Today, when a man steps on to the moon, or something new and important happens, the world learns about it immediately. What did the newspapers say about that first flight in 1903? Strangely enough, they said hardly anything about it at all. There were only a few reports about it in the papers. These reports said very little. Some of the things they said were not even correct.

　　In 1904 the Wrights built a second machine. They called it "Flyer No. Two". They invited some reporters to a field near Dayton to watch them fly. Unfortunately there was some mechanical （机械的）trouble with the plane and it did not fly at all that day. The newspapermen went away. They were disappointed and did not come back. The Wrights went on with their work. In 1905, they built an even better machine, "Flyer No. Three". They were able to stay upon the air for half an hour and more in the machine and they were able to turn and climb in the air. Farmers and travelers on the road around Dayton often saw them flying. But when these people told newspapermen about it, they refused to believe them.

　　The Wrights offered "Flyer No. Three" to the United States govern ment. The government was not interested. They seemed to think the Wrights wanted money in order to build a plane. They did not understand the Wrights had already done this, and flown it as well. Experts were still saying that mechanical flight was impossible. At the end of 1905, the two brothers took their plane to pieces. The parts were put into a huge wooden box. It seemed nobody was interested.

　　1．The reports about the first flight________

　　　　A. were not carried in any newspaper

　　　　B. said nothing

　　　　C. were quite different from the fact

　　　　D. were not quite correct

　　2．Newspapermen didn't believe what farmers and travelers said because_______

　　　　A. they didn't see "Flyer No. Three" flying

　　　　B. they saw the Wrights failed to fly "Flyer No. Two"

　　　　C. they had never seen a machine that can fly

　　　　D. all the above

　　3．The U. S. government could not understand that __________

　　　　A. the Wrights had already built a machine that could fly

　　　　B. experts still thought flight was impossible

　　　　C. the Wrights wanted more money to build an airplane

　　　　D. "Flyer No. Three" was then in a woken case

　　4．The Wrights took their plane to pieces because ________.

　　　　A. they planned to leave for Europe

　　　　B. nobody was interested

　　　　C. the government didn't give them any money

　　　　D. the newspapermen didn't report their flights

B
While still in its early stages, welfare reform has already been judged a great success in many states — at least in getting people off welfare. It’s estimated that more than 2 million people have left the rolls（名册） since 1994.
　　In the past four years, welfare rolls in Athens Country have been cut in half. But 70 percent of the people who left in the past two years took jobs that paid less than $6 an hour. The result: The Athens Country poverty rate still remains at more than 30 percent — twice the national average.
　　For advocates（代言人）for the poor, that’s an indication much more needs to be done.
　　“More people are getting jobs, but it’s not making their lives any better,” says Kathy Lairn, a  policy analyst at the Center on Budget and Policy Priorities in Washington.
　　A center analysis of US Census data nationwide found that between 1995 and 1996, a greater percentage of single, female-headed households were earning money on their own, but that average income for these households actually went down.
　　But for many, the fact that poor people are able to support themselves almost as well without government aid as they did with it is in itself a huge victory.
　　“Welfare was a poison. It was a toxin（毒素）that was poisoning the family,” says
Robert Rector, a welfare-reform policy analyst. “The reform is changing the moral climate in low-income communities. It’s beginning to rebuild the work ethic（道德观）, which is much more important.”
　　Mr. Rector and others argued that once “the habit of dependency is cracked,” then the country can make other policy changes aimed at improving living standards.
45. From the passage, it can be seen that the author _______.
　　A. believes the reform has reduced the government’s burden
　　B. insists that welfare reform is doing little good for the poor
　　C. is overenthusiastic about the success of welfare reform
　　D. considers welfare reform to be basically successful
46. Why aren’t people enjoying better lives when they have jobs?
　　A. Because many families are divorced.
　　B. Because government aid is now rare.
　　C. Because their wages are low.
　　D. Because the cost of living is rising.
47. From the passage we know that welfare reform aims at _______.
　　A. saving welfare funds
　　B. rebuilding the work ethic
　　C. providing more jobs
　　D. cutting government expenses
48. According to the passage before the welfare reform was carried out, _______.
　　A. the poverty rate was lower
　　B. average living standards were higher
　　C. the average worker was paid higher wages
　　D. the poor used to rely on government aid

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 withstand 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 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 device’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 device 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 withstand（抵挡）massive force and temperatures up to 2,000℉. When submerged（潜入水中）, 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.

1.What does the author say about the black box?

2.. What information could be found from the black box on the Yemeni airliner?

3. Why was the black box redesigned in 1965?

4. What do we know about the black boxes from Air France Flight 447?