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We all know who Benjamin Franklin was. He was a very famous American statesman. He was also the first man to discover electricity. Franklin liked to study and to learn about new things. One day he heard from a friend that something black in colour holds the heat better than something white in colour. Franklin wanted to find out if this was true or not.
There was snow on the ground at the time. So he put two large pieces of cloth over the snow. One piece of cloth was black in colour, the other piece was white. Then he waited until the sun began to shine. After several hours he looked under the pieces of cloth and saw that the snow under the black cloth melted much faster than the snow under the white cloth. This proved to him that the black cloth held the heat better than the white cloth.
Soon after this, people began to wear white hats and white clothes during the summer because they were cooler.
根据短文内容判断正(T)误(F):
1.Benjamin Franklin was only a scientist.
2. One day a friend of his told him something about the relation(关系) between colour and heat.
3. Something black in colour holds heat better than something white in colour.
4.This story happened in summer.
5. People wear white clothes in summer because they know it is cooler.
Steve Jobs was one of the fathers of the personal computer times and the founder of Apple. He was also one of the giants of the information age. Here are some of his greatest contributions.
AppleⅡ
Jobs and Steve Wozniak founded Apple Computers inc.in 1976. A year later, the AppleⅡwas invented. This production was the world’s first mass-market personal computer.
The iMac
Under Job’s leadership, Apple introduced the all-in-one iMac computer in 1988. The iMac became the first machine which offered only a CD-ROM slot (插槽).
The iPad
By 2010, Steve Jobs was confident that the world was ready to have a tablet computer that would be great for watching movies and playing games. The touch-sen-sitive iPad was a great success.
The iPhone 4s
The iPhone 4s came out on October 4, 2011, in America. It looks like the iPhone 4. It has a larger and wider screen and a slimmer yet wider case. It has a better camera and faster data transfer (数据传输) speeds.
1.When was the AppleⅡinvented?
A.In 1976 B.In 1977. C.In 1998. D.In 2010.
2.Which of the following was the iMac which came out in 1988 different from others?
A.People could play games on it.
B.It offered only one CD-ROM slot.
C.It had one camera in it.
D.It had a larger screen.
3.What was the latest product?
A.The iPhone 4s.
B.The AppleⅡ.
C.The iPad.
D.The iMac.
4.From the passage, we can know that the iPad .
A.has a better camera
B.is the first personal computer
C.has a CD-ROM slot
D.is great for watching movies
5.According to the passage, which of the following about the iPhone 4s is TRUE?
A.Its screen is the same size as the iPhone 4.
B.It has a smaller screen and slimmer case than the iPhone 4.
C.It has a larger screen and a better camera than the iPhone 4.
D.It uses more time to transfer the same date than the iPhone 4.
Steve Jobs was one of the fathers of the personal computer times and the founder of Apple. He was also one of the giants of the information age. Here are some of his greatest contributions.
| AppleⅡ Jobs and Steve Wozniak founded Apple Computers inc.in 1976. A year later, the AppleⅡwas invented. This production was the world’s first mass-market personal computer. |
| The iMac Under Job’s leadership, Apple introduced the all-in-one iMac computer in 1988. The iMac became the first machine which offered only a CD-ROM slot (插槽). |
| The iPad By 2010, Steve Jobs was confident that the world was ready to have a tablet computer that would be great for watching movies and playing games. The touch-sen-sitive iPad was a great success. |
| The iPhone 4s The iPhone 4s came out on October 4, 2011, in America. It looks like the iPhone 4. It has a larger and wider screen and a slimmer yet wider case. It has a better camera and faster data transfer (数据传输) speeds. |
| A.In 1976 | B.In 1977. | C.In 1998. | D.In 2010. |
| A.People could play games on it. |
| B.It offered only one CD-ROM slot. |
| C.It had one camera in it. |
| D.It had a larger screen. |
| A.The iPhone 4s. |
| B.The AppleⅡ. |
| C.The iPad. |
| D.The iMac. |
| A.has a better camera |
| B.is the first personal computer |
| C.has a CD-ROM slot |
| D.is great for watching movies |
| A.Its screen is the same size as the iPhone 4. |
| B.It has a smaller screen and slimmer case than the iPhone 4. |
| C.It has a larger screen and a better camera than the iPhone 4. |
| D.It uses more time to transfer the same date than the iPhone 4. |
One day after school Mr. Tillman found Philo Farnsworth making drawings on the blackboard in the school-room.
“What are you doing?” Mr. Tillman asked with interest. “ What are these drawings?”![]()
“I want to invent things,” Philo answered, “and these are drawings of my first inventions.”
Mr. Tillman smiled to himself, “What is your invention?”
“I have an idea for a way of sending pictures through the air,” The boy answered. “Please just let me tell you about it. You are the only person who can understand what I have done.”
In 1922, even radio was new. The United States had fewer than 30 radio stations. But in 1922, a boy of 16 showed his teacher drawings for television!
In 1926, Philo worked as an office boy in Salt Lake City. Many important businessmen came into the office where he worked. One of these, George Everson , was from San Francisco. Like Mr. Tillman, Everson soon became interested in Philo. The shy, hard-working boy was like other office boys who Everson had known.
One evening Everson asked Philo to have dinner with him. After the meal, Philo began talking about his idea for Television. At first, Everson was not much interested in the invention. He listened only to be polite.
Many years later, Everson wrote a book telling about that evening with Philo. “As Farnsworth talked, he seemed to change,” Everson wrote, “His eyes lighted up , and he was no longer shy.” Talking freely about his invention, Philo Farnsworth was no longer an office boy--he was a scientist.
At the end of the evening, Everson was more interested than ever in Philo. And he was also interested in Philo’s idea for television.
After talking with Philo , Everson returned to San Francisco. There he brought together a number of important businessmen . Philo told them about his invention. The men became so interested in the young inventor that they gave $25,000 to help him work on his idea. Philo was only 20 years old, but here was his chance.
【小题1】What kind of drawings was Philo making on the blackboard one day?
| A.Drawings of his school-room. | B.Drawings of his invention. |
| C.Drawings of his interest. | D.Drawings for Mr. Tillman. |
| A.tell his teacher all about his invention |
| B.show Mr. Tillman about his idea by drawings |
| C.send pictures through air |
| D.make other people see things by pictures |
| A.did his work well as an office boy |
| B.was quite different from other office boys |
| C.was shy and did not work hard |
| D.was also interested in Philo’s drawings |
| A.listened to Mr. Everson politely |
| B.became more interested in the businessman |
| C.seemed to change his idea |
| D.looked like a scientist |
| A.Philo made his television only four years later. |
| B.Mr. Everson helped Philo to invent the television with his own money. |
| C.Mr. Everson himself was an important businessman. |
| D.The businessmen in Salt Lake City gave Philo the money for his invention. |
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