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
Wind produces from the uneven heating of the atmosphere and irregularities in the earth’s surface. The air movement between thes
Wind produces from the uneven heating of the atmosphere and irregularities in the earth’s surface. The air movement between thes
admin
2012-01-14
90
问题
Wind produces from the uneven heating of the atmosphere and irregularities in the earth’s surface. The air movement between these areas is what we refer to as wind. Just as we can use flowing water to turn turbines, we can harness the power of the wind with wind turbines to create electricity.
Wind turbines have been in use since the 1920s. Their earliest use was to provide electricity in remote areas that didn’t have access to a large utility company. Today here are few areas that are "
off the grid
" but wind power can now be used to supplement traditional power sources.
Wind turbines can be used individually to provide power for a household, or they can be used in arrays to provide electricity on a large scale. These arrays of industrial sized turbines are called "
wind farms
" and are usually situated in areas that receive consistent strong winds. Coastal areas, hilltops, and mountains passes are common areas for wind farms.
Thanks to advances in wind turbine technology we are now able to use the wind as an affordable alternative to fossil fuel for producing power. New technologies make turbines more efficient and modern production techniques bring the cost of turbines down.
When used as a supplement for residential electricity, wind turbines are connected to the breaker box provided by the power company. The power produced is available for immediate consumption, and if the wind turbine produces more electricity than is needed the excess is fed back into the utility grid for a credit on the homeowners power bill.
For those interested in living "off the grid" wind power can be used in conjunction with other alternative energy sources such as solar power. These two methods of producing electricity complement each other, when the sun is strong, the wind may be low, and the wind may be stronger on cloudy days. Also, since solar power is not produced at night, a wind turbine can provide the electricity at this time.
Our site provides more in depth information wind energy and the other sustainable energy sources, how to s and downloadable building plans. (351 words)
What does "off the grid" (Line 3, Para. 2) probably mean?
选项
A、Remote areas.
B、Districts inaccessible to traffic.
C、Areas unable to connect to the utility company.
D、Vast rural areas.
答案
C
解析
off the grid指上面一句中的didn’t have access to a large utility company,即“得不到供电部门供电的地方”。
转载请注明原文地址:https://kaotiyun.com/show/Ia6O777K
0
考博英语
相关试题推荐
Whatisatfaultinourpresentsystemisnottheoutcomebutthefallibleprocedure.
Thelowoperatingcostsoftheforeigncompanywill______thehighlaborcoststhebusinesspaysinitsowncountry.
Heisofteninclinedto______inotherpeople’saffairs,whichisnoneofhisbusiness.
Thebusinesswasforcedtoclosedownforaperiodbutwas______revived.
Themanufacturerwasforcedtoreturnthemoneytotheconsumersunder______oflaw.
Some(research)suggests(what)thereisa(linkbetween)thebody’scalciumbalance(and)toothdecay.
PerhapsthemosttypicallyAmerican(types)offeaturemovie,thewestern,(hasbeen)aresurgence(in)popularity(inrecentye
Superstitionisadifficultquestion.WecannotquitesaythatsuperstitioninBritainisdead.Itshistoryisboth【76】longand
Thegapbetweenthoseatthelowestlevelandthoseatthehighestlevelofincomehadincreased,andiscontinuingtoincrease.
Whichofthefollowingconclusionswouldtheauthorbemostlikelytoagreewitaboutdiscriminationagainstwomenbyprivateem
随机试题
A.髂腰肌B.臀大肌C.股方肌D.缝匠肌E.阔筋膜张肌能协助膝关节旋内的肌
根据我国仲裁法的规定,仲裁委员会自收到仲裁申请书之日起应当作出受理或不受理决定的期限是
关于性轴的描述下列哪项是错误的
关于下丘脑激素的调节,下列哪项是正确的:
以下属于石脑油范围应征收消费税的有()。
在一定大气压下,保持空气的含湿量不变,温度升高,会使空气的相对湿度减小。()
诱导运动是一种视错觉,即观察者知觉到某个物体在运动,而实际上该物体没有发生空间移动,只有由于其他物体的运动使得被观察物体看起来好像在运动。根据上述定义,下列属于诱导运动的是()。
212,207,198,180,171,()。
植入式广告(厦门大学2018年研;暨南大学2018年研;中国传媒大学2010年研)
接入因特网的主机按其在因特网中扮演的角色不同,将其分成两类,即服务器和______。
最新回复
(
0
)