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  • 英语听力文摘 English Digest 80、手势的作用

    Communicating by voice alone has its drawbacks, though.For example, I cant use hand gestures to clarify what I mean. And, as it turns out, that makes a big difference. Researchers at the University of Otago in New Zealand wanted to know how much a re...

  • 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 78、睡前酒到底好不好?

    Alcohol can cause you to awake frequently in the night, reduce the amount of deep sleep you get, and cause you to wake up earlier than usual in the morning. The overall effect is that you end up feeling tired the next day. And thus you might be tempt...

  • 英语听力文摘 English Digest 77、饮食多样性与肥胖

    Studies suggest that when we eat a variety of foods, we are less likely to get bored. But therefore we are more likely to eat more. That might contribute to the current obesity problem in Americapeople like the taste of different foods and keep eatin...

  • 英语听力文摘 English Digest 76、了解杏仁核

    Past studies have suggested the amygdala is important in emotional responses. Volunteers who are shown frightening pictures, for example, have a sudden increase of blood flow to their amygdalas. Another study has complicated this pictureby adding sme...

  • 英语听力文摘 English Digest 75、乐观者与感冒

    Youve probably heard it said that ones attitude affects ones health.Over three-hundred subjects were assessed in terms of their emotions for a two- week period. They were assessed for positive emotions they might be feeling, such as vigor, well-being...

  • 英语听力文摘 English Digest 74、干旱的成因

    For those of us lucky enough to always have enough food and water, it may be hard to imagine living through a drought. A drought occurs for a variety of reasons, usually including a lack of rainfall and warm temperatures.Soil moisture severely dwindl...

  • 英语听力文摘 English Digest 73、外科口罩的功效

    Dohn,Surgical masks arent designed to protect you. Theyre designed to protect those around you from the germs you might be spreading, by blocking those droplets you shoot out when you sneeze or cough. Surgical masks also divert airflow so that you do...

  • 英语听力文摘 English Digest 72、去太空旅行吧!

    Its 60 feet long, made of lightweight, fuel-efficient material and can carry eight people out of this world and back. The first commercial spaceship was unveiled by Sir Richard Branson, who hopes to start passenger trips within two years. The price t...

  • 英语听力文摘 English Digest 71、恒温调节器

    Thermometers just tell you the temperature. Thermostats need to do more than that. In addition to reading the air temperature, thermostats also turn your furnace on if the air gets too cool, and turn it off again when the air heats up. How do they do...

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