1. 近年来越来越多的民工涌入大城市
2. 产生这一社会现象的原因
3、你的看法
Why Are There So Many Rural Laborers in Big Cities?
No one has failed to notice the phenomenon that there has been a steady rise inthe number of rural laborers who swarm intobig cities. Taking a look around， we can find that many men work on construction sites , while many women work as cleaner in restaurants or babysitters for city dwellers .
Ample reasons can account for this social phenomenon. First and foremost, the limited land can no longer produce enough crops for an ever-increasing rural population，they have no choice but to flock into big cities to earn a living.In the second place, it is widely accepted by the countryman that the larger the cities are，the greater the opportunities are ，which means they have chance to work and live and raise their families with dignity (更多的机会去工作、生活,更体面地养活家庭). Last but by no means least, many of them want to live permanently (永久的)in big cities, because they admire the way of living there, and also their children can receive better education. {注：其实主要就是写大城市的好处}
Farmers doing business and seeking jobs in cities is of multi-facet great significance to (多方面有重要意义) Chinas socioeconomic life. It is a main way to transfer rural surplus labororsand a process to advance urbanization (推进城镇化)，Without this step, urbanization would have no economic foundation . Accordingly, The great roles played by farmer workers in urban construction and development is indispensable (必不可少) and should not be neglected .