精选优质文档-倾情为你奉上四级考试作文经典常用句型开头专心-专注-专业Recently, the problem of Has aroused peoples concern. 最近,问题已引起人们的关注. Internet has been playing an increasingly important role in our day-to-day life. It has brought a lot of benefits but has created some serious problems as well. 互联网已在我们的生活中扮演着越来越重要的角色.它给我们带来了许多好处,但也产生了一些严重的问题. Nowadays, (overpopulation) has become a problem we have to face. 如今,(人口过剩)已成为我们不得不面对的问题了. It is commonly believed that / It is a common belief that 人们一般认为