说明危害段

一）引出危害

However,problems may also arise.

然而，也可能会出现问题。

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负面影响。

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。

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。

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。

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。

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。

On the other hand,private tutoring has also some disadvantages.

然而，私人家教也有一些缺点。

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。

However。many others hold that the holiday economy does more harm than g00d.

然而，也有许多人认为，假日经济弊大于利。

However,relaxing the limit of age and marriage might bring some problems.

不过，放宽年龄和婚姻方面的限制可能会带来一些问题。 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。

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。

Though most of students' taking seats in advance are for the purpose of better 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。 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问题。

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。

二）列举危

First, the travel craze puts a heavy burden on the traffic system.首先，旅游热潮给交通系统造成了沉重的负担。

Second,thousands of tourists flood into scenic spots,causing over-crowdedness and safety problems.

第二，成千上万的游客涌向各个景点，带来过度拥挤和安全问题。

Secondly, some students rely on the reference books too much, which is unfavorable to the improvement of their ability to work out the solutions by themselves.

第二，一些学生过分地依赖参考书，这不利于培养他们独立解决问题的能力。 Thirdly,there are some reference books filled with mistakes,which might mislead students.

第三，一些参考书中错误连篇，可能会误导学生。

Finally,disposable products make people develop a throwaway habit,which is harmful to our social atmosphere.

最后，一次性产品可能会让人们养成随手扔东西的习惯，这将对整个社会的风气造成不利的影响。

On the hand, it is a selfish behavior,which damages other students' interests.

一方面，这是一种自私的行为，会损害其他同学的利益。

For one thing,married students have to take care of their family,which brings more difficulties for school management.

一方面，已婚学生必须要照顾家庭，这会给学校管理带来更多的困难。

For one thing, it takes up so much of the pupil's time that he can hardly find enough time for rest and entertainment.

一方面，这会占用学生太多的时间，导致学生几乎没有足够的时间休息和娱乐。

Moreover,one's violating public morality not only invades others' benefits but also does harm to himself.

而且，违反公共道德不仅侵犯他人的利益也会伤害到自己。

Furthermore,disposable products cause serious pollution to our environment.

而且，一次性产品会给环境造成严重的污染。

More seriously/Even worse,some students might lose control of their emotions and behaviors.

更糟的是，一些学生可能会无法控制自己的情绪和行为。

What's worse,depression is one of the main reasons that people kill themselves.

更糟的是，抑郁是导致人们自杀的主要原因之一。

These disasters have killed millions of people,destroyed countless homes,and wiped out numerous pieces of fertile land.

这些灾难已经夺走了数百万人的生命，摧毁了无数的家园，还吞噬了大量肥沃的土地。

Long exposure to noise will lead to the loss of hearing and possibly drive people mad.

长期接触噪声会导致失聪，还可能使人发疯。

For example,if most people buy pirated products, those original producers will suffer great damage and might lose the enthusiasm to continue their producing, which in turn influences consumers.

例如，如果大多数人都购买盗版产品，那些正版产品的生产者将遭受极大的损失，而且可能会失去继续生产的热情，这反过来会影响到消费者。

Many college students are too much indulged in these games so that their health and academic performances are seriously affected.

许多大学生过分迷恋这些游戏，导致他们的健康和学习成绩受到了严重的影响。