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VOA美语咖啡屋 Lesson 87:Heidi, The Animal Lover Heidi, Animal Lover Y: 大家好,这是杨晨。欢迎到美语咖啡屋。 J: Hello everyone! I'm Jody! Welcome to American Cafe. Y: Jody, 你有没有听到什么奇怪的声音? J: What no
Every fall, you need a new flu shot. Thats because todays vaccines train your immune system to recognize specific strains of flu, indentified by two proteins on the viruss coat, / and /. Thats where the H and N come from in H1N1. Problem is those pro
RACHEL MARTIN, HOST: Today in Your Health, we take a look at female athletes and concussions. Most of what scientists know about these injuries comes from studies of men, even as more women are competing in contact sports. NPR's Jon Hamilton has the
Pepper's adventure One day Dad came home with two pet mice in a little cage. Sarah loved them. She called the brown one Pepper and the white one Salt. Dad made a big new cage for Pepper and Salt. It had a wheel and a ladder and a room upstairs. Sarah
美国加州梅林镇的海岸有一种名叫泰德斯茺(Tidestrom)的豆科植物,正在垂死挣扎。它们的生存正在受到一种外来植物的威胁,名叫欧洲滩头草。 At Point Reyes National Seashore in Marin County, Califor
Youve probably seen dogs working security at airports, sniffing for drugs, bombs and contraband food. Now our best-friend biosensors might have a new task: ferretting out the scent of bird flu. And they may not be alone on the job. Researchers from t
The Cat and the Bell (猫和铃) There were many mice in a house. The man of the house got a cat. The cat killed many of the mice. Then the oldest mouse said,
I've always thought that when I get a fever, it's my body trying to make things uncomfortable for the invading pathogen. And that's often true - higher temperatures can inhibit the bad guys' ability to replicate. But my fever may actually be a one-tw
The balance of nature It is very important for us to keep the balance of nature, and nature often teaches its lessons. Here are two examples: Eagles eat chickens. They felt mice as well. The farmers want to kill many eagles to protect their chickens,
This is the VOA Special English Agriculture Report. Dominette, a Hereford cow whose genetic material was used in the study Researchers from twenty-five countries have made a genetic map of a cow. Better understanding of what makes a cow a cow could
This is the VOA Special English Health Report. Rheumatoid arthritis is a painful disease that can destroy joints. Women are three times more likely to get it than men. Rheumatoid arthritis is considered an autoimmune disease, a disease where the body
Spray Detects Hard-to-Find Tumors Surgeons may soon have a new tool to help locate early-stage cancerous growths; a spray that turns fluorescent green when it comes into contact with tumors. The spray is clear, but contains a non-toxic dye that almos
New Malaria Drugs Stop Parasite Early U.S. medical researchers report a possible breakthrough that might prevent infection by one of the two most widespread varieties of malaria. A new class of anti-malaria compounds kills the parasites in the develo
Research Group Has High Hopes for New TB Vaccine Physicians have long known that the so-called BCG vaccine for tuberculosis does not provide the same level of protection against the disease in all parts of the world. Some also say the vaccine's effec
Sepsis is a severe infection that can often be fatal, particularly in obese patients. Now, a new study suggests why obese patients are at greater risk and suggests a possible new approach to treatment. Sepsis is seven times more likely to kill patien
Lesson 47 Cat 1.All cats are gray in the dark. 2.The cat shut its eyes when stealing cream. 3.Don't let the cat out of the bag. 4.He looks like a cat on hot bricks. 5.A cat in gloves catches no mice. 6.When the cats are away,the mice will play. 7.Eve
Heavy Screen Time Rewires Young Brains, For Better And Worse play pause stop mute unmute max volume 00:0003:17repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plu
《我 的第一套自然拼读故事书》是美国创新儿童出版社(Innovativekids)出版的一套用自然拼读法引导和培养孩子阅读兴趣的故事绘本,适合中国学 龄前和小学低年级的小朋友阅读和学习。整套
this is Scientific American's 60 seconds' Science, i am Karan Hawking. This will just take a minute. Secret feeling chilly? Well, they may be a solution. Because researcher has generated genetic engineering mice: the kent field the cord. They worked
Nicotine Enhances Effects of Cocaine A new study from Columbia University highlights the role of tobacco in cocaine addiction. The research indicates that nicotine may be a key gateway drug in a biological as well as a social context. Dr. Amir Levine