变色温度指示器

I began teaching with the idea of giving back; But I received more than I gave. This brings me to the final movement of this speech. It begins with a story about an extraordinary scientific discovery and a newdilemmathat it poses. Its a call to arms

发表于:2018-12-18 / 阅读(95) / 评论(0) 分类 TED演讲教育篇

Its time for these men to get ready for work, and work means hanging off a cliff at 10,000 feet. High in the Austrian Alps, these men are trying to rescue a historic weather station from the weather itself. It was a couple of years ago, we saw this

发表于:2018-12-30 / 阅读(91) / 评论(0) 分类 国家地理2008年

Scientists: CO2 Levels Will Rise This Year International scientists think the amount of carbon dioxide emissions released into Earths atmosphere will rise by two percent in 2017. The number represents the first increase in worldwide carbon emissions

发表于:2019-01-03 / 阅读(109) / 评论(0) 分类 2017年VOA慢速英语(十一)月

Scientists Warn of Disastrous Global Warming in Near Future The United Nations Intergovernmental Panel on Climate Change (IPCC) is warning that the world is heating faster than predicted. The group says a major slowing of warming is critical to avoid

发表于:2019-01-03 / 阅读(121) / 评论(0) 分类 2018年VOA慢速英语(十)月

The international climate conference in Copenhagen, Denmark enters its second day amid reminders global warming is already underway and calls to come up with a solid, workable deal in the days to come. Sonja Pace | Copenhagen 08 December 2009 Michel

发表于:2019-01-03 / 阅读(117) / 评论(0) 分类 VOA标准英语2009年(十二月)

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? A direct effect on human health related to climate change is the likely increase in infectious diseases transmitted by insects or through contaminated water. In the Marc

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. It's hard to feel a sense of urgency about climate changeit feels so slow. Well, try telling that to the critters dealing with it. Because new data sugge

发表于:2019-01-08 / 阅读(140) / 评论(0) 分类 Scientific American(十二)月

Gas 气体 There are three different kinds of matter. They are solids, liquids and gases. 物质分三种:固体、液体和气体。 Gas has no shape, so you can't touch gas. 气体本无形,所以你触摸不到。 Gas moves very freely. 气体能

发表于:2019-01-10 / 阅读(127) / 评论(0) 分类 与美国小学生一起学英文第5册

AS IT IS 2015-12-01 World Leaders Seek Climate Change Agreement 各国领导人寻求达成气候变化协议 Representatives from more than 150 countries are meeting in Paris to try to reach an agreement on climate change. The world leaders are deba

发表于:2019-01-12 / 阅读(169) / 评论(0) 分类 2015年VOA慢速英语(十二)月

AS IT IS 2015-11-03 More of Us to Go Thirsty As Earth Dries Up Water supplies around the planet are running dry at an alarming rate. Scientists say the world is experiencing a shortage of fresh water. It will only worsen as the population grows and t

发表于:2019-01-12 / 阅读(123) / 评论(0) 分类 2015年VOA慢速英语(十一)月

Study Shows Climate Change Is Affecting Bird Migration 研究表明气候变化影响鸟类迁徙 Recently, a small group of birdwatchers spent three weeks around Mount Vernon, the home of the first president of the United States, George Washington.

发表于:2019-01-12 / 阅读(94) / 评论(0) 分类 2015年VOA慢速英语(一)月

Negotiators at the climate summit in Copenhagen last month failed to agree on a new climate change treaty to replace the current Kyoto Protocol before it expires in 2012. Jonathan Lash is president of World Resources Institute, an environmental polic

发表于:2019-01-13 / 阅读(127) / 评论(0) 分类 VOA标准英语2010年(一月)

The Science of Climate Change Climate negotiators are meeting in Durban, South Africa beginning from November 28-December 9 to discuss the planet's changing climate. The first decade of this century was the hottest on record. Polar ice is melting. Gl

发表于:2019-01-13 / 阅读(119) / 评论(0) 分类 VOA标准英语2011年(十一月)

Join us for another episode of Travelling with Stu-pid as we fool around in Fuzhou, the capital of Fujian province, situated upon the ancient maritime silk trading route. We explore the nooks and crannies that the town has to offer, and steal a price

发表于:2019-01-19 / 阅读(129) / 评论(0) 分类 2017CRI中国国际广播电台

BBC news with David Austin. Russia and Syrian government forces are observing a temporary ceasefire in the Syrian city of Aleppo to allow rebel forces and civilians to leave the besieged districts. The rebels have rejected the pours in the air campai

发表于:2019-01-19 / 阅读(98) / 评论(0) 分类 中英双语新闻

Indonesia has released four detained Chinese cargo ships after they got permission from local maritime authorities. But many others are still being held. The Chinese Embassy in Indonesia has said the detainment of over 20 Chinese cargo ships has alre

发表于:2019-02-02 / 阅读(112) / 评论(0) 分类 CCTV9英语新闻2014年01月

VIENNA, Sept. 22 (Xinhua) -- Climate change and rising temperature in the long term can lead to water shortages in the Alps region, international experts warned Thursday at the Water-Scarce Final Conference in the Austrian eastern city Graz. The Alpi

发表于:2019-02-03 / 阅读(167) / 评论(0) 分类 英语新闻

At the UN climate summit which starts Monday in Paris, governments are expected to adopt a landmark deal to fight climate change and help vulnerable countries deal with rising sea levels, extreme weather events and other effects of global warming. UN

发表于:2019-02-04 / 阅读(99) / 评论(0) 分类 英语新闻

First official draft for a deal at the UN climate conference in Copenhagen says the world should at least halve world greenhouse gas emissions by 2050. The blueprint was released as European leaders pledged over $10 billion to help poor countries cop

发表于:2019-02-06 / 阅读(171) / 评论(0) 分类 VOA标准英语2009年(十二月)

【Transcript】 Less use of air conditioners would be better for us all A strict no-air-conditioning ban was enforced for 87,000 Taiwanese students taking the college entrance examinations this month despite temperatures in many areas reaching 34 to

发表于:2019-02-16 / 阅读(108) / 评论(0) 分类 英语听力广播—Listening
学英语单词
ADACC
additive number theory
agrirecycle
anti-collineation
apparent hardness
Argas
asoyan
authence
auxiliary transformer
Beccarinda
bijectivity
biogeochemical survey
Boncourt
Brieselang
burn oneself
cancellation money
carpenter's auger
cetartiodactyl
column generation method
core deformation
Corydalis sherriffii
cubic nitre
cup sizes
delvers
departments of sociology
derras
directional well survey
disentangle
Dubreuil-Chambardel syndrome
e&m systemwide test
electric service pump
experimental accuracy
female genital organs
fewell
flanneries
Fleischer, Nat
Freund's adjuvant
fuel pump bowl clamp
galathea multilineata
gear shift dust cover
homogeneous alloy
hydropyrolyses
indirectly coupled system
intemperated
j-watson
knife equipped plunger
La Estribera
Lai Thanh
Lemanmanu
mcgruder
mechanical interlock
Meissen
micro-distillation apparatus
moaning Minnies
Moc Chau
nail head bond
Nalgest
natural seedlings
nautical linear unit
not . . . because
novelty theory
open string
outscored
over-lap section
pasture grass
pay for time not worked
pendulum determination
pinedo
plagiomnium maximoviczii
pony dryer
Popa, I.
pseudoestrus
pure wave
rails tie plate
rarefication
regimental landing team
Rolling-stone
rotary autoclave
rubboard
s.g
scat singing
scrippage
sectility
self-bailing cockpit
sheet rolling mill
sick as a horse
single-component plasma
slambanged
Sol IV
sound in life and limb
sow-stang
spectrum of element in normed ring
spreader incline device
stationary source
stderr
swing-seat
temperature surveying
time selection
touch-phones
unsteadfastness
vibratory bowl hopper feeder
xyriss