的藥物。
小題1:細節(jié)題:從第四段的句子：But the scientists point out that blacks have been reported to breathe cigarette smoke more deeply than white smokers. This could fill their lungs with more of the chemicals in tobacco that cause cancer. 可知黑人把煙吸到肺里增加得肺癌的危險。選C。
小題2:細節(jié)題：從第二段的句子：They included present and former smokers and people who never smoked.可知受測試的人有抽煙的還有不抽煙的。選B
小題3:細節(jié)題：從最后一段的句子：Scientists know that some diseases effect different groups differently. 可知不同種族的人對不同疾病有不同的反映。選A
小題4:細節(jié)題：從第三段的句子：But environmental influences, including the way people smoke, could also make a difference.可知抽煙的方式 肺癌的危險，答案是A
點評：這篇文章難度適中，但和題目相關(guān)的有的涉及到一些長句的理解，要求考生長句的分析能力，并考查學生的概括能力，題目也以細節(jié)題為主，只要細心就行。
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