The mobile phone has become a problem for high schools. Some high-school students in Australia are not allowed to carry mobile phones during school hours.

The mobile phone used among children has become a problem for the school years. Several children have got mobile phones as Christmas presents, and more students want them. Marry Brown, a headmaster, said that the mobile phone was a distraction to students during school hours and it also gave teachers so much trouble in their classrooms. Teachers also say that sometimes students might use phone messages to cheat during exams.

She said some schools had tried to ban mobile phones. Some parents felt unhappy because they couldn't get in touch with their children.

Many teachers said students should not have mobile phones at school, if there was a good reason, they could leave their phones at school office. They also said phones were easily lost and were a distraction for studies.

Many people say that they understand why parents would want their children to have phones, but they think schools should let students know when they can use their mobile phones.

1.Some high schools in Australia have stopped students from carrying mobile phones __­­­­­__

A. because they are students

B. when they are at school

C. when they are free

D. because they are children

2.What does the underlined word " distraction " mean in Chinese in this passage?

A. 分散注意力的事 B. 吸引人的事

C. 让人高兴的事 D.让人沮丧的事

3.The headmaster, Marry Brown said that the mobile phone was ____to students at school.

A. a useful tool B. a bad thing

C. a good thing D. of some help

4.Some parents felt unhappy, because they couldn't__________ during school hours.

A. use their mobile phones

B. leave their mobile phones in the school office

C. get in touch with their children

D. help the teachers with their work

5.The passage tells us that________

A. parents should teach their children how to use mobile phones during school hours

B. it is important to ban students from using mobile phones at school

C. some parents felt unhappy because they couldn't use their phones at home

D. students shouldn't have mobile phones at school except for some special reasons

As Artificial Intelligence(AI) becomes increasingly sophisticated, there are growing concerns that robots could become a threat. This danger can be avoided, according to computer science professor Stuart Russell, if we figure out how to turn human values into a programmable code.

Russell argues that as robots take on more complicated tasks, it’s necessary to translate our morals into AI language.

For example, if a robot does chores around the house, you wouldn’t want it to put the pet cat in the oven to make dinner for the hungry children. “You would want that robot preloaded with a good set of values,” said Russell.

Some robots are already programmed with basic human values. For example, mobile robots have been programmed to keep a comfortable distance from humans. Obviously there are cultural differences, but if you were talking to another person and they came up close in your personal space, you wouldn’t think that’s the kind of thing a properly brought-up person would do.

It will be possible to create more sophisticated moral machines, if only we can find a way to set out human values as clear rules.

Robots could also learn values from drawing patterns from large sets of data on human behavior. They are dangerous only if programmers are careless.

The biggest concern with robots going against human values is that human beings fail to so sufficient testing and they’ve produced a system that will break some kind of taboo(禁忌).

One simple check would be to program a robot to check the correct course of action with a human when presented with an unusual situation.

If the robot is unsure whether an animal is suitable for the microwave, it has the opportunity to stop, send out beeps(嘟嘟声), and ask for directions from a human. If we humans aren’t quite sure about a decision, we go and ask somebody else.

The most difficult step in programming values will be deciding exactly what we believe in moral, and how to create a set of ethical rules. But if we come up with an answer, robots could be good for humanity.

1.What does the author say about the threat of robots?

A. It may constitute a challenge to computer progranmers.

B. It accompanies all machinery involving high technology.

C. It can be avoided if human values are translated into their language.

D. It has become an inevitable peril as technology gets more sophisticated.

2.What would we think of a person who invades our personal space according to the author?

A. They are aggressive.B. They are outgoing.

C. They are ignorant.D. They are ill-bred.

3.How do robots learn human values?

A. By interacting with humans in everyday life situations.

B. By following the daily routines of civilized human beings.

C. By picking up patterns from massive data on human behavior.

D. By imitating the behavior of property brought-up human beings.

4.What will a well-programmed robot do when facing an unusual situation?

A. keep a distance from possible dangers.

B. Stop to seek advice from a human being.

C. Trigger its built-in alarm system at once.

D. Do sufficient testing before taking action.

5.What is most difficult to do when we turn human values into a programmable code?

A. Determine what is moral and ethical.

B. Design some large-scale experiments.

C. Set rules for man-machine interaction.

D. Develop a more sophisticated program.

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Most people feel lonely sometimes, but it usually only lasts between a few minutes and a few hours. 1. In fact, it is quite normal. For some people, though, loneliness can last for years. Psychologists are studying this complex phenomenon, and have identified three different types of loneliness.

The first kind of loneliness is temporary. This is the most common type. It usually disappears quickly and does not require any special attention. The second kind, situation-for example, family problem, the death of a loved one, or moving to a new place. 2.

The third kind of loneliness is the most severe. Unlike the others, chronic (the opposite of "temporary")usually lasts more than two years and has no specific cause. 3. Unfortunately, many chronically lonely people think there is little or nothing they can do to improve their condition.

Psychologists agree that one important factor in loneliness is a person's social contacts, for example, friends, family members, co-workers, etc. We depend on various people for different reasons. For instance, our families give us emotional support, our parents and teachers give us guidance, and our friends share similar interests and activities. However, psychologists have found that, though lonely people may have many social contacts, they sometimes feel they should have more.4..

Psychologists are trying to find ways to help habitually lonely people for two reasons. They are unhappy and unable to socialize and there is a connection between chronic loneliness and serious illness as heart disease. 5.

A. It is very difficult to deal with.

B. What's more, temporary and situational loneliness can be a sad, and sometimes dangerous condition.

C. Although it can cause physical problems? such as headaches and sleeplessness, it usually does not last for more than a year.

D. This kind of loneliness is not serious.

E. They don' t think they are in need of them.

F. People who experience it have problems socializing and becoming close to others.

G. They question their popularity.

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