2. 外语
  3. A、Consumer class rises in developing countries. B、Four-footed livestock are easier to raise. C、Farm animals often provide nutrie

A、Consumer class rises in developing countries. B、Four-footed livestock are easier to raise. C、Farm animals often provide nutrie

admin2017-12-08  89
问题  
As the world population rises, the demand for meat, eggs and dairy products is soaring in developing countries. The Worldwatch Institute warns that without safeguards the demand could strain the environment and pose public health risks.
    Over the last 30 years, the number of farm animals—and that includes both four-footed livestock like cattle, pigs, goats and sheep, as well as poultry, like chickens—has increased about 23 percent. So now we have about 20 billion farm animals worldwide.
    There are two main reasons for the increase. First, it is the urbanization and rising incomes particularly in developing and emerging countries. China, Brazil, India—they’ve all seen their middle class or consumer class rise over the last 30 years. And what tends to happen when people have a little bit more money to spend is they spend it on higher quality food. They tend to buy more milk or cheese or meat.
3 What is the possible consequence of increasing demand for meat?
4 Why does the number of farm animals increase?
选项 A、Consumer class rises in developing countries.
B、Four-footed livestock are easier to raise.
C、Farm animals often provide nutrients.
D、People are fond of milk, cheese and meat.
答案A
解析 题目问为什么家畜数量增加。新闻中后段讲了家畜增加的两个原因，第一个原因是城市化和收入的增加，其中提到在中国、巴西、印度等国，在过去30年，中产阶级(middle class)或称消费阶层(consumer class)增多了，A说消费阶层增多，与新闻内容相符。
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