What is the largest hot desert (沙漠) on the earth? If your answer is the Sahara, you're correct. The Sahara has over 9 million kilometers. .
Now, you may think that it's all sand (沙子) and has no hills. Sand dunes (沙丘)are hills in the desert and the Sahara is famous for them. They can be over 180 meters high. You can see them in many movies.
. In summer, it could be above 49℃. And the hottest day in history was 58C. But it doesn't stay that way all the time. That's a little surprising, isn't it?
There are two large rivers and some seasonal lakes in the Sahara. The rivers along with the seasonal lakes play an important role. There's more to the Sahara than you think!
| A. However, that's not true. B. Why is the Sahara growing? C. At night, it becomes very cold. D. The Sahara is the hottest desert. E. Deserts do not stay the same size. F That makes it almost as big as China or the US. G. Because oases (绿洲) get water from them. |
