Elderly adults who regularly drink green tea may stay more active and independent than their peers over time，according to a Japanese study that covered thousands of people．
Green tea contains antioxidant chemicals that may help ward off the cell damage that can lead to disease．Researchers have been studying green tea's effect on everything from cholesterol(胆固醇)to the risk of certain cancers，with mixed results so far．
For the new Japanese study，researchers decided to examine the question of whether green tea drinkers have a lower risk of frailty and disability as they grow older．
Tomata and his colleagues followed nearly 14，000 adults aged 65 or older for three years．
They found those who drank the most green tea were the least likely to develop “functional disability”，or problems with daily activities or basic needs，such as dressing or bathing．
Specifically，almost 13 percent of adults who drank less than a cup of green tea per day became functionally disabled，pared with just over 7 percent of people who drank at least five cups fl day．
The study did not prove that green tea alone kept people active as they grew older．
Green-tea lovers generally had healthier diets，including more fish，vegetables and fruit，as well as more education．lower smoking rates，fewer heart attacks and strokes，and greater mental sharpness．
They also tended to be more socially active and have more friends and family to rely on．
Although it's not clear how green tea might offer a buffer(缓冲剂)against disability，Tomata's team did note that one recent study found green tea extracts(提炼物)seem to increase leg muscle strength in older women．
While green tea and its extracts are considered safe in small amounts，they do contain caffeine and small amounts of vitamin K，which means it could block drugs that prevent blood thickened．
【小题1】Which of the following can summarize the passage best?A．Green tea makes you less active．B．Green tea makes you less disabled．C．Green tea makes you more friendly．D．Green tea makes you more educated．【小题2】The underlined word“ward off”in Paragraph 2 probably means .A．formB．absorbC．remove D．prevent【小题3】Tomata and his colleagues wanted to .A．prove whether the Japanese study is correctB．know if green tea drinkers are independentC．help nearly 14，000 adults aged 65 or olderD．study green tea's effect on cholesterol【小题4】Which of the following is NOT the advantage of green tea?A．Reduce functional disability．B．Keep old people active．C．Make more friends．D．Suffer fewer heart attacks．【小题5】It can be inferred from the last paragraph .A．green tea is safe to drinkB．green tea should be drunk properlyC．green tea is poisonous for old peopleD．vitamin K is helpful to usB
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(答案→)B
解析：文章讲述的是常喝绿茶可以减少人们患病尤其残疾类得疾病。
【小题1】主旨大意题。通读全文可知文章讲述的是常喝绿茶可以减少人们患病尤其残疾类得疾病。
【小题2】猜测词义题。根据下一行Researchers have been studying green tea's effect on everything from cholesterol(胆固醇)to the risk of certain cancers，with mixed results so far。可知这个词是指绿茶能够预防这样的疾病。C太绝对化了。
【小题3】细节题。根据第三段内容For the new Japanese study，researchers decided to examine the question of whether green tea drinkers have a lower risk of frailty and disability as they grow older．
【小题4】细节题。根据第六段The study did not prove that green tea alone kept people active as they grew older。可知B正确。
【小题5】推断题。根据文章最后一段While green tea and its extracts are considered safe in small amounts，they do contain caffeine and small amounts of vitamin K，which means it could block drugs that prevent blood thickened．可知尽管绿茶有很多好处，但是也有一些问题。所以要恰当合理的饮用绿茶。