大英3重修题3.doc

Part I Reading Comprehension Directions：There are four passages in this part. Choose the best answer from the four possible choices marked A), B), C) and D) and mark the corresponding letter on the Answer Sheet One with a single line through the centre. Passage One 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 (吸入，摄入), through diet or a vitamin supplement,” Dr. Cedric Garland said in a telephone interview. Garlands research team reviewed 63 studies, including several large long-term ones, on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. “Theres nothing that has this ability to prevent cancer,” he said, urging governments and public health officials to do more to fortify (增强) 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 100 international units（IU）a serving. “People might want to consider a vitamin supplement to raise their intake to 1000 IUs 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 dont produce as much of the vitamin because of their skin colour, could also benefit significantly from a higher intake,” the authors said. 1．According to the passage, people are advised to take more Vitamin D, because__. 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 2．Which of the following can no