文章列表

• 1.听力文摘：人类何以长寿?
• Long Live Us 人类万岁 About a century ago, the average life-span for Americans was about 50 years. Today, the typical American lives for around sevent...
• 2.听力文摘：为什么盐会结块?
• Why Salt Clumps? 为什么盐会结块？ You probably noticed that sometimes the salt gets clumpy. If it's really humid outsidethere may even be condensation...
• 3.听力文摘：冬小麦
• Winter Wheat 冬小麦 According to the famous song, America is beautiful for its spacious skies, purple mountains, and amber waves of grain. If you were...
• 4.听力文摘：长胖都是"喝"惹的祸
• Eat, But Don't Drink Up 吃东西，别喝太多 Well. In a recent study on nutrition, participants spent one month drinking a sugary beverage, and another mo...
• 5.听力文摘：昆虫是怎样喝水的?
• How Insects Drink？ 昆虫是怎样喝水的？ A: I was sitting on my Porsche yesterday, having asoda, and a wasp picked its head into the can anddrink from m...
• 6.听力文摘：别样的择偶观
• Wolf Spider Mating Choices 狼蛛的择偶观 Well, you know what they say. A woman will marry the man who reminds her of her father, and a man will marry a...
• 7.听力文摘：巧克力热饮有益心脏
• Good News: Hot Chocolate Is Good for Your Heart! 巧克力热饮有益心脏 Drinking green tea all the time may get a little boring,but it's helping me stay h...
• 8.听力文摘：杯满了吗?
• How Full Is That Glass? 杯有多满？ How does the shape of a glass affect how much you drink? A scientist set out to examine just this, and the results ...
• 9.听力文摘：不洗手的害处
• The Importance of Hand Washing 洗手很重要 In a recent study of people passing through major U.S. airports, it turned out that about thirty percent wer...
• 10.听力文摘：有三个心脏的家伙
• You Gotta Have Hearts 你必须得有的心脏 When it comes to weird sea-creatures, octopuses are hard to beat. There's the well-known ink-squirting defense ...