各类功能句常规写法
　　说明危害段

　　1.引出危害

　　1)However , problems may also arise .
　　然而，也可能会出现问题。

　　2)These immoral behaviors have brought great bad / negative effects on our society .
　　这些不道德的行为已经给我们的社会带来极大的不良影响。

　　3)Depression can bring great bad influences / effects on one's study , work and life .
　　抑郁会给人的学习、工作和生活带来极大的不良影响。

　　4)Noise brings great harm to our daily lives .
　　噪声给我们的日常生活带来很大的危害。

　　5)However , the use of the so-called " convenience goods " is extremely harmful in many ways .
　　然而，使用这些所谓的“便利品”有很多害处。

　　6)It is very clear that this phenomenon produces harmful effects in many aspects .
　　很显然，这种现象会产生很多危害。

　　7)Psychological problems are likely to lead to very serious results .
　　心理问题可能会导致非常严重的后果。

　　8)On the other hand , private tutoring has also some disadvantages .
　　然而，私人家教也有一些缺点。

　　9)As every coin has two sides , recycling textbooks has also some disadvantages .
　　正如每个硬币都有两面一样，循环使用教科书也有一些弊端。

　　10)However , many others hold that the holiday economy does more harm than good .
　　然而，也有许多人认为，假日经济弊大于利。

　　11)However , relaxing the limit of age and marriage might bring some problens .
　　不过，放宽年龄和婚姻方面的限制可能会带来一些问题。

　　12)In fact , depression affects not only one's mind but also his body .
　　实际上，抑郁既会影响人的思想也会影响人的身体。

　　13)However , deciding everything for children does not help them but harm them in many ways .
　　然而，为孩子决定一切不但对他们没有帮助，反而会有很多害处。

　　14)Though most of students' taking seats in advance are for the purpose of bettter study , this kind of phenomenon has great negative effects .
　　尽管大多数学生提前占座是为了更好地学习，但是这种现象有很大的负面影响。

　　15)A smart use of reference books is certainly beneficial , but the misuse and overuse of them may cause a lot of problems .
　　明智地使用参考书当然有益，但是误用或过度使用这些书就可能会带来很多的问题。

　　16)If this trend continues , it will exert undesirable / disastrous effect / influence .
　　这种趋势如果持续下去的话，将会带来不良的/灾难性的影响。