首页
登录
职称英语
[originaltext]A few degrees can make a big difference when it comes to food sto
[originaltext]A few degrees can make a big difference when it comes to food sto
游客
2024-01-23
60
管理
问题
A few degrees can make a big difference when it comes to food storage. Food 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” or “Cooling System.” It uses two round containers made of clay. 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. 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. 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.
Questions 22 to 25 are based on the passage you have just heard.
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、He sold his invention to make money.
B、He preferred invention to teaching.
C、He was honored with an award for his teaching methods.
D、He financed 5 000 pot-in-pot systems to help people.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3387738.html
相关试题推荐
[originaltext](25)Didyouknowthat,besideslargerplaceslikeFranceand
[originaltext](25)Didyouknowthat,besideslargerplaceslikeFranceand
[originaltext]Weknowwehavetopayforwhatweget.Ifwebuyfood,weha
[originaltext]Weknowwehavetopayforwhatweget.Ifwebuyfood,weha
[originaltext](25)Didyouknowthat,besideslargerplaceslikeFranceand
[originaltext](25)Didyouknowthat,besideslargerplaceslikeFranceand
[originaltext](25)Didyouknowthat,besideslargerplaceslikeFranceand
[originaltext]Weknowwehavetopayforwhatweget.Ifwebuyfood,weha
[originaltext]Weknowwehavetopayforwhatweget.Ifwebuyfood,weha
[originaltext](22)Today’sconsumerswantbeautifulhandcraftedobjectsto
随机试题
Onesummerdaymyfathersentmetobuywireforourfarm.At16,Iliked【C1】
Thequestionsinthisgrouparebasedonthecontentofapassage.Afterreading
Whydon’tbirds(71)lostontheirlongflightsfromoneplacetoanother?
Manytheoriesconcerningthecausesofjuveniledelinquency(crimescommitte
在客户法人治理结构评价中,对客户控股股东行为评价需考虑的关键因素有()。A.控
A.{x|-1≤x
请按所提供的教材片段设计1课时的教学简案。(也可以是单元中的一个子篇目) 要求
下列工作步骤属于价值工程分析阶段的是()。A、功能整理 B、功能评价 C、概
A.人虱B.鼠虱、鼠蚤C.恙螨D.蝉E.蚊恙虫病的传播媒介是
患者男,40岁。血尿3天,膀胱镜检见膀胱底部有一15cm×1.Ocm新生物,有蒂
最新回复
(
0
)