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[科学美国人60秒] 【整理】SSS 2008-09-22

提高英语听力能力 找对方法很重要!

哈哈

请多多指教!
好, 改天我也试试, 但我的听写水平可能不太好,
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homework

Fingers are pretty nifty. They let you grab a latte, type on a keyboard, even pull up your pants. But did you ever wonder, where the fingers come from? In the 1990 scientists gave this problem a lot of thought. And they concluded that fingers were pretty much invented by the first tetrapods, that is, critters with four limbs. On reason they thought that is because a fossilized skeleton of an ancient fish didn't appear to have any fingers, or at least any distinct digits in its petro fin. But tetrapods, which evolved from fish, did. Now scientists writing in a September 21 online issue of Nature say that that thinking is a little fishy. Because they've unearthed evidence that suggests that ancient fish did indeed have fingers in its fins. The researchers did a CT scan on a specimen about 380 million years old. They found that the fish's right fin, which was unusually well preserved, does appear to have digit-like bones. The reason other researchers previously missed them, they think, is because in their samples the fingers were hidden behind marks left by the fish's scales. So fish too seem to have incipient fingers, a finding we give, two thumbs up. [ 本帖最后由 bigxiami 于 2008-9-23 10:28 编辑 ]
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  • ivyxk

实现无障碍英语沟通

hw

This is scientific American 60 second science, I’m / this will just take a minute. Fingers are pretty nifty, they like to grab /, type on a keyboard even pull up your pens. But did you ever wonder where your finger comes from. In the 1990s scientists gave this problem a lot of thought, and they concluded that the fingers were pretty much invented by the first tetrapod that is equators with four limbs one reason they thought that because a fossilized skeleton of an ancient fish didn’t appear to have any fingers or at least any distinct digits in their pectoral fins but tetrapod which evolve from fish did. Now scientists write in an September 21 on line issue of nature say that they thinking was a little fishy, because they’ve found evidence that ancient fish did indeed have finger in their fins the researcher did a CT scan on a specimen about 380 million years old they found that the fish’s fight fin which is usually well preserved does appear to have digits like bones, the reason other researchers previously miss them they think, is because in their samples the fingers were hidden behind marks left behind their scales. So fish too seem to have incipient fingers, a finding we gave two thumbs up. Thanks for the minute for Scientific American's 60-Second Science. I’m Karen Hopkin.
1

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  • ivyxk

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homework(请注意字体和格式,verdana 3号------ivyxk)

HW.

This is Scientific American’s 60 Seconds’ Science, I’m/// just take a minute.

   Fingers are quite l///, they ///type on a keyboard, even /// your pants. But have you ever wondered, where the fingers come from? In the 1990 scientists gave this problem a lot of thought, and they concluded that the fingers are pretty much invented by the first //// that is /////. One reason they thought that was //// fishers didn’t appeared to have any fingers. ///but // part which involves fish did.

   Now scientists writing on the September 15th, online issue of nature said that gains was little //. Because they find that /// of fish did have fingers ///  The researchers did CT scan on a /// 300 million years old. They found that the fish’s right///which is unusually prizef does appeared to have /// like bones. The reason //// behind the fish’s scale, so fish too have /// fingers.

    Thanks for the minute.

 

[ 本帖最后由 ivyxk 于 2008-9-24 14:25 编辑 ]
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  • ivyxk

Hope is a good thing,may the best of things,and no good thing ever dies

HOMEWORK

This is Scientific American's 60-Second Science. I’m Karen Hopkin. This will just take a minute.

 

Fingers are pretty nifty. They let you to grab a latte, type on the keyboard even pull up your pants. But did you ever wonder where the fingers come from.

 

In the 1990s, scientists gave this problem a lot of thought, and they concluded that fingers are pretty much invented by the first tetrapods. That is critters with 4 limbs. One reason they thought that is because fossilized skeleton of ancient fish didn't to appear to have any fingers, nor is there any digit in it's petrol fin. But tetrapods, which evolved from fish, did.

 

Now Scientists Writing in September 21st online issue of Nature say that thinking was relatively fishy. Because they unearthed evidence that suggests that ancient fish did indeed have fingers in its fin. The researcher did a CT scan on the specimen of about 380 million years ago. They founded that the fish's right fin, which is unusually well preserved, does appeared to have digit like bones. The reason other researchers previously miss them they think is because in their samples the fingers were hidden behind marks left by the fish’s scales. So the fish too seem to have incipient fingers. Of finding we give, 2 thumbs up.

 

Thanks for the minute. For Scientific American 60-Second Science, I'm Karen Hopkin.

1

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  • ivyxk

明日の笑顔をだすために頑張ります

回复 14# 的帖子

哦 知道了 我弄错了 是拿咖啡
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