In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(98) / 评论(0) 分类 Scientific American(十二)月

A: 欢迎大家来到这期的美语训练班! 我是杨琳! B: 我是Mike! 杨琳,来告诉大家今天都要学什么? A: 没问题! 今天,咱们要来去体验一下刺激的赛车比赛,聊聊继续深造学习,还要告诉你怎么说飞速

发表于:2018-12-25 / 阅读(54) / 评论(0) 分类 美语训练班

The dangers of global warming are well known. It is good to have a day that makes us think about the harm the Suns rays can do to our skin. This day is Stay Out Of The Sun Day. It takes place around the 3rd of July every year. No one really knows how

发表于:2018-12-29 / 阅读(58) / 评论(0) 分类 英语课程学习计划和讲义

And beyond that, on behalf of your mother and sisters, I pledge that we, your blood family, will do all we can to continue the imaginative and loving way in which you were steerling these two exceptional young men so that their souls are not simply i

发表于:2018-12-30 / 阅读(61) / 评论(0) 分类 名人励志英语演讲

Sunscreened Plants 遮光植物 A NASA researcher is finding that alfalfa plants grow more poorly when exposed to UVB -- ultraviolet B radiation from the sun. Learn more about sunscreened plants -- today on Earth and Sky. JB: This is Earth and Sky. Eart

发表于:2019-01-02 / 阅读(153) / 评论(0) 分类 (科普英语)Earth and Sky

12岁女孩在联合国的演讲 Hello, I'm Severn Suzuki speaking for E.C.O. - The Environmental Children's Organisation. 大家好,我是Severn Suzuki,我代表儿童环境组织来此演讲。 We are a group of twelve and thirteen-year-olds fr

发表于:2019-01-08 / 阅读(167) / 评论(0) 分类 英语演讲

The Ozone Layer 臭氧层 Can humans live away from the Earth? 人类能远离地球生活吗? Maybe it will be possible in the future but it is impossible now. 或许将来可以,但现在不行。 In our solar system, the Earth is probably the

发表于:2019-01-10 / 阅读(73) / 评论(0) 分类 与美国小学生一起学英文第10册

[00:-1.00]carbon monoxide motorway roadwork limit [00:-1.50]一氧化碳 汽车高速公路 长跑运动训练 界限 [00:-2.00]speed limit cone traffic cone zebra crossing [00:-2.50]速度限制 锥形物 锥形交通 斑马线 [00:-3.00]addiction c

发表于:2019-01-10 / 阅读(146) / 评论(0) 分类 高中英语北京必修模块

9 Environmental matters 9 环境问题 Some useful phrases. 有用表达。 Listen to the recording and repeat. 听录音,跟读。 Plastics aren't bio-degradable. 塑料制品不能生物降解。 They don't break down easily in the environment. 它

发表于:2019-01-14 / 阅读(59) / 评论(0) 分类 职业技术英语口语

12岁的铃木瑟玟(Severn Suzuki)在1992年里约世界高峰会上,对全世界环境部长发出警语,她的演说简单扼要却直指人心,要求「大人们」对于环保要说到做到,否则就是对下一代的不负责任。

发表于:2019-01-18 / 阅读(154) / 评论(0) 分类 英语演讲

Brazil's National Institute of Amazonian Research and Germany's Max Planck Institute have joined efforts to build the Amazon Tall Tower Observatory (ATTO). Located along the waterways of a northern tributary of the Amazon River, the observatory was f

发表于:2019-02-02 / 阅读(64) / 评论(0) 分类 英语新闻

Ozone layer(臭氧层) 'is no longer disappearing and will return to full strength by 2048', says UN report. The ozone layer is no longer disappearing and could be back to full strength by the middle of this century, UN scientists have confirmed(

发表于:2019-02-07 / 阅读(63) / 评论(0) 分类 英语新闻

There is nothing unusual about energy like coals and oils being consumed, principally because economic development depends on natural resources all the time. But what is happening today is extraordinary judged by the standards of the past. It is ener

发表于:2019-02-12 / 阅读(106) / 评论(0) 分类 雅思英语

Good afternoon! Im Naamua Delaney at the CNN Center in Atlanta. Heres a look at whats happening NOW IN THE NEWS. The governments ability to eavesdrop on phone calls and emails of suspected terrorists is at the center of a showdown today. The House c

发表于:2019-02-16 / 阅读(80) / 评论(0) 分类 商业报道2008年(三)月

Buoyed by the success of leaded gasoline, Midgley now turned to another technological problem of the age. Refrigerators in the 1920s were often appallingly risky because they used dangerous gases that sometimes leaked. One leak from a refrigerator at

发表于:2019-02-17 / 阅读(57) / 评论(0) 分类 万物简史

BEIJING, Dec. 14 (Xinhua) -- Construction is to be suspended and use of official vehicles limited in cases where Beijing air quality plummets to extremely bad, under a new rule on curbing air pollution. The rule, to be enacted on Jan. 1, 2013, catego

发表于:2019-02-18 / 阅读(61) / 评论(0) 分类 英语新闻

Why do some governments persist in spending billionsof dollars on space exploration when starvation and poverty continue to gripmany countries throughout the world ? This particular question is being raisedby an ever increasing number of people 。 既

发表于:2019-02-19 / 阅读(51) / 评论(0) 分类 托福英语

很多参加gre的考生在做gre写作的时候都没有写提纲的习惯,这是非常不好的。提纲在gre写作当中起到了至关重要的作用。从今天起,我们将对gre issue进行分析,弄清写作思路,这样才能让gre

发表于:2019-02-19 / 阅读(91) / 评论(0) 分类 GRE作文

Nowadays, we have many conveniences in our society which have been brought about through technology and science. However, these same advancements in technology and science have caused some very dangerous problems. These problems will not go away easi

发表于:2019-02-26 / 阅读(86) / 评论(0) 分类 雅思英语

31. There has been undesirable trend in recent years towards the worship of money . A recent survey showed that X percent of respondents ranked getting rich as their top priority , compared to X percent only a few years ago . Why do people fail to re

发表于:2019-03-03 / 阅读(160) / 评论(0) 分类 实用英语