阅读理解。 Without plants, people could not live. We eat plants. We take in oxygen that plants make. And we need plants for another reason: We need them because they are beautiful. Imagine a world with no plants. Imagine no flowers with their sweet smells, their beautiful colors and their lovely shapes. Imagine, when the wind blows, we are not able to hear the leaves in the trees or watch the branches swing from side to side. Everywhere people need beautiful plants. That is why we have parks full of trees and flowers. That is why people always like houses with room for some grass and a garden. Do you talk to your plants? Do you give them love and take good care of them? Peter Tompkins and Christopher Bird, writers of a book called THE SECRET LIFE OF PLANTS, tell of an experiment in which two seeds were planted in different places. While the plants were growing, one plant was given love and hopeful ideas. After six months, the beloved plant was bigger. Under the earth it had more and longer roots; above the earth, it had a thicker stem and more leaves. 1. In the experiment, the two plants were _____. [     ] A. talked to in two different ways B. of different kinds C. both given love and taken good care of D. grown in the same place 2. At the end of six months _____. [     ] A. the plants were of the same size B. one plant had longer roots than the other C. one plant had longer roots; the other plant had a thicker stem D. one plant had a thicker stem; the other plant had more leaves 3. Tompkins and Bird believe that plants _____. [     ] A. can talk to each other B. can take care of each other C. should be grown in different places D. need love and care 4. The experiment tells us that _____. [     ] A. without plants people could not live B. we should talk to plants and give them love C. we should grow as many plants as possible D. plants need plenty of water, sunshine and fertilizer