标签：scientist 相关文章
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 this is found in the kinetic
考研背诵50篇
Bobby and his friends have their dreams. 波比和他的朋友们都有自己的梦想。 Bobby wants to be a scientist. 波比希望成为一名科学家。 He should study hard. 他应该更加努力学习。 He will read many books. 他要读很多书
江苏译林版牛津小学英语(3起)六年级下册
By Paul Sisco Washington 31 August 2007 According to the U.S. National Institute of Allergies and Infectious Diseases, most severe food allergic reactions come from nuts, primarily peanuts. And because of that researchers are trying to develop an al
2007年VOA标准英语（八月）
DAVID GREENE, HOST: A Chinese researcher is claiming to have created the world's first genetically edited human babies. According to the scientist, the genes of two twin girls have been modified to resist HIV infection. That's the virus that causes A
2018年NPR美国国家公共电台11月
In southwestern African namely,desert,the lack of rainwater keeps grass sparks.but in some areas,mysterious rain brings grass with bare center appeared thrive. Now scientists sub discovery the so called the very circles are decreased by wearied littl
Scientific American(三)月
赫芬顿邮报:科学家预言,未来不久,人们将能够通过吞药丸来获取知识,一颗药丸下肚,可能就学会了一门外语.有这么简单的方法,那中国的同学们再不用担心英语学习了. 吃药丸学习英语? Huffingt
双语趣听精彩世界
Why Stay in Bed? 早起的虫儿被鸟吃？ Some people are night owls; some are early birds. You probably know which one you are, but did you know that there may be a biological reason why some people are out of bed at dawn while others prefer to b
双语有声阅读
By Zulima Palacio Washington 14 September 2007 University scientists in the United States have taken what they say is an important step in the effort to end malaria. At Johns Hopkins Malaria Research Institute, scholars recently identified a sugar in
2007年VOA标准英语（九月）
What does an 800-pound gorilla eat? If you said: anything it wants, youre not thinking like a scientist. A scientist would say, Let me analyze the isotopic composition of its excreta and Ill get back to you. Because a new study shows that the ratio o
Scientific American(十二)月
By Phil Mercer Sydney 05 October 2007 Australia's main scientific research agency says it has produced the most accurate projections of climate change ever made - and the outlook is not good for Australia. Phil Mercer reports from Sydney, where the g
2007年VOA常速英语（十月）
This is the VOA Special English Education Report. The American biotechnology industry recently did a study of bioscience education across the country. The biosciences are biology and other sciences that deal with living organisms. Paul Hanle is pres
VOA慢速英语2009年（十）月
Scientists have solved the mystery behind the brilliant northern and southern light show known as Aurora Borealis. The phenomenon is caused by electromagnetic energy from the sun, which experts say also wreaks havoc on ground-based power grids and s
VOA标准英语2008年（七月）
By Phil Mercer Sydney 21 May 2008 Australian and U.S. scientists have successfully inserted a gene from the extinct Tasmanian tiger into a mouse embryo. They say the result has been bone and cartilage from the extinct marsupial developing inside the
VOA标准英语2008年（五月）
Dwindling US Space Budget Worries Scientist It's a trend that troubles astrophysicist Neil deGrasse Tyson, an outspoken advocate for space research and exploration. The director of the American Museum of Natural Historys Rose Center for Earth and Spa
VOA标准英语2012年(四月)
Polar Scientist Charts Melting Caused by Climate Change Michael Gooseff follows water to the end of the earth. The Pennsylvania State University hydrologist works in remote regions of the Arctic and Antarctic, where ice and frozen ground are thawing.
VOA标准英语2011年(八月)
ROBERT SIEGEL, HOST: This week, we've been reporting on the intersection of music and neuroscience. And today we are joined by music and science personified. Renee Fleming is one of the great sopranos of our time, and she's also artistic adviser at l
2017年NPR美国国家公共电台6月
By Mike O'Sullivan Los Angeles 04 September 2007 Humans could get to Mars in less than 10 years, if they put their minds to it. That is the message of the Mars Society, a group of scientists and space enthusiasts who met recently in Los Angeles. VOA'
2007年VOA标准英语（九月）
By Paul Sisco Washington 09 April 2008 Leatherback turtles fascinate ocean researchers. The largest of sea turtles roams the world's oceans, nesting and feeding in coastal regions. Scientists say leathernecks have been doing so for at least 65 millio
VOA常速英语2008年（四月）
By Paul Sisco Washington 09 January 2008 Recent satellite data from the U.S. Space agency NASA indicate that sea ice in the Arctic and Greenland is melting at a faster rate than previously projected. VOA's Paul Sisco has the story. Climate scientists
VOA标准英语2008年（一月）
讲解 Todays key word is Scientist Scientist 科学家 Scientist is a person who is trained in a science and whose job involves doing scientific research or solving scientific problems. Lets learn the word in sentences: William spent his childhood d
英语悠选脱口秀