文章列表

• 1.【英语时差8,16】为什么同类相残不常见（下）
• For years, biologists have suspected that the answer has to do with disease. Many diseases are species-specific, infecting only animals of the same sp...
• 2.【英语时差8,16】石油能源已耗尽？
• But its worth trying to eat less. In one study, researchers used computer models to see how less salt could affect teens health. One result showed tha...
• 3.【英语时差8,16】追风筝的小孩，两个小主角表现抢眼
• The Kite Runner is an adaptation of the Khaled Hosseini novel, which told the story of how childhood friendship and betrayal played out when its chara...
• 4.【英语时差8,16】跑步的秘诀（上）
• Running shoes are carefully designed to cushion your feet and provide arch support and padding and all that stuff. Run without shoes and youll tear up...
• 5.【英语时差8,16】撕纸的科学
• The way paper tears is related directly to how it is made. Most paper is made from wood fibers. Logs are chopped into wood chips, mixed with water and...
• 6.【英语时差8,16】如何保存肉类？（下）
• If the uncooked meat is refrozen these new bacteria are put into suspended animation along with their living ancestors. This means that when the meat ...
• 7.【英语时差8,16】为什么磁极会交换方向？（上）
• On a previous show we discussed how, every 200,000 years or so, the north and south poles switch places. Not that the places themselves moverather, th...
• 8.【英语时差8,16】磁极（下）
• By calculating how old the rocks are where we find these ancient compasses, we can figure out how long ago the magnetized parts were locked in. That t...
• 9.【英语时差8,16】人类最好的朋友
• Four regions were found that may regulate life span, a breed characteristic that usually decreases with increasing body size. Regions associated with ...
• 10.【英语时差8,16】快乐戒烟
• We all know that smoking is unhealthy. But whats the best way to get someone to quit? By harping on the dangers of lighting up, or by touting the bene...