先通读下面的短文，掌握其大意，然后在每小题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

    Once there was a lovely vegetable field with a very big tree in it. Both of the vegetables and the tree made the garden look wonderful.

    One day, the vegetables and the tree couldn't get on well with 1. The vegetables disliked the tree because they thought the tree didn't leave them enough 2 by covering them with its thick leaves while the tree thought that the vegetables drank nearly all the water before it could reach him.

    The situation became worse and worse. One day the vegetables decided to 3 all the water in the ground so that the tree would dry up. The tree fought back by refusing to offer the vegetables shade(树荫). Soon they both began to dry up under the hot sun.

    Neither of them expected that the gardener would stop 4 his vegetable field because he thought it was 5 to save the vegetables. When the gardener did that, the tree and the vegetables really felt how 6 they were. There seemed to be no way to solve the problem. Then a small pumpkin decided to do something to change the situation. The small pumpkin did all he could to grow 7 there was little water and it was too hot.

    Finally, the gardener 8 the growing pumpkin among the dying vegetables. 9, he started to water the field again because he still wanted to make a(n) 10 to win the beautiful pumpkin. At the same time, the tree and the vegetables were saved. Since then, they realized that it was better to help each other than to fight, and they lived in harmony with other plants.

古时有“守株待兔”的寓言，设兔子的头部受到大小为自身体重2倍的打击力时即可致死，如果兔子与树桩的作用时间为0.2s，兔子与树桩相撞的过程可视为匀减速运动。则被撞死的兔子其奔跑速度可能是：（g=10m/s²）                                           （   ）

2014年寒假期间，八年级学生小翠在QQ上结识了一个网友“暖冬”，“暖冬”多次要求小翠将她家的详细地址、电话号码等告诉他，还多次约她见面，外出游玩。对此，小翠的正确做法是    (    ) 

The dog is barking.

阅读理解。
D
     
        Bad news sells. If it bleeds, it leads. No news is good news, and good news is no news. Those are the classic rules for the evening broadcasts and the morning papers. But now that information is being spread and monitored(监控) in different ways, researchers are discovering new rules. By tracking people’s e-mails and online posts, scientists have found that good news can spread faster and farther than disasters and sob stories.
     “The ‘if it bleeds’ rule works for mass media,” says Jonah Berger, a scholar at the University of Pennsylvania. “They want your eyeballs and don’t care how you’re feeling. But when you share a story with your friends, you care a lot more how they react. You don’t want them to think of you as a Debbie Downer.”
     Researchers analyzing word-of-mouth communication—e-mails, Web posts and reviews, face-to-face conversations—found that it tended to be more positive than negative(消极的), but that didn’t necessarily mean people preferred positive news. Was positive news shared more often simply because people experienced more good things than bad things? To test for that possibility, Dr. Berger looked at how people spread a particular set of news stories: thousands of articles on The New York Times’ website. He and a Penn colleague analyzed the “most e-mailed” list for six months. One of his first findings was that articles in the science section were much more likely to make the list than non-science articles. He found that science amazed Times’ readers and made them want to share this positive feeling with others.
     Readers also tended to share articles that were exciting or funny, or that inspired negative feelings like anger or anxiety, but not articles that left them merely sad. They needed to be aroused(激发) one way or the other, and they preferred good news to bad. The more positive an article, the more likely it was to be shared, as Dr. Berger explains in his new book, “Contagious: Why Things Catch On.”