2. 财经
  3. The United Nations says the world’s population will increase by 34 percent by the year 2050．Scientists and others know it will b

The United Nations says the world’s population will increase by 34 percent by the year 2050．Scientists and others know it will b

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问题 The United Nations says the world’s population will increase by 34 percent by the year 2050．Scientists and others know it will be difficult to meet the food needs of so many people．A recent study shows that soybean crops and computers may help deal with the problem．
    The U．N．predicts food production must increase by 70 percent to meet the needs of a richer population．The U．N．expects more people will live in cities than in rural areas．But today there is little too low increase in the productivity of major crops．Kenneth Quinn is the president of the World Food Prize Foundation．He says the need to increase food production is the greatest difficulty humanity has ever faced．“There’s going to be another 2 billion people on our planet between now and 2050 and how are we going to produce enough food for them to eat?” asked Quinn．
    Darren Drewry is a scientist at the American Space Agency，NAS
What’s the main idea of the text?
选项 A、A more productive soybean is found to solve the future food shortages．
B、Scientists have done many researches to deal with food shortages．
C、Soybeans are the only solution to solve the food shortages．
D、There will be a great food shortage in 2050．
答案A
解析 这篇短文主要讲的是科学家发现了新的大豆可以解决未来的粮食短缺，B、D两项不够准确，C项是错误的，大豆是目前发现的一种方法，不一定是唯一方法。故本题选A。
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