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A few degrees can make a big difference when it comes to food storage. Foods
A few degrees can make a big difference when it comes to food storage. Foods
游客
2024-01-26
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问题
A few degrees can make a big difference when it comes to food storage. Foods can go bad if they get too warm. But for many of the world’s poor, finding a good way to keep food cool is difficult. Refrigerators are costly and they need electricity.
Yet spoiled food not only creates health risks but also economic losses. Farmers lose money when they have to throw away products that they cannot sell quickly.
But in 1995 a teacher in northern Nigeria named Mohammed Bah Abba found a solution. He developed the "Pot-in-Pot Preservation/Cooling System." It uses 2 round containers made of clay. A smaller pot is placed inside a larger one.
The space between the 2 pots is filled with wet sand. The inner pot can be filled with fruit, vegetables or drinks. A wet cloth covers the whole cooling system.
Food stored in the smaller pot is kept from spoiling through a simple evaporation process. Water in the sand between the 2 pots evaporates through the surface of the larger pot, where drier outside air is moving.
The evaporation process creates a drop in temperature of several degrees. This cools the inner pot and helps keep food safe from harmful bacteria. Some foods can be kept fresh this way for several weeks.
People throughout Nigeria began using the invention. And it became popular with farmers in other African countries. Mohammed Bah Abba personally financed the first 5,000 pot-in-pot systems for his own community and five villages nearby.
In 2000, the Rolex Watch Company of Switzerland honored him with the Rolex Award for Enterprise. This award recognizes people trying to develop projects aimed at improving human knowledge and well-being.
A committee considers projects in science and medicine, technology, exploration and discovery, the environment and cultural history. Winners receive financial assistance to help develop and extend their projects.
The award is given every 2 years. The most recent one was given last year. [br] According to the first paragraph, without a refrigerator, the poor people have to suffer in their_____.
选项
A、health conditions
B、economic development
C、industrial technology
D、social status
答案
A
解析
从第2段第1句的not only…but also…句型可知该句是承上启下句,表明食物变质后对买不起冰箱的人造成两种影响,其中第1段提到是该句的承上,即对健康的影响,第2段提到是该句的启下,即对经济的影响。虽然本题问的是without a refrigerator而不是“食物变质”对穷人有什么影响,但是从第1段可知“食物变质”正是因为“没有冰箱”引起,可知本题实际上就是问第1段提到的“食物变质”对穷人的影响,本题应选A。
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