1. 现在经常有这样的现象发生：路上有人摔倒，没人敢上前帮忙。

　　2. 这是人们的公德心缺失还是其他什么原因呢?

　　3. 你对此有何看法?

　　参考范文：

　　Should we help others in need?

　　Helping others has always been a virtue in traditional Chinese culture. But what's strange nowadays is that people dare not show their helping hands to those in need. I would like to elaborate my views on this issue.

　　Firstly, I think people's moral sense has degraded. When egoism gains the upper hand, many people find it growingly hard to help others. Secondly, there is no denying that some tragic events turn out to be traps by people with evil intentions. So common people are becoming more risk-conscious and are more wary of traps and deceits.

　　In general, I contend the idea that we should be warm-hearted and offer help as well as look out for potential hazards so as not to be deceived.