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[托福阅读] 新托福阅读材料:七夕节期间,英仙座流星雨光临地球

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发表于 2012-8-14 23:21:39 | 显示全部楼层 |阅读模式
“一起去看流星雨”是很多年轻情侣的浪漫选择,在中国传统情人节“七夕”来临前夕,英仙座流星雨光临地球,希望能度过甜蜜节日的朋友们一定不要错过喔!  
! r% M* y* v$ r9 d0 v  Sky-watchers could be in for "fantastic views" over the next two days as the Perseid meteor shower reaches its peak.
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  According to Nasa, the shower could produce a display of up to 80 meteors per hour.
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, g' n& e* H: T% O  r' m' T  "A waxing crescent moon will set before the shower becomes active, setting a perfect stage for meteor watching," said the US space agency on its website.' i: U+ a# C& f' e) `* D; J
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  Experts are urging people to head away from city lights for the best views.
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& G) w2 w. _2 E1 J5 w4 J$ x; S  John Mason from the British Astronomical Association (BAA) told BBC News: "Weather-permitting, we should be in for a very good show across the UK.
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  "The shower has been ongoing for a week now and we have already seen some very bright meteors whizzing overhead.", f5 h3 ]3 v5 i3 I# q+ Q: f

+ G! M7 t& m8 `: p& W/ @, Y  The Perseid meteor shower is caused by debris from the comet Swift-Tuttle.
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6 @  E! R8 {9 O% N  Every 133 years, the huge comet swings through the inner part of our Solar System and leaves behind a trail of dust and gravel.0 U; c' l9 a, s; T  D5 l! c" F4 F* O
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  When Earth passes through the debris, specks hit our atmosphere at 140,000mph and disintegrate in flashes of light.! N' F" i; A. w6 Y9 |
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  The Royal Astronomical Society (RAS) said the relatively warm summer nights would make this meteor shower one of the more comfortable to watch.4 l( X  ]5 z9 Q7 _

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The annual display is caused by debris from the comet Swift-Tuttle  - }% F9 P9 `! b, I8 u9 Z7 k4 @9 d
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& t$ d0 t$ z4 f9 Q6 c% \  * The meteors are called the Perseids because they appear to fly out of the constellation Perseus
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  * The yellow dot marks the Perseid radiant. The meteors can appear in any part of the sky, but all of their tails will point back to there8 _- Y1 y9 s$ g4 ]( w" u8 Q0 n
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  * The best views of the meteor shower are likely to be in the Northern Hemisphere
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