首页
登录
职称英语
共用题干 第三篇Renewable Energy SourcesToday p
共用题干 第三篇Renewable Energy SourcesToday p
考试题库
2022-08-02
9
问题
共用题干第三篇
Renewable Energy Sources
Today petroleum(石油)provides around 40% of the world's energy needs , mostly
fuelling automobiles.Coal is still used,mostly in power stations,to cover one一quarter of
our energy needs,but it is the least efficient,unhealthiest and most environmentally
damaging fossil fuel(矿物燃料).Natural gas reserves could fill some of the gap from oil,
but reserves of that will not last into the 22nd century either. Most experts predict we will
exhaust easily accessible reserves within 50 years.Less-polluting renewable energy
sources offer a more practical long-term energy solution. "Renewable"refers to the fact t
hat these resources are not used faster than they can be replaced.
Hydroelectric(水力发电的)power is now the most common form of renewable energy,
supplying around 20%of world electricity.China's Three Gorges Dam is the largest ever.
At five times the size of the US's Hoover Dam , its 26 turbines(涡轮机)will generate the
equivalent energy of 18 coal-fired power stations.It will satisfy 3% of China's entire electricity demand.
In 2003, the first commercial power station to use tidal(潮汐的)currents in the open
sea opened in Norway. It is designed like windmill(风车),but others take the form of
turbines.
As prices fall,wind power has become the fastest growing type of electricity generation一
quadrupling(翻两番)worldwide between 1999 and 2005. Modern wind farms consist of
turbines that generate electricity.Though it will be more expensive,there is more than
enough wind to provide the world's entire energy needs.Wind farms come in onshore and
offshore forms.They can often end up at spots of natural beauty,and are often unpopular
with residents.And turbines are not totally harmless一they can intertere with radar,alter
climate and kill sea birds.Scotland is building Europe's largest wind farm,which will power
200,000 homes.The UK's goal is to generate one-fifth of power from renewable sources,
mainly wind,by 2020.But this may cause problems,because wind is unreliable.According to the passage,resources like wind areA:renewable. B:recyclable.C:damaging. D:scarce.
选项
According to the passage,resources like wind are
A:renewable.
B:recyclable.
C:damaging.
D:scarce.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/1493498.html
本试题收录于:
理工C题库理工类分类
理工C
理工类
相关试题推荐
共用题干 第一篇ASocietyWithoutaFormalAuth
共用题干 Earthquake1.Everyyearearthquakes
共用题干 Earthquake1.Everyyearearthquakes
共用题干 Earthquake1.Everyyearearthquakes
共用题干 CreatingaWorldwithoutSmokingSm
共用题干 CreatingaWorldwithoutSmokingSm
共用题干 CreatingaWorldwithoutSmokingSm
共用题干 CreatingaWorldwithoutSmokingSm
共用题干 Animal's"SixthSense"Atsunamiwa
共用题干 Animal's"SixthSense"Atsunamiwa
随机试题
Ourcompanydecidedto______thecontractbecauseanumberoftheconditionsin
Summer’sunofficialendclosedoutadarkseasonforworkingteenagers.
A.逻辑联想、思维灵活性训练 B.分析和综合能力训练 C.理解和表达能力训练
下列各项中,属于所有者权益特征的有()。A.除非发生减资、清算或分派现金股利,
“巴罗提节”是哈萨克族的节日。( )
患者,男性,14岁。上课时突然手中钢笔掉在地上,双眼向前瞪视,呼之不应,持续数秒
下列各项中,反映公司偿债能力的财务比率指标有()。 ?Ⅰ.流动资产/流动负债
以下关于道德与法律的联系的说法错误的是( )。A.目的一致。道德和法律都是行为规
小儿感冒后易出现A.大便秘结 B.口有异味 C.面色萎黄 D.舌苔厚腻
(2015年真题)某企业计划建设一个年产1万吨乙醇的项目,该项目安全设施设计完成
最新回复
(
0
)