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
33
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.
【B7】
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
irrigation
解析
此处需填入形容词或名词修饰systems。irrigation意为“灌溉”。
转载请注明原文地址:https://jikaoti.com/ti/cYqFFFFM
0
大学英语六级
相关试题推荐
Somepeople’searsproducewaxlikebusylittlebees.Thiscanbeaproblemeventhoughearwax(耳垢)appearstoserveanimportant
Somepeople’searsproducewaxlikebusylittlebees.Thiscanbeaproblemeventhoughearwax(耳垢)appearstoserveanimportant
TheSupremeCourtwillhearargumentstodayabouttheuseofpublicmoneyfortheprivateschoolingofchildrenwithspecialnee
A、Tomakegreatprofit.B、Toboostmarketshare.C、Todistinguishfromimitators.D、Toenhanceitpopularity.C短文提到,宜家推出的PS系列旨在将
NormanBorlaug:’FatheroftheGreenRevolution’Fewpeoplehavequietlychangedtheworldforthebettermorethanthisru
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulatedareasandaridregionsoftheworldwasoncetrea
A、Itcatcheseveryaudience’sattention.B、Itmakestheaudiencedaydreamers.C、Itdetermineslisteners’understandinglevel.D
Manypeoplethinkofdesertasbarrenregions,but______(许多动植物已经适应那里的生活).
A、Hehasnotbeentothenewrestaurantyet.B、Hewouldliketogotothenewrestaurantwiththewoman.C、Thefoodatthenewr
A、Shewantstoliveinthesuburbs.B、Sheisoffendedbyhernaughtychildren.C、Shedisagreeswithfather.D、Sheturnsadeafe
随机试题
下列关于起征点和免征额的说法中,不正确的是()。
阅读下面的教学片段。教师:为什么说鸡、鸭、猪是动物?学生:因为它们都会叫。教师:是吗?蚯蚓不会叫,可它也是动物呀!学生:蚯蚓会爬,会爬会走的生物都叫动物。教师:鱼可不会爬,也不会走,只会在水里游泳;鸟会飞,它们不是动物?学生:是动物,因为它们都
古合实际论述艺术鉴赏的基本过程和审美效应。
初孕妇,27岁。妊娠38周,骨盆外测量:骶耻外径19.5cm,髂棘间径25cm,髂嵴间径28cm,坐骨棘间径9cm,坐骨结节间径7cm。该孕妇的骨盆应诊断是
A、0.6~1.5小时B、1.5~4小时C、0.25~0.5小时D、6~12小时E、14~20小时正规胰岛素的作用峰时为()。
期货公司应当执行期货投资咨询业务管理制度中的客户回访与投诉规定,明确客户回访与投诉的(),及时、妥善处理客户投诉事项。
证券公司经营证券经纪业务的,其净资本不得低于人民币()。
根据《行政强制法》规定,下列关于查封、扣押权及其实施程序和人员的说法中,正确的是()。
零基预算法的优点包括()。
教师在课前的一系列准备工作叫作()。
最新回复
(
0
)