昼夜温度变化

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(47) / 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(51) / 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(63) / 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(60) / 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(71) / 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(85) / 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(89) / 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(68) / 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(110) / 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(66) / 评论(0) 分类 2015年VOA慢速英语(十一)月

Many Unknowns about Future Climate Change Effects Scientists say many of the long-term effects of rising temperatures are still unknown. Theyre discussing the problem at the U.N. climate change conference in Durban, South Africa. Researchers say clim

发表于:2019-01-13 / 阅读(76) / 评论(0) 分类 VOA标准英语2011年(十二月)

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(75) / 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(78) / 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(54) / 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(74) / 评论(0) 分类 CCTV9英语新闻2014年01月

A new study suggests morning people are born, not made. 一项新的研究表明,早睡早起是与生俱来的特质,不是后天养成的。 Here's some good news for all you night owls desperately trying to get better at mornings - new researc

发表于:2019-02-02 / 阅读(88) / 评论(0) 分类 阅读空间

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(93) / 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(51) / 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(126) / 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(63) / 评论(0) 分类 英语听力广播—Listening