2. 外语
  3. Researchers in Japan have discovered some eye-opening news about coffee: It may help 【S1】______ the most common type of liver ca

Researchers in Japan have discovered some eye-opening news about coffee: It may help 【S1】______ the most common type of liver ca

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问题     Researchers in Japan have discovered some eye-opening news about coffee: It may help 【S1】______ the most common type of liver cancer.
    A 【S2】______ of more than 90,000 Japanese found that people who drank coffee daily or nearly every day had half the liver cancer risk of those who 【S3】______ drank coffee. The protective 【S4】______ occurred in people who drank one to two cups a day and increased at three to four cups.
    Animal studies have 【S5】______ a protective association of coffee with liver cancer, so the research team led by Monami Inoue of the National Cancer Center in Tokyo 【S6】______ a 10-year public health study. They found the 【S7】______ occurrence of liver cancer in people who never or almost never drank coffee was 547.2 cases per 100,000 people over 10 years. But for people who drank coffee daily the 【S8】______ was 214.6 cases per 100,000.
    The caffeine in coffee has been shown in other studies to prompt mental alertness in many drinkers, although it makes some people 【S9】______ Some studies have suggested caffeine aggravates symptoms of menopause (更年期) or intensifies the 【S10】______ effects of some antibiotics. Heavy caffeine use has been linked to miscarriage (流产). But studies have also shown that a skin cream spiked with caffeine lowers the risk of skin cancer in mice.

A) imposed           B) suggested          C) prevent          D) analyzed  
E) never             F) side               G) study            H) likely
I) impossible        J) risk               K) effect           L) transmit
M) nervous           N) treatment  
【S4】
选项
答案K
解析 空格处需填入名词，与protective搭配。effect意为“效果”，该句意为：咖啡在每天喝一两杯而后逐渐增加到三、四杯咖啡的人身上会产生保护效果。
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大学英语四级

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