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
21
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
Mysister’sprofessorhadher______herpapermanytimesbeforepresentingitto
Hello,everyone.Itisagreatpleasuretohaveyouasassistantstohelp【B1
[originaltext]M:ThisTVsetisgettingworseandworse.Nowitdoesn’tworkat
某一非确定性有限自动机(NFA)的状态转换图如下图所示,与该NFA等价的正规式是
利率变化对个人投资理财策略会产生影响,当预期未来利率水平下降时,一般来说个人投资
()以来,全球经济一体化进程加快,金融技术日新月异,银行的经营规模越来越大
运用工程网络计划的方法编制进度计划,有利于实现进度控制的科学化,其表现为()
以下哪种病易引起肺梗死A:臁疮 B:脱疽 C:股肿 D:青蛇毒 E:压疮
关于商业银行个人理财业务,下列表述中错误的是( )。A.在理财计划存续期间,商
手外伤的术后处理,不正确的是A.抬高患肢防止肿胀 B.注射破伤风抗毒血清 C
最新回复
(
0
)