提纲
1。 科学使人类进步，生活得更美好。
2。 科学有时也会带来负面效应，如原子能毁掉一切。
3。 就科学与人类的关系谈谈你的观点。
Science enable human being to progre rapidly and lead a better life。 For example， Edion＇ invention of the light bulb brought our gloomy life to the end and created a bright world for u。 Another cae in point i Watt＇ dicovery of the team engine， which triggered the indutrial revolution in the wetern countrie， and later all over the world。
Meanwhile， ometime cience doe have ome ide effect。 A good illutration of thi i atomic energy， which can detroy human being completdy when ued in nuclear weapon。
Anyhow， it i men who develop cience。 And cience， in turn， will do u good in general。 A for it ide effect， I believe human being will be rational enough to avoid them or keep them under control。