16. Pythons Warm to the U.S. Discarded pet Burmese pythons are breeding in the Everglades--and climate change could make a third of the US potential python habitat. Steve Mirsky reports. ------------- Here’s another reason to stop global warming: to keep the Burmese pythons in Florida. Burmese pythons have been turning up in south Florida in recent years. erhaps you’ve seen the famous photo of a python ripped apart by its efforts to ingest a large alligator. Apparently people with pythons as pets have been getting rid of the snakes when they get too big by dumping them in the Everglades. And in 2003, biologists confirmed the presence of a breeding population of the slithering serpents in Everglades National Park. Which sceeves me out, because I spend a lot of time there. I’m not afraid of timid alligators, but hungry Burmese pythons give me the willies. Anyway, the US Geological Survey recently did an analysis of potential temperatures around the country by the end of this century. And then analyzed where Burmese pythons would be comfortable, based on their home territory, from Pakistan to Indonesia. The result: pythons could colonize a third of the US. Did I mention that they can be over 20 feet long and 250 pounds? Might be the best motivation to do something about climate change. —Steve Mirsky
16. 听写稿！· Here is another reason to stop global warming: to keep the Burmese pythons缅甸蟒 in Florida. Burmese pythons have been turning up in south Florida in recent years. Perhaps you have seen the famous photo of pythons (ripped apart扯破by its efforts to ingest a large alligator. ) Apparently, people with pythons as pets have been getting rid of this snakes when they get too big by dumping them in everglades and in 2003 biologists confirmed the presence of breeding population of this slithering (serpents巨蟒 in Everglades National Park). Which sceeves ？me out, because I spend a lot of time there. I am not afraid of timid alligators, but hungry (Burmese pythons)gives me (willies心惊肉跳). Anyway, the US （Geological Survey ）recent did a analysis of potential (temperatures around the) country by the end of this century. And then analyzed whether the Burmese pythons will be comfortable, based on their (home) territory, from Pakistan to (Indonesia). The result: pythons could colonize a third of the US. Did I mention that they can be 20 feet long and 250 pound might be the best motivation to do something of climate change.
听写稿！~ 14.The lure of gold can be electric to some people, even though the element is chemical inert on the large scale. But researchers from (Georgia Tech) report that , down (at) the level of atoms, gold can conduct electricity and can act as insulator as well. When an oxygen molecure (embedded) into six (atom-long) gold wire, the wire can conduct electricity. But when the wire is longer than six atom, the (oxygenated) gold becomes an insulator. The scientists reported (their) discovery in the journal physical review letters. The researchers say (these) properties mean that gold wire(nanowires纳米线) might be used as sensors to detect motions in (nanoscale纳米级) situations, such as (neurons or nanomachines). (Futuristic未来派的devices built from individual atoms that might enter cells and fight disease). The wire could be a (sensor传感器) because when it's extended (even) slightly, it (could) switch from a conductor to an insulator. Using gold as (sensor) in this way could never have been predicted from what is known about gold and bulk, but being very small can lead to very big changes.
-- by 会员 ashlie888 (2011/10/19 23:28:45)
今天听了14,听完两遍后知道gold在某个条件下,可以conduct electricity也可以insulate.但这几句就没听清楚了.The researchers say these properties mean that gold wire nanowires纳米线 might be used as sensorsto detect motions in nanoscale纳米级 situations, such as neurons or nanomachines.Futuristic devices built from individual atoms that mightenter cells and fight disease.发现自己一遇到生词,就lost.
17.Warp of the Worlds Widely distributed emails claim--falsely--that Mars will get close enough to Earth to appear as large as the moon. Steve Mirsky and Orson Welles report. -------------------- Audio clip of Orson Welles: “That grinning露齿而笑, glowing, globular闻名世界的 invader of your living room is an inhabitant of the pumpkin patch. And if your doorbell rings and nobody’s there, that was no Martian—it’s Halloween.” That’s how Orson Welles ended his Mercury Theater version of HG Well’s War of the Worlds on October 30, 1938. The broadcast was designed to sound like live news coverage of an invasion of Earth by Martians. And a lot of people fell for it. Now there’s some more Martian misinformation fooling folks. This one’s not so scary. A lot of people are getting email claiming that in the next few weeks the planet Mars will get close enough to the Earth so that it will appear to be about the same size as the moon. Our friends at Sky and Telescope magazine report that email dating back to 2003 mentioned that in a 75times magnifying telescope Mars would look about as big as the moon does—to the naked eye. Somewhere along the line the telescope part got lost. So don’t worry. Mars, even at its closest, is still small and safely far away. Welles: “It’s Halloween.”
17.听写稿 "That (grinning露齿而笑), (glowing容光焕发),(globular全球的)invader of your living room (is an inhabitant of the ) pumpkin patch. And if yourdoorbell rings and nobody there. That was no Martian--,it's Halloween." That's(how Orson Welles ended his) Mercury theater version of HG Well's War of the worlds on Oct.13, 1938. The broadcast was designed tosound like live news coverage of the invasion of earth by Martians.And a lot of people fell for it(易受骗上当，轻易相信).
Now there's (some more)Martian misinformation (fooling folks).. This one's not so scary. A lot of people are getting emailclaiming that in the next few weeks the planet Mars will get close enough to the earth. So that it will appear to be about the samesize as the moon.Our friends at Sky and Telescope Magazine reported that email dating back to 2003mentioned that in a 75times magnifying telescope Mars would look about as big as the moon does- to the nakedeye. Somewhere along the line the telescope part got lost.So don't worry,Marts, even(at its closest), isstill small and safety far away."It's Halloween."
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erhaps you’ve seen the famous photo of a python ripped apart by its efforts to ingest a large alligator. Apparently people with pythons as pets have been getting rid of the snakes when they get too big by dumping them in the Everglades. And in 2003, biologists confirmed the presence of a breeding population of the slithering serpents in Everglades National Park. 
发表于 2011-10-23 02:07:38
