首页
登录
职称英语
[originaltext] (22)A few degrees can make a big difference when it comes to
[originaltext] (22)A few degrees can make a big difference when it comes to
游客
2024-01-27
18
管理
问题
(22)A few degrees can make a big difference when it comes to food storage. Food can so 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. (23) 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" or "Cooling System." It uses two round containers made of clay (黏土). A smaller pot is placed inside a larger one. The space between the two 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. (24) Food in the smaller pot is kept from spoiling through a simple evaporation process. Water in the sand between the two 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. The invention became popular with farmers in other African countries. (25)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.
22. What is an important factor in food storage?
23. Why does the speaker say spoiled food can create economic losses?
24. How does the pot-in-pot system work?
25. What can we learn about Mohammed Bah Abba?
选项
A、People who eat spoiled food may get sick.
B、Farmers have to throw away spoiled products.
C、Farmers have to sell the spoiled products quickly at a low price.
D、People need money to dispose of the spoiled food.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3399820.html
相关试题推荐
[originaltext]Zimbabwe’sinflationratehasincreasedsharplyinthepastt
[originaltext]Americanastronautswouldnotreturntothemoonasplanedif
[originaltext]Americanastronautswouldnotreturntothemoonasplanedif
[originaltext]"Whereistheuniversity?"isthequestionmanyvisitorstoCa
[originaltext]"Whereistheuniversity?"isthequestionmanyvisitorstoCa
[originaltext]Menhavetraveledeversincetheyfirstappearedontheearth.
[originaltext]Menhavetraveledeversincetheyfirstappearedontheearth.
[originaltext]Ifwewanttomeasurevoicefeaturesveryaccurately,wecanu
[originaltext]M:WhenIsayIliveinSweden,peoplealwayswanttoknowabout
[originaltext]M:WhenIsayIliveinSweden,peoplealwayswanttoknowabout
随机试题
Manyofourdreams________impossibleinthepasthavecometrue.A、wereconsidere
Directions:Forthispart,youareallowed30minutestowrite,4LetterofComp
SpeechActTheorywasfirstproposedby______.A、JohnSearleB、NormChomskyC、De
卫生服务价格的影响因素有哪些?
若三相四线制供电系统的相电压为220V,则线电压为()。A.220V B.22
一商品的进价比上月低了5%,但超市仍按上月售价销售,其利润率提高了6个百分点,则
目前,大连商品交易所的套利指令有()。A.跨品种套利指令 B.压榨利润套
双侧唇裂修复术的最佳手术年龄是A.1~2个月 B.3~6个月 C.7~11个
某工厂需要修建4台设备的基础工程,施工过程包括基础开挖、基础处理和浇筑混凝土。因
最新回复
(
0
)