Cai Lun invented paper around 2, 000 years ago in China. It is an important

invention. Before the invention of paper, people had to remember lots of information

or write it on stone, wood, leaves, etc.

Today everyone in the world uses paper. With paper, we can make books and print newspapers. Sharing information is a lot easier with the help of paper.

People use paper every day. Students do homework and keep a diary on paper. Paper is a great invention.

Alan Turing was born in London, England, in 1912. He attended Cambridge

University from 1931 to 1934. Turing was a mathematician(数学家)and a computer scientist. Many people called Turing the father of computer science. He created the first design(设计) for a modern computer.

Turing wanted to know if a machine could think for itself and trick someone into believing they were having a conversation with another person. This became known as the Turing test. In the test, a human talked to two other people through a computer. One was a machine, and the other was person. This idea is still used today.

1.When was paper invented by Cai Lun?

A. Around 2, 000 years ago B. About 200 years ago.

C. Around 1, 000 years ago. D. About 100 years ago

2.People can do the following things with paper EXCEPT_________.

A. sharing information B. printing newspaper

C. having the Turing test D. making books

3.Many people considered Alan Turing to be__________.

A. the inventor of paper

B. the father of modern education

C. the inventor of paper

D. the father of computer science

4.In order to have the test, Turing needed ______.

A. three people, one computer and a machine

B. two people, one computer and a machine

C. two people, two computers and a machine

D. one person, one computer and a machine

5.From the passage, we know Cai Lun’s invention and Turning idea are _____.

A. hard to accept B. not used any more

C. unknown to people D. still used today

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