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
专升本
Solar energy for your home is coming. It can help you as a single home owner. It can help the whole country as well. Whether or
Solar energy for your home is coming. It can help you as a single home owner. It can help the whole country as well. Whether or
admin
2016-11-13
26
问题
Solar energy for your home is coming. It can help you as a single home owner. It can help the whole country as well. Whether or not solar energy can save your money depends on many things. Where you live is one factor. The type of home you have is another. Things like insulation present energy coasts, and the type of system you buy are added factors.
Using solar energy can help save our precious fuel. As you know, our supplies of oil and gas are very limited. There is just not enough on hand to meet all our future energy needs. And when Mother Nature says that’s all. The only way we can delay hearing those words is by starting to save energy now and by using other sources, like the sun.
We won’t have to worry about the sun’s running out of energy for another several billion years or so. Besides begin an endless source of energy, the use of the sun has other advantages as well. The sun doesn’t offer so many problems as other energy sources. For example, fossil fuel plants add to already high pollution levels. With solar energy, we will still need sources of energy, but we won’t need so much. That means we can cut down on our pollution problems.
With all these good points, why don’t we use more solar power? There are many reasons for this. The biggest reason is money. Until now, it was just not practical for a home owner to put in a solar unit. There were cheaper sources of energy. All that is changing now. Solar costs are starting to equal the costs of oil and electricity. Experts say that gas, oil and electricity prices will continue to rise. The demand for electricity is increasing rapidly. But new power plants will use more gas, oil or coal. Already in some places the supply of electricity is being rationed. Solar energy is now in its infancy. It could soon grow to become a major part of our nation’s energy supply.
The sun is an endless source of energy, it will not run out of it for______.
选项
A、several million years
B、several hundred years
C、several billion years
D、several thousand years
答案
C
解析
文中所说的太阳的寿命是几十亿年。见文章第三段第一句。
转载请注明原文地址:https://kaotiyun.com/show/9SHC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Wouldn’tyouratheryourchild______tobedearly?
TheBritishconstitutionis______alargeextentaproductofthehistoricaleventsdescribedabove.
Mostpeoplewhotravellongdistancescomplainofjetlag.Jetlagmakesbusinesstravelerslessproductiveandmoreprone【C1】____
AdoubtcrossedmymindearlierthisweekwheninterviewingHomelandSecuritySecretaryMichaelChertoffonthepresident’sprop
Itisimportantthattheoffice______yourregistration.
A、Thematterissomewhatimportant.B、Itisamatteroflifeanddeath.C、Youaregettingpeopleintotrouble.D、Youarenotcon
I’llacceptanyjob______Idon’thavetogetupearly.
IsoonrealizedthatIhadenteredanunusualkindofshop.Therewerenogoodsondisplay;therewasnoshopwindow:nothing【C1
Wedon’tneedairconditioning,______.
国庆节要到了,咱们把寝室彻底打扫一下吧。
随机试题
根据《民法通则》的规定,下列选项中,属于无效民事行为的是()。
降压作用缓慢,适用于轻中度高血压,降压同时使心律减慢的药物是
出生20天女婴。皮肤蜡黄色3天、不喜吃奶就诊。经查血常规:Hb50g/L,该患儿属于()
A.硝苯地平渗透泵片B.利培酮口崩片C.利巴韦林胶囊D.注射用紫杉醇脂质体E.水杨酸乳膏属于缓释制剂的是()。
药品安全信息公开应当遵循的原则不包括
作为盖梁模板的支护系统,其立杆底部应有通长的槽钢或厚度不小于50mm的木板且上设有()钢板座垫衬。
【背景资料】某中药制药厂安装工程项目,经过招投标由具备机电安装总承包一级资质的安装公司实施工程总承包。安装工程的主要内容包括常压搅拌桶、内有搪玻璃衬里的高压蒸汽夹套反应釜、2台客货两用电梯以及其他通用设备安装,给水排水及工艺管道安装,通风与空调系
下列关于强调事项段的说法中,正确的有()。
某企业生产甲、乙、丙、丁4种产品,计划年产量各为180、150、20、50台。在车床上加工的工时定额分别为150、120、200和250台时。车床组共有20台车床,两班制生产,设备计划停工率为10%。假设选定甲产品为代表产品,则以甲产品表示的设备组的生产能
《蔷薇园》是13世纪波斯著名诗人()创作的,是其一生经验和智慧的艺术总结。
最新回复
(
0
)