b.列举危害

　　1)First , the travel craze puts a heavy burden on the traffic system .

　　首先，旅游热潮给交通系统造句成了沉重的负担。

　　2)Second , thousands of tourists flood into scenic spots , causing over crowdedness and safety problens .

　　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。

　　3)Secondly , some students rely on the reference books too much , which is unfavorable to the improvement of their ability to sork 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。

　　4)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。

　　5)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。

　　6)On the hand , it is a selfish behavior , which damages other students imterests .

　　一方面，这是一种自私的行为，会损害其他同学的利益。

　　7)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。

　　8)For on thing , it takes up so much of the pupils time that the 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。

　　9)Moreover , ones 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。

　　10)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。

　　11)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。

　　12)Whats 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。

　　13)These disasters have killed millions of people , destroyed countless homes , and wiped out numerous peeces 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。

　　14)Long exposure to noise will lead to the loss of hearing and powwibly drive people mad .

　　长期接触噪声会导致失聪，还可能使人发疯。

　　15)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。

　　16)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。

　　b.列举危害

　　1)First , the travel craze puts a heavy burden on the traffic system .

　　首先，旅游热潮给交通系统造句成了沉重的负担。

　　2)Second , thousands of tourists flood into scenic spots , causing over crowdedness and safety problens .

　　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。

　　3)Secondly , some students rely on the reference books too much , which is unfavorable to the improvement of their ability to sork 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。

　　4)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。

　　5)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。

　　6)On the hand , it is a selfish behavior , which damages other students imterests .

　　一方面，这是一种自私的行为，会损害其他同学的利益。

　　7)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。

　　8)For on thing , it takes up so much of the pupils time that the 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。

　　9)Moreover , ones 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。

　　10)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。

　　11)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。

　　12)Whats 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。

　　13)These disasters have killed millions of people , destroyed countless homes , and wiped out numerous peeces 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。

　　14)Long exposure to noise will lead to the loss of hearing and powwibly drive people mad .

　　长期接触噪声会导致失聪，还可能使人发疯。

　　15)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。

　　16)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。