An increasing number of experts believe that migrants will exert positive effects on construction of city .However ,this opinion is now being questioned by more and more city residents ,who complain that the migrants have brought many serious problems like crime and prostitution.
越来越多的专家相信移民对城市的建设起到积极作用.然而,越来越多的城市居民却怀疑这种说法,他们抱怨民工给城市带来了许多严重的问题,象犯罪和卖淫.

According to a recent survey ,four-million people die each year from diseases linked to smoking.
依照最近的一项调查,每年有4,000,000人死于与吸烟相关的疾病.

The latest surveys show that Quiet a few children have unpleasant associations with homework.
最近的调查显示相当多的孩子对家庭作业没什么好感.

Proper measures must be taken to limit the number of foreign tourists and the great efforts should be made to protect local environment and history from the harmful effects of international tourism.
应该采取适当的措施限制外国旅游者的数量,努力保护当地环境和历史不受国际旅游业的不利影响.

Many city residents complain that it is so few buses in their city that they have to spend much more time waiting for a bus ,which is usually crowded with a large number of passengers.
许多市民抱怨城市的公交车太少,以至于他们要花很长时间等一辆公交车,而车上可能已满载乘客.

A proper part-time job does not occupy student’s too much time .In fact ,it is unhealthy for them to spend all of time on their study .As an old saying goes :All work and no play makes Jack a dull boy
一份适当的业余工作并不会占用学生太多的时间,事实上,把全部的时间都用到学习上并不健康,正如那句老话:只工作,不玩耍,聪明的孩子会变傻.

The majority of students believe that part-time job will provide them with more opportunities to develop their interpersonal skills ,which may put them in a favorable position in the future job markets.
大部分学生相信业余工作会使他们有更多机会发展人际交往能力,而这对他们未来找工作是非常有好处的.