This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Beauty is only skin deep. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shiel

发表于:2018-12-02 / 阅读(107) / 评论(0) 分类 Scientific American(十二)月

THE AGES OF MAN Human achievements come in all shapes and sizes. Knocking two rocks together can be just as important as sending a man to the moon. When ancient humans learnt to use stone tools and make fire, it meant the beginning of modern society

发表于:2018-12-04 / 阅读(45) / 评论(0) 分类 人教高中英语高二

This is Scientific American's 60-Second Science. I am Karen Hopkin. This'll just take a minute. As you probably know, viruses can jump from animals to people, we've gotten flu from birds and pigs, and HIV, the virus that causes AIDS, is thought to ha

发表于:2018-12-24 / 阅读(68) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? It took until about 1800 or 1825 to put the first billion people on the planet. We added the most recent billion in 12 or 13 years. We anticipate two billion more by 205

发表于:2018-12-24 / 阅读(53) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans 60-second science, Im Sophie Bushwick. Got a minute? To vocalize, animals create sound waves in the pipeline vocal checks. Shorter pipes produce higher frequency sounds, so smallest animals like the cuddly koala should ha

发表于:2018-12-24 / 阅读(81) / 评论(0) 分类 Scientific American(九)月

This is Scientific American, 60-second science. I'm Evelyn Lamb. Got a minute? That is Generation Zero of DarwinTunes. It is a website researchers are using to study how listener preferences affect the evolution of music. A new study claims that the

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 Scientific American(六)月

This is Scientific American 60 second Science, I am Sophie Bushwick, got a minute? Does your puppy turn his nose up at his own chowbecause he wants some of whatever it is that youre having? A new study finds that, when it comes to food, dogs recogniz

发表于:2018-12-24 / 阅读(64) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60 Second Science, I am Sophie Bushwick, got a minute. Kindles, Nooks and other e-readers catch flack for threatening the future of printed books. But reading itself may get a boost from the devices. For example, a study

发表于:2018-12-24 / 阅读(90) / 评论(0) 分类 Scientific American(三)月

This is Scientific Americans Sixty-Second-Science. I'm Karen Hopkin. This'll just take a minute. Social networking is all the rage. Seems the more people we know, the better we feel. But that drive for being connected may enrich more than our social

发表于:2018-12-24 / 阅读(50) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. The racks leading up to the checkout line are prime real estate for impulse buys. Merchandise near the register moves, whether it's a magazine, a pack of

发表于:2018-12-24 / 阅读(47) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Generally speaking, kids do like their candy. Now scientists say that this sweet tooth may have some basis in biology. Because sugars may help fuel the r

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 Scientific American(三)月

The results are in, and, Americans pretty much like science. Eighty-four percent of those polled think that sciences effect on society is mostly positive. Thats the result of two phone surveys conducted by the Pew Research Center and the American As

发表于:2019-01-30 / 阅读(105) / 评论(0) 分类 60秒科学

SCIENCE IN THE NEWS - Pressure Rises on Scientific Publishers to Offer 'Open Access' / 2,400-Year-Old Gold Mask Found in Bulg... By Broadcast: Tuesday, August 31, 2004 (MUSIC) VOICE ONE: This is SCIEN

发表于:2019-01-30 / 阅读(123) / 评论(0) 分类 科技之光

Science and technology 科学技术 Scientific publishing 科技出版业 Brought to book 好书来了 Academic journals face a radical shake-up 学术期刊面临彻底改变 IF THERE is any endeavour whose fruits should be freely available, that en

发表于:2019-02-05 / 阅读(80) / 评论(0) 分类 经济学人科技系列

1. 消除愚昧 eliminate ignorance 2. 扫除文盲 eliminate (wipe out) illiteracy 3. 营造良好的文化环境 create a healthy cultural environment 4. 促进文化市场健康发展 facilitate the sound development of the markets for cultural pr

发表于:2019-02-09 / 阅读(61) / 评论(0) 分类 英语笔译

Secretary-Generals Message for International Mother Language Day秘书长国际母语日致辞21 February 2014 2014年2月21日 International Mother Language Day celebrates linguistic and cultural diversity alongside multilingualism as a force for pe

发表于:2019-02-09 / 阅读(78) / 评论(0) 分类 英语笔译

Directions: For this part you are allowed 30 minutes to write a composition on the topic My Favorite Novel. You should write at least 120 words and base your composition on the outline below: 1、我最喜爱的小说,2、该小说的内容,3、我

发表于:2019-02-09 / 阅读(109) / 评论(0) 分类 英语四级作文范文

how to make a joyful day and how to get a smiley face on bring your little love all the sadness blow away stay with me everyday next to me everyway my heart is with you day by day love, on all the way.

发表于:2019-02-11 / 阅读(62) / 评论(0) 分类 金属

Doctoral students are often stereotyped as dull bookworms in thick glasses. But recently, a series of online mini-dramas depicting the daily life of PhDs changed peoples mind. 博士生往往被说成是架着厚厚眼镜片的木讷书呆子。但最近

发表于:2019-02-14 / 阅读(50) / 评论(0) 分类 中英双语新闻

Choosing An Occupation Hodeslea, Eastbourne, November 5, 1892 Dear Sir, I am very sorry that the pressure of other occupations has prevented me from sending an earlier reply to your letter. In my opinion a man's first duty is to find a way(1) of supp

发表于:2019-02-25 / 阅读(50) / 评论(0) 分类 双语有声阅读