替代方案的决定

This is Scientific Americans' 60-Second Science. Im Steve Mirsky. Got a minute? The search for alternative fuels to gasoline has led to surprising possibilities, for instance, the waste oil for making French fries. But one of the most unusual alterna

发表于:2018-12-24 / 阅读(149) / 评论(0) 分类 Scientific American(一)月

When the wind picks up at the foot of the Rockies, there are those who believe they can hear the future. At the National Renewable Energy Laboratory, making alternative power sources competitive with fossil fuels has been a mission since the energy

发表于:2018-12-30 / 阅读(177) / 评论(0) 分类 国家地理2008年

Potatoes are very important in my life. Actually, theyre more important on my dinner plate. I love potatoes. They are amazing vegetables. I cannot count the number of different ways to cook a potato. Potatoes can be fried, baked, mashed, boiled, saut

发表于:2019-01-06 / 阅读(195) / 评论(0) 分类 纯正英语一分钟

By Katherine Cole Tres Chicas is a rarity on the music charts: A vocal group in which all three singers are frontwomen in their own right. And don't get ready to rumba, because despite their Latin nam

发表于:2019-01-07 / 阅读(196) / 评论(0) 分类 VOA2004(下)--文化艺术

A: Hello, so how are we feeling today? B: Things are going well for me, Dr. Smith. A: Am I correct in thinking that you are here for your annual physical? B: Yes, I am applying for new health insurance, and I need a physical examination to qualify. A

发表于:2019-01-11 / 阅读(191) / 评论(0) 分类 英语情景对话-健康

President Barack Obama says the United States should depend more on so-called clean forms of energy, like wind and solar, and less on oil. The president promoted his alternative energy plan on an Earth Day visit to the central state of Iowa. Preside

发表于:2019-01-13 / 阅读(178) / 评论(0) 分类 VOA标准英语2009年(四月)

听力部分 Dictation: Please prepare your paper and pen. ______ knows ___ and ____ the ________ _______ _______________________ of ______. But ________ people were __________________. Today _________________________that ________________________ is,

发表于:2019-01-14 / 阅读(138) / 评论(0) 分类 王强口语 第二册

今天我们要学的词是borderline。 Borderline, 边缘地带的。美国总统奥巴马检查身体发现,His cholesterol level is borderline high, 他的胆固醇指标介于偏高的边缘。 The snowboarder tried a move that was borderline

发表于:2019-01-16 / 阅读(167) / 评论(0) 分类 英语每日一词

今天我们要学的词是borderline。 Borderline, 边缘地带的。美国总统奥巴马检查身体发现,His cholesterol level is borderline high, 他的胆固醇指标介于偏高的边缘。 The snowboarder tried a move that was borderline

发表于:2019-01-16 / 阅读(140) / 评论(0) 分类 英语单词荟萃

Behaviors like smoking and excessive alcohol consumption also have a very recognizable odor. 像抽烟和过度饮酒这样的行为也会产生一种非常明显的气味。 Regardless of cause, the bad smell almost always originates in the mouth 抛开

发表于:2019-01-17 / 阅读(154) / 评论(0) 分类 TED演讲教育篇

China's energy production relies heavily on coal-fired power stations. As the world's highest emitter of greenhouse gasses, China consumed more than 400 million tones of coal last year. As many parts of China have been shrouded in a gray haze over th

发表于:2019-01-19 / 阅读(162) / 评论(0) 分类 英闻天下

By Jerilyn Watson Broadcast: July 17, 2003 This is Bill White with the VOA Special English Education Report. Some young people in the United States attend 1)alternative schools. These are schools that

发表于:2019-01-20 / 阅读(282) / 评论(0) 分类 VOA2003(下)-教育与新闻

Potatoes are very important in my life. Actually, theyre more important on my dinner plate. I love potatoes. They are amazing vegetables. I cannot count the number of different ways to cook a potato. Potatoes can be fried, baked, mashed, boiled, saut

发表于:2019-01-24 / 阅读(216) / 评论(0) 分类 听一分钟英文-P

By VOA News 01 February 2008 President Bush has declared February American Heart Month to raise awareness of the impact of cardiovascular disease and encourage citizens to take steps to help prevent it. In a presidential proclamation signed Friday,

发表于:2019-02-03 / 阅读(160) / 评论(0) 分类 VOA常速英语2008年(二月)

By Carol Pearson Washington 09 April 2008 Diabetics have a greater than average chance of having a heart attack or stroke. But new research indicates that lowering blood pressure and cholesterol below recommended guidelines seems to reduce these risk

发表于:2019-02-03 / 阅读(160) / 评论(0) 分类 VOA常速英语2008年(四月)

STEVE INSKEEP, HOST: How is it that police officers sometimes shoot the wrong person? That question has grown more urgent after recent police killings of two black men. Emantic Bradford Jr. was killed while running from a shooting at an Alabama mall.

发表于:2019-02-21 / 阅读(196) / 评论(0) 分类 2018年NPR美国国家公共电台12月

lose weight 减肥 If I eat less, I'll lose weight. 少吃点的话,我可以减掉体重的。 You look like you've lost weight lately. 你最近好像瘦了点了。 She's been weak ever since and she's lost weight. 自从那时候开始她就一病

发表于:2019-02-26 / 阅读(249) / 评论(0) 分类 老外最常用的英文短语

台湾籍旅美老师今天交给我们的句子是: Factors like the cancer cell's properties, and the effectiveness of the immune system in eliminating the cancer cells, also play a role in determining the success of metastasis. 影响的因素诸如

发表于:2019-03-04 / 阅读(183) / 评论(0) 分类 留美老师带你每日说英文

走出健康古话有云:笑一笑,十年少。愁一愁,白了头。而走一走,活到九十九。 Everyone dreams to lookslim. Hey, walking is the best way to keep you in shape. Even you can enjoy the fresh air and spend a quality time wit

发表于:2019-03-06 / 阅读(212) / 评论(0) 分类 英语听力广播—Listening

今天我们要学的词是 alternative. Alternative 作为形容词,意思是另外的,可以用于替代的。Stephen Hawking predicts that planet Earth will only survive another 100 years, and it's urgent to consider an alternative planet. 霍金

发表于:2019-03-07 / 阅读(229) / 评论(0) 分类 英语单词荟萃
学英语单词
abrasive coating
alkoxy
amaea iwaotakii
amplitude density spectra
anchor chain diameter
angeles
antezana
Archimedes' screw
aurovertins
autowoak
awardest
backsource
bearded mussel
bite a file
booster cylinder boot
brassin
buoyant lift
car entrance
carltons
cheap rate
chromium plated iron tube
circuit Latour
clay content
clearing away summer-heat and eliminating dampness
clivose
clock-phase diagram
closed-cycle turbine
cognitive component of an attitude
common european ashes
complete system of functions
contour lettering
Copperia
creation of partent's progeny
curtains
Cygwin
delicate adjustment
diarised
Dimethyl-p-toluidine
disintermediator
dogging
drier man
drift-corrected
dry box
ectoangigen
Elaeocarpus grandis
ex-name
fesler
fonts
free electron deusity
get sb.'s number
gowled
grain boundary
greissinger
Herculaneans
hot-water heat-supply system
hyperpax
Impatiens chlorosepala
implumous
in safe hands
jasminelike
Kocher's sign
life-history
MacAuliffe
main assemblage of spring
Mandelbrot
mechanical pulp board
microra
minimum threshold power
Modell number
music of the sphere
neutral flower
neutron sensor
oiltight test
olfactory bud
outer antisubmarine screen
output queue file
paid leave
pantograph collector
Papal States
per year
pizzazz
poppism
preoiling
pulse generation
put oneself in someone's hand
rack-renter
rag content paper
Rowland arrangement reflection grating
side-by-side dual control system
small handwheel
solar magnetic field
space environment engineering
spherical indenter
stood back
subgenome
supersede
surnamed
temperature dependent constant
tripack film
unrouged
uralite
ventral tegmental area