英语听力文摘 English Digest 420、无形的力量

The Invisible Hand 无形的力量 A: What's going on? B: Check out the setup , Yaoyao. A: A stove, an empty aluminum soda can, kitchen tongs , and a saucepan . Are you experimenting with a new recipe ? B:No, i'm experimenting with air pressure. A:Ho

英语听力文摘 English Digest 428、泥土的芬芳

The Smell of Dirt A lot of people love that fresh-dirt smell. The surprising thing, though, is that it isnt coming from the dirt itself. Microbiologist s have traced the pleasant odor to an organic chemical called geosmin. No way! But how does geosmi

英语听力文摘 English Digest 436、UFO来袭！

UFO Attack 飞碟来袭 June.Nineteen sixty-nine, not one airliner but two, plus the pilot of an Air National Guard fighter plane, report being harass ed by a team of UFOs. One man estimates the glowing ships have come within a few hundred feet. The

英语听力文摘 English Digest 91、哪种烟最有害

We all know that smoking cigarettes is bad. But what about smoking a pipe or cigars? Since you dont inhale, is it better for your health? Or at least less bad? Good question.So first, its true that cigarettes are in a league of their own when it come

英语听力文摘 English Digest 79、飞机造成的耳朵不适

When traveling by plane what makes our ears pop, and what is it exactly that pops? Most of us are familiar with this phenomenon of travel: it usually happens on takeoffs and landings. Our ears pop because of the change in air pressure as the plane as

英语听力文摘 English Digest 83、惠特尼休斯顿个唱不尽如人意

Fans have waited 11 years and put up with three postponements of the concert, but the American singer Whitney Houston finally returned to the UK stage last night. But Whitney's comeback gig on British soil prompted a mixed response from the fans who

英语听力文摘 English Digest 92、蚂蚁不怕水

Ant species that burrow have different flood survival strategies. I mean nest design alone can go a long way. Some species make sure to build their nests in sandy or well-drained soil that absorbs moisture and dries quickly. And others build mounds w

英语听力文摘 English Digest 94、笑话-聪明的鲍比

Bobby Brown was very proud of his young son. Once he was talking to a visitor, telling the man how clever his son was. The boy is only two years old, he said, and knows all animals. He's going to be a great naturalist. Here, let me show you. He took

英语听力文摘 English Digest 142、家庭医生

An apple a day keeps the doctor away. Family doctors are usually called GPs, or general practitioners. My name is Louis Brassy. Im a so-called general practitioner doctor in the centre of London. Im one of two doctors working in our clinic and betwee

英语听力文摘 English Digest 146、儿童新闻

Hi there, I'm Sonali from the BBC World News for Children. Coming up: A train crash in India has killed 65 people. Brazil's footballers are set to play Tanzania and Zimbabwe. And frogs cause traffic chaos in Greece. First - at least 65 people have di

英语听力文摘 English Digest 147、流星

If you find yourself away from a city, spend an hour looking up on any clear, moonless night. You're bound to see a few brilliant shooting stars. These actually have nothing to do with stars: They're meteors, and if your viewing conditions are good,

英语听力文摘 English Digest 254、无霜冷冻

Frost-free Freeze Physics 昇華是指一种物质从固态不经过液态直接转化为气态的过程，是物质在温度和气压低于三相点的时候发生的一种物态变化。与昇華相反的过程称做凝華，指物质从气态直接变

英语听力文摘 English Digest 305、绒线的颜色

The Color of Lint 绒线的颜色 You go to the local laundromat to do your wash.In the spinning barrel full of sudsy water you load clothes of all colors: a bright red tee-shirt, blue jeans, a green bandanna. The original mix of clothing is as multi

英语听力文摘 English Digest 306、被误解的水蒸气

Clouds in the Kitchen 厨房飘着的云朵 Fill a kettle with water, then turn on the burner. In a while, your kettle will start belching white billowy stuff into the air. What is this stuff? Steam? Actually, no. Steam is water thats heated to two h

英语听力文摘 English Digest 320、南极地衣

南极地衣 南极地衣是地球上最古老的植物之一，是一类原始型的低等植物，它能适应南极洲那种沙漠般的干燥和极度寒冷的环境，所以它是分布最广、种类最多的南极土著植物。它主要分布于

英语听力文摘 English Digest 322、睡不着？暖暖手吧！

Cant Sleep? Warm Your Hands! 睡不着？暖暖手吧！ Ya?l: You okay, Don? Don: Sorry,Ya?l . I've been having trouble sleeping lately. Y: Have you tried thinking warm thoughts about your hands and feet? D: Uh,No. Why would I wanna do that? Y: Beca

英语听力文摘 English Digest 329、地球上最成功的物种

The Most Successful Species on Earth 地球上最成功的物种 For many scientists, a species success is measured by sheer numbers. In that case, the most successful species known to man is a type of bacterium known as S-A-R-11, or SAR-11 for short

英语听力文摘 English Digest 332、不明飞行物

Whats That in the Sky? 不明飞行物 In his book Cosmos , the late scientist Carl Sagan talks about the way in which the earth is regularly struck by material from outer space. These collision s with space debris can be minoras in a shooting star o

英语听力文摘 English Digest 341、胶带能治病？

Duct Tape and Wart s 管状胶带和疣 Have you ever used duct tape to tape a duct ? Do you even know what a duct is? Maybe not. But you definitely know what duct tape is, and youve probably used it to fix everything from glasses to flashlights. Now

英语听力文摘 English Digest 359、隐形眼镜的秘密

Making Contact 为什么戴隐形眼镜看东西更清楚？ Don:I get contact lenses to replace my glasses and its like Im seeing the world through new eyes. Its miraculous ! Yal: Acutlly, Don, there is nothing miraculous about it. D: Who tell? Y: W