参考例文一：
With the rapid development of computer,computers are becoming growing popular among people all over the world.And the popularity of using computer is increasing year by year.It is obvious that the computer is playing an important role in our daily life.
Due to the comprehensive applications of the Computer,it has been gradually taking place of human beings in some areas.Such as people can use computers to compose,purchase goods,or hold meetings.What’s more, computer can greatly improve people’s working efficiency.However,every coin has its two aspects.Computer also brings some disadvantages.For example,since computer games now have been prevalent among students, they almost spend more than 6 hours for entertainment on computer,and not study any more.Besides,many people now favor talk with their friends on line,and they meet less frequently than ever before.As a consequence,the lack of speaking leads to their terrible expression.
To sum up,we are supposed to keep balance between entertainment and study,make the best use of its good aspect to get further more improvement.
参考例文二：
Nowadays no matter where you go,you will find computers being used. For example,computers are used in universities,large corporations,and small offices.It has even been used in the homes of ordinary people.As it is able to store and process a large amount of information,the computer brings about great convenience and high efficiency to people of all walks of life.
Computers can help people in different ways.For example, computer helps scientists in analyzing data and doing complex calculation. Besides,computers are made use of by engineers in designing a plane,or a spaceship.In addition,computers also play a great role in helping children with their lessons.You will find that it is necessary for people to use computers.
However,the computer can never replace the human brain.The computer must be designed and instructed by man.And they need detailed instructions and programs prepared by humans to make decisions.
