She but could not see anything.

    You may think there is only1in the desert of the world. However, it is not true. In the desert, as we know, there is a little2, and it is not enough for most plants. Still we can see some plants live in the desert. There is3in some places in the desert. We call these places oases (绿洲). In the oases, there are villages and towns. People grow all kinds of4in the fields there. People also live outside the oases. They have camels (骆驼), sheep and other animals.5are these animals' food and they do not need much water. The6are useful to the desert people in many ways. They eat the meat and drink the milk of the animals. They use the7for carrying water, food, tents and something else. The people of the desert have to keep moving from place to place. They must always8grass or desert plants for their animals. When there is no more9for their animals, they move to another place. The desert people are10. No man in the desert would ever refuse to help the people in trouble.