Recently, the problem of … has aroused people’s concern. 最近,……问题已引起人们的关注.
The 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……
Many people insist that … 很多人坚持认为……
With the development of science and technology, more and more people believe that…
随着科技的发展,越来越多的人认为……
A lot of people seem to think that … 很多人似乎认为……