题目内容
11.Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer,saying studies showed a clear link."Our suggestion is for people to increase their intake,through diet or a vitamin supplement,"Dr.Cedric Garland said in a telephone interview.Garland's research team reviewed 63studies,including several large long-term ones,on the relationship between vitamin D and certain types of cancer worldwide between 1966and 2004."There's nothing that has this ability to prevent cancer,"he said,urging governments and public health officials to do more to fortify foods with vitamin D.Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health.Vitamin D is found in milk,as well as in some fortified orange juice,yogurt and cheeses,usually at around 100international units (IU) a serving.People might want to consider a vitamin supplement to raise their intake to 1000IUs per day,Garland said,adding that it was well within the safety guidelines established by the National Academy of Sciences.
The authors said that taking more vitamin D could be especially important for people living in northern areas,which receive less vitamin D from sunshine.
African Americans,who don't produce as much of the vitamin because of their skin colour,could also benefit significantly from a higher intake,the authors said.
29.According to the passage,people are advised to take more Vitamin D becauseC.
A.it is nutritious
B.it can't harm people's health
C.it can lower cancer risk
D.it is not taken enough every day
30.Which of the following can not help people get more Vitamin DB?
A.Having some sunshine
B.Having more meat
C.Having more fortified cheese
D.Having a vitamin supplement
31.Who can Garland probably be?A
A.A health researcher
B.A doctor
C.A scientist
D.A public health official
32.Which of the following food can lower people's chance of getting cancerD?
A.Milk
B.Fortified orange juice
C.Fortified yogurt
D.All of the above.
分析 本文是一篇科教类阅读,癌症研究人员周三呼吁人们摄取更多维生素D以降低患癌症的风险,研究显示这有明显的关系.本文以此展开,主要介绍了研究表明维他命D可以降低患癌症的几率,并且告诉了读者几种获取维生素D的方法.
解答 29.答案:C.细节理解题.根据文章中专家所说的话take more vitamin D to lower risk of cancer,可得知,多吃维他命D可以降低患癌症的几率应该选择,故选C.
30.答案:B.细节理解题.在文章中寻找有关于维他命D的食物来源,Vitamin D is found in milk,as well as in some fortified orange juice,yogurt and cheeses,并没有提到肉.故选B.
31.答案:A.推理判断题.文章的第一句话Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer可知,这是研究人员的花,第一段的最后一句话Dr.Cedric Garland said in a telephone interview.可以推断出:Dr.Cedric Garland是一个健康研究人员.故选A.
32.答案:D.细节理解题.维他命D可以降低癌症几率,所以我们要找到可以获取维他命D的来源Vitamin D is found in milk,as well as in some fortified orange juice,yogurt and cheeses,D项包含了这些食物.故选D.
点评 本文是一篇科教类阅读,题目涉及多道细节理解题,推理判断题.做题时学生应仔细阅读原文,把握文章主要内容,联系文章上下文内容并结合所给选项含义,从中选出正确答案,一定要做到有理有据,切忌胡乱猜测.
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