问答题 Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third reading, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be rend at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more.

【正确答案】

【答案解析】[听力原文]
Our busy 21st century world contains a great many more people/than it ever has in written history./With many recent advances in medicine/and more food available to less wealthy countries,/our numbers continue to increase dramatically./ Some consider these facts solid ground/on which to eventually start using a worldwide population control policy,/others point out the obvious moral questions/and human right issues raised with such a dramatic debate./ Some of the more obvious problems caused by overpopulation include/food shortages, pollution, increased health problems,/ and overall decreased quality of life./ Many of the food shortages in countries such as South Africa/wouldn't be such a problem if the population didn't continue to increase/at the rate it does currently.