首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers. T
A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers. T
admin
2014-06-30
29
问题
A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers. The study in Benin found that solar-powered pumps are【B1】______in supplying water, especially during the long dry season.
Sub-Saharan Africa is the part of the world with the least food【B2】______. The United Nations Food and Agriculture Organization【B3】______that more than one billion of the world’s people faced hunger last year. Around 265 million of them live south of the Sahara Desert.【B4】______rainfall is one of their main causes of food shortages.
Jennifer Burney from Stanford University in California led the study. The research team helped build three solar-powered【B5】______irrigation systems in northern Benin. Between thirty and thirty-five women used each system to pump water from the ground or a stream. Each woman【B6】______farming her own 120 square meters of land. They also farmed other land collectively.
The solar-powered【B7】______systems produced an average of nearly two metric tons of vegetables per month. During the first year, the women kept a monthly average of almost nine kilograms of vegetables for home use. They sold the【B8】______produce at local markets. The earnings greatly increased their ability to buy food during the dry season which can last six to nine months.
The researchers note that only four percent of the cropland in sub-Saharan Africa is irrigated. Using solar power to pump water has higher costs【B9】______. But the study says it can be more economical in the long term than using fossil fuels like gasoline. And solar power is【B10】______friendly.
【B8】
A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers. The study in Benin found that solar-powered pumps are(26)effective in supplying water, especially during the long dry season.
Sub-Saharan Africa is the part of the world with the least food(27)security. The United Nations Food and Agriculture Organization(28)estimates that more than one billion of the world’s people faced hunger last year. Around 265 million of them live south of the Sahara Desert.(29)Lack of rainfall is one of their main causes of food shortages.
Jennifer Burney from Stanford University in California led the study. The research team helped build three solar-powered(30)drip irrigation systems in northern Benin. Between thirty and thirty-five women used each system to pump water from the ground or a stream. Each woman(31)was responsible for farming her own 120 square meters of land. They also farmed other land collectively.
The solar-powered(32)irrigation systems produced an average of nearly two metric tons of vegetables per month. During the first year, the women kept a monthly average of almost nine kilograms of vegetables for home use. They sold the(33)surplus produce at local markets. The earnings greatly increased their ability to buy food during the dry season which can last six to nine months.
The researchers note that only four percent of the cropland in sub-Saharan Africa is irrigated. Using solar power to pump water has higher costs(34)at first. But the study says it can be more economical in the long term than using fossil fuels like gasoline. And solar power is(35)environmentally friendly.
选项
答案
surplus
解析
此处需填入形容词或名词修饰produce。surplus意为“剩余的”。
转载请注明原文地址:https://kaotiyun.com/show/fO17777K
0
大学英语六级
相关试题推荐
Tenyearsago,JoeAllenbeganstudyingadiversegroupofseventhgradersneartheUniversityofVirginia,wherehe’saprofess
Tenyearsago,JoeAllenbeganstudyingadiversegroupofseventhgradersneartheUniversityofVirginia,wherehe’saprofess
WhenaBrainForgetsWhereMemoryIsEverysooften,seeminglynormalpeoplesuddenlywalkoutoftheirlivesanddisappear,
AreyourFacebookfriendsmoreinterestingthanthoseyouhaveinreallife?Hashigh-speedInternetmadeyouimpatientwithslo
A、Itcanbecontrolledremotely.B、Ittakesmuchroomofacar.C、Ithassomemeritsanddrawbacks.D、Itisratherexpensive.A在
A、Inplaceofphysicaltherapy.B、Tocontrolbrainproblems.C、Topreventheartdisease.D、Torelievedepression.D事实细节题。对话中男士提到
TricksoftheTrade[A]Aschildren,wearetaughtthatworkinghardwillgetusgoodgrades.Whenitcomestoyourjob,thesam
A、Takerupherfirstjobatschool.B、Spendhersummerholiday.C、StudyforherMaster’sdegree.D、Studyasanexchangestudent.
A、Noneofthembecamethesufferersofdepression.B、Mostofthemweretroubledbydepression.C、Someofthemwerediagnosedwit
A、Togetsomepocketmoneyfromherfather.B、Topersuadehimintoallowinghermorefreedom.C、Todistracthimfromaskingabou
随机试题
天然存在的强心苷大多是
酒精中毒行血液透析的适应证,不包括
根据代理的有关规定的理解,下列哪一选项是正确的?
有关浮力法说法正确的有()。
当桥梁总体技术状况为2类时,应采取的养护措施为()。
下列属于工程监理企业安全生产管理的主要责任和义务是()。
为新增操作员设置操作权限。
“备案号”栏:()。“征免性质”栏:()。
在正常经营情况下,只要企业存在固定成本,那么经营杠杆系数必()。
《刑法》第13条规定的犯罪概念是()。
最新回复
(
0
)