1、recently the problem of … has aroused people’s concern. 最近，……问题已引起人们的关注。

2、recently the problem of … has been brought to public attention. 最近，……问题已引起公众的广泛关注。

3、recently, the problem of … has been brought into focus. 最近，……问题已成为关注的焦点。

4、man is now facing a big problem—(pollution), which is becoming more and more serious. 人们现在正面临一个很大的问题—污染，而且正日益严重。

5、have you ever thought of…? 你是否曾经想过……?

6、there will surely be no agreement among people as to the issue whether… 就 ……问题，人们肯定不会有一致的看法。

7、(internet) has been playing an increasingly important role in our day-to-day life. it has brought us 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。

8、one of the serious problems facing us at present is… 目前，我们面临的严重问题之一是 ……

9、there has been a heated argument about whether… 就是否 …… 而言，人们讨论热烈。

10、perhaps we need to reconsider the traditional ways of doing it. 或许，我们需要重新考虑传统的做事方法。