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[科学美国人60秒] 【整理】SSS 2009-01-09

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[科学美国人60秒] 【整理】SSS 2009-01-09

SSS 2009-01-09

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Tune in every weekday for quick reports and commentaries on the world of science-- it'll just take a minute.


A study in the journal Science finds that mosquitoes checking out mates synchronize their buzzing to the same frequency. Researchers hope to exploit this behavior for insect control. Karen Hopkin reports




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【整理】SSS 2009-01-09【整理人】ivyxk

 

Transcript

 

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

 

Have you ever turned off your lights and heard [mosquito buzz]? To you it’s a sound that signals bites in the night. But to a male mosquito it’s a love song, produced by a female seeking a mate. Now scientists from Cornell University find that males who answer that call join in the serenade. And the two sing in harmony as they check each other out. [Mosquitoes buzzing.]

Working with Aedes aegypti mosquitoes—the pests that carry dengue fever—the scientists tethered individuals to a special insect pin and allowed them to fly past a potential mate. They found that females on their own whine at a frequency of 400 Hertz. Whereas single males buzz at about 600. But when the two come together, they perform a duet in which the beat of their wings reaches a frantic1200 hertz. [Tone.] Isn’t it beautiful? Mosquitoes seem to think so. Which is a surprise, because researchers had previously thought that female mosquitoes were deaf. But the Cornell scientists found that mosquito ears are good up to 2000 hertz, results published in the January 9th issue of Science. Maybe that harmonizing could be exploited for controlling mosquito populations. Releasing into the wild males that can’t sing could be a real buzz-kill.

 

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

 

[ 本帖最后由 ivyxk 于 2009-1-11 15:31 编辑 ]

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homework

This podcast is brought to you by Scientific American's instinct egghead guide to the mind. For more information, go to instinct egghead.com.
    This is Scientific American's 60-Second Science. I am Karen Hopkin, this will just take a minute.
    Have you ever turned off your lights and heard... ? To you it's a sound that signals bits at night, but to male mosquitoe, it's a love song, purduced by a female seeking a meet. Now scientists in Cornell University find males who answer that call join in the /. And the two sing in harmony is they check each other out.
    Working with Aedes aegypti mosquitoes---the pests caryy degue fever,the scientists /  individuals to a special insect  pin and allowed them to fly past the potential mate. They found females on their own, why? a frequency of 400 Hertz , while single males buzzed about 600, but when the two come together, they perform /  and which bit their wings reach a / 1200 Hertz. Isn't it beautiful? Mosquitoes seem to think so, which is surprise because reaserchers previously thought that female mosquitoes were deaf. But the Cornell scientists found mosquitoes are good to up 2000 Hertz. Results published in the January 9th of Science. Maybe that harmonizing could be explored for controlling mosquitoe populations, releasing  into the wild male that can't sing could be a real buzz kill.
   Thanks for the minute, for Scientific American's 60-Second Science, I am Karen Hopkin.
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  • ivyxk

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HOMEWORK

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

 

Have you ever turned off your lights and heard "~~". To you it's a sound that signals bites in the night. But to a male mosquito it's a love song produced by a female seeking a mate.

 

Now scientists from Cornell University find that males who answered that call joined in the serenade. And the 2 singing harmony is they check each other out.

 

Working with 80 Egypt type mosquitoes who could pass the dengue fever, the scientist tabbed the individual to a special insect pin and allow them to fly pass to a potential mate. They found that females on the road whined a frequency of 400 hertz, while single males buzzed about 600. But when the 2 come together, they perform a duet, which the beat of their wings reaches a frantic 200-hertz :”~~”. Isn’t it beautiful? Mosquito seemed to think so, which is a surprise because researchers have previously thought that female mosquitoes were deaf. But the Cornell scientists found that mosquito ears are good up to 2,000 hertz.

 

Results published in the January 9th issue of Science. Maybe that harmonizing could be exploited for controlling mosquito population. Releasing into the wild, males that can sing could be a real buzz kill.

 

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

[ 本帖最后由 Ceque 于 2009-1-10 11:30 编辑 ]
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明日の笑顔をだすために頑張ります
实现无障碍英语沟通

ON hrbinwz

This podcast is brought to you by Scientific American's instinct egghead guide to the mind. For more information, go to instinct egghead.com.

    This is Scientific American's 60-Second Science. I am Karen Hopkin, this will just take a minute.

    Have you ever turned off your lights and heard? To you it's a sound that signals bits in the night, but to a male mosquito, it's a love song, produced by a female seeking a mate. Now scientists from Cornell University find that males who answer that call join in the serenades/. And the two sing in harmony as they check each other out.

    Working with eighties of JIB-tie mosquitoes---the pests carries dengue fever, the scientists tad/ individuals to a special insect pin and allowed them to fly past the potential mate. They found that females on their own, while need a frequency of 400 Hertz, while single males buzzes about 600, but when the two come together, they perform /dune wad, and which the bit of their wings reaches a frantic 1200 Hertz. Isn't it beautiful? Mosquitoes seem to think so, which is a surprise because researchers are previously thought that female mosquitoes were deaf. But the Cornell scientists found that mosquito ears are good to up to 2000 Hertz. Results published in the January 9th issue of Science. Maybe that harmonizing could be explored for controlling mosquito populations, releasing into the wild males that can't sing could be a real buzz kill.

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

 

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  • ivyxk

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on sunshake

This Podcast is brought to you by Scientific American's Instant Egghead Guide to the Mind. For more information, go to instantegghead.com.

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

    Have you ever turned off your lights and heard (buzz)? To you it's a sound that signals bites in the night, but to a male mosquito, it's a love song, produced by a female seeking a mate. Now scientists from Cornell University find that males who answer that call join in the serenade/. And the two sing in harmony as they check each other out.

    Working with Aedes Egypt type mosquitoes---the pests that carry dengue fever, the scientists tethered individuals to a special insect pin and allowed them to fly past a potential mate. They found that females on their own whine in a frequency of 400 Hertz, where single males buzz at about 600. But when the two come together, they perform a duet in which the beat of their wings reaches a frantic 1200 Hertz. Isn't it beautiful? Mosquitoes seem to think so, which is a surprise because researchers had previously thought that female mosquitoes were deaf. But the Cornell scientists found that mosquito ears are good / up to 2000 Hertz, results published in the January 9th issue of Science. Maybe that harmonizing could be exploited for controlling mosquito populations, releasing into the wild males that can't sing could be a real buzz-kill.

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

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  • ivyxk

http://my.putclub.com/?329870

New Words

synchronize:  v. 使合拍

 

serenade: n. 小夜曲

 

duet: n. 二重奏

 

tether:  v.系

 

frantic: adj. 狂乱的,疯狂的

 

whine: vi. 发呜呜声

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  • ivyxk

爱听写,爱英语,爱生活!

HW:

This is scientific American 60-second science. I am Karen Hopkin. This will just take a minute.

Have you ever turned off your lights and heard? To you it sounds a signal of bites at night. But to male mosquito, it’s a  love song, produced by female seeking a mate. Now scientists in Cornel  University find male should answer that call joining at 78  . and two sing in the harmony and they check each other out. Working with 80 mosquitoes, the pests carry fever . the scientists telling the   individuals to special insets pin and allow them to fly pass to potential mate . they found the female on the role while need a frequency of 400hz. While single males buzz by 600hz. But when two come together they perform to which beat their wings to reach 1200hz. Isn’t it beautiful? Mosquitoes seem to think so. Which is a surprise because researchers previously  thought  female mosquitoes were deaf. But Con found that mosquitoes were good up to 2000 hertz. Results published at January 9th issue of Science . Maybe that harmonizing could be exploited for controlling mosquito populations. Releasing to the wild male can think it could be a real buzz kill.

Thanks for the minutes for 60-second science. I’m  Karen Hopkin.

 

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  • ivyxk

实现无障碍英语沟通

On fine711

 

This Podcast is brought to you by Scientific American's Instant Egghead Guide to the Mind. For more information, go to instantegghead.com.

 

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

 

    Have you ever turned off your lights and heard (buzz)? To you it's a sound that signals bites in the night, but to a male mosquito, it's a love song, produced by a female seeking a mate. Now scientists from Cornell University find that males who answer that call join in the serenade. And the two sing in harmony as they check each other out.

 

    Working with Aedes aegypti type mosquitoes / the pests that carry dengue fever, the scientists tethered individuals to a special insect pin and allowed them to fly past a potential mate. They found that females on their own whine in a frequency of 400 Hertz, whereas single males buzz at about 600. But when the two come together, they perform a duet in which the beat of their wings reaches a frantic 1200 Hertz. Isn't it beautiful? Mosquitoes seem to think so, which is a surprise because researchers had previously thought that female mosquitoes were deaf. But the Cornell scientists found that mosquito ears are good up to 2000 Hertz, results published in the January 9th issue of Science. Maybe that harmonizing could be exploited for controlling mosquito populations. Releasing into the wild males that can't sing could be a real buzz-kill.

 

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

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  • ivyxk

普特听力大课堂

on transcript 不太确定,请版主指正

Transcript

 

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

 

Have you ever turned off your lights and heard [mosquito buzz]? To you it’s a sound that signals bites in the night. But to a male mosquito it’s a love song, produced by a female seeking a mate. Now scientists in Cornell University find that males who answer that call join in the serenade. And the two sing in harmony as they check each other out. [Mosquitoes buzzing.]

Working with Aedes aegypti mosquitoes—the pests that carry dengue fever—the scientists tethered individuals to a special insect pin and allowed them to fly past a potential mate. They found that females on their own whine at a frequency of 400 Hertz. Whereas single males buzz at about 600. But when the two come together, they perform a duet in which the beat of their wings reaches a frantic1200 hertz. [Tone.] Isn’t it beautiful? Mosquitoes seem to think so. Which is a surprise, because researchers had previously thought that female mosquitoes were deaf. But the Cornell scientists found that mosquito ears are good up to 2000 hertz, results published in the January 9th issue of Science. Maybe that harmonizing could be exploited for controlling mosquito populations. Releasing into the wild males that can’t sing could be a real buzz-kill.

 

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

 

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  • ivyxk

爱听写,爱英语,爱生活!
好栏目推荐之美国口语俚语

Homework

Karen

 

Have you ever turned off your light and heard (ning….)? To you it sounds like signals bat in the night, but to male mosquito, it is a love song, produced by a female seeking for a mate. Now scientists from Cornel University found that male soon answer that call join in its ear’s aid and the two singing in harmony is checking each other out. Working with eighty Egypt mosquito, (the pasty dangling favor), the scientist tether individuals to a special insect pin, and allow them to fly pass the potential mate, they found female on (the roan wine) in a frequency of 400 HZ, while single males buzzes about 600, but when the two come together, they perform a dual wide in which the speed of their wings reaches the front of 1200 HZ. Isn’t it beautiful? mosquito seems think so, which is a surprise because researchers previous thought that a female mosquito were deaf, but Cornel scientist found that mosquito ear are good up to 2,000 HZ, the result published in Jan 9 issue of journal of science, maybe that harmonizing could be exploited for controlling mosquito populations - really sing into the wild, males that can’t sing could be a real buzz kill.

 

 

Serenade          n (尤指男子在所爱慕的女子窗外唱的或演奏的)   小夜曲

 

 

 

 

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Homework 第一次听写,还望各位前辈不吝赐教

This is Scientific Americians 60 second science, I'm Karen Hopkin. This will just take a minute. Have you ever turned off your lights and heard…to you it's a sound signals bitten at night but to male mosquito, it's a / sound, produce by a female, seeking a mate, now // university find males to answer the call joining in a serenade and to sing in the harmony, they check / out. Working with 80 / mosquitos, ////. The scientists tethered the individuals to a special insect pan, and allowed them to fly past their potential mate. They found the females on the row whine / the fruquency of 400Hz while a single male buzzed about 600Hz. But when the two come together, they perform duet in which they bit their wing which is 1200Hz, isn't it beautiful? Mosquitos seem to think so which is surprise, because researchers previously thought that female mosquitos were deaf, but // just found the mosquito is good up to 2000Hz. Results published in January 9 the SCIENCE. Maybe that could be exploited for controlling mosquito population. Releasing into the whine male / sing can be a real buzz kill.
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hw

this is Scientific Americans 60-second Science. I'm //. Just take a minute. Have you ever turned off your lights and heard.To you, it's sounds like a singal to bite in the night, but to male mosquito, it's a love song, producing by the female seeking a mate, mow scientific corner University find male answer the call join in seven and eight, and the two sing in harmony is the check each other out. Working with 80 jepodize mosquitos for the past decades //. Scientists take the individules to special insect pain, and allowed them to fly past to potential made. They find the female is under//, why the frequency of 400 hurts, while single males buzzled about 600, but when they two come together, they perform it well in which they beat them wings which is // 112 hurts, isn't beautiful? Mosquitos seems to think so which is a surprise because researchers has previously thought the female mosquitos are deaf. But the Corner side just found the mosquitos as 2000 hurts, results was published in January // Science. Maybe the harmonization could be explored for controlling mosquitos' population, really //// Thanks to the moment, for scientific ameicans 60-second science.I'm//
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每天半小时 轻松提高英语口语

Homework

 

Have you ever turned off your lights and heard? To you it's a sound of signals of being bitten at night but to a male mosquito it's a lot of sounds produced by a female seeking a mate. Now Scientists in Cornel University find that male who answers the call joining the CNA. And two sing in harmony which is in checking each other out. Working with eight Egyptian types of mosquitoes the past fever, the scientists set an individual to a special insect pain which allow them to fly past the potential mate. They found females on their own. Why their frequency was 400 hertz while a single male buzzed about 600? But when the two come together they perform well in which beating their wings with the frequency of 500 hertz. Isn't it beautiful? Mosquitoes seem to think so which is a surprise because researchers previously thought the female mosquitoes were death. But the Cornel side has found mosquito is good up to 2000 hertz, result publishing on the January of Nets and Science. Maybe that harmonizing could be explained for controlling mosquito populations. Releasing into the wild, males that can sing could be a buzz-kill. 

[ 本帖最后由 joy_hyde 于 2009-1-13 12:44 编辑 ]
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Have you ever turned off your lights in herz? Do you with the sound singles biting in the night between male mosquito. It is a lovely song produced by a female seeking a mate. Now scentists in Kolon university find the male who answer that call joining the seronide. And two things in harmony is that they check each other out. Working with 80s Gyptine mosquitoes the pest carried degeur fever. The scentists tethered individuals to a special insect?, and allow them fly pass substantial mate. They found the females under row why need the frequency of 400 herz while single male buzz a 600 herz. When the two come together they perform ?? in which they beat their wings in frequency of 1200 herz. Is it beautiful? Mosquitoes think so. Which is suprising, because reseachers previously thought female moquitoes were deaf. But the Kolon scentists found mosquito ? good upto 2000 herz. Result published in January National Science. Maybe that harmonizing could be exploited for controlling mosquito population. Releasing into the world, males that can sing could be a real mosquito.
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口译专员推荐—>口译训练软件IPTAM口译通

Homework

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

 

Have you ever turned off your lights and heard...
To you it sound that signals bite in the night, but to a male mosquitoe it's a love song, produced by a female seeking a mate.

 

Now scientist from University find that males who answer that call join in the cerenaid. And two sings in harmony as they check each other out.

 

Working with eighty jeopardize mosquetoes, the past that carry dengue fever-- the scientist tethered individuals to a special insect pin  and allowed them to fly past a potential mate. 

 

They found that females on their own at a fequency of 400 Hertz. While single males buzz at about 600.

But when the two come together, they perform a duet in which the beat of their wings reached 1200 Hertz.


Isn't it beautiful? Mosquitoes seem to think so.
Which is surprise because researchers had previously thought that female mosquitoes were deaf.

But the scientists found that mosquitoe ears are good up to 2000 Hertz, results published in the January 9th issue of Science.

 

Maybe their harmonizing could be exploit for controlling mosquitoe populations.

Releasing into the wild males that can't sing could be a really buzz kill.

 

Thanks for the minute for Scientific American's 60-second Science. I'm Karen Hopkin.


 

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