单词：scientific problem
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BOB DOUGHTY: And Im Bob Doughty. Many boys and girls like science. Some of them go to the Internet to find answers to scientific questions. Today, we will tell about a few science websites for children. (MUSIC) FAITH LAPIDUS: Millions of children aro
2010年VOA慢速英语(十二)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. In America theres a feeling of Christmas. But thats not the only winter holiday going on. Jews are lighting Hanukkah candles, Muslims recently feasted
Scientific American(十二)月
[00:04.49]Scientific Attitudes [00:06.97]科学的态度 [00:09.46]Science had its beginning when man started asking questionsabout his environment. [00:14.18]科学起源于人类开始对自身环境产生疑问的时候. [00:18.91]He wondered where the sun went at night an
大学英语自学教程上
27. Scientific Theories In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of thi
新概念优美背诵短文50篇
LESSoN TEN TEXT A Scientific Attitudes Science had its beginning when man started asking questions about his environment. He wondered where the sun went at night and why the sky was blue. He questione
自考英语（一）78讲
In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produc
新东方背诵文选
Chinese President Xi Jinping has issued a new call for a greater focus on scientific innovation, saying it should be the driving force for China's development. Xi Jinping's comments have been made during a stop at the Chinese Academy of Sciences. He
世界各地新闻集锦
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Scientists can now include online gaming in their problem-solving arsenal. Because game players seem to have provided an answer to a scientific questio
Scientific American(九)月
This is Scientific Ameicans 60-Second Science. Im Steve Mirsky. Got a minute? Would you mind telling me what this is all about, Mister? No problem, Captain. A study in the Journal of Applied Physiology shows that artificial gravity should prevent a b
Scientific American(七)月
Charles is a lonely young man and Amy is a crippled girl on a wheelchair. They meet, get to know each other and begin going out together. Charles falls in love with Amy and hopes to be the only chairpusher in her life. But Amy prefers independence t
英语散文阅读
10 THE IMPORTANCE OF SCIENTIFIC EXPERIMENTS THE IMPORTANCE OF SCIENTIFIC EXPERIMENTS The rise of modern science may perhaps be considered to date as far back as the time of Roger Bacon, the wonderful monk and philosopher of Oxford, who lived between
英语背诵文选第一册
This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of
Scientific American(八)月
This is scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Would America be a better place if more people with science training held elective office? One organization that thinks so is Scientists and Engineers for America, or SEA.
Scientific American(五)月
This is Scientific American's 60-Second Science. I am Karen Hopkin, this'll just take a minute. For years, advocates have touted the use of biofuels as a clean burning alternative to gasoline, now a pair of studies published in the Feb 8 issue of Sci
Scientific American(二)月
This is Scientific Americans 60-SecondScience. Im Steve Mirsky. Got a minute? The traveling salesman problem is afavorite math conundrum: if a salesman has to visit a bunch of cities, how doyou get him to all of them once via the shortest possible ro
Scientific American(八)月
GUY RAZ, HOST: It's the TED Radio Hour from NPR. I'm Guy Raz. And on the show today, ideas about truth, lies and denial. I want to start by asking about this word denialism. What is it - what's your definition of it? MICHAEL SPECTER: Denialism is som
2017年NPR美国国家公共电台6月
今天我们要学的词是the Pill。 大家都知道，pill是药片的意思，但是今天我们学习的the Pill, 第一个字母P大写，专门用来指避孕药。 The Pill turned 50 on May 9th, 五月九号是避孕药诞生五十周年。 T
英语每日一词
One day in the Garden of Eden, Eve calls out to God, Lord, I have a problem!What's the problem, Eve?Lord, I know you've created me and have provided this beautiful garden and all of these wonderful animals, and that hilarious comedy snake, but I'm ju
趣味英语
今天我们要学的词是the Pill。 大家都知道，pill是药片的意思，但是今天我们学习的the Pill, 第一个字母P大写，专门用来指避孕药。 The Pill turned 50 on May 9th, 五月九号是避孕药诞生五十周年。 T
英语单词荟萃
第一、More than+名词表示多于、非但尤其是如： 1) Modern science is more than a large amount of information. 2) Jason is more than a lecturer; he is a writer， too. 第二， More than+数词含以上或不止之意，如： 3) I have
托福英语