Technology is a broad concept; it can be developed in many aspects. Technology reminds me a variety of things, like computer, organic food, education, medicine and so on. Nowadays, scientific and technological advance has brought humans a lot of benefits. For instance, people only need a computer, then they could know the latest news all of the world without going outside, they could download and upload whatever they want, they could chat with the people from different countries and they could also use it for entertainment. Moreover, to compare with the way schools used to impart knowledge to students in the past, now teachers use PPT during the class instead of writing a number of notes on the blackboard.  Imagine that if we live without these technologies, what our life will be? The answer is ‘Oh no!’ It is undeniable that these advanced technologies make people’s daily life much more convenient.

Nevertheless, technology can have two sides of the same coin, and people should pay attention to both positive and negative aspects. Technology also has potential threats and some of them may cause terrible accidents, such as the abuse of penicillin. Therefore, while human is developing the technologies, they should also figure out the preventive measures at the same time.