单词:earth temperature
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Welcome to the Bottom of the World Antarctica is the highest, driest, and coldest place on Earth. It is also the remotest, a fact which accounts for its unspoiled environment. It is difficult for people to get there, and not a comfortable place for p
[00:-1.00]Ever since the beginning of history, [00:-2.00]people have dreamed of interplanetary travel. [00:-3.00]For centuries, [00:-4.00]these dreams have remained dreams.But within about 30 years from now, [00:-5.00]the first people from Earth will
THE PROPERTIES OF WATER Earth is an ocean planet. About three billion years ago, life on our planet began in the deep blue seas. Ninety-nine percent of the living space on earth is in the oceans. Marine life is incredibly rich and varied. There are
[00:04.53]Unit 22 Environmental Protection [00:08.85]Lesson 1 Global Warming [00:12.39]Can we take the heat?In the last few decades, [00:16.95]environmentalists have reported [00:19.02]that human beings are causing changes [00:22.29]in the Earth's cl
[00:00.80]When the atmospheric concertrations [00:03.16]of these gases increase, however, [00:05.84]more heat is trapped and the Earth's [00:07.92]temperature rises. [00:10.37]Over the last 100 years, [00:13.01]the global average temperature [00:15.1
Aqua Technology 水资源监测科技 A new weather-monitoring satellite has been 30 years in the making, and some researchers think it's worth the wait. We'll speak with a scientist about the Aqua satellite -- on today's Earth and Sky. DB: This is Earth a
Ground - Connecting the Earth to electrical equipment with a conductor. This is done so current overloads (perhaps due to a lightning strike) can be safely diverted to the Earth. Ground Fault Circuit
Earth Hour aims to encourage people to be energy-conscious all year, not just for one hour every 365 days. Here are some energy-saving tips we can all do every day. First is turning lights off when they aren't needed. Making use of natural light duri
An Earth-size planet has been spotted orbiting a nearby star at a distance that would makes it not too hot and not too cold - comfortable enough for life to exist, researchers announced September 29. If confirmed, the exoplanet, named Gliese 581g, wo
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Climate change is the great environmental challenge facing the world today, but maybe we should start calling it Climates Change. Because scientists who've
The Properties Of Water Earth is an ocean planet.About three billion years ago,life on our planet began in the deep blue seas.Ninety-nine percent of the living space on earth is in the oceans.Marine life is incredibly rich and varied. There
Temperature 温度 Temperature is how cold and how hot the outside air is. 温度是指外面空气的冷热程度。 It is measured by a thermometer. 可用温度计测量。 Also, people feel temperature with their bodies. 人们的身体也能感受
Mars 火星 Mars is a planet. 火星是行星。 It is next to the Earth. 它紧邻地球。 Its size is about one fourth of the Earth. 它约有四分之一个地球大。 Mars is not far from the Earth, but the environment is very different. 火星离
HOST: Welcome to AMERICAN MOSAIC, in VOA Special English. (MUSIC) I'm Doug Johnson. On our show this week: We answer a question about global warming /P Play music from Paul Simon /P And tell about American Indian tribes in the state of Virginia as t
Two Events Blamed for Dinosaur Deaths Dinosaurs ruled the Earth for about 160 million years. Then they disappeared. Scientists have argued for years about what killed off the dinosaurs. Was it the huge volcanic eruption 66 million years ago in what i
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
Global warming is a real problem, but would you believe that we are actually living in an ice age right now? Yael and Don discuss it. Y: Brrr! Thanks for lunch Don, but it's a little cold to be walking back to the office. D: Well, it is winter. Y: Ac
With all the concerns about global warming and climate change one might ask the question, Why don't species just adapt? Don takes the devil's advocate position and discusses this with Yael. D: Yael, we know global warming is bad, right? I mean, the t
Voice 1 Thank you for joining us for todays Spotlight program. Im Joshua Leo. Voice 2 And Im Rebekah Schipper. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voi
Australian astronomers have discovered the closest potentially habitable planet found outside our solar system so far a super-Earth located just 14 light years away. 澳大利亚的天文学家发现了太阳系外的一个潜在的宜居星球。这颗