摘要:51.India became i of Britain in 1974.

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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 back 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 resist 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.

What does the author say about the black box?

A. It ensures the normal functioning of an airplane.

B. The idea for its design comes from a comic book.

C. Its ability to resist disasters is incredible.

D. It is an indispensable device on an airplane.

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

A. Data for analyzing the cause of the crash.

B. The total number of passengers on board.

C. The scene of the crash and extent of the damage.

D. Homing signals sent by the pilot before the crash.

Why was the black box redesigned in 1965?

A. New materials became available by that time.

B. Too much space was needed for its installation.

C. The early models often got damaged in the crash.

D. The early models didn't provide the needed data.

Why did the Federal Aviation Authority require the black boxes be painted orange or yellow?

A. To distinguish them from the colour of the plane.

B. To caution people to handle them with care.

C. To make them easily identifiable.

D. To conform to international standards.

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

A. There is still a good chance of their being recovered.

B. There is an urgent need for them to be reconstructed.

C. They have stopped sending homing signals.

D. They were destroyed somewhere near Brazil.

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In ancient China tea was probably used as a relish(开胃小菜) and as a medicine. Tea was first brewed(煮泡) as a medicine around 2,700 BC in the western mountains of China. Tea was likely seen as healthy in part because it was made with boiled water, which is safer to drink in an area of polluted water.
Tea drinking, and commercial cultivation(种植),spread during the Tang Dynasty, 618-907, especially after a Buddhist monk(佛教僧侣), wrote a book on the virtues of tea, Cha Ching. Tea gradually became one of the seven basic necessities of Chinese life (The others are fuel, rice, oil, salt, soy sauce, and vinegar.)
A Japanese Buddhist priest, Saicho, is believed to have introduced tea to Japan, when he returned from a visit to China in 805. In Japan tea drinking was considered medicinal, and became closely associated with Zen Buddhism(禅宗).
Tea drinking also spread to Korea and Southeast Asia, and was taken over the Silk Road to Central Asia, Russia, and the Middle East.
Dutch explorers became familiar with tea in the 1590s and were soon importing tea to Europe. In 1657 the British East India Company held the first public sale of tea in England, while that same year Thomas Garraway began offering tea at his London coffee house.
In 1662 tea received a big boost(推进) in England when the Portuguese Catherine of Braganza, married King Charles II and introduced tea drinking to the British court.
Gradually, the British fell in love with tea, and with the sugar that went in it. In 1665, less than 88 tons of sugar was imported to Great Britain. By 1700, it had increased to 10,000 tons of sugar. In 1768 the East India Company imported 10 million pounds of tea to Britain.
1. Tea has been used as a medicine in China for _________.
A. about 8,000 years      B. about 4,700 years     
C. about 2,200 years      D. about 2,700 years
2. Tea began to spread as a popular drink in China because of _______.
A. the Silk Road              B. the basic necessities of Chinese life
C. a famous book about tea   D. its association with Zen Buddhism
3. According to the text, we can infer that Britain________.
A. first introduced tea to Europe
B. was the first country to trade with China for tea
C. was the first country to have learned about tea from China
D. may be the biggest imported country of tea in Europe even today
4. What is the text mainly about?
A. The history of tea             B. How tea was introduced to other countries
C. China is the home of tea   D. The importance of tea

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阅读理解B
Alexander the Great was a mighty(强大的) king and conqueror(征服者). He was one of the greatest military geniuses(军事天才) the world has ever known. He was born in Pella, Macedonia. Alexander grew to be a handsome, brilliant(卓越的) man. Aristotle, the famous philosopher(哲学家), came from Greece to teach him---geography, politics, literature, medicine and science. Alexander’s father, King Philip II of Macedon, taught him to plan and win battles.
The young prince became King when he was 20. He then began the series of marches that continued until he ruled almost all of the then-known world. On his great war horse, Bucephalus, he first took over Greece. He went on to conquer southeastern Europe, Asia Minor, Egypt and India. On his way he crushed(征服) the Persian Empire, and was made King of Egypt and Asia. He and his troops traveled over 11,000 miles(17,700 km). He spread Greek customs and ideas wherever he went.
In India his men refused to go further. They were tired and frightened, and wanted to go home. Worn out, Alexander agreed to turn back. He died of fever in Babylon, at the early age of 33.
【小题1】Alexander and his troops traveled and fought probably ________ then.

A.by shipB.by simple truck
C.on their horsesD.on foot
【小题2】What’s the main idea of the second paragraph?
A.He spread Greek customs and ideas wherever he went.
B.He began great marches and ruled a lot of countries.
C.How he took over one country after another.
D.In which order he crushed these countries after another?
【小题3】 Which of the following statements is TRUE?
A.He died in his late thirties.
B.Bucephalus was probably a big ship.
C.He conquered all the countries then known in the world.
D.Alexander was very ready to listen to anybody including his officers and soldiers.
【小题4】What’s the best title of this passage?
A.How Alexander the Great Became King?
B.Great Tragedy
C.Good Education Makes a Great Man
D.Alexander the Great

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