Ⅴ. 阅读理解
(A)
Scientists are trying to make deserts into good land again. They want to bring water to the deserts so that people can live there and grow food. While they are learning a lot about the deserts, more and more good land is becoming deserts. Scientists may not be able to change the deserts in a short time because humans are doing bad things to the earth.
Some places on the earth don't get much rain. But they still don't become deserts. This is because some green plants are growing there. Small green plants and grass are very helpful to dry places. Plants don't let the hot sun make the earth even drier. Plants don't let the wind blow the earth away. When a little bit of rain falls, the plants hold the water. Without plants, land would become a desert much more easily.
根据短文内容，选择最佳答案。
( ) 1. Why does good land become deserts?
A. Because some places don't get very much rain.
B. Because plants don't let the hot sun make the earth even drier.
C. Because people don't protect the environment well.
D. Because scientists haven't learned enough about the deserts.
( ) 2. Which of the following is NOT true?
A. People are doing something bad to the earth.
B. Planting grass is also helpful to the deserts.
C. Bringing water to the deserts can help people grow food there.
D. Everyone is sure that scientists can change the deserts into good land now.
( ) 3. What does the underlined word "hold" mean in Chinese?
A. 举行 B. 保留 C. 拿着 D. 支撑
( ) 4. Why are green plants and grass helpful?
A. They can hold the water.
B. They can stop the wind from blowing the earth away.
C. They can keep the earth wet.
D. All of the above.
( ) 5. The best title for this passage is ____.
A. The Desert Problem
B. People Make Deserts
C. Green Plants and Grass
D. The Desert, the Tree and the Water
