The rapid development of science and technology has brought about great changes to human The great benefits brought about by this progress is hailed in every corner of the New electronic appliances have made our life simpler than ever New inventions have helped us to organize our daily Our job can be done Mobiles and QQ have made it easier to communicate with other Internet has enabled us to know and understand other culture and society However，The disadvantages about this development should not be neglected Some of scientific inventions have even caused great harms or disastersto For example，advanced technology can be easily manipulated by irresponsible Besides，We'll be too dependant on When technology fails，we are helpless Sometimes，it affects our health and lifestyles(we'll be complacent and ) The chemicals may be hazardous)What's worse，Science and tecnology may even destroy our simple and healthy life(Sometimes How we miss the traditional style of living!)In addition ，The appearance of new technology may invade our To sum up，humans must be alert against the possible harm while enjoying the benefits from them
