With the development of science, our life absolutely has changed a lot. If we regard today’s life as a lock, then the science, of course, should be the key to it. Without the key, maybe human now cannot open the door of every field in our normal life and even live any longer.

In the past of our life, people in deference places haven’t the chance to get the food of others’. So people need to choose the right time and the right place to enjoy them. But nowadays, in every season, various fruits and vegetables from different counties are available. It isn’t so amazing that you can see a Chinese has a cup of kiwi juice in the middle winter and an American eats the strawberries from Wimbledon at the same time. Science breaks the limitation of our traditional agriculture.

Turning to the medical field, nobody can deny the advantages it brings. It’s the science that makes

us get the rid of Smallpox; it’s the science that keeps artificial hearts in our bodies ,making the wonderful sounds of living; it’s the science that takes the place of the God’s touching and decrease the pain people have on the operating table.

Have you ever thought what put the live match take on your TV? Have you ever considered what let Google Earth to make so much profit every year? Have you ever realized what keep human beings walking on the moon and travel around the earth? There is no doubt that it is the space science!

However every coin has two sides. Now the public has the doubt whether the faster science develops the better human life will be. So people begin to concern about how the local tourism advances when we can enjoy the world by the Internet and the modern agriculture skills; how we should face up to the cloning living things which brought by the genetic science; how we protect our private affairs from surveillance.

Maybe the science really takes us lots of troubles, but compared with the advantages it brings, we still can say the science is the door of the future. So we should lay the emphasis on how we treat and use it.