题目

任务型阅读；阅读下列短文，根据短文信息完成文后表格，每空一词。 This week, our topic is pollution. What are the answers to all of our pollution problems? We asked two experts to give their views. ◇Forest Smith is a member of Green First, an environmental group. Our future on the Earth looks very bad. We are dumping waste on our land. We can’t breathe the fresh air. The sea is polluted too. I visited some relatives recently in a small village. They grow their own food and cycle everywhere. They are not wealthy, but they are happy and healthy. We must clo一元二次方程x2-2x+2k=0有实数根，则k的取值范围是k≤12k≤12．