The world has many towns and cities constructed in previous centuries that are suitable and livable for people in those times. What problems will this cause today and what can be done to solve these problems?
背景句：Globalization and modernization nowadays have considerably outpaced the construction of new cities，which has brought some adverse impacts on people’s life.
话题介绍：Under pressure, the government needs to identify them to reduce complaints from citizens.
主题句：Commercial development gives a facility to urbanization in some cities where the basic infrastructure does not match the needs of enormous flow of dwellers.
平行列举 1：In some cases, the shortage of transportation means that the road would be blocked by vehicles especially during rush hours. This low efficient traffic can have negative implications on business to some extent.
平行列举 2：Apart from stagnated traffic, there are accommodation issues to be considered. This is because the advances of economy surely require large numbers of migrants. If single-storey constructions without necessary facilities including heating, sewage system and even electricity supply take a dominating place in city, it would be difficult for those workers to dwell comfortably.
主题句：To solve the problems identified above, the most influential factor may be the government who is responsible for modifying the old cities.
平行列举：Perhaps viaducts are needed to accommodate more vehicles and underground traffic systems such as railways or underpass tunnels can serve to ease road traffic dramatically. Persuading estate companies to construct more functional concrete jungles would probably be an effective strategy to mitigate the terrible living or working conditions. It would also help to improve the overlook of city if some districts are demolished for central business areas, public parks or statues.
Overall, the governors play a vital role in city development, and tax payers should have the awareness of maintaining their new cities.
impact on... 对...产生影响
to some extent 在某种程度上
it will/would be difficult for sb to do sth 对某人来讲做某事是有困难的
serve to 服务于
play a vital role in 在某方面发挥巨大作用