英译汉：

　　1、Many experts point out that physical exercise contributes directly to a person's physical fitness.

　　2、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.

　　3、An increasing number of experts believe that migrants will exert positive effects on construction of city.

　　4、People believe that computer skills will enhance their job opportunities or promotion opportunities.

　　5、The information I've collected over the recent years leads me to believe that bicycle will continue to play extremely important roles in modern society.

　参考译文：

　　1、许多专家指出体育锻炼直接有助于身体健康。

　　2、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。

　　3、越来越多的专家相信移民对城市的建设起到积极作用。

　　4、人们相信拥有计算机技术可以获得更多工作或提升的机会。

　　5、这几年我收集的一些信息让我相信自行车仍然会继续在现代社会发挥极其重要的作用。