阅读理解

　　Some inventions are so useful, but seem so simple, that we wonder why no one thought of them long ago. Post-it Notes—the pieces of pa per that you can fasten almost anywhere and then remove without leaving any sign that they were there—are an example of such an invention.

　　Post-it Notes were invented about twenty years ago by Art Fry, a scientist at 3M Corporation. The idea for the product came from a frustrating(令人沮丧的) experience he often had while singing in his church choir(唱诗班) . Fry used pieces of paper as bookmarks to mark the places in his book of songs, but these bookmarks were always falling out. He knew he needed a bookmark that would stay where he put it, but that he could remove without damaging the pages.

　　Around the time Fry lard about a new adhesive (粘合剂) that a (同事) , Dr. Spence Silver, had created. This adhesive was special because it was sticky, but not too sticky. It was strong enough to hold papers together, but weak enough not to tear the paper when it was removed. Fry saw that the new adhesive could help solve his bookmark problem. One morning, Fry put some of the adhesive on the edge of a piece of paper. Just as he hoped, it made a perfect bookmark.

　　Fry and some other people at 3M believed so much in the new product that they persuaded the company to give away thousands of the “sticky pieces of paper” for trial use. When some salespeople at 3M went to offices and showed workers just how helpful the new type of notes could be, they immediately received many orders. As more and more people discovered how useful Post-it Notes could be, the product took off.

1．The invention of Post-it Notes showed that Art Fry ________ .

[　　]

A．had a lot of knowledge

B．was very hard-working

C．was good at creative thinking

D．loved his job at the church

2．In what way did Dr. Spence help Art Fry?

[　　]

A．They worked together and 'ten discussed science.

B．His invention of a special adhesive made Fry's invention possible.

C．He persuaded 3M Corporation to give away lots of Post-it Notes for trial use.

D．He co-operated with Fry by providing the new adhesive for him.

3．Which of the following is a possible use of Post-it Notes?

[　　]

A．An email to a friend.

B．An ad in a newspaper.

C．A note on a friend's door.

D．A postcard from abroad.

4．The underlined words“took off” mean ________.

[　　]

A．became popular quickly

B．had even more uses

C．disappeared from the market

D．started to leave the ground

阅读理解

　　While the artificial (man－made) hand is considerably less useful than the natural one, there may be some jobs that it can do more efficiently. From time to time we have to do rather difficult jobs and feel that one of our fingers is getting in the way. It is possible that on these occasions a specially designed artificial limb(肢体) would be more efficient.

　　Scientists are now studying ways of increasing the power of the human limb, or rather, of its muscles. A machine under development, known as a “man－amplifier(放大器)” consists of a framework which the operator wears. Every movement he makes is repeated by the steel framework he is wearing, but the power which moves the parts of the frame comes from hydraulic(水力的) motors. If the operator bends down to pick something up, the work is done not by his own weak muscles but by the hydraulic motors, which makes it possible for him to lift 450 kilograms in each hand.

　　Another machine called a “HardiMan” has two arms and hands which repeat every movement of the operator's arms and hands, but with much more strength. In this device(装置) the operator controls the movements directly. But just as the operations of a distant unmanned spaceship circling the moon can be controlled by radio signals, so also such devices could be radio－controlled. An astronaut exploring an unknown planet could send out a robot which would do the job for him and send back information. Will the day ever come when the machine, more powerful than man and controlled by a computer brain, takes over from its human inventor?

1．This passage is mainly about ________.

[　　]

A．the weakness of the human limb

B．the power and strength of the artificial hand

C．the use of robots in industry

D．the operation of the artificial hand in space exploration

2．According to the passage, the artificial hand is ________.

[　　]

A．better than the natural hand and very widely used

B．slower in doing some rather difficult jobs

C．operated by a strong man

D．being tried and tested to help people in some ways

3．In the passage, the writer tells us that a “man－amplifier” and a “HardiMan” ________.

[　　]

A．are both driven by hydraulic motors

B．are both controlled by radio signals

C．move as their operators' hands do

D．make it possible to work without natural hands

4．The advantage of a “HardiMan” over a “man－amplifier” mentioned in the passage is ________.

[　　]

A．it can be controlled from a distance

B．it can work with more strength and pick up more weight

C．it is more powerful and easier to operate

D．it is smaller in size

5．The writer of this passage believes that ________.

[　　]

A．artificial hands can take the place of natural ones in doing certain jobs with greater efficiency

B．man seems powerless in face of machines

C．natural hands cannot be compared with artificial. ones

D．machines will eventually(必定) get out of the control of their human inventors

阅读理解

　　Some inventions are so useful, but seem so simple, that we wonder why no one thought of them long ago. Post-it Notes--the pieces of paper that you can fasten almost any where and then remove without leaving any sign that they were there--are an example of such an invention.

　　Post-it Notes were invented about twenty years ago by Art Fry, a scientist at 3M Corporation. The idea for the product came from a frustrating(令人沮丧的)experience he often had while singing in his church choir(唱诗班). Fry used pieces of paper as bookmarks to mark the places in his book of songs, but these bookmarks were always falling out. He knew he needed a bookmark that would stay where he put it, but that he could remove without damaging the pages.

　　Around that time, Fry heard about a new adhesive(粘合剂) that a colleague(同行), Dr. Spence Silver, had created. This adhesive was special because it was sticky，but not too sticky. It was strong enough to hold papers together, but weak enough to not tear the paper when it was removed. Fry saw that the new adhesive could help solve his bookmark problem. One morning, Fry put some of the adhesive on the edge of a piece of paper. Just as he hoped, it made a perfect bookmark.

　　A short time later, Fry realized that his new invention had even more uses than being a great bookmark. He came to this realization when he wrote a note on one of his new“bookmarks”and attached(附着)it to a report he was going to give to a colleague. Soon, co-workers were asking Fry for more samples(样品)of his invention so that they could use the new type of notes themselves.

　　Fry and some other people at 3 M believed so much in the new product that they persuaded the company to give away thousands of the“sticky pieces of paper”for trial use. When some salespeople at 3M went to offices and showed workers just how helpful the new type of notes could be, they immediately received many orders. As more and more people discovered how useful Post-it Notes could be, the product took off.

1．The invention of Post-it Notes showed that Art Fry _____.

[　　]

A．had a lot of knowledge

B．was very hard-working

C．was good at creative(创造性的)thinking

D．loved his job in the church

2．In what way did Dr. Spence help Art Fry?

[　　]

A．They worked together and often discussed science.

B．His invention of a special adhesive made Art's invention possible.

C．He persuaded 3M Corporation to give away lots of Post-it Notes for trial use.

D．He cooperated with Art by providing the new adhesive for Art.

3．Which of the following is a possible use of Post-it Notes?

[　　]

A．A note on a friend's door.

B．An e-mail to a friend.

C．A postcard from abroad.

D．An ad in a newspaper.

42The underlined phrase“took off”means _____.

[　　]

A．started to leave the ground

B．disappeared from the market

C．had even more uses

D．became popular very quickly

阅读理解

　　Some inventions are so useful, but seem so simple, that we wonder why no one thought of them long ago. Post－it Notes－the pieces of paper that you can fasten(固定)almost anywhere and then remove without leaving any sign that they were there=are an example of such an invention.

　　Post－it Notes were invented about twenty years ago by Art Fry, a scientist at 3M Corporation. The idea for the product came from a frustrating(令人沮丧的)experience he often had while singing in his church choir(唱诗班). Fry used pieces of paper as bookmarks to mark the places in his book of songs, but these bookmarks were always falling out. He knew he needed a bookmark that would stay where he put it, but that he could remove without damaging the pages.

　　Around that time, Fry heard about a new adhesive(粘合剂)that a colleague(同行), Dr. Spence Silver, had created. This adhesive was special because it was sticky, but not too sticky. It was strong enough to hold papers together, but weak enough to not tear the paper when it was removed. Fry saw that the new adhesive could help solve his bookmark problem. One morning, Fry put some of the adhesive on the edge of a piece of paper. Just as he hoped, it made a perfect bookmark.

　　A short time later, Fry realized that his new invention had even more uses than being a great bookmark. He came to this realization when he wrote a note on one of his new “bookmarks” and attached(附着)it to a report he was going to give to a colleague. Soon, co－workers were asking Fry for more samples (样品)of his invention so that they could use the new type of notes themselves.

　　Fry and some other people at 3M believed so much in the new product that they persuaded the company to give away thousands of the “sticky pieces of paper” for trial(试验)use. When some salespeople at 3M went to offices and showed workers just how helpful the new type of notes could be, they immediately received many orders. As more and more people discovered how useful Post－it Notes could be, the product took off.

1．The invention of Post－it Notes showed that Art Fry ________.

[　　]

A．had a lot of knowledge

B．was very hard－working

C．was good at creative(创造性的)thinking

D．loved his job in the church

2．In what way did Dr. Spence help Art Fry?

[　　]

A．They worked together and often discussed science.

B．His invention of a special adhesive made Art's invention possible.

C．He persuaded 3M Corporation to give away lots of Post－it Notes for trial use.

D．He cooperated with Art by providing the new adhesive for Art.

3．Which of the following is a possible use of Post－it Notes?

[　　]

A．A note on a friend's door.

B．An E－mail to a friend.

C．A postcard from abroad.

D．An ad in a newspaper.

4．The underlined phrase “too off” means ________.

[　　]

A．started to leave the ground

B. disappeared from the market

C. had even more uses

D．became popular very quickly

4．The biggest advantage of Post－it Notes is ________.

[　　]

A．it can stay anywhere and leave no sign when removed

B．it is very cheap to use

C．it is good to write notes on

D．it is very thin and beautiful