You never see him, but they're with you every time you fly. They record where you are going, how fast you're traveling and whether everything on your airplane is functioning normally. Their ability to endure almost any disaster makes them seem like something out of a comic book. They're known as the black box.
　When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India ocean on June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the box's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.
　In 1958, Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first mode for a black box, which became a requirement on all U.S. commercial flights by 1960. Early models often failed to withstand crashes, however, so in 1965 the box was completely redesigned and moved to the rear of the plane – the area least subject to impact – from its original position in the landing wells (起落架舱). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility.
　Modern airplanes have two black boxes: a voice recorder, which tracks pilots' conversations, and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft's final moments. Placed in an insulated (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can stand massive force and temperatures up to 2,000℉. When submerged, they're also able to emit signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1,2009, are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered.
【小题1】What does the author say about the black box?

Many people to newspaper and magazines to express their opinions. Letters to the editor must carry the writer full name, address and telephone number, although the information is not necessary for publication. This requirement to provide personal particulars is a clear indication that writers are held responsible for what they say. When a writer wants his voice heard. He needs to claim ownership of his voice. Responsibility is the name of the game.

“People today prefer living together to putting their signatures on a marriage certificate because they refuse to accept responsibility for the relationship,” said social worker Ken Yip, “and this is what is causing a lot of family problems.” When we sign a paper, for example, a business contract or a bank document, the signature is symbol of consent, an agreement to take the matter seriously. Most governments and many organizations will not process writer’s complaints if they do not bear the writer’s signature. The absence of a signature, they explain, tells us that the writer cannot be too serious and therefore does not deserve a reply.

There are people who wish to remain anonymous（匿名的）for various reasons. Multi-billionaire Mr. King donates generously to charity several times a year. He gives simply because he wants to help but not for the publicity his donations may bring, and he does not want his good deeds to make news. In other cases, people insist on anonymity because they are afraid of the consequences of revealing their identity. Crime witnesses may be willing to assist the police, but most are unwilling to give their names when reporting a crime.

Name or no name? The answer is very personal and lies in how much we want to get involved. We all have a name, it is a matter if responsibility to it when we make a statement, a claim or an accusation. We all want to honour our own name, and it is only by stamping our expression of an opinion with our own name that we honour what we say.

68. What does the writer mean by saying “Responsibility is the name of the game”?

A. Writers need to provide their personal information in the game.

B. Publication must bear the writer’s full name, address and phone number.

C. Writers should be responsible for their names.

D. Names are required to indicate writers’ responsibility for what they say.

69. The second paragraph suggests that a paper without a signature may       .

A. help to end a relationship

B. not get a reply

C. be accepted all the same

D. become a family problem

70. Some people don’t want their names known because they are         .

A. hesitant to make a donation         B. unwilling to draw public attention

C. afraid of an accusation            D. ready for involvement

71. The passage is mainly about           .

A. honour and writers                  B. identity and signature

C. signature and responsibility           D. anonymity and signature

Beyond the Factory: Child Labor in the Cities
At the beginning of the nineteenth century, factory owners faced few restrictions on the way they employed their children workers, who were between the age of 7 and 12. Gradually laws came into being.
The first child-labor laws were passed at the state level in America and usually focused on both required education and a minimum age for employment. And added rules limited the length of the workday for children. Pennsylvania, for example, limited the workday to 10 hours for children under 12. However, government officials cared little whether businesses followed the law. In fact one group of children was left entirely unprotected by labor laws -- the children of immigrant families.
By the beginning of the twentieth century, piecework appeared, for which people were paid by the piece. Significant numbers of women sewed baby dresses or men's neckties and made the artificial flowers used to decorate hats. Piecework turned homes into factories that were free from the law, and countless children worked long hours alongside their mothers and old sisters.
Manufactures exploited the system shamelessly and paid the lowest wages they could. Embroidering (刺绣) a silk dress, which was a 10-day job, might generate a five-dollar payment. In the case of "willowing", workers needed to add more strands to ostrich feathers used on hats to make them longer and more graceful. The first willowers were paid 15 cents per inch, but a few months later, the pay was reduced to 13 cents. Within three years, willowers were earning only three cents per inch.
In order to survive under these circumstances, pieceworkers had even their youngest children help them. In one Italian neighborhood, a three-year-old girl helped her mother sew clothes. In another case, a child of eight who had lived in New York for three years had never been to school at all and could speak almost no English. Slowly child labor laws brought these abuses to an end.
31. The first child-labor laws required ______.
A. workplace safety and conditions
B. minimum payment and age
C. education and working time
D. minimum payment and schooling
32. Manufactures who hired women to do piecework ______.
A. were kind and concerned employers
B. were sometimes called "willowers"
C. usually paid the lowest salary
D. forced children to turn home into factories
33. "Willowing" was a kind of ______.
A. handwork activity           B. workplace
C. payment requirement              D. workers
34. By raising the example of the three-year-old girl's experience in the last paragraph, the author intended to ______.
A. show how poor the situations were for children workers
B. blame those adult pieceworkers for allowing children to work
C. attract attention to protect young children
D. emphasize the importance of educating young children
35. Which of the following sentences best summarizes the passage?
A. The first child-labor laws were limited due to working at the state level.
B. Early child-labor laws offered no protection to children who worked at home.
C. Some immigrant children did not learn English because of their piecework.
D. Child-labor laws should have come into being before children became workers.

Water is now           in Yunnan of China.

Sports can help you keep fit and get in touch with nature. However, whether you
you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.
Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sort of chemicals and huge amounts of energy are used to keep its courses in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.
There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse.. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less  anxious, sleep well and have better control.
Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centres. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.
68. Which of the following is the author mostly probably in favour of(支持)?
A. Cycling around a lake        B. Motor racing in the desert
C. Playing basketball in a gym.   D. Swimming in a sports center.
69. What do we know about golf from the passage?
A. It is popular in Portugal and Spain
B. It causes water shortages around the world.
C.It pollutes the earth with chemicals and waste
D. It needs water and electricity to keep its courses green.
70. The author uses power walking as an example mainly because____.
A. it is an outdoor sport        B. it improves our health
C. it uses fewer resources      D. it is recommended by experts.
71. The author writes the passage to _________.
A. show us the function of major sports.
B. encourage us to go in for green sports.
C. discuss the major influence of popular sports.
D. introduce different types of environment-friendly sports.