时间:2018-12-16 作者:英语课 分类:2007年VOA标准英语(三月)


英语课
By Brian Wagner
Miami
30 March 2007
 

President Bush has set ambitious goals to reduce the country's dependence 1 on oil, and increase the use of alternative fuels like ethanol. VOA's Brian Wagner reports from Miami that experts are now at work to ensure there will be enough new supplies of ethanol to meet the demand.


A recent deal between the United States and Brazil to share ethanol technology marked a key step to expand the American market for alternative fuels. Brazil has built a strong local market for ethanol based on local sugar production, and U.S. officials are hoping to learn some lessons from its success.






U.S. ethanol is made from corn


U.S. ethanol is made from corn



Most U.S. ethanol is made from corn. And expanding ethanol production is crucial to President Bush's goal of reducing gasoline consumption in the country by 20 percent over the next 10 years.


"The president's goal has begun to shake up the energy sector 2," says Brian Dean, head of the Interamerican Ethanol Commission. "That's not just ambitious, it's audacious. We're going to start seeing policy initiatives immediately, I think. And with those policies, consideration needs to be given to our ability to create enough products to meet these very ambitious objectives of 35 billion (gallons). The United States only produced a little over five billion gallons last year, it consumed close to six billion. We're talking about a five-fold increase."


The United States is already looking for additional partners in Latin America to expand the ethanol sector. However, current U.S. policies restrict imports of ethanol and crops from the region, mainly because of pressure by U.S. farmers concerned about losing market share.


Dean says the supply of ethanol from corn and other domestic farm crops will not be enough to meet the Mr. Bush's goals. "But clearly, corn alone, sugar cane 3 alone, or any single feedstock that is agricultural is not going to be able to satisfy the market," he notes. "Clearly the future of ethanol lies in a holistic 4 approach that contemplates 5 agricultural sources, but also the cellulosic technologies. There needs to be an expansive view of ethanol."


Cellulosic ethanol is derived 6 from biomass or plant waste, such as bagasse from sugar cane. Experts are still working to improve the process. But within a few years, it could expand the market place for fuels, says George Philippidis, associate director of the Applied 7 Resarch Center at Florida International University.


"Where depending on what kind of raw material you have in each part of the country or the world, the [processing] plant will feed on that,"  he explains. " For instance, south Florida is very rich in bagasse [sugarcane waste]. Central Florida has a lot of citrus peel."


Philippidis says the technology to make ethanol from such waste products is still a few years away. But he says it will be needed to reduce demand for corn, sugar, and other farm products. Already, the rising interest in ethanol has been blamed for a jump in prices for corn tortillas in Mexico.


Philippidis says we can expect to see more market fluctuations 8.


"The free market operates that way. We're going to see the ups and downs until we have a demand and supply that are in sync. But that doesn't scare me, it doesn't concern me. That's a natural cycle that the market is going to go through," he says.


Experts say the move away from an oil-based energy market will help reduce pollution and increase energy security. But, as long as demand for ethanol remains 9 high, consumers should expect not to see much savings 10 at the gas pump.




1 dependence
n.依靠,依赖;信任,信赖;隶属
  • Doctors keep trying to break her dependence of the drug.医生们尽力使她戒除毒瘾。
  • He was freed from financial dependence on his parents.他在经济上摆脱了对父母的依赖。
2 sector
n.部门,部分;防御地段,防区;扇形
  • The export sector will aid the economic recovery. 出口产业将促进经济复苏。
  • The enemy have attacked the British sector.敌人已进攻英国防区。
3 cane
n.手杖,细长的茎,藤条;v.以杖击,以藤编制的
  • This sugar cane is quite a sweet and juicy.这甘蔗既甜又多汁。
  • English schoolmasters used to cane the boys as a punishment.英国小学老师过去常用教鞭打男学生作为惩罚。
4 holistic
adj.从整体着眼的,全面的
  • There is a fundamental ambiguity in the use of word "whole" in recent holistic literature.在近代的整体主义著作中,“整体”这个词的用法极其含混。
  • In so far as historicism is technological,its approach is not piecemeal,but "holistic".仅就历史决定论是一种技术而论,它的方法不是渐进的,而是“整体主义的”。
5 contemplates
深思,细想,仔细考虑( contemplate的第三人称单数 ); 注视,凝视; 考虑接受(发生某事的可能性); 深思熟虑,沉思,苦思冥想
  • She contemplates leaving for the sake of the kids. 她考虑为了孩子而离开。
  • Beauty in things exists in the mind which contemplates them. 事物的美存在于细心观察它的人的头脑中。
6 derived
vi.起源;由来;衍生;导出v.得到( derive的过去式和过去分词 );(从…中)得到获得;源于;(从…中)提取
  • Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
  • He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》
7 applied
adj.应用的;v.应用,适用
  • She plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
8 fluctuations
波动,涨落,起伏( fluctuation的名词复数 )
  • He showed the price fluctuations in a statistical table. 他用统计表显示价格的波动。
  • There were so many unpredictable fluctuations on the Stock Exchange. 股票市场瞬息万变。
9 remains
n.剩余物,残留物;遗体,遗迹
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
10 savings
n.存款,储蓄
  • I can't afford the vacation,for it would eat up my savings.我度不起假,那样会把我的积蓄用光的。
  • By this time he had used up all his savings.到这时,他的存款已全部用完。
学英语单词
abadi
abnormalizing
Adabaī Mahamoud
Adonias
aided laying
Air Pressure Relief Valve
allantoises
aneitensis
annul-
arachnopia
ball viscosimeter
basic assember program
behavioral relationship
belly-achings
bristlecone
cakepans
canvass for contribution
Capromycinum
caroticotympanic nerves
central angles
Cheggers
cocosoid
connecting screw rod
convertible currencies
cubiclizes
Cuenca
deficit reactivity
Diamond Jim Brady
dicapryloyl peroxide
distributed delay model
driven rod
Einhorn's disease
enzymoprivic
Eoligonodina
Erigeron L.
feed on animal's blood
fresh in someone's mind
fruit diameter index
galdosian
Gamtoos R.
greatest common factor
Hirst's phenomenon
homo soloenses
hook stud
hydrocephalies
increment mode display
inculpably
isolated operation
jamuna
jup
Kabara, L.
Korsakov's psychosis
L. C. L. bodizs
Lake of the Woods
laser pressure gauge
leze-majesty
liquid composite molding (lcm)
lithodes formosae
madrepore marble
magnetic bearing
make our point
manufacture out of whole cloth
megamera
mulcher stubble
net explosive weight
non-b
nondessert
northwest corner rule
onion-domed
ornitholeucism
Paloxin
Pearson's coefficient of meansquare contingency
phase-iii
pig-metal
pigginstring
preaching to the choir
PSAD
pyrola americanas
radial force
refrigerator cryopump
revolves around
saccharogalactorrhea
sadsack
sapo glycerinatus
sarc-
sheddest
shovel-crowding engine
shovelnose-ray
single-cycle forced-circulation boiling water
slot part
snow-jobbed
spankiest
Strongylus apri
super orthogonal code
tertiates
thass
thermobank defrost
tracies
trise
video-fax
wet shoots
Yangdi