Scientific American 60 Second Science听抄（有音频文件）

EHSSSUID: 2348947

August 14th

Based on 永夜の翼

Mongoose-python fights get all the ink. But here in the U.S., it’s squirrels and rattle snakes that have a noteworthy and tempestuous relationship. One might even call the interaction ‘heated’, literally. Because researchers have discovered that California ground squirrels heat their tails up as a signal to rattle snakes to keep away from baby squirrels. The report is on the proceedings of the Natural Academy of Sciences. Squirrels wave their tails at snakes to appear bigger and ticked-off. And it was known that squirrels wave their tales more vigorously in the dark than in daylight, while rattle snakes can sense infrared radiation -- AKA heat. So, researchers used an infrared camera to record squirrel-rattle snaking counters. They also recorded face-offs between squirrels and gopher snakes which cannot sense heat. And they found that the squirrels heated up their tails somehow when dealing with rattlers, but squirrels didn’t bother to turn on the heat when wave their tails at gopher snakes.So a heatable tail seems to allow squirrels to say to rattlers “Move along, things for your here are too hot.”

wlxzmUID: 2292462

我下的听力文件怎么没有完啊?只有51秒,你们的三分之一 都没有啊?

wlxzmUID: 2292462

郁闷了,为什么你们下载的是完整的,我的只有三分之二?

Mongoonse-python fights all the ink. But here in the U.S squirrels and rattle snake that have noteworth and tempestuous relationship. One might even call the relationship "heated", literally. Because researches have dicover that California groud squirrel heat their tail up as a signal to snakes that to keep away from the baby squirrrel. The report on the proceeding of the National Academy of Science. Squirrels wave their tails at snake tto appear bigger and ticked off and was know that squirrels wave their tail more vigorously in the dark than in
day light. While rattle snake can sense infrared rediation AKA-heat, so researchersuse the infrared camera reccord squirrel -rattle snake
encounters. They also reccord face-off between squirrel and 没有了:funk:

tjlstlove26UID: 2319674

总听着tempestuous前面还有一个音，ms是in...大家有同感吗？

zhenzhen_163UID: 196150

You might say I am nitpicking, but if you are practicing top-down processing (See my other posts listed below: 正确听力方法请参见724，698，635搂). This is something worth pointing out.

Squirrels wave their tails at snakes to appear bigger and ticked-off. And it was known that squirrels wave their tales more vigorously in the dark than in daylight. (At this point, Steve finishes presenting two facts about the squirrel.)

(Now he goes on to introduce a fact about the snake. The sound “well” serves as a pause, punctuating the speaker’s intention to talk about something new.) Well, rattle snakes can sense infrared radiation -- AKA heat.

Grammatically, “while” is also correct. But the flavor and organization of the text would not be exactly the same; and that was not what Steve said.

[ 本帖最后由 zhenzhen_163 于 2007-8-15 12:50 编辑 ]

zhenzhen_163UID: 196150

“noteworthy and tempestuous” in spoken English becomes “noteworthy n’ tempestuous”.   :)

naringeninUID: 2123535

nascar racing on TV now offers view the drivers can never get, new software allows the viewers to see the air flows around the speeding cars in real time. university of washinton computer scientist have developed software that simulate the way fire and smoke behavier in real time, for training simulations for fire fighters and for more realist vedio games. But one application is around nascar called draf truck , the technology was used to generate the amigy of air flow for the first time in the late July, for the all state four hundred nascars in the airports, draf truck calculate the air flow over the speeding cars, and displace it as green, blue yellow or red streams behind the vehicals, the  colors represent different speeds and directions of air flow when two or more cars approach each other, the idea is for the view of visual feel for drafting, the strage of tarking in behind another car riding efficiently in the slip stream. drafting let drivers pick up speed and save fuel, afer which they can rarely rare out.

wensonfuUID: 2318700

Aug 15


Nascar racing on TV now offers view the drivers can never get, new software allows the viewers to see the air flows around the speeding cars in real time. university of washinton computer  scientists have developed software that simulate the way fire and smoke behave in real time,   for training simulations for fire fighters and for more realist vedio games. But one application (有个词没听出来??) is nascar called draf truck , the technology was used to generate the images of air flow for the first time in the late July, for the all state 500 nascars in the Indianapolis, draft truck calculate the air flow over the speeding cars, and displace it as green, blue yellow or red streams behind the vehicles, the  colors represent different speeds and directions of air flow when two or more cars approach each other, the idea is for the viewer to get a visual?? feel for drafting, the strategy of taking?? in behind another car riding efficiently in the slip stream. drafting let drivers pick up speed and save fuel, after which they can really air it out.

[ 本帖最后由 wensonfu 于 2007-8-15 15:55 编辑 ]

zhenzhen_163UID: 196150

Someone asked me a very good question. I thought I would share it with everyone.

我看了你发的那几个帖子了，确实很有道理，仔细想想，在听60－second时除了第一遍听大概意思外，以后，完全在抠每个字，每个词。而且有种如果这篇文章全听不下来就怎么样怎么样的想法。可是，现在我的状态是，明白了你的意思，但是却不知道现在到底该怎么听听力了？我理解你的意思是，一段听力，先按你的abc做法做完后，觉得这篇文章不错，值得学习，比如有些词汇啊，句子结构很好的话，可以听抄，其他的就直接看全文了。然后，从原文中总结词汇还有其他东西？？是这样吗？但是其实，不听抄的话，总觉得自己没有听懂。你觉得呢？希望你能给我提些意见啊期待中。。。。


The core training in listening exercise is to grasp the spoken material in the first round. You have only one chance to do it. Try to understand as much as possible using your top-down processing power. You repeat this step with different topics and materials (not with the same recording) and gradually you will see improvement in your listening ability. And thanks to the internet, there is an endless supply of listening materials out there waiting for you.

The improvement comes about because 1) you get better at using top-down processing skills and 2) your vocabulary and knowledge increase over time as you continue with listening practice and other English studies. You said “不听抄的话，总觉得自己没有听懂” This is not a problem; just try to get used to it for now. As your listening prowess increases, one day you will start wondering why you don’t have this feeling anymore.  :)

There is very little benefit to be gained by listening to a recording repeatedly. Perhaps it is ok to replay it a few times if you think you have missed something. But replaying it multiple times just to figure out a specific word is a waste of your time because that word should have been obvious to you if you’d had the knowledge and the top-down skills to begin with. Your time would be better utilized in acquiring knowledge and vocabulary, in reading for example. Unfortunately, many people here were duped into thinking they were engaged in meaningful learning by listening to the recording a zillion times.

One way to increase your listening exercise efficiency is to do some pre-listening reading. Try to google the internet and find the background information on a specific topic. (Liucirong does this every time; I just hope he reads the article first before he listens.) Get all the key words and concepts first. Once you are armed with the necessary background knowledge, you can then move on to the task of listening. This is not cheating. In all modern English textbooks, you will see pre-listening activities. This is the right way to learn to listen.  

[ 本帖最后由 zhenzhen_163 于 2007-8-15 16:23 编辑 ]

naringeninUID: 2123535

我觉得听抄得意义在于增加你的听力词汇，这是一种增加听力能力得方法，一些词看着简单，但是自己得发音差和那些听到得标准得不一样，通过听抄，掌握更多得听力词汇，增加自己对发音和意义之间得反应强度，不失一个从基本上提高自己得听力能力得方法。虽然你说的abc对托福做题有点用处，但是觉得不如从根本上提高自己得听力能力来得好。个人认为听抄不是说玩玩得，还是有比较大得用处得，如果懒得话，看着正确得文章听也是很不错得，也比听抄节约时间。

[ 本帖最后由 naringenin 于 2007-8-15 16:36 编辑 ]

zhenzhen_163UID: 196150

There is an article on ESPN about Draft Track. Read it and you will find all the answers.  :)

http://www.boston.com/sports/articles/2007/07/27/espns_coverage_will_air_it_out/

And by the way, read up on the backgroud info everytime before you listen. This will help you develop good listening skills.

[ 本帖最后由 zhenzhen_163 于 2007-8-15 19:00 编辑 ]

zhenzhen_163UID: 196150

You seemed to be opposing my views but the support and examples you gave actually supported my views. The training of discerning phonemes, word endings, stress, intonation, reduction, etc. is “bottom-up” while acquiring vocabulary and knowledge for subsequent rounds of listening practice is “top-down”.   :)

To clarify my views, and perhaps risking further confusing you, let me just say these SA clips are useful in listening training if used properly. However, dictation is not very useful unless you are training to become a stenographer. Dictation is an outdated method for listening training. If it was so good, you would still be able to find it in many respectable English textbooks. But you can’t. The only good I see so far is that this so-called “dictation” thread has inspired a lot of people to attempt to “understand” (objective of the “top-down” training) the SA clips and provides a central repository for people to show their understanding of the clips.

Nowadays, there are much more sophisticated and efficient techniques—top-down and bottom-up process training, particularly top-down—for training students on listening and that is what I have been telling people here. The “a, b, c” part of my post is merely talking about the listening exercise for the TOEFL. But did you see my other posts about listening training in general?

:handshake

永夜の翼UID: 2380499

原帖由 zhenzhen_163 于 2007-8-15 12:45 发表
You might say I am nitpicking, but if you are practicing top-down processing (See my other posts listed below: 正确听力方法请参见724，698，635搂). This is something worth pointing out.

Squirre ...

THX
的确这里WELL会比较好.已修正
THX!^_^