单选题
阅读下面的短文,文中有15处空白,每处空白给出了4个选项,请根据短文的内容从4个选项中选择1个最佳答案。
{{B}}Diet, Alcohol Linked to Nearly One Third of Cancers{{/B}}
Diet is second only to tobacco as a leading{{U}} (51) {{/U}}of cancer and, along with alcohol, is responsible for nearly one third of cases of the disease{{U}} (52) {{/U}}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{{U}} (53) {{/U}}, but they know that diet, alcohol and obesity{{U}} (54) {{/U}}a major role.
"Five percent of cancers could be avoided{{U}} (55) {{/U}}nobody was obese," he said.
While tobacco is linked to about 30{{U}} (56) {{/U}}of cancer cases, diet is involved in an estimated 25 percent and alcohol{{U}} (57) {{/U}}about six percent.
Obesity raises the{{U}} (58) {{/U}}of breast, womb, bowel and kidney cancer, while alcohol is known to cause cancers of the mouth, throat and liver. Its dangerous impact is{{U}} (59) {{/U}}when combined with smoking.
Key told the meeting of the charity Cancer Research UK{{U}} (60) {{/U}}other elements of diet linked to cancer are{{U}} (61) {{/U}}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{{U}} (62) {{/U}}.
Early results of the study have revealed that Norway, Sweden and Denmark have the{{U}} (63) {{/U}}consumption of fruit and vegetables among European countries while Italy and Spain have the highest. Eating at{{U}} (64) {{/U}}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{{U}} (65) {{/U}}colorectal, breast and prostate.
【正确答案】 B
【答案解析】从文章的题目可以得知,文章的主要内容涉及饮食、酒精与癌症的关系。不难看出,文章一开头讲的就是饮食是导致癌症的主要原因之一,吸烟排名第一,饮食紧跟其后。
【正确答案】 C
【答案解析】此处要表达的意思是“在发达国家里”。
【正确答案】 A
【答案解析】既然文章主要涉及饮食、酒精与癌症的关系,因此,此处应选“癌症”一词。
【正确答案】 D
【答案解析】从接下来的“角色”一词,便可得知此处应选能与之搭配的“扮演”一词。
【正确答案】 B
【答案解析】前一句讲到,饮食、喝酒与肥胖在癌症发生的过程中扮演重要角色,此句应为虚拟句,表示假设。
【正确答案】 A
【答案解析】从句子的主句不难看出,此处表示的是百分之多少的意思。
【正确答案】 B
【答案解析】此处应该填一个与前面介词in一样的介词。
【正确答案】 A
【答案解析】显然,此处要表示的意思是肥胖增加患某些类癌症的危险。
【正确答案】 B
【答案解析】一个人既喝酒,又吸烟,那酒精的害处应该是增加的。
【正确答案】 C
【答案解析】此处应选能引导宾语从句的连接词。
【正确答案】 A
【答案解析】此处要表示的意思是“仍旧不得而知”。
【正确答案】 C
【答案解析】从前面提到的“仍旧不得而知,但是科学家们希望”等词语可以推断,此处应选“答案”。
【正确答案】 A
【答案解析】从句子的最后一词highest便可得知,此处应选该词的反义词。
【正确答案】 C
【答案解析】众所周知,专家们建议多吃水果、蔬菜以降低患癌症的风险,可见此处应选表示“至少”意思的词语。
【正确答案】 B
【答案解析】空格之前提到了一些最常见的癌症,接下来举的是例子,因此此处应选表示“像”、“包括”等意思的词语。