首页
登录
职称英语
Scientists in India have invented a new way to produce electricity. Their in
Scientists in India have invented a new way to produce electricity. Their in
游客
2025-03-06
34
管理
问题
Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuels. It produces electricity with the power of animals. India has about eighty million bullocks(小牛). They do all kinds of jobs. They work in the fields. They pull vehicles through the streets. They carry water containers. Indian energy officials have been seeking ways to use less imported oil to provide energy. Scientists at the National Institute for Industrial Engineering in Bombay(孟买)wondered whether the millions of bullocks could help. Many villages in India lack electricity, but they have many bullocks. And often the animals are not working. One job done by bullocks is to pump water out of the well. The animals do this by walking around and around in a circle. As they walk, they turn a heavy stick that makes the pump move. This simple technology is centuries old. Scientists thought that the same technology could be used to produce electricity. Bullocks walk in a circle only two or three times a minute. This is much too slow to produce electricity, but it can create enough power to turn a series of gears(齿轮). A large gear sits next to a smaller gear. As the large gear turns, it causes the smaller gear to turn. That gear turns an even smaller one. Each gear moves faster because it is a little smaller. The smallest gear may turn extremely fast. Clocks operate with gears. So do cars and so does the device invented by the Indian scientists to produce electricity.
According to the officials in the United Nations, the idea is being tested at several places in India. The device is easy to operate and repair. And it can be moved easily. It costs about three hundred and seven dollars now to make such a device, but production of large numbers of them could cut the cost of each to about two hundred dollars. [br] Why are bullocks used to provide energy in India?
选项
A、Because bullocks have long been used by Indian people.
B、Because bullocks walk slowly and are easy to control.
C、Because there are few non-working bullocks in India.
D、Because there is not enough oil in India.
答案
D
解析
细节题。根据“Indian energy officials have been seeking…to provide energy.”可以看出印度用来发电的石油主要靠进口,所以可推测出印度本国的石油是匮乏的。因此D项正确,A、B、C项均不能用来解释用小牛发电的原因。故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3984962.html
相关试题推荐
CharlesDickens()manywonderfulcharactersinhisnovels.A、inventedB、discovere
ScientistsinIndiahaveinventedanewwaytoproduceelectricity.Theirin
ScientistsinIndiahaveinventedanewwaytoproduceelectricity.Theirin
ScientistsinIndiahaveinventedanewwaytoproduceelectricity.Theirin
ScientistscallNewton’sidea______gravitationreachesthroughouttheuniverse
Atthebeginningoflastcentury,medicalscientistsmadeaninterestingdisc
Atthebeginningoflastcentury,medicalscientistsmadeaninterestingdisc
Atthebeginningoflastcentury,medicalscientistsmadeaninterestingdisc
Atthebeginningoflastcentury,medicalscientistsmadeaninterestingdisc
Atthebeginningoflastcentury,medicalscientistsmadeaninterestingdisc
随机试题
Thereare(36)TVchannels(频道)intheUnitedStates.Americansgetalotof
[originaltext]M:Wouldyoulikemetogetthefilmdevelopedforyouatthesto
Accidentsarecaused;theydon’tjust【C1】______.Thereasonmaybe【C2】______
WanttoKnowYourDiseaseRisk?CheckYourExposomeA)Whenitcom
下列因素中,不影响照片影像对比度的是A.管电压 B.被照体的原子序数 C.被
按各类残疾程度分级,属残疾极重度的是()。A.残疾三级 B.残疾二级 C
(2015年)一等三角点测量中,要求日夜观测时段数要符合一定比例,其主要
1.()是社会道德的核心,也是公司员工职业道德的核心。(A)爱国守法(
下列关于征收集体土地的政策规定中,表述正确的是()。A.建设单位征收的集体
某公司经营资产、经营负债与营业收入之间存在着稳定的百分比关系,目前经营资产销售百
最新回复
(
0
)