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
2023-07-01
57
管理
问题
(22)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.(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(泥土). 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、He sold his invention to make money.
B、He preferred invention to teaching.
C、He was honored with an award for his teaching method.
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/2799476.html
相关试题推荐
[originaltext]W:Tom,Iheardyoufailedthetennismatch.What’swrongwithyo
[originaltext]W:Tom,Iheardyoufailedthetennismatch.What’swrongwithyo
[originaltext]W:Tom,Iheardyoufailedthetennismatch.What’swrongwithyo
[originaltext]W:Tom,Iheardyoufailedthetennismatch.What’swrongwithyo
[originaltext]W:Ithinktheairinthecityisseriouslypolluted.Itishorri
[originaltext]W:Ithinktheairinthecityisseriouslypolluted.Itishorri
[originaltext]W:Ithinktheairinthecityisseriouslypolluted.Itishorri
[originaltext]W:Ithinktheairinthecityisseriouslypolluted.Itishorri
[originaltext]W:Ithinktheairinthecityisseriouslypolluted.Itishorri
[originaltext]W:Ididn’texpectthedormitorytobesonoisy.Theremustbeso
随机试题
Diseasecanbeoneofthemostpowerfulfactorsincheckingpopulationgrowt
洋为中用tomaketheforeignserveChina
Strictlyspeaking,ChristmasisthecelebrationofthebirthofJesusforpeople
Thetypicalpre-industrialfamilynotonlyhadagoodmanychildren,butnume
A.男女 B.上下 C.天地 D.左右 E.水火《内经》所谓"阴阳之征兆
瑞士教育学家()在《论教学方法》一书中首次提出了使“教育心理学化”的设想。
国外某研究机构针对网上购物行为进行调查,随机抽取2万名网络购物消费者,对其进行“
()对于聚集之处相当于捷径对于()A.荟萃;取巧之思 B.渊薮;速成之法
(2016年真题)社会策划模式实施策略中,自我评估的内容是()。A.寻找既有解决
图示电路中,已知US=6V,R1=1Ω,R2=2Ω,R3=4Ω,开关闭合前电路处
最新回复
(
0
)