标签：Genetically 相关文章
Hi, I'm Carl Azuz. I'm 62, I have dark hair and brown eyes. No why, genes, this a little piece of code that determining the characteristicsof living things and all living things have them. But genes can be changed, they can be modified, that's how yo
CNN2013年(六)月
Early farming began in the Near East about 10500 years ago. Farming first reached Balkans in Europe some 8 to 9 thousand years ago and then crept westward. Locals in Britain seperated from mainland by the relatively newly formed English Channal did n
2015年Scientific American(二)月
The survival strategies of some species can seem counter-intuitive to us until we examine them in detail. Let's take the example of bees, which die after stinging once, because the stinger tears out their insides. How can this self-destructive trait
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About six or seven million years ago chimpanzees and humans evolved from a common primate ancestor. Chimps went on to become the relatively small-brained, forest dwelling creatures we know and love. Humans went on to evolve large brains, spread throu
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V. Lets Talk Script Correspondent: In the U.S. what percentage of people support biotech crops? And do those who support biotech crops also eat biotech foods? What percentage of food on the market has genetically modified ingredients? Professor: U.S.
新视野大学英语：视听说教程 4
IV. Speaking Out MODEL 1 Why are people protesting against genetically modified foods? Susan: With so many people suffering from malnutrition around the world, why are people protesting against genetically modified foods? Chris: Some people are prote
新视野大学英语：视听说教程 4
The plains zebra is a close relative of the quagga, extinct since 1883. But according to members of the Quagga Project in Cape Town, South Africa. The foal seen running with its herd of plains zebras is a quagga. His name's Harley and he was born in
国家地理2008年
Plant of the Apes 决战猩球 Fans of the original are ready to go ape over this summer's movie offering from Fox. Tim Burton's Planet of the Apes is said to be neither a remake of the 1968 classic of the same name nor a sequel to the series. Rather
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AGRICULTURE REPORT - Calls for a 'Gene Revolution' By Mario Ritter Broadcast: Tuesday, June 01, 2004 This is Steve Ember with the VOA Special English Agriculture Report. There are sixty-eight million
农业与发展
HEALTH REPORT - Polio Threatens Africa By Cynthia Kirk Broadcast: Wednesday, June 30, 2004 This is the VOA Special English Health Report. Health officials say the spread of polio from Nigeria into ten
健康与经济
DEVELOPMENT REPORT – August 19, 2002: Malaria Organism By Jill Moss This is the VOA Special English Development Report. Researchers in the United States have discovered that the organism that causes
农业与发展
Grafting is a way to produce plants from pieces of existing plants instead of seeds. Branches or buds are cut from one plant and placed on a related kind of plant. The branch or bud that is grafted is called the scion. The plant that accepts the graf
2010年VOA慢速英语(五)月
This is the VOA Special English Agriculture Report. Farmers know that if you reduce harmful insects and diseases in your crops, you have a chance for a better harvest. Today, many farmers and experts praise Integrated Pest Management, or IPM. IPM is
2010年VOA慢速英语(十一)月
The drug Taxol is a powerful weapon in the fight against cancer, but it's very expensive and complicated to manufacture. Now, scientists at Tufts University and the Massachusetts Institute of Technology (MIT) say they've taken the first steps to make
VOA标准英语2010年(十)月
'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the
VOA标准英语2011年(八月)
From NPR News in Washington, I'm Lakshmi Singh.A Philadelphia abortion doctor faces the death penalty after he was convicted today a first degree murder accused of killing three babies, shortly after they were born. NPR's Jeff Brady reports on the ju
2013年NPR美国国家公共电台5月
From NPR News in Washington, I'm Barbara Klein. The Senate Budget Committee is considering a Democratic plan for the next fiscal year. As NPR's Craig Windham reports it includes $1 trillion in spending cuts and an equal amount of new revenue from clo
2013年NPR美国国家公共电台3月
This is Scientific American 60-second science. I am Sophie Bushwick. Got a minute. Jet lag. Jumping a few time zones causes problems with sleep even digestion. but new research means we could step closer to preventing this voigers vexation. The study
Scientific American(十)月
Todd: Hey, Akane, I was reading in the paper that China is doing research on genetically modified foods and is considering it. The United States is for using genetically modified foods, (I see) but Europe is against it. (Oh, right) So you're from Can
英语访谈对话
As we recover from the holiday weekend, theres some intoxicating news on curbing the effects of alcohol. In the May 29th issue of Cell, scientists report discovering a gene that controls fruit flies sensitivity to ethanol. And if that just sounds li
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