题目

上课的时候可以吃东西。 答案：错误  Is the world too crowded? Well,that’s a hard question to answer. It’s all a matter of perspective (视角).In Montana,you might drive for a mile in any direction and not see another human being. In Macao,60,000 people live in every square mile!What is true is that the world’s population doesn’t stay the same. It has been increasing at a very fast rate (比例）. That’s because in each generation (代）there are more people who then have children than that in the last generation.Five hundred years ago,the population of the world was about 460 million. In 1900,the world’s population was under 2 billion. Right now it is doubling every 40 years. That means，if this rate of growth continues，when you are a parent,there will be twice as many people on earth as there are now. Wow!Now that’s a lot of people!Soon the world’s population will probably reach 7 billion. Some people worry about that!But there is a lot of disagreement about just how many people on earth equals(相当于）too many people. But everyone agrees that the more people there are,the more resources (资源)the world needs to feed,and take care of all of them,and the more need there is to think carefully about how we live and use the earth’s resources.根据材料内容选择最佳答案。(   ) 56. From  the  first  paragraph we can know that          .A. Montana is too crowded     B. Macao is too crowdedC. the world is too crowded     D. the world is not too crowded(   ) 57. The population is increasing fast partly because          .A. people live longer than beforeB. there are less wars than beforeC. medicine is developing faster than beforeD. more couples now would like to have children than before (   ) 58. What was the world’s population 100 years ago?A. 450 million.  B. About 2 billion.C. 40 billion.  D. 7 billion.(   ) 59. The writer thinks that with the population increasing,we should          .A. find more resources     B. use more resourcesC. think about our ways of living     D. move to other places(   ) 60. From the passage we can learn that the writer        .A. thinks the world already has too many peopleB. thinks the world can feed no more than 7 billion peopleC. is not sure when the world’s population will reach 7 billionD. is not sure what the largest population that the world can feed is