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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."
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

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

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

Who will welcome the device most?

A．Shopkeepers.

B．The police.

C．Young people.

D．The producer.

Luo Gaoqi hopes to join the increasing number of Chinese students in the United States because he wants the experience of studying in a foreign land as it will help his future job at home. “I want to try Western education because people there think differently,” said the 21-year-old who is in his final year of undergraduate studies. “I also hope to meet friends from different cultures. The social connections may help in the future.”
The latest report from the US-based institute of International Education said China, for the first time, has become the top country of origin for international students in the United States.
For Yang Fan, a journalism student, said studying in the United States is a way to escape the competition for places in China’s top universities.
“Due to limited education resources, only about 60 percent of high school graduates in China enter college, and a much lower rate enters the top-level ones. “A foreign degree will definitely help when I seek a job in China,” Yang said.
Both Yang’s and Luo’s parents are supportive of them studying abroad. Neither of them is thinking of settling down in the United States after graduation.
“It is not realistic to do so. As a journalism student, there would be no advantage for me to work in the United States,” Yang said. “But in China, with a US degree and good English, I may stand out against other students who have only studied in China.”
China still needs to improve its environment for scientists and high-level talents, said Xiao Mingzheng, director of the Center for Human Resource Development and Management Research of Peking University, adding that, in particular, the country needs to improve its policies relating to research environments.
In June, the Chinese government published a plan concerning talent development for the next 10 years. In it, it has improved policies and increased budgets to attract talented students back home.
Why does Luo Gaoqi wants to study in a foreign land according to his words?

A．Because the people there are more intelligent.

B．Because the foreign countries are more developed.

C．Because he can make more friends there.

D．Because the culture there is different from that in China.

What do Guo Gaoqi and Yang Fan have in common?

A．Their major is the same, which is journalism.

B．Both of them want to go back to China after graduation.

C．Their parents are against their decision.

D．They are forced to study in a foreign land by their parents.

From the passage, we can infer that _______.

A．scientists and high-level talents need a better environment in China

B．the students abroad are unwilling to go back to China

C．China doesn’t need those people to come back to our country at all

D．we all need to go abroad to study and then serve our own country

To American visitors, Iceland is a very interesting country, partly because it is different in so many ways from what he or she is used to seeing at home. There are quite a few things that are not done, or that do not exist on the island - quite a few "No's".
There is no pollution, for instance. No dogs are permitted in Reykjavik, the capital. There is no television on Thursdays or during the entire month of July, and only three hours of black-and-white TV the rest of the time. There is no hard liquor on Wednesdays and no beer at any time. There are no handguns; only one jail of thirty-five cells（牢房） in the entire land – an admirable figure, even for a small country of 313,376 people.
There is no army, air force or navy. There is no tipping for anything. There are no large stores open on Saturdays or Sundays. Since Iceland is situated just under the Arctic Circle, there is no darkness in summer and do daylight in winter. But thanks to Gulf Stream, the climate is rather mild, with temperatures ranging from 34 degrees Fahrenheit to 52 degrees in July.
The rules on television, liquor, and guns are the result of governmental decision. But the absence of pollution is due in great part to the fact that Iceland gets its power from the enormous geyser（间歇泉）and the thousands of hot springs that come out of the ground. They provide all the energy needed by the country. In fact, Iceland uses only 3 percent of all its available power.
Iceland has been described as a democratic (民主的) independent country where more fish are caught and more books published per person than anywhere else in the world. The Icelanders have always felt a particular love for literature. They composed their first works in the ninth and tenth centuries AD. These works were poems and tales about the kings, heroes, and heroines of Iceland and Norway. At first the stories were memorized and passed from generation to generation. The Icelanders have never stopped writing ever since. “Rather shoeless than bookless," they proudly say.
American visitors enjoy visiting Iceland probably because.

A．no dogs are permitted in the capital

B．the police do not carry handguns

C．it is very different from America

D．the climate is rather mild.

The following statements are true EXCEPT.

A．there are no soldiers in Iceland

B．the Icelanders don't drink beer

C．there is no service fee of any kind

D．there are no crimes in Iceland

There is no pollution in Iceland mainly because .

A．Iceland uses only 3 percent of all its available power

B．the Icelanders use hot water from the ground below as their energy

C．it is located just under the Arctic Circle

D．it is a democratic independent country

"Rather shoeless than bookless" means.

A．they regard books more important than shoes.

B．they would rather have shoes on than write books

C．they prefer traveling to reading

D．they prefer not to have shoes or books

Have you ever thought of taking a train and having an adventure？Riding the train can be a real adventure. That is how I feel every time I take Amtrak. I often take a four-hour trip to visit my children. Every time I take this trip I never know what will happen.
Last week when I was on the train, there was a man sitting by himself in the back of the train carrying on a mobile phone conversation—in another language. It was loud and disturbed most of the people on the train. I think it was annoying.
Fortunately I sat next to a wonderful old lady who was taking a two-day trip by train. She said her two daughters were worried at the thought of driving for three days to reach her home, although she had no trouble driving. The train ride was the only choice for her. She loved to look out of the window and watch the world go by on the train.
She was fun to talk to and asked me when my children started being parents. That is a very good question. Both of us are old and have children. She asked that same question from time to time.
There are always many people on the train from all walks of life, different countries, and many languages. Riding the train is a great way to increase your knowledge and learn all kinds of cultures. If you get hungry, you can buy food in the food car at any time. If you need to use the restroom, there is always one for you.
It surely beats driving the car, which has to stop for food and restrooms. And it is better than taking the bus.
According to the passage, the purpose of the author’s train ride was ______.

A．to do business	B．to see her children
C．to visit places of interest	D．to see her old friends

In the author’s opinion, on the train Amtrak ______.

A．the services are quite good	B．the food is terribly expensive
C．all the passengers are polite	D．all the passengers are American

What is the best title for this passage?

A．A painful experience on the train	B．A wonderful lady
C．Train ride—a cultural experience	D．The history of Amtrak

Because of the change in the American public school system over the last several years, now many parents choose to home-school their children. There are many reasons behind this. Let’s take a look at a few of them.
For some parents, they have religious (宗教的) reasons for home-schooling. The public school system does not have religious teachings, so these parents want to put religion into the children’s daily school activities. This might include teaching religion-based courses rather than coursework that is taught in public schools.
For some parents, they do not feel that their local school system offers their children the best learning opportunities. So they want to take matters into their own hands. This may be because the local school has low educational standards (标准) or for some other reason the parents think it necessary to take their children out of the system. Sometimes the parents just feel the children will get a better education at home.
Some parents may not be rich enough to send their children to a private school, so the next best thing in their eyes is home-schooling. Thus they can teach their children what they like.
One should remember that the laws about home-schooling vary from state to state. In some states, the parents are required to hand in monthly attendance records (出席记录) to their local school system. What’s more, most states require state testing at certain periods such as the CRCT.
The writer wrote this passage mainly to _______.

A．advise parents to home-school their children

B．explain why some parents choose to home-school their children

C．tell us the advantages and disadvantages of home-schooling

D．praise home-schooling and private schools

Paragraph 3 tells us that some parents choose home-schooling because ______.

A．school teachers are not strict with their children

B．their children don’t do well in their studies at school

C．their children don’t like going to school

D．they are not satisfied with the school education

What does the underlined word “vary” in the last paragraph mean?

A．Increase

B．Change

C．Spread

D．Keep

How many reasons for home-schooling are mentioned in the passage?

A．2

B．4

C．3

D．5