大学英语（1）第一次网络作业(三次网络作业的平均成绩占期末考试成绩30%，请大家在认真复习好大学英语课本第一册第1-2单元的课文、词汇与短语后完成如下作业；作业一经批改评分，将不能修改；此次作业完成后应交到“在线作业”一栏本次作业界面中；作业必须按最后一页答卷表格格式作答，不要以附件形式缴交)一. 阅读：（ 1 ）The worlds population continues to grow. There now are about 4 billion of us on earth. That could reach 6 billion by the end of the century and 11 billion in a further 75 years. Experts have long been concerned about such a growth. Where will we find the food, water, jobs, houses, school and health care for all these people?A m
