文章列表

• 1.听力文摘：生病的时候为何会脱水
• When you have a cold or flu, the doctor (or Dr. Mom) may tell you to drink lots of fluids. But did they ever explain why you need to guzzle all that w...
• 2.听力文摘：月球地表形态的无限保质期
• In 1969 when Neil Armstrong said That's one small step, he made a lasting impression. On the moon, that is. 1969年阿姆斯特朗的那句人类一小步。给人留下...
• 3.听力文摘：猩猩为什么不会得癌症?
• You may have heard that humans and chimpanzees have something like 96 percent of our DNA in common. So why, then, are diseases like cancer so common i...
• 4.听力文摘：被纸划伤怎么如此疼痛?
• Few minor injuries are as painful as the dreaded paper cut. Just thinking about it probably makes you cringe. However, these cuts are usually small, h...
• 5.听力文摘：闲谈什么是电梯效应
• Today's program is about an effect that not only have we all witnessed, but have participated in. Haven't we all been on an elevator and noticed that ...
• 6.听力文摘：冰河世纪动物如何生存
• During the last ice age, rapid swings in temperature occurred within decades or less, meaning populations of organisms had to adjust quickly to new en...
• 7.听力文摘：鱼儿平时喝水吗
• Water gets into a fish's body through osmosis, the process in which water diffuses from a higher to a lower concentration. 水通过渗透作用进入鱼儿的身...
• 8.听力文摘：乘坐飞机耳朵痛的原因
• On airplanes, cabin pressure changes during takeoff and landing to help passengers breathe easy at high altitudes. These changes in air pressure may m...
• 9.听力文摘：大熊可称是落基山脉的旋耕机
• Today's Moment of Science digs up the story behind one of the grizzly bear's more unusual nicknames: the Rototiller of the Rockies. 今天科学一刻将会深...
• 10.听力文摘：揭秘车后窗玻璃上的雨滴形状
• The next time you're driving during a rain shower, glance back at the rear window. You'll notice that while raindrops batter the front windshield, the...