VOA常速英语2018-- 非害虫昆虫的减少引起科学家们的担忧

Scientists Fear Non-Pest Insects are Declinin Butterflies are as beautiful as the flowers they feed on.But they appear to be less abundant than in years past and that has scientists worried.Because butterflies, bees and other beneficial bugs pollinat

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

VOA标准英语2011--ontrolled Time Machine Tests Prairie Fut

Climate-Controlled Time Machine Tests Prairie Future Researchers from the University of Oregon have set up a kind of time machine to test how a warmer climate might affect grasslands and prairies around the world. Today, grasslands cover between 25 a

科学美国人60秒 SSS Widening the Suez Canal Ushers In Underwater Invaders

Widening the Suez Canal Ushers In Underwater Invaders 苏伊士运河对地中海水下物种的侵害 The Mediterranean Sea is home to some 17,000 native species. But it's also home to a growing number of non-native species: 756 at last count. 756 m

第77期: facet, knob, native, zip, obedience

说一口流利的英语，从简单的单词开始。 听听，读读，背背，今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 facet [ 5fAsit ] The skill with which

Can You Catch These Native Speaker Mistakes?

From VOA Learning English, this is Everyday Grammar. This week, we will learn a few English words and phrases that are commonly misused in English. Even well-educated native English speakers make the mistakes you will read and hear about today, inclu

SSS 2011-06-08

You shouldn't judge a book by its cover, and you shouldn't judge a species by place of its origin, so say ecologists in the commentary in the Journal Nature. They argued that conservation should access organisms based on their impact on the local env

2006年NPR美国国家公共电台十二月-Native Americans Bristle at Smoking Bans

More coming up on Day to Day from NPR News. From NPR News, it's Day to Day. Americans are loath to vote for higher taxes, except when it comes to smoking. On election days, states like Arizona and South Dakota voted for increased taxes on the sales o

Photos Show Today’s Native Americans

Photos Show Todays Native Americans Matika Wilbur has a goal that will take her across the United States. She plans to photograph every federally recognized Native American tribe in the country. She hopes that her photographs will help end the many s

2007年VOA标准英语-More Species Threatened With Extinction

By Lisa Schlein Geneva 12 September 2007 A new report says the number of species threatened with extinction is escalating. The World Conservation Union, which has just released its Red List of Threatened Species, warns life on Earth will continue to

VOA标准英语2012--Teens Help Revive California Nature

Teens Help Revive California Nature Changed ecosystem Located a little more than an hour off the coast of Southern California by the daily ferry, Santa Cruz Island is a a nature preserve. In the 19th and early 20th centuries, it was used for ranching

VOA标准英语2014--本地蜜蜂可能帮助拯救农作物

Native Bees May Help Save Crops 本地蜜蜂可能帮助拯救农作物 BELTSVILLE, MARYLAND In June, U.S. President Barack Obama called for a federal strategy to promote the health of bees and other pollinators that have been declining. The honeybee

Animal Sanctuary in Australia

Tasmanian Devils, pygmy-possums and native parrots are just some of Australia's threatened species. But thanks to a successful breeding season, one animal sanctuary is optimistic for the future survival of these creatures. Our reporter Li Dong has th

【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

Return of the Native

A man who was born in the state of Yan grew up in the state of Chu．At his old age he decided to return to the state of Yan．On his way he passed the state of Jin．His fellow travellers played a trick on him．They pointed at a city of the state o

New dinosaur species found in east China

JINAN, May 14 (Xinhua) -- Chinese scientists said Saturday that they have found a new species of giant theropod dinosaur in the eastern province of Shandong. The new species, described as a close relative of Tyrannosaurus rex (T. rex), has been named

你们敢来中国吗 小龙虾占领苏格兰

Forget Nessie: there's another insidious creature living in the waters of Scotland. The story starts in the streams and lakes of the northwestern United States, where North American signal crayfish are a familiar sight. Turn over a rock and you may w

新西兰英语 286 Duck Shooting

From the first weekend in May until July, hunters in New Zealand are allowed to shoot ducks for sport. This is called the duck shooting season. Hunters have to get a licence and can kill only a limited number of ducks each day. There are only three t

听播客学英语 121 语言

Last week a woman called Marie Smith Jones died. She was 89 years old and she lived in Alaska in North America. Marie was the last person alive to speak a language called Eyak. Eyak is, or was, one of the native North American languages. Linguists ha

英语听力文摘 English Digest 239、外来物种入侵

Oceans Most Wanted 伴随着人们的经济活动和国际交往，一些物种由原生存地借助于人为作用或其他途径移居到另一个新的生存环境并在新的栖息地繁殖并建立稳定种群，这些物种被称为外来物种。