2. 外语
  3. Old and Active It is well-known that life expectancy is longer in Japan than in most other countries. A【C1】______report also

Old and Active It is well-known that life expectancy is longer in Japan than in most other countries. A【C1】______report also

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问题                         Old and Active
    It is well-known that life expectancy is longer in Japan than in most other countries. A【C1】______report also shows that Japan has the longest health expectancy in the world. A healthy long life is the result of the【C2】______in social environment.
    Scientists are trying to work【C3】______exactly what keeps elderly Japanese people so healthy, and whether there is a lesson to be【C4】______from their lifestyles for the rest of us. Should we【C5】______any changes to our eating habits, for instance, or go jogging each day before breakfast? Is there some secret【C6】______in the Japanese diet that is particularly【C7】______to the human body?
    Another factor【C8】______to the rapid population aging in Japan is a decline in birthrate. Although longer life should be celebrated, it is【C9】______considered a social problem. The number of older people had【C10】______in the last half century and that has increased pension and medical costs. The country could soon be【C11】______an economic problem, if there are so many old people to be looked【C12】______, and relatively few younger people working and paying taxes to support them.
    【C13】______the retirement age from 65 to 70 could be one solution to the problem. Work can give the elderly a【C14】______of responsibility and mission in life. It’s important that the elderly play active【C15】______in the society and live in harmony with all generations.
【C6】
选项 A、ingredient
B、component
C、portion
D、helping
答案A
解析 根据句子结构来看，这里缺少的是一个名词，所以首先排除D。再看A、B、C三个选项，这三个词都可以表示“部分，要素，成分”的意思，但是ingredient通常用来表示原料，成分，component通常表示文章，学术观点或者电子产品中的部分或组件，而portion更多的是表示数量上的一部分，此处是饮食，食物中的原料，成分，因此最佳答案应该是ingredient。
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