【答案解析】[范文] As can be seen from the above chart, some important changes have taken place in the past years with regard to the number of floating population. The number rocketed from 20,000 in 1980 to 100,000 in 1990, and to 280,000 in 2000. It tells us that the floating population has surged into cities. It is no difficult job for us to come up with some possible factors that underlie the above trend. In the first place, such a group mainly consists of rural labor. It relieves pressure on land in the countryside. In the second place, floating population began to exert heavy pressure on cities. Wherever it gets together, housing, unemployment, food supply, are the headaches that local governments have to tackle. A more serious problem is social security. What's more, agriculture is losing its best workers; much farm work is done by women, old people or even children. Some farmland lays uncultivated. As far as I am concerned, I think we should take some actions to put an end to the phenomenon. On the one hand, we should publicize job ads and requirements appropriate for rural labor to prevent blind transferring. On the other hand, we should develop agriculture economy and related fields, thus absorbing redundant local labor. Only in this can we stop the phenomenon.