范文1.Computers
It is known to us all that the computer is the most important invention in the 20th century. It has been developed a lot since it appeared. Also, our daily life has greatly changed because of it.
A computer can think and remember things like man, but it is millions of times faster than human begins. As a result, computers have been used in the fields of agriculture(农业), industry(工业), education(教育) and so on. For example, we can learn our lessons at home by using a computer instead of going to school.
Computers have entered our daily life. So it is important for us to learn how to use a computer. And we must start right now.
范文2：Computers
The computer is a wonderful machine. They are already widely used in industries and in universities. They are used in many ways.
Computers can do many kinds of work. For example, computers can helps us do maths problems quickly. Some problems are too hard for us to work them out, but computers can. A scientist can ask computers some questions, and the computers can answer on the screen.
In a car-factory computer tells the robots how to do with the cars.
Computers are very useful. So many parents buy computers for their children. They hope computers can help them improve their studies in school, but some children don’t do as what parents want them to do. Because they used the computers for surfing on the Internet and spend too much time playing computer games instead of learning. It does not good for their eyesight. So their parents complain about computers not help children to study but also make them fall behind.
In many companies computers instead of workers to work. So many people lose their jobs. So many workers think computers bring them a lot of trouble.
If computers are good for us or bad for us it’s hard to say so I hope computers will be used in the right way.