首页
登录
职称英语
A new study in West Africa shows how farm irrigation systems powered by the
A new study in West Africa shows how farm irrigation systems powered by the
游客
2023-08-24
36
管理
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. [br] 【B5】
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
drip
解析
此处应填入名词,与irrigation一起修饰名词systems。drip意为“水滴”。
转载请注明原文地址:https://tihaiku.com/zcyy/2954727.html
相关试题推荐
______(受邀参加聚会的大多数艺术家)werefromSouthAfrica.A/Themajorityoftheartistsinvi
Atsomepointin2008,someone,probablyineitherAsiaorAfrica,madethe
Atsomepointin2008,someone,probablyineitherAsiaorAfrica,madethe
[originaltext]PhillisWheatleywasayoungAfrican-Americanslavewhobelon
[originaltext]PhillisWheatleywasayoungAfrican-Americanslavewhobelon
[originaltext]AnewreportfindsthatWestAfricahasbecomeamajorhubof
[originaltext]AnewreportfindsthatWestAfricahasbecomeamajorhubof
[originaltext]AnewreportfindsthatWestAfricahasbecomeamajorhubof
[originaltext]AnewreportfindsthatWestAfricahasbecomeamajorhubof
AnewstudyinWestAfricashowshowfarmirrigationsystemspoweredbythe
随机试题
TheauthorofthisarticlethinksthatthelateEmeryTobinisthemostoutstand
[originaltext]M:Excuseme,wherecouldIfindrice?W:Theregular-pricedish
A.200jV B.200V C.20V D.2jV
在电气工程图中导线的敷设部位一般要用文字符号进行标注,其中wc/cc表示沿墙沿顶
房地产经纪人良好的判断力主要凭借自己()。A.丰富的阅历 B.幽默的语言
引起自发性气胸最常见的疾病是A.慢性阻塞性肺疾病 B.肺结核 C.肺癌 D
(2021年真题)下列各项中,属于外来原始凭证的有( )。A.出差取得的住宿发
与传统融资方式相比较,项目融资的特点有( )。A、信用结构多样化 B、融资成
先张法预应力混凝土T形梁施工时,张拉台座应与张拉各阶段的受力状态适应,构造应满足
消防工程验收的规定错误的是()。A.住房和城乡建设主管部门对建设工程实施消防设计
最新回复
(
0
)