1. (2020·衡阳模拟) 阅读下面的短文，在空白处填入一个适当的词或填入括号中所给单词的正确形式。

    Cooperation(合作)and competition are both important. They're necessary for a person to achieve success in life.

    Learn to be cooperative with others. No one likes a selfish (自私的) or greedy (贪婪的) person. However, everyone likes a cooperative and (friend) person. Everything we do today, whether doing business making friends, depends on our ability to get along with one another. In our society, most (task) need cooperation in order that they can be (finish) well. So we must try to be cooperative. Each person is like a small part of a machine. If one part is out of order, the machine can't be running well. Besides, transportation and communication systems are developing (quick), and people all over the world can keep in with each other more easily. It's hard for a person is away from the society to have a deep understanding of the world he lives in. Cooperation is (become) more and more important for a person to lead a good life.

    Being competitive also has a place in life. If we want to get more success and be better than others, we must work and study carefully. The desire (欲望) to succeed and do better than others encourages to work harder. If there was no competition, a sports meeting would never be exciting.