1．科学给人们带来许多好处；
2．科学也给人们带来许多灾难；
3．我们该怎么做?
[例文]
Science and technology have been bringing human being tremendou benefit。 Thank to cience and technology， we now live comfortably and conveniently in houe furnihed with air conditioner， refrigerator， wahing machine and televiion etc。 Thank to cience and technology， we can eat freh vegetable att the year round。 Thank to cience and technology， we can travel tong ditance in the fraction of a econd on plane， train and car。 Thank to cience and technology， we wear clothe with ynthetic material which can not eaily be worn out。
However， cience and technology have ato brought u a tot of diater。 Firt， becaue of the many breakthrough in the field of medicine， people are now living much longer than they ued to。 A a reult， the population of the world i increaing， cauing tot of problem。 Second， becaue of the development of indutry， tot of the wate from factorie pour into the air and river， cauing pollution of att kind。 Third， ome terrorit are uing cience and technology againt mankind。 They ue biological， chemical and unclear weapon to threaten world peace。。。
So it' urgent that we find way to olve thee problem。 But we hould not top the development of cience and technology becaue of thee diater they bring， jut a we hould not give up eating for fear of choking。 In addition， we hould make ome rule to regulate our action。 A long a we ue cience and technology in a proper way， they may bring u even more benefit。[由wwW.HaoZuoWen.com整理]