求一篇英语作文,关于越来越多的农民工涌到大城市生活.急~~~
题目
求一篇英语作文,关于越来越多的农民工涌到大城市生活.急~~~
答案
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.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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