摘要:The system reduced the number of accidents on the road. T F

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London, Reuters--What could annoy teenagers enough to make them stop hanging out with friends and go home?

No, it's not a visit from their mothers, and not a threat to take away their cellphones or pocket money.

It's high-frequency noise. The UK police recently agreed to use a device (装置) called the Sonic Teenager Deterrent. It sends out a sound that makes teenagers become so impatient and angry that they have to cover their ears tightly and walk away.

The sound is at extreme high-pitch that can be heard by those under 20. The body's natural ability to detect some wave bands decreases almost entirely after 20, so few adults can hear the sounds. The black-box device, nicknamed the Mosquito because of its sound, can be fixed to the outside walls of shops, offices and homes. It sounds to youngsters like a crazy insect or a badly played violin. But it causes no physical damage.

A number of police forces and councils have given permission to use the system and want to install (安装) it at trouble spots.

Staffordshire Police Inspector Amanda Davies, who has given the device to shopkeepers in the Moorlands area, said," It is controlled by the shopkeepers--if they can see through their window that there is a problem, they turn the device on for a while until the group has run away."

1.The device can be used to _______.

A.threaten teenagers in public

B.drive away trouble-makers under 20

C.help mothers control their teenage children

D.help the police control shopkeepers

2.From the passage we can know that _______.

A.young people often suffer from pains in ears

B.shopkeepers are troubled by noisy insects

C.high-frequency noise is beyond the listening ability of people over 20

D.the police invented a new device to deal with teenagers

3.The purpose of the writer to write the passage is ______.

A.to advertise a new hi-tech device

B.to tell the reader a piece of news

C.to sell the device to shopkeepers

D.to inform the public as the spokesman of the police

4.Who will welcome the device most?

A.Shopkeepers.      B.The police.         C.Young people.      D.The producer.

 

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In the US and Britain, the slogan around colleges was “Save water. Shower with a friend.” Now, Wuhan University has come up with another system for the campus bathhouse. It charges students for the amount of time in a shower. Before entering the bathhouse, students pay for the amount of time they want in the shower with cash or their student ID card. The clock starts ticking the minute the tape is turned on. It pauses when a button is pressed for soap. An integrated circuit(IC) card reader at each tap shows the time. No money, no water. The benefits of the new system can be seen with the old system, which charged 1 Yuan for each person regardless of time in the shower. The university used about 320 tones of water daily under the old system, but only 160 tons now.

Many students use the new system but opinions on it are divided. Some students say it is bad because bathing had become a sort of race. Many people using it for the first time are not sure how long they need to shower. Some might be embarrassed if their time is up and they’re still covered in soap. They have to ask the bathhouse worker to help them buy extra time.

“It’s a flaw in the system that you can not buy extra time on the ID card,” said Ren, a freshman in Wuhan University. The university is also considering some students’ suggestions that they be allowed to pay after they’ve finished the shower. Not surprisingly, some are complaining about losing the hour shower. But many students say the move helps them develop a water-saving sense.

Without the time limits, most students tended to shower for 30 to an hour in the bathhouse.

Some even used the hot water to wash their clothes. “In my experience, 10-20 minutes is enough,” said Dai Zhihua, a third-year student who usually takes 8 minutes.

A similar system has been installed in other universities. Shanghai Normal University introduced it at its Fengxiang Campus in September. The bathing fee there is 0.2 Yuan per minute. One male student responded by setting a record with a two-minute shower.

1. According to the passage, which of the following is NOT true?

A. Students pay for the amount of time they want in the shower.

B. The clock times all through while the student is bathing except when the bather paused for soap.

C. If money runs out, there will be no water.

D. Having finished bathing, the student has to pay for it.

2. The underline word “flaw” (Paragraph3) most probably means______.

A. perfection         B. advantage                 C. pity                         D. fault

3. Since the new system has performed, ______ of water can be saved.

A. a quarter                  B. one third                  C. one half                   D. two thirds

4. It can be inferred from the passage that______.

A. the new operation can solve the water crisis.

B. The new operation can raise students’ environmental awareness.

C. a similar operation has been set in other universities.

D. The university has saved a lot of water by using the new system.

5. In which column can you find this passage?

A. People.         B. Society         C. Campus Life.    D. Lifestyle.

 

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His first successful fight was for the equal rights of black people in South Africa. Then, as the first black president, he fought to unite the country and organize the government. Now Nelson Mandela has set his sights on a new enemy, AIDS.

On March 19 the 82-year-old, former president, hosted his second AIDS-awareness concert. He warned that 25 million people in Africa were already infected with the fatal disease.

Mandela was born in a small village in South Africa in 1918. He was adopted by the chief of his tribe and could have been a chief himself and lived a happy country life.

But he refused to be a chief when his people lived under racial discrimination(歧视). He decided to fight for equal rights for all the people in South Africa. Before 1990, under the country’s Racial Segregation Law, colored and white people lived separately. Black people were treated unfairly even when taking a bus. Blacks had to stand at the back of the bus to make room for white people even when there were only a few of them on board.

For his opposition to the system, Mandela was arrested and spent 27 years in prison. He was freed in 1990 and became the president of the country after the first election were held in which everyone could vote.

Mandela was not only a political fighter who attacked with speeches. He was also a trained boxer and fought in the ring when he was young.

“Although I did not enjoy the violence of boxing, I was interested in how one moved one’s body to protect oneself, how one used a strategy both to attack and retreat”, he wrote in his autobiography.

As a skillful fighter, he chose music as his weapon against AIDS. He hopes to win another victory against AIDS.

1.When was Mandela arrested? 

A. In 1963                                                                         

B. In 1990

C. When he refused to be a chief                      

D. When he became the president

2.Nelson Mandela succeeded in doing the following except _______.     

A. winning the equal rights for the black people in South Africa

B. Uniting South Africa

C. organizing a government in South Africa

D. controlling the spread of AIDS

3.If Nelson Mandela hadn’t fought against racial discrimination, he_______. 

A. could have been the president of South Africa

B. could still have lived a happy life

C. could have been in a difficult situation

D. would have been an excellent boxer

4.Which of the following statements can best describe the life of Nelson Mandela?

A. struggle is his life

B. sports make his fame

C. fight for equal rights

D. a great fighter against government.

 

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