【Phat Yeti出品】60-SECOND SCIENCE 官方听力文稿 + 讨论帖 （更新至：2008.03.07）

深海lavenderUID: 2350207

AREN'T后省略了WATER.
IT'S THE PARTS OF YOU THAT AREN'T (WATER)做主语.
意思是:在激光下作用最大的部分是你身体的不是水的那部分.

pizza_lalaUID: 2381325

嗨，谢谢，明白了：）

豆豆～UID: 2378384

Little Liver Leaves Big Livers Lively

Pharmaceutical companies sometimes have to pull new drugs off the market because they harm our livers.  The drugs may have been tested on liver cells from rats, or on human cells that are nearly dead.  But these kinds of tests do a poor job of mimicking real livers.

Now researchers at MIT have developed a better method.  They’ve created a colony of human liver cells that act like the real thing.  The research was published in the journal Nature Biotechnology.  The cell colonies are only 500 millionths of a meter in diameter.  Researchers arrange the cells on a plate in much the same way as copper wires are placed on computer chips.

These micro livers mimic the actions of real livers—including producing
enzymes necessary to break down drugs and other toxins.  The tiny organs last for six weeks.  So they can evaluate the effects of drugs over a longer time period than current tests.  A start-up company has licensed the technology and is preparing it for market.  The little livers could be cheaper and more accurate than drug tests now used.

[ 本帖最后由 豆豆～ 于 2007-11-30 08:32 编辑 ]

jennysunUID: 2391807

thank you so much!

shareshine9UID: 2343451

豆版真是大好人啊！顶！

katekangUID: 2420693

太感谢了，正在想哪里可以找到练习听力的资料:handshake

深海lavenderUID: 2350207

想不到这几天老米还是蛮有效率的.恩,不错不错.;d:

豆豆～UID: 2378384

Contented Cows Produce Wood Content

We all know what comes out of cows.  And I’m not talking about about milk.  What I am talking about it so-called “bovine digested solids.”  That’s the genteel term used by Jerrold Winandy of the US Forest Products Lab in Madison, Wisconsin.  Who has found a new use for brown cow creations.  At the recent World Dairy Expo in Madison, he displayed paper and particle board made from bovine digested solids.

Because dairy cows munch on grass, they churn out a lot of cellulose in addition to milk.  And, Winandy says, there’s a big industrial demand for wood fiber, which is also made of cellulose.  It’s used in inexpensive furniture, like the desk on which your computer may rest.


After the so-called bovine digested solids get further digested by bacteria to convert some of it to methane to run generators, the cellulose fiber remains.  Winandy and his colleagues are looking at how well it could combine with wood fiber.  A successful mix would reduce the need for wood and earn dairy farmers a much-needed extra buck.  Let’s hope the idea doesn’t flop.

[ 本帖最后由 豆豆～ 于 2007-11-30 16:54 编辑 ]

深海lavenderUID: 2350207

up.

深海lavenderUID: 2350207

顶．

深海lavenderUID: 2350207

早上下果然快很多......看来早起就是有好处啊.;d:

深海lavenderUID: 2350207

UPUP.

深海lavenderUID: 2350207

有更新没?

maureenyaoUID: 2360848

ｔｈａｎｋｓ

formattingUID: 2312404

thank you very much