2017年英语六级听力临考冲刺

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2017年英语六级听力临考冲刺

　　part 1

　　The Biggest Magnet

　　最大的磁体

　　A: What's the biggest magnet ever?

　　究竟什么是最大的磁体?

　　B: Well, that's a great question. Well, for starters you'd have to mention whoppers like the hybrid magnet at the National High Magnetic Field Lab in Tallahassee, Florida.This magnet weighs thirty-four tons and stands twenty-two feet tall.Giant magnets in hospitals, physics labs, and other facilities help in cutting edge research. However, even a magnet the size of a building can't compete with a magnet the size of a planet.

　　嗯，问得好。对于初学者来说，不得不提一下那些庞然大物，比如佛罗里达塔拉哈西的国家高磁场实验室的混合磁体。这块磁铁重34吨，立起来有22英尺高。医院，物理实验室和其他设备里的巨型磁体对尖端研究有帮助。然而，即使是一块建筑物大小的磁体也不能和一块行星大小的磁体相匹敌。

　　A: A magnet the size of a planet?

　　一块行星大小的磁体?

　　B: The Earth itself is a magnet! Researchers think it's the effect of convection currents in our planet's molten interior that causes the entire Earth to behave as one gigantic magnet, with a North and South Pole.Whenever you look at a compass, what you're doing is reading the magnetic field of the planet on which you are standing.

　　地球本身就是一块磁体。研究者们认为，是地球内部熔岩里对流流的作用使得整个地球像个拥有南北磁极的巨型磁体一样运转。每当你看着指南针的时候，你所做的就是读取你所在行星的磁场。

　　A: So that must be the biggest magnet than anywhere.

　　所以那就是最大的磁体咯。

　　B: Yet, even a magnet the size of a planet can't compete with a magnet the size of a star.

　　但是，即使是行星大小的磁体也不能和恒星大小的磁体相匹敌。

　　A: A star?

　　恒星?

　　B: what about the sun? The sun is a magnet. In this case, the magnetic field is probably generated by swirling plasma. Magnetic storms on the sun are powerful enough to have an effect on satellites and communication systems all the way here on Earth.

　　比如说太阳?太阳是一块磁体。假若这样，磁场可能是由旋动的等离子产生的。太阳上的磁暴威力足够强大，可以对人造卫星和地球上通信系统的各个方面产生影响。

　　A: So is that?

　　那就是最大的了?

　　B: Not even close. There are things in space that put all of these magnets to shame.

　　还差得远呢。宇宙中还有更多让这些磁体相形见绌的事物呢。

　　A: Super magnet in space? What are they?

　　宇宙中的超强磁体?是些什么呢?

　　B: Next time.

　　下次再说吧。

　　part 2

　　Scoop That Poop

　　我好“无辜”的

　　Actually, dog poop turns out to have a pretty big environmental impact. If you think that two in five households in the U.S. have at least one dog and that about forty percent of Americans don't clean up after their pooches, well, all that poop really adds up. In fact, it's what scientists call the Fido hypothesis.

　　狗狗便便严重污染环境。如果美国2/5家庭就养一只狗狗且当中大约40%的`主人不收拾狗狗的便便。所有这些便便加起来也就是科学家说的“狗狗”假说。(Fido是对狗狗通用的称呼)。

　　Hey, my dog's name is Fido.

　　我的狗狗就叫Fido。

　　They conjecture that a lot of that waste ends up in waterways. Recent studies, in fact, suggest that dogs are in third or fourth place on the list of contributors to bacteria in water. Talk about gross—fecal matter is full of disease-causing bacteria like E. Coli, salmonella, and giardia.

　　科学家推想，水道阻塞的罪魁祸首就是这些便便。近日有研究表明，造成水里滋生细菌的“元凶”狗狗排第三或第四。令人作恶的这些细菌可以致癌，比如：大肠埃希菌、沙门氏菌、鞭毛虫

　　Now that bacteria-tracking methods have gotten better, scientists estimate that in some areas, 20 to 30 percent of the bacteria in a stream comes from dogs.

　　细菌源追踪技术的日臻完善，科学家估计，部分地区20%到30%的细菌是由狗狗造成的。

　　Really? That can't be good!

　　真的吗?那可不妙!

　　And the thing is, pollution from dogs is relatively easy to control. All you have to do is scoop when they poop.

　　其实，狗狗造成的环境污染相对来说很容易避免，你需要做的只是在将狗狗的便便铲干净。

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