Science and technology have changed the world we live in a lot.It makes our lives safer,more convenient and more comfortable.
On traffic,now we have many kinds of methods such as vehicles,trains,planes,etc.,that can be chosen to go to another place,even it is rather far away,we can arrive there within a few hours.In old days,people had to walk or by cart to go somewhere far away and it would take quite a long time.
Nowadays,medicines that are more efficient have been researched.When people are ill,they can be treated with newly developed medicine that can cure most of their diseases easily.Just tens of years ago,pulmonary tuberculosis is a disease that had seized a lot of people’s lives,but now,it is quite easy to tackle.
But,we can’t neglect that with the development of science and technology,problems such as pollution,nuclear weapon,etc.,occurred,which harms our lives and the world’s peace.Quiet a number of cosmopolises are facing the problem of getting polluted by vehicles,industrial plants.Biological and chemical weapons have be researched and used in modern wars.
We must make good use of science and technology and avoid acting them as the tools of destroying the world’s fresh and peace.