VOA慢速英语--研究人员发现入侵物种的“善良”一面

Researchers Find Bright Side to Some Invasive Species Non-native species present threats to natural environments across the world by pushing out native organisms. Their presence can seriously damage ecosystems that provide clean water, food and other

SSS 2008-11-26

Darwin's fabled isles, the Galapagos, are in need of a makeover. And removing invasive species of plants tops the to-do list for the islands restoration. But six species that were set to be exterminated have gotten a reprieve. Because a new study fin

【中级类英语听力】19

We've lost our dog. Luckily he has a tag around his collar and he is also microchipped. It's a smart idea to get your dog microchipped. The microchip is inserted under the skin of the animal. It is done at a veterinarian's office or an animal shelter

简单慢速英语阅读:The Mole

She had a mole on her face. She hated it. It was on her left cheek. It wasnt far from her mouth. She touched it every day. She wished that it would go away. But it didnt. It was an ugly brown bump on her cheek. It was a dark brown circle. It was abou

原版英语小短文 18. The Mole

She had a mole on her face. She hated it. It was on her left cheek. It wasn't far from her mouth. She touched it every day. She wished that it would go away. But it didn't. It was an ugly brown bump on her cheek. It was a dark brown circle. It was ab

SSS 2011-08-10

Invasive species get a bad rapbut we humans are usually to blame for their spread. Take Japanese stiltgrass, an invasive that arrived from Asia nearly 100 years ago as a packing material for porcelain. When it creeps into forests, it forms dense carp

美国国家公共电台 NPR For Berlin, Invasive Crustaceans Are A Tough Catch And A Tough Sell

RACHEL MARTIN, HOST: OK. We're switching gears now over to Berlin, where there is a strange invasion of Louisiana crayfish. The problem reportedly stems from some Berlin residents who bought the fish as pets, only later to dump them in public waters.

VOA慢速英语2013 SCIENCE IN THE NEWS - Traditional Test for Cervix Cancer Being Used to Test for Other Cancers

SCIENCE IN THE NEWS - Traditional Test for Cervix Cancer Being Used to Test for Other Cancers This is SCIENCE IN THE NEWS, in Special English. Im Kelly Jean Kelly. And Im Avi Arditti. Today, we tell about a new way to test for cancers of the female r

2006年VOA标准英语-Minimally Invasive Surgery is New Trend

By Melinda Smith Washington, DC 27 July 2006 watch Surgery report Having surgery used to mean the permanent memento of an ugly scar. But the trend in modern surgery is something called M.I.P., which stands for Minimally Invasive Procedure. There are

VOA标准英语2010年-Invasive Asian Carp Harm Commercial Fi

Commerical fisherman Chad Isaak and a partner haul in a boatload of invasive Asian Carp, Jul 2010 The multi-billion-dollar commercial fishing industry in the Great Lakes region of the United States employs more than 800,000 people, but is threatened

VOA英语2010年-Human Health Depends on Biodiversity

There's a good reason why people should be concerned about having a healthy environment containing lots of animal and plant species. A new study says the loss of biodiversity may make humans more vulnerable to infectious diseases. Biodiversity is one

VOA标准英语2014--美用黄蜂对抗甲虫入侵

Wasp Recruited to Fight Invasive Beetle 美用黄蜂对抗甲虫入侵 Scientists are pitting insects against insects in a battle to control an invasive species. U.S. Department of Agriculture researchers have released tiny parasitic wasps in forests

美国国家公共电台 NPR Louisiana Issues Quarantine To Control Invasive Marsh-Killing Bug

SCOTT DETROW, HOST: Louisiana's shrinking coasts face a new threat. In addition to sinking land, sea level rise and erosion, a tiny bug from the other side of the ocean is killing off marshes. This week the state issued an emergency quarantine. Travi

【英语时差8，16】海洋最需

Don: Today, on A Moment of Science, the Ocean's Most Wanted. Sure, they might seem innocent and downright lovely in your aquarium, but released into the wild, your plants and fish can knock aquatic ecosystems right out of balance. Today's invasive sp

VOA常速英语2007-Volunteers Band Together to Help Keep America Be

By Carol Pearson Washington 11 October 2007 One third of the land in the United States belongs to the public. And once a year Americans get a chance to help make these public lands beautiful and healthy for generations to come. VOA's June Soh visited

VOA标准英语2010年-Eat to Beat Invasive Lionfish

Lionfish are taking over coral reefs in the Caribbean and Atlantic. Here, Lad Akins catches one. In the waters of the Caribbean Sea, a voracious invasive species called the lionfish is threatening to overtake the reefs. Conservation groups are fighti

咱们裸熊 第15期:软糖交易

Okay, here it is. 好啦，就是这里啦。 The date is June 24th. 今天是六月二十四号。 I've found what I believe to be a cave. 我猜我发现的这是一个穴居。 Oh. This furniture looks handmade. 噢，这家具是手工制作的。

Step by Step 3000 第2册 Unit10:Health(3)

Part 3. Lifestyle and environmental factors versus cancers. Keywords. factors, control, cancer cases, list of causes, life style and environmental exposures, best option. Vocabulary. bladder, cervix, pancreas, digestive tract, speculate. A. You're go

经济学人211:入侵物种 繁衍与湮灭

Science and technology 科学技术 Invasive species 入侵物种 Boom and bust 繁衍与湮灭 Invasive Argentine ants may be less persistent than once feared 入侵性阿根廷蚂蚁可能没有想象的那么可怕 Ready for take-off 随时准备离

美国国家公共电台 NPR Scientific Duo Gets Back To Basics To Make Childbirth Safer

DAVID GREENE, HOST: This is the story about two women, a doctor and a mechanical engineer. They came together to study one of the most basic parts of human life - pregnancy and labor. That's because there's a lot we just don't know. NPR's Alison Kodj