完形填空(第51～65题，每题1分，共15分)
下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。
Diet, Alcohol Linked to Nearly One Third of Cancers
Diet is second only to tobacco as a leading __________ (51) of cancer and, along with alcohol, is responsible for nearly one third of cases of the disease __________ (52) developed countries, a leading researcher said on Tuesday.
Dr. Tim Key, of the University of Oxford, told a cancer conference that scientists are still discovering how certain foods contribute to __________ (53), but they know that diet, alcohol and obesity (肥胖) __________ (54) a major role.
"Five percent of cancers could be avoided __________ (55) nobody was obese(肥胖的)," he said. While tobacco is linked to about 30 __________ (56) of cancer cases, diet is involved in all estimated 25 percent and alcohol __________ (57) about six percent.
Obesity raises the __________ (58) of breast(乳腺), womb(子宫), bowel and kidney cancer, while alcohol is known to cause cancers of the mouth, throat and liver. Its dangerous impact is __________ (59) when combined with smoking.
Key told the meeting of the charity Cancer Research UK __________ (60) other elements of diet linked to cancer are __________ (61) unknown but scientists are hoping that the EPIC study, which is comparing the diets of 500,000 people in 10 countries and their risk of cancer, will provide some __________ (62).
Early results of the study have revealed that Norway, Sweden and Denmark have the __________ (63) consumption of fruit and vegetables among European countries while Italy and Spain have the highest. Eating at __________ (64) five portions of fruit and vegetables a day is recommended to reduce the risk of cancer.
Key, principal scientist on the EPIC study, said it is looking at dietary links to some of the most common cancers __________(65) colorectal, breast and prostate.
51. A. course
B. cause
C. court
D. reason
52. A. on
B. up
C. in
D. down
53 A. cancer
B. health
C. disease
D. man
54 A. dance
B. turn
C. take
D. play
55 A. while
B. if
C. unless
D. since
56 A. percent
B. countries
C. people
D. number
57 A. at
B. in
C. of
D. for
58 A. risk
B. degree
C. presence
D. place
59 A. reduced
B. increased
C. mysterious
D. seen
60 A. whether
B. why
C. that
D. if
61 A. still
B. also
C. although
D. however
62 A. decisions
B. questions
C. answers
D. needs
63 A. lowest
B. enough
C. daily
D. perfect
64. A. home
B. most
C. least
D. best
65. A. causing
B. including
C. illustration
D. defining