听一分钟英文：Immigration-移民

（单词翻译）

Immigration¹ wasn’t really a problem a long time ago. Many countries welcomed immigrants² because they needed workers. The USA, Australia and Canada encouraged millions of people to come and live in their countries. Today, however, immigration is becoming a problem. Many countries are trying to control immigration. At election³ time, it is a major issue⁴. Immigration today is big business. More and more people from poor countries want to live in rich countries. It is easier to travel nowadays because of cheap transport and more open borders. People risk their lives to get the chance of starting a new life in a rich country. This can cause anger in the countries immigrants go to. It is an issue that will be with us forever, I think.