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托福阅读：大海啸Megatsunami

2016-05-02 16:36:00来源：网络

　　为了帮助大家学习托福阅读背景知识，更快提高托福阅读成绩，新东方在线托福网为大家带来托福阅读：大海啸Megatsunami一文，希望对大家托福备考有所帮助。更多精彩尽请关注新东方在线托福网!

　　Scientists Debate Evidence of Ancient Megatsunami

　　Reading Passage

　　By

　　Michael Casey, for National Geographic

　　Try to read the passage first, and then check if you understand the chosen words and sentences well.

　　For nearly a decade, geologist Dallas Abbott and her colleagues have been trying to prove that an enormous space rock, possibly an asteroid, smashed into the Indian Ocean about 10,000 years ago and created a megatsunami, a set of giant waves that washed over the east coast of Africa. Such a tsunami could have created waves as high as 300 feet (91 meters)—three times larger than the Indian Ocean tsunami in 2004 that left 230,000 dead.

　　Words:

　　Enormous adj. 巨大的

　　Asteroid n. 小行星

　　Smash v. 猛撞

　　Megatsunami n. 大海啸

　　Sentence:

　　Such a tsunami could have created waves as high as 300 feet (91 meters)—three times larger than the Indian Ocean tsunami in 2004 that left 230,000 dead.

　　这样的海啸能够制造300英尺的波浪(91米)，是2004年造成230,000人死亡的印度洋海啸的三倍之多。

　　The proof, Abbott contends, lies in sandy wedge-shaped features called chevrons in Madagascar, as well as what might be a deep ocean crater between Madagascar and Australia. The idea is that either a huge impact, or a large landslide from a volcano on the island Réunion, sparked the tsunami that created the chevrons.

本文关键字: 托福阅读 托福阅读背景知识

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