新托福听写训练 第16期

（单词翻译）

Listen to a conversation between two students.

W:I think you would have enjoyed my geology class this morning.

M:Don't betbeg on it, I've never caredhear much about rocks.

W:But you do care about dinosaurs¹ I recall and today we discuss the geological evidence about what maymakes have killed off the dinosaurs at least here in North America.

M:Oh, sure, they got hit by a comet or something, I think.

W:Well, yeah, about 60 million years ago, a huge comet did crash into the earth down in Mexico and it plowedproduced out as an enormous crater² over a hundred miles acrossa clock.

M:And that's what why deathdoes the dinosaurs, right?

W:Well, it was not exactly the impact itself but what happened right afterward³.

M:You see researchers figured out from the shape of the crater

that's the comet must be coming in pretty low across Atlantic and so right after the impact a huge cloud of fire river? must swept clear across the north America, all in just a few minutes. And that what probably kill off not just the dinosaurs, but a lot of different species of plants and animals.

M:Amazing.

W:Yeah, and even 2000 miles from the impact, plants would have been burst in the flames.

M:And the fire that intense mustmostly destroy just about everything.

W:Well, above ground anyway.

M:Above ground? Say, I wonder if it that to explain why the dinosaurs were all disappeared but other animals like maybe small mammals living underground managed to survive.

W:Make sense, anyhow later on the tons of dusts that thrown away out into the atmosphere may have caused some global climate changes, so eventually the comet probably affected⁴ the plants and animals species all around the world but nowhere as much as the north America.