Is achieving ZPG good or bad? What happens when a country's population begins to drop? Many people, after all, believe that population decline is a good thing. But is it good for everyone? Does everyone agree?

　　An aging population can create many problems. Senior citizens require more health care and medical attention. Rather than paying into retirement programs, they begin to draw from their pensions. In the US, the Social Security program, according to many experts, will be used up by 2018. It will pay out more money than it takes in. Additionally, a great number of jobs go begging in search of people willing or able to do them. Many of these jobs are entry­level positions that pay low wages. With an aging population, who will fill them? At the other extreme, some positions require a large number of training and highly specialized skills. Who will fill these positions as retirees leave the workforce?

　　The answer to the problem of declining and aging population is simple: increased migration. Today many people, particularly those from less developed countries, are migrating in search of employment. Many are willing to take jobs that cannot (or will not) be filled by the_domestic_population. Others are well educated and highly skilled. Both groups contribute to a country's economy progress in many ways. Further, they add to the richness of a country's culture. Of greatest importance, perhaps, is the fact that they have become absolutely necessary to the economy of many lands. As you can see, for many countries and for most immigrants, migration is a win­win situation.

【2017版高考英语外研版一轮复习跟踪检测：必修4 Module1《Life in the Future》（含解析）】相关文章：

★ 2017高考四川省广安市英语阅读理解一轮系列训练：8（含解析）

★ 2014届高考英语一轮复习课时作业(十五)必修3Module 3《The Violence of Nature》（外研版）

★ 北京市2014高考英语一轮复习 练习手册（34）选修7 Unit 4 Sharing（含解析）新人教版

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习书面表达专题训练：技法7 画龙点睛的结束语（含解析）

★ 四川省2016届高考英语一轮复习课时作业（34） Module 4 Music 外研版选修6

★ 【人教版】2014届高考英语一轮复习指导考点针对练：选修7 unit3《Under the sea》

★ 2014届高考英语一轮复习课时作业(十九)必修4Module 1《Life in the Future》（外研版）

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习短文改错专题训练：考法3 行文逻辑错误（含解析）

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修5 Unit 4 Making the news

★ 2014届高考英语一轮复习课时作业(二十四)必修4Module 6《Unexplained Mysteries of the Natural World》（外研版）