Since citie have changed a lot, the ize of the citie ha grown enormouly. Dicu the caue and conequence of the enormou ize of citie.
Nowaday, the map of citie are updated frequently. With the development of city, more and more uburb become part of the city. When the citie in the world are amplifying contantly, people dicu the topic hotly, the caue and conequence of the enormou citie. Different people have different anwer by their repective view.
In my opinion, the evolution of ociety and the development of economy reult in the growth of the vat ize of citie. Since the number of population in every city i increaing continually, people need a large amount of pace to live in. With the progre of the technology, the output of crop rie harply. Fewer and fewer farmer are required, a a reult, more and more village urbanize. The growth of the citie bring u many huge change.
There are more job opportunitie in the citie. For intance, China will hold the Olympic Game in Beijing in 2008. The government i amplifying the ize of Beijing to build new gym in order to hold it excellently. Obviouly, people in the citie could gain a lot of new job.
Of coure, the enormou ize of citie alo ha bad effect. Pollution i becoming more and more eriou all over the world with the amplification of the citie. For example, the poionou ga ent off by factorie and automobile ha made the air unhealthy for people to breathe. Water wate keep pouring into river and lake; a a reult, many water pecie are dying out. Furthermore, more people the city have, more rubbih we can find.[由wWw.HaozuoWen.com整理]