【英语时差8，16】男友家人入侵我们公寓

Dear Annie: I live with my boyfriend, Mike, in a very small apartment. Last month, his mother and 14-year-old sister moved in. They had nowhere else to go. His mom has no money and nothing to contribute except for some food stamps, which keep the pan

【英语时差8,16】蜂蜜：天然保鲜剂（下）

So because of its high sugar concentration, pure honey will never ferment or go bad. It may crystallize but by soaking the jar in hot water you can turn it back into a liquid. Adding water, however, lowers the concentration of sugar in the honey and

【英语时差8，16】选择适合您自己工作的电脑屏幕

Monitors frame our relationship with our computers and a great computer is only as good as its monitor. Although nearly every flat screen monitor is based on LCD technology, there are differences between the models. Apart from the price, one of major

【英语时差8，16】头球危险吗？

Is heading in soccer dangerous? It's a question that has met its fair share of controversy. If you've never played soccer, heading may look pretty dangerous to the poor brain. Where else in life do you not want to duck away from an object flying stra

【英语时差8，16】垦丁动物嘉年华会

A staff member of the Kenting National Park Administration Office reminded parents that August at Kenting National Park in the southernmost county of Pingtung is a good time to see barn swallows and land crabs. The sight of hundreds of swallows perch

【英语时差8，16】关爱延寿

Don: Time once again for Surprise Finding. This is where we report on some experiment where you think you know the outcome, but then mother nature surprises us again. Ready? Ya?l: Ready. D: Analyzing data from a five-year study, Stephanie Brown, a ps

【英语时差8，16】谈谈自行车

Amanda: Check out this new folding bicycle that my boyfriend bought for me! We've decided to keep fit together by riding around town whenever we get the chance. Mike: Oh, that's nice, but it kinda looks dorky with those small wheels. And what's even

【英语时差8，16】眼见

Don: Say you're looking at an object on a table in front of you. How long do you think your eyeballs stay in one position? Ya?l: You mean, how long before they move? I'm going to guess... a minute. D: More like less than a second. Y: Yow! D: Though w

【英语时差8，16】天生爱游荡

When you've been to the zoo have you noticed how some of the animals pace around a lot? In this Moment of Science Don and Ya?l discuss one explanation for this behavior. D: Ya?l, I went to the zoo yesterday, and boy, the polar bear just kept pacing i

【英语时差8,16】记忆的奥秘（下）

In two studies, scientists showed volunteers a series of words or images while their brains were being monitored. The volunteers were not told it was a memory experiment, so they made no special effort to memorize the words or scenes. After the exper

【英语时差8,16】瓶装雨水

Don comes up with another entrepreneurial venture, but Yael straightens him out just in time. [Thunder] Y: What are you doing outside, Don? It's about to rain. D: I'm setting up bottles. Y: I can see that. But why? D: For my new business venture: bot

【英语时差8,16】青霉素的历史

Today, a fever is an uncomfortable nuisance, but a hundred-plus years ago, fevers were often fatal. The difference between then and now is the class of drugs known as antibiotics. As the name implies, anti-biotics work against life, or, more specific

【英语时差8,16】有机蔬菜真的更健康吗？2

Now, keep in mind that the re may be other reasons to buy organic vegetables. Some people prefer the taste. And because pesticides and fertilizers can pollute rivers and contribute to dead zones in oceans, using less of these chemicals is good for th

【英语时差8,16】谈谈减肥

Why does blowing on hot soup help to cool it off? Its because of evaporation. Evaporation cools down a liquid because the most energetic molecules leap off the surface and leave the slower-moving molecules behind. Slower-moving means lower temperatur

【英语时差8,16】大脑与手2

When people lose a hand, the part of the brain dedicated to that area receives no input at all. It becomes inactive. But the areas around it are still getting signals all the time. Some of those signals seem to leak over into the unused area. Just by

【英语时差8,16】空中舞蹈

By bending arms and legs or angling her bodypresenting more or less surface area to the groundshe can change her rate of fall, slowing or speeding up her terminal velocity around ten or twenty miles per hour. To fall as fast as two hundred miles per

【英语时差8,16】土星上真的有生命存在？

Acetylene and hydrogen molecules are disappearing from the atmosphere of Saturns moon, Titan. Its a mystery befitting Sherlock Holmes investigative skills, a mystery NASA scientists hope to crack. About fifty percent larger than Earths moon, Titan is

【英语时差8,16】什么是卟咻症？

The vampire is the stuff of the great horror stories. However, a recent textbook by geneticist John Jenkins suggests that Bram Stokers legend of the vampire, Dracula, may have had its basis in a very real disease that prevents some people from gettin

【英语时差8,16】如何界定性别？2

Another sexual difference among mammals that doesnt hold with other animals is size. In most mammals the male is larger than the female, but in most other animals where there are two distinct sexes, the female is the larger one. Today scientists defi

【英语时差8,16】动物界的染色体有何不同？

In mammals, the sex of a baby is determined by the combination of chromosomes it inherits from its parents. Nearly every cell in a male body has two different sex chromosomesone is shaped like an X and one is shaped like a Y. Females also have two se