1. There are several different opinions among people as to __ .Some people suggest that ____.关于……人们有不同的观点。

一些人认为……

2. There is an old saying that____. Its the experience of our forefathers，however，it is correct in many cases even today.俗话说(常言道)……它是我们前辈的经历，但是，即使在今天，它在许多场合仍然适用。