Light waves are electromagnetic, ________ are radio waves.


  1. A.
    same
  2. B.
    such
  3. C.
    so
  4. D.
    as
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科目：高中英語 來源：英語教研室 題型：050

The making of glass is a very old industry—at least 4 500 years old. Glass has many extraordinary qualities and it is frequently being used in new ways. One of the most interesting new uses for glass is in telephone communication. Scientists have developed glass fibers as thin as human hair which are designed to carry light signals. When the light reaches the other end, it is first changed into electrical signals, which are in turn converted(轉(zhuǎn)變) into sound messages. Called light wave communication， the new system was used successfully in an experiment in Chicago in 1977. During the experiment two glass fibers were able to carry 672 conversations at the same time. The light wave cable, containing 144 glass fibers, has the capacity(容量) to carry 50 000 conversations at the same time. The light wave communication system has two important advantages. First the glass fiber cables are smaller and weigh less than copper(銅) cables; second, they cost less.

1. One of the extraordinary qualities of glass is that it can carry_______.

A. any signal    　　　　　　　　　　　　　　　　　　  B. light signals

C. sound signals    　　　　　　　　　　　　　　　　 D. electrical signals

2. Before you can hear a message on the telephone using the new system_______.

A. the light signals have to be changed into electrical sound

B. neither the light nor the electrical signals have to be changed in any way

C. light must first be changed into electrical signals and then into sound

D. electrical signals must first be changed into light signals and then into sound

3. According to the passage the new telephone communication system_______.

A. was put on experiment in 1977

B. had been put into actual use by 1977

C. had been repeatedly experimented before 1977

D. was first put into actual use in 1977

4. From the passage, you can tell that people prefer glass fiber cables to copper cables because_______.

A. glass fiber is easier to make

B. glass fiber is less expensive

C. glass fiber is more up to date

D. glass fiber delivers messages directly

5. Which of the following statements best expresses the main idea of the passage?

A. Light signals have changed the use of glass in industry.

B. Glass fibers have reduced the cost of telephone communication.

C. Glass is very useful because it has many unusual qualities.

D. The use of glass fibers to carry telephone messages is an interesting new development.

 

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科目：高中英語 來源： 題型：051

The making of glass is a very old industry—at least 4 500 years old. Glass has many extraordinary qualities and it is frequently being used in new ways. One of the most interesting new uses for glass is in telephone communication. Scientists have developed glass fibers as thin as human hair which are designed to carry light signals. When the light reaches the other end, it is first changed into electrical signals, which are in turn converted(轉(zhuǎn)變) into sound messages. Called light wave communication， the new system was used successfully in an experiment in Chicago in 1977. During the experiment two glass fibers were able to carry 672 conversations at the same time. The light wave cable, containing 144 glass fibers, has the capacity(容量) to carry 50 000 conversations at the same time. The light wave communication system has two important advantages. First the glass fiber cables are smaller and weigh less than copper(銅) cables; second, they cost less.

1. One of the extraordinary qualities of glass is that it can carry_______.

A. any signal    　　　　　　　　　　　　　　　　　　  B. light signals

C. sound signals    　　　　　　　　　　　　　　　　 D. electrical signals

2. Before you can hear a message on the telephone using the new system_______.

A. the light signals have to be changed into electrical sound

B. neither the light nor the electrical signals have to be changed in any way

C. light must first be changed into electrical signals and then into sound

D. electrical signals must first be changed into light signals and then into sound

3. According to the passage the new telephone communication system_______.

A. was put on experiment in 1977

B. had been put into actual use by 1977

C. had been repeatedly experimented before 1977

D. was first put into actual use in 1977

4. From the passage, you can tell that people prefer glass fiber cables to copper cables because_______.

A. glass fiber is easier to make

B. glass fiber is less expensive

C. glass fiber is more up to date

D. glass fiber delivers messages directly

5. Which of the following statements best expresses the main idea of the passage?

A. Light signals have changed the use of glass in industry.

B. Glass fibers have reduced the cost of telephone communication.

C. Glass is very useful because it has many unusual qualities.

D. The use of glass fibers to carry telephone messages is an interesting new development.

 

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科目：高中英語 來源：三點一測叢書　高中英語　必修1(河北教育版課標本) 冀教版 題型：050

閱讀理解

The making of glass is a very old industry at least 4, 500 years old．Glass has many extraordinary qualities and it is frequently being used in new ways．One of the most interesting new uses for glass is in telephone communication．Scientists have developed glass fibres as thin as human hair which are designed to carry light signals．When the light reaches the other end, it is first changed into electrical signals, which are in turn converted(轉(zhuǎn)變)into sound messages．Called lightwave communication, the new system was used successfully in an experiment in Chicago in 1977．During the experiment two glass fibres were able to carry 672 conversations at the same time．The light wave cable, containing 144 glass fibres, has the capacity(容量)to carry 50, 000 conversations at the same time．The lightwave communication system has two important advantages．First the glass fibre cables are smaller and weigh less than copper(銅)cables; second, they cost less．

(1)

One of the extraordinary qualities of glass is that it can carry ________．

[　　]

A．

any signal

B．

light signals

C．

sound signals

D．

electrical signals

(2)

Before you can hear a message on the telephone using the new system ________．

[　　]

A．

the light signals have to be changed into electrical sound

B．

neither the light nor the electrical signals have to be changed in any way

C．

light must first be changed into electrical signals and then into sound

D．

electrical signals must first be changed into light signals and then into sound

(3)

According to the passage the new telephone communication system ________．

[　　]

A．

was put on experiment in 1977

B．

had been put into actual use by 1977

C．

had been repeatedly experimented before 1977

D．

was first put into actual use in 1977

(4)

From the passage, you can tell that people prefer glass fibre cables to copper cables because ________．

[　　]

A．

glass fibre is easier to make

B．

glass fibre is less expensive

C．

glass fibre is more up to date

D．

glass fibre delivers messages directly

(5)

Which of the following statements best expresses the main idea of the passage?

[　　]

A．

Light signals have changed the use of glass in industry．

B．

Glass fibres have reduced the cost of telephone communication．

C．

Glass is very useful because it has many unusual qualities．

D．

The use of glass fibres to carry telephone messages is an interesting new development．

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科目：高中英語 來源： 題型：閱讀理解

     At Dallas/Fort Worth Airport, the lights are controlled by sensors that measure sunlight. They dim immediately when it's sunny and brighten when a passing cloud blocks the sun.

     A wall of windows at a University of Pennsylvania engineering building has built-in blinds (百葉窗) controlled by a computer program that follows the sun's path.

    Buildings are getting smarter -- and the next generation of building materials is expected to do even more.

     Windows could catch the sun's energy to heat water. Sensors that measure the carbon dioxide breathed out by people in a room could determine whether the air conditioning needs to be turned up.

     Many new materials and technology have been designed in the last 15 years. They now being used in a wave of buildings designed to save as much energy as possible. They include old ideas, like "green roofs," where a belt of plants on a roof helps the building keep heat in winter and stay cool in summer, and new ideas, like special coating for windows that lets light in, but keeps heat out.

     As technologies such as sensors become cheaper, their uses spread.

     The elevators (電梯) at Seven World Trade Center, which is under construction in New York, use a system that groups people traveling to nearby floor into the same elevator, thus saving elevator stops. People who work in the building will enter it by swiping (刷) ID cards that will tell the elevators their floor; readouts will then tell them which elevator to use. The building also has windows with a coating that blocks heat while letting in light.

    More new building materials and technology are in development. A Philadelphia building firm is now working on "smart wrap" that uses tiny solar collectors to catch the sun's energy and transmitters (傳輸器) the width of a human hair to move it. They are expected to change the face of the construction industry in the next ten years or so.

72. ______ will be developed and used in the construction industry.

     A. "Green roofs" that cool or heat buildings

     B. "Smart wrap" that catches the sun's energy

     C. Sunlight-measuring sensors that control lights

     D. Window coating that lets light in, but keeps heat out      

73. The elevators at Seven World Trade Center are special because they can ___

     A. send people to floors with fewer stops

     B. teach people how to use their ID cards

     C. make people stay very cool in summer

     D. help people go traveling in the building               

74. The underlined word “it” in the last paragraph refers to _____.

     A. a human hair                   B. smart wrap

     C. the sun's energy             D. a transmitter          

75. What might be the most suitable title for the text?

     A. Buildings Are Becoming Smarter

     B. Buildings Are Getting More Sunlight

     C. Buildings Are Lacking in Much Energy

     D. Buildings Are Using Cheaper Materials

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科目：高中英語 來源： 題型：閱讀理解

The making of glass is a very old industry — at least 4,500years old. Glass has many extraordinary qualities and it is often being used in new ways.

One of the most interesting new uses for glass is in telephone communication. Scientists have developed glass fibers as thin as human hair which are designed to carry light signal. When the light reaches the other end, it is first changed into electrical signals, which are in turn changed into sound messages.

Called light wave communication, the new system was used successfully in an experiment in Chicago in 1977. During the experiment, two glass fibers were able to carry 672 conversations at the same time. The light wave cable, containing 144 glass fibers, is able to carry 50,000 conversations at the same time.

The light wave communication system has two important advantages. First, the glass fiber cables are smaller and weigh less than copper cables. Second, they cost less.

Perhaps it can be said that telephone communication has entered the age of light.

1．According to the passage, people started to make glass             .

       A．4,500 years ago                                   B．no less than 4,500 years ago

C．less than 4,500 years ago                      D．nearly 4,500 years ago

2．One of the extraordinary qualities of glass is that it can carry          .

       A．sound signals       B．light signals          C．electric signals     D．a(chǎn)ny signals

3．According to the passage the new telephone communication system       .

       A．has been put into actual use

       B．was put into actual use in 1977

       C．was put on experiment in 1977

       D．had been repeatedly experimented on before 1977

4．Which of the following statements best expresses the main idea of the passage?

       A．Glass is very useful because it has many unusual qualities．

       B．Light signals have changed the use of glass in industry．

       C．Glass fibres have reduced the cost of telephone communication．

       D．The use of glass fibres to carry telephone messages is an interesting new development．

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