Hints： Kalahari meerkat Celsius scorpion

Living underground, mole rats are sheltered from the Kalahari's worst extremes of temperature. We think of deserts as hot places. But nightly temperatures can fall well below zero.
At dawn, meerkats need to soak up the warmth of the rising sun to get fully active. The temperature in the Kalahari steadily climbs as high as 70 Celsius on the ground. Meerkats can only tolerate short bursts of activity in the morning and evening. This means they need to be very efficient at gathering food. So they quarter their territory, traveling several kilometers a day.
Tasty beetles and scorpions are common in this grassy desert. But finding them means spending a lot of time with your head in the sand. So meerkats are very vulnerable to predators. To protect the group, young males take turns keeping watch. This frees the others up to keep hunting. Scorpions have a lethal sting, but meerkats are fast as lightning.

这篇材料你能听出多少？点击这里做听写，提高外语水平>>