According to the Oxfam report, the next 20 years will see ______ per cent increase in the need for food.

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问题 According to the Oxfam report, the next 20 years will see ______ per cent increase in the need for food.
An international aid group is calling for an overhaul of the world’s food system, saying prices for staples such as corn will double in the next 20 years. (25) London-based Oxfam released a report Tuesday saying demand for food is expected to rise 70 percent by 2030, as climate change, lower crop yields and rising energy prices pressure food supplies.
    The group says those hardest hit will be the poor, who spend as much as 80 percent of their income on food. (26) The report recommends addressing the problem by boosting food reserves, ending the use of food crops in biofuels, and ending speculation in worldwide food markets. It also calls for a shift away from largescale commercial food producers to smaller local growers.

选项 A、20
B、70
C、80
D、17

答案B

解析 数字题。新闻中指出,乐施会星期二发布的一份报告称世界粮食需求量将在2030年前增长70%。故正确答案是B。本题是数字题,听音时可在选项旁边做笔记。A项是利用新闻中的20 years进行干扰;C项指的低收入人群用收入购买食物的比例;D项则是正确数字70的语音干扰。
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