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七、阅读理解： Scientists are trying to make the deserts () into good land again. They want to bring water to the deserts, so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming desert all the time. Scientists may not be able to change the desert in time. Why is more and more land becoming desert? Scientists think that people make deserts. People are doing bad things t o 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 important to dry places. Plants don’t let the hot sun make the earth even drier. Plants don’t let the wind blow the dirt away. When a little bit of rain falls, the plants hold the water. Without plants, the land can become a desert much more easily. 1.Deserts ______________. A. get very little rain B. never have any plants or animals in them C. can all be turned into good land in the future D. both A and C 2.Small green plants are very important to day places because ______________. A. they don’t let the sun make the earth even drier B. they don’t let the wind blow the earth away C. they hold the water D. A, B and C 3.Land is becoming desert little b y little because ______________. A. plants can’t grow there B. there’s not enough rain C. people are doing bad things to the earth. D. scientists know little about desert 4.Which is the main idea of the first paragraph? A. Scientists know how to change land into good land. B. Land is becoming desert faster than scientists can change it back into good land. C. If scientists can bring water to the desert, people can live there. D. More and more places are becoming deserts all the time. 5.After reading this, we learn that ______________. A. plant can keep dry land from becoming desert. B. it is good to get rid of (清除) the grass in the desert C. all places without much rain will become deserts D. it is better to grow crops on dry land than to grow grass A 50-year-old American officer (官员) came back to his school. The teacher asked him to give a talk to the small boys and girls there. The talk was about the love of their great country. All the little ones were sitting in a large meeting-room. The old officer went up and began speaking. He said, “boys and girls, I studied in this school forty years ago. When I was your age, we were not as happy as you are today. Think about it and answer me, why are you so happy now?” No sound came from the children. The old man waited for a long time. Then a short boy in front put up his small dirty hand. “Good boy! Please answer me, dear.” Said the officer. With a big smile on his face, the boy stood up and said, “if you speak long enough, we won’t have maths and biology (生物学) lessons this morning.” (责任编辑：admin) |