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
2023-06-21
22
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/2771452.html
相关试题推荐
[originaltext]Somediseasesareinfectious—likecoldsandfluButwhatabou
[originaltext]Climatechangeismakingitharderthanusualforscientists
[originaltext]Climatechangeismakingitharderthanusualforscientists
[originaltext]I’mgladtoseesomanyofyouhere.We’vebecomereallyalar
[originaltext]I’mgladtoseesomanyofyouhere.We’vebecomereallyalar
[originaltext]W:Hello?M:Hi,Jessica?W:Oh,hi,Mike.What’sup?M:Sorryto
[originaltext]W:Hello?M:Hi,Jessica?W:Oh,hi,Mike.What’sup?M:Sorryto
[originaltext]W:Hi,Mr.JohnsoaWhendoyouusuallygetup?M:[8]Iusuallyge
[originaltext]W:Hi,Mr.JohnsoaWhendoyouusuallygetup?M:[8]Iusuallyge
[originaltext]Parentsarebeingurgedtodownloadafreeappwhichtellsth
随机试题
American’sLeisureActivitiesLeisureactivities【T1】______.Bothmenand
[originaltext]M:It’sasimplequestionatthecenterofalmostanydiscussion
KeepingitintheFamilyForexpatparents,passingontheirnativelanguagesca
I’velovedmymother’sdesksinceIwas
A.调整胃肠运动B.强心C.利胆保肝D.解热E.降压利水渗湿药的主要药理作用包括
万达房地产经纪公司(以下简称万达公司)经纪人万小姐与客户张先生洽谈一笔房地产买卖
共用题干 第一篇TheUnitedStatesperceivesits
2019年1-2月份,全国固定资产投资(不含农户)44849亿元,同比增长6.1
金融租赁公司的业务主要包括()。A.同业拆借 B.融资租赁业务
(2012年真题)在控制检查风险时,注册会计师应当采取的有效措施是()。A
最新回复
(
0
)