題目要求：

1. 近年來(lái)越來(lái)越多的民工涌入大城市

2. 產(chǎn)生這一社會(huì)現(xiàn)象的原因

參考范文：

For a number of years, there has been a steady rise in the number of rural laborers who flood into big cities. Many men work on construction sites, while many women work as dishwashers in restaurants or babysitters for city dwellers. Three reasons, in my mind, can account for this?social?phenomenon.

First and foremost, the limited land can no longer produce enough crops for an ever-increasing rural?population. In the second place, there are far more opportunities in big cities—rural laborers dream of earning money through hard work. Last but by no means least, many of them want to live permanently in big cities, because they admire the way of living there, and wish their children to receive good education.

I firmly believe that if we try our best to create a healthy?social?atmosphere, rural laborers will make greater contribution to our nation.