1. 关于……人们有不同的观点。一些人认为……
There are different opinions among people as to ____ .Some people suggest that ____.
2. 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。
There is an old saying______. It"s the experience of our forefathers,however,it is correct in many cases even today.
3. 现在,……,它们给我们的日常生活带来了许多危害。首先,……;其次,……。更为糟糕的是……。