单词：waterbugs
单词：waterbugs 相关文章
During the summer months, I often have a barbecue with my friends. I first put charcoal in the grill, pour some lighter fluid over the charcoal, and then light the grill with a match. It usually takes a few minutes for the grill to get going, and I d
在家—At Home
The airboat roared like a low-flying plane, whizzing across the sawgrass. It was such a strange boat, Violet thought, as the wind whipped her ponytails straight out behind her. Mr. Osceola sat perched on a high seat, operating the controls just in fr
66 The Panther Mystery
SCIENCE IN THE NEWS - All About Fireflies and Possible Liquid Water on Mars CHRISTOPHER CRUISE: This is SCIENCE IN THE NEWS, in VOA Special English. Im Christopher Cruise. BOB DOUGHTY: And Im Bob Doughty. Today, we tell about evidence of liquid water
2011年VOA慢速英语(八)月
AS IT IS 2013-05-01African Elephants, The Information Revolution and Nigeria's Safe Water From VOA LEARNING ENGLISH, welcome to As It Is! Hello, Im Steve Ember. Today on our program: African elephants facing their worst crisis in yearsa revolution in
2013年VOA慢速英语(五)月
In spring, as the weather finally warms, the rivers begin to unlock. Broken-ice makes handy barges for lazy water fowl. But the gaps in the ice also give golden-eye ducks a chance to fish. Soon, they are hunting in force. They are not the only ones b
自然百科2011年
England in the 1500s Here are some facts about the 1500s： Most people got married in June because they took their yearly bath in May，and，still smelled pretty good by June．However，they were starting to smell，so brides carried a bouquet of
英语沙龙
This is scientific Americans 60-Second Science, I am Karen Hopkin, this will just take a minute. Time for another episode of those amazing alligators. On March 14th, we told you how gators use their lungs to steer through the water. Now, Louisiana bi
Scientific American(四)月
This is Scientific American's 60 seconds science. I'm Kellen Horgon. This will just take a minute. Have you ever wondered what happens to mosquitos in the rain, a raindrop is like 15 times heavier than those little suckers. So getting hit by one, he'
Scientific American(六)月
The Sentry autonomous underwater vehicle (AUV) aboard the research vessel Endeavor at the Deepwater Horizon oil spill site. A new report finds that the oil in the Gulf of Mexico still persists in the form of a massive plume that, according to scienti
VOA标准英语2010年(八)月
So competition was fierce. 于是，竞争很激烈。 There was also an omnivorous and unsettling new type of predator on the scene, 而且，出现了一种新的无所不吃的、令人不安的捕食者。 one so perfectly designed for attack tha
万物简史
Science and Technology 科技 Clean water 清洁水源 Silver threads of life 生命的银丝带 A water filter that kills bacteria, rather than just removing them 新滤水器能够消灭细菌，而不单单是排除细菌 MORE than a billion peopl
经济学人科技系列
If we are looking for Martian bugs, we should search for life forms at least as tough and alien as this. Im looking at Mars in a point of view of a microbe. And as a microbe, I really need very, very tiny amount of water. I could probably live my ent
自然百科2012年
Clean water 清洁水源 Silver threads of life 生命的银丝带 A water filter that kills bacteria, rather than just removing them 新滤水器能够消灭细菌，而不单单是排除细菌 MORE than a billion people lack clean waterand in most
经济学人综合
Indian health officials have rejected a new medical study warning of widespread drug-resistant bacteria in the country's capital. But the co-author of the study says Delhi is in denial, and warns the bacteria can spread easily around the world, possi
英语新闻
On our last program, we learned how water bugs manage to stand on the surface of a pond: The pads of their feet resist contact with the water just like wax paper does. This allows the bug to rest on the thin film of surface tension that naturally cov
英语时差8，16
Its summertime, and youre on vacation. You sit beside a quiet pond, fishing, trying to relax, trying to think about nothing at all. You watch the leaves stirring, the water rippling in the sunshine, and the water bugs standing on the surface of the w
英语时差8，16