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[资料分享] 【Phat Yeti出品】60-SECOND SCIENCE 官方听力文稿 + 讨论帖（更新至：2008.03.07） [复制链接]

js0821
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发表于 2007-12-5 22:22:52 |显示全部楼层

很有用的材料，谢谢分享。

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南淮四月
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发表于 2007-12-5 22:26:51 |显示全部楼层

谢谢～

：）加油加油！

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发表于 2007-12-5 22:28:08 |显示全部楼层

再顶一下！！！

：）加油加油！

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buaa_wangchao
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发表于 2007-12-5 22:53:18 |显示全部楼层

走过路过下过顶过～

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豆豆～
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发表于 2007-12-5 23:08:10 |显示全部楼层

怎么突然这么多人顶。。好感动。。哇咔咔;d:

～豆豆～改作文的小屋子
 口语六道题复习建议
 iBT报名全流程［图解版］
GTER 07年TOEFL iBT口语|写作机经整理

Life is like a 2πr.

Our deepest fear is not that we are inadequate. Our deepest fear is that we are powerful beyond measure. We ask ourselves, Who am I to be brilliant, gorgeous, talented, fabulous? Actually, who are you not to be? We were born to make manifest the glory of God that is within us. It's not just in some of us; it's in everyone. And as we let our own light shine, we unconsciously give other people permission to do the same.

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发表于 2007-12-6 02:18:34 |显示全部楼层

的确是好东西，顶了

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发表于 2007-12-6 08:02:36 |显示全部楼层

再顶！

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发表于 2007-12-6 09:03:35 |显示全部楼层

回复 #221 豆豆～的帖子

:o 那还不是在我的鼓动下~~;d:
再水~~

Que será, será.

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发表于 2007-12-6 10:05:01 |显示全部楼层

60-second science蛮不错的，现在每天更新podcast

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深海lavender
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发表于 2007-12-6 14:46:47 |显示全部楼层

顶＋水．;d:

Que será, será.

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豆豆～
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发表于 2007-12-6 17:26:50 |显示全部楼层

60-Second Science - December 06, 2007

Carbon Dioxide Changes Leaf Color Timing

Depending on where you live, you may still have a few tenacious leaves hanging onto their trees. And these days, you’re likely to have more of those tenacious leaves. Measurements in europe have revealed that the color change and falling of the leaves has moved back about one and a half days per decade for the past thirty years. Spring has also sprung forward, and that’s clearly linked to global warming. But new research suggests that the delayed falls are mostly due to the direct effects of increased carbon dioxide.

Researchers from the University of Southampton in the UK raised poplars in today’s CO2 levels, and in levels predicted for 2050. They found that the 2050 trees used the extra CO2 to make compounds that kept their leaves alive and green longer. Their findings appear in Global Change Biology. this could be good and bad. The trees will be more productive, but they might not prepare as well for winter. Either way, this finding means that increasing levels of carbon dioxide can affect trees both indirectly through global warming and directly as a chemical compound.

[ 本帖最后由豆豆～于 2007-12-6 17:28 编辑 ]