练习:
1. What on earth in both fruits and vegetables and their juices plays the most important role in reducing risk for diseases?
A Proteins.
B Vitamins.
C Carbohydrates.
D Fiber and antioxidant.
2. The judgment that fruit and vegetable juices are lels beneficial to reducing chronic disease development is______.
A evident
B obvious
C incorrect
D conclusive
3. The review of the literature has documented the important role of fruit and vegetable juices in reducing the risk of various disease, ______in particular.
A lung problems
B cancer and cardiovascular disease
C stomach and intestine disorders
D ear, nose and throat troubles
4. A large epidemiological study also found that using various 100K fruit and vegetable juices contributed to a reduced risk for______.
A Alzheimer’s disease
B inherited disease
C infectious disease
D blood-transmitted disease
5. People who drink 3～4 servings of fruit and vegetable juices weekly may______risk of developing Alzheimer’s disease______those who drink only once a week.
A have twenty-three percent higher, than
B have three quarters lower, than
C be one hundred and twenty-three percent as high, as
D be one hundred and seventy-six percent as high, as
答案与题解：
1．D 第二段第二句及第三句说到，降低患病危险性的作用应该归功于果汁和全果均含有的纤维和抗氧化剂。其他A、B、(：三个选项文章均未提及。
2．C 第三段第二句说到，在与慢性病的发生的关系方面，认为果汁不如全果有营养的观点是 unjustified(“不正当的”)，也就是“不正确”(incorrect)。
3．B 第四段第二句说到，果汁在降低患各种疾病中的确起着重要作用，尤其是癌症和心血管疾病。这里in particular正是especilly的意思。
4．A 第四段最后一句说到，饮用果汁也与降低患阿尔茨海默病的危险性有关。
5．B 第五段第一句说到，每周喝3～4份果汁的人与每周只喝一次以下的人相比，其患阿尔茨海默病的危险性下降了76%，76%就是3/4，因此B项是正确答案。A项是高出23%，C项是每周喝一次的人的123%，D项是每周喝一次的人的176%，均不正确。
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