标签：Genes 相关文章
AS IT IS 2015-11-30 Freedom Threatens New York's White Deer 开放陆军仓库或威胁到纽约白鹿 In the 1940s, the U.S. Army fenced 40 kilometers of wilderness in Central New York and turned it into a weapons depot. By chance, the fencing enclo
2015年VOA慢速英语(十二)月
Anyone who has vacationed in the higher elevations of Colorado, such as Vail and Estes Park, will tell you altitude sickness can be a real problem. Loss of appetite, nausea, vomiting, weakness, dizziness, and difficulty sleeping can plague those visi
2018年NPR美国国家公共电台2月
Making Stem Cells From Ordinary Adult Cells Most cells in our bodies are unipotent, that is they stay the same throughout their lives. For example, once a skin cell, always a skin cellthey never start turning into brain cells. The exception is stem c
英语时差8，16
Evolving Toward Cancer Is it possible that humans evolved to get cancer? Thats what scientists at Ben Gurion University in Israel claim in a study. They found that the same genetic mutations involved in the evolution of modern humans also gave rise t
英语时差8，16
Fruit Fly Learning You might think those pesky little fruit flies gathering around your fresh produce every summer are too stupid to know a banana from a pear. Theyre barely large enough to see. They certainly cant have that much brain power, can the
英语时差8，16
Its no secret that dark foods with purple pigment, such as purple onions, grapes, blueberries, and prunes are loaded with nutrients. They have been scientifically proven to reduce cancer risk, help your heart by lowering bad cholesterol, repair liver
轻松英文阅读
Section (C) Twins Six Years Apart Scientists in Scotland recently announced that, for the first time, they have cloned an exact copy ofan adult mammal. The cloned lamb, named Dolly, has the exact same genes as the adult sheep fromwhich she was cloned
新视野大学英语读写教程(3)
Task 2: The Improvement of Rice Script Scientists now know a lot more about a grain that people have eaten for ten thousand years. (S1) Research teams around the world have completed a map of the (S2) genes of rices. The findings appeared last week i
新视野大学英语：视听说教程 4
Unit 6 Nature and Nurture In-Class Reading Twins, Genes, and Environment I. Word List Directions: Memorize the following words and phrases before class. You will benefit from your effort when you get
新编大学英语阅读部分
Transcript (by myconsent) --for reference only Climate change is normally bad news for endangered species, but in the case of Australia s Grey Nurse Shark, some scientists suggest it might actually help their fight for survival. The Grey Nurse Shark
国家地理2008年
He then looked at the region where the Rosetans lived. 接着，他又把思路集中在罗赛托人生活的这块区域。 Was it possible that there was something about living in the foothills of eastern Pennsylvania that was good for their health
异类:不一样的成功启示录
Old school friends meet up again Have you ever wondered what your old school-mates are doing now? Well plenty of people in Britain do. One of the most successful internet ventures in Britain has shown how popular, and how lucrative , nostalgia can b
Take Away English
Pathogens with added genes from Arctic bacteria could serve as vaccines that elicit an immune response before getting cooked in our warm bodies. Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated
60秒科学
SCIENCE REPORT -February 21, 2002: Women and Sense of Smell By George Grow This is the VOA Special English SCIENCE REPORT. Two new American studies are adding to our understanding of women and their s
科技之光
This is the VOA Special English Agriculture Report. Scientists have discovered more details about how plants use water. Their findings could help to engineer plants that grow better and more effectively in conditions with higher levels of carbon diox
2010年慢速英语(一)月
Apatites- a family of calcium phosphate salts which are found in hard tissues like bone, teeth and shells. Apoptosis - death of a cell which is programmed by a set of specific genes. Apoptosis of chon
医务英语
Occlusal wear - loss of enamel on the biting surface of the teeth due to the abrasive action of chewing natural unprocessed food. Odontoblast process - the extension of the cy lasm of an odontoblast w
医务英语
WHO: Bird Flu Not Transmitted from Person to Person Nancy-Amelia Collins United Nations health officials say the bird flu that has led to the killing of tens of millions of chickens in Asia is not bei
VOA2004（上）--各类新闻
新gre作文写作考察考生完成题目过程中是否能够融合批判性思维和分析写作能力，以下是gre考试写作部分issue的优秀写作实例，通过这些优秀范文或是习作，考生可以借鉴里面的短语、句子或思
GRE作文
AGRICULTURE REPORT – June 18, 2002: Sunflower Rubber By George Grow This is the VOA Special English AGRICULTURE REPORT. Many farmers grow sunflower plants. The tall plants produce beautiful flowers
农业与发展