题目内容

About 1000 people ________ in the war.

A.
died
B.
dying
C.
dead
D.
was died

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Microwaves may be great at warming up food, but what about warming people?

Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furniture. And despite popular ideas about microwaves, this technique would be safe, according to Charles R. Burlier of the Microwave Research Center in Marlborough, New Hampshire. Low-power microwaves only penetrate (贯穿) the skin (low-power microwave penetration in a ham is about 0.2 inches, for example) and with no negative effects.

To test this idea, Buffler subjected himself to microwaves in a special room using a standard 500-watt, 2459 MHz magnetron (磁控管). He found that a person will start to feel warmth at about 20 kilowatts per square centimeter (mw. / sq. cm. ) ; a satisfactory feeling of warmth occurs between 35 and 50 mw. / sq. cm. By comparison, a person standing in noonday summer sun feels the amount of 85 mw. / sq. cm. And a frozen meat pie in your microwave oven receives about 1000 mw. / sq. cm.

In houses of the future, each room could be provided with its own magnetron, says Buffler. When you stepped into the living room, for example, a motion detector (运动感应器)would turn on the magnetron, filling the room with low-power microwaves. In the same way that a microwave oven heats up a hamburger, but not the plate it’s on, you would feel warmth from the microwaves without changing the temperature of your coffee table. (You could, however, make your favorite easy chair even more comfortable by treating it with a radiation-absorbing chemical.)

While it might be some time before homeowners are comfortable enough with the idea to set up whole-body microwave heaters in houses, Buffler says microwaves may attract livestock(家畜) farmers. Lambs that are born outdoors in winter, for example, are frequently lost to cold. Microwaves could warm the lambs safely and quickly.

Which of the following can tell the main idea of the passage?

A. A new heating system.

B. A new microwave oven.

C. A popular technique.

D. The magnetron.

According to Paragraph 2, which of the following does not describe the characteristics of a microwave heater?

A. It directly heats people in a room.

B. It heats walls and furniture in a room.

C. It is safe.

D. It saves energy．

The test conducted by Buffler shows that when a person feels comfortable warmth, he receives about ________________.

A. 20 mw. / sq. cm. B. 40 mw. / sq. cm.

C. 60 mw. / sq. cm. D. 85 mw. / sq. cm.

According to Paragraph 4, which of the following fills the room with low-power microwaves?

A. The magnetron.

B. The motion detector.

C. The microwave oven.

D. The radiation-absorbing chemical.

Which of the following statements about microwave heaters would Buffler most probably agree with?

A. Microwave heaters will soon be widely used by homeowners.

B. Microwave heaters sometimes make people feel uncomfortable.

C. Perhaps microwave heaters will be first used by livestock farmers, who wish to protect their lambs in winter.

D. Microwave heaters cannot be accepted by the public because they are somewhat unsafe.

He makes about $1000 every week，much ______ is spent on books.

A．of which B．in that C．among whichD．of it

New archaeological discovers suggest that trade between Europe and Asia along the Silk Road probably began in some form many centuries earlier than once thought. The findings, coupled with a widening range of scientific and historical research, could add a fascinating new page to the epic of the Silk Road.

The latest and most surprising discovery is pieces of silk found in the hair of an Egyptian mummy from about 1000 BC, long before regular traffic on the Silk Road and at least one thousand years before silk was previously thought to be used in Egypt. Other research may extend human activity along this route back even further, perhaps a million years to the migration of human ancestors into eastern Asia.

The official origin of East-West commerce along the road is usually placed in the late 2nd century BC when an agent of the Chinese Emperor Wu-di returned from a dangerous secret mission(使命) across the western desert into the remote high country of Central Asia. The agent, Zhang Qian, travelled as far as Afghanistan and brought back knowledge of even more distant lands such as Persia, Syria and a place known as Lijien, perhaps Rome. Historians have called this one of the most important journeys in ancient times. His journey opened the way for what have been thought to be the first indirect contacts between the ancient world’s two superpowers, China and Rome. Chinese silk, first traded to central Asian tribes for war horses and to the Parthians of old Persia in exchange for acrobats and ostrich eggs, was soon finding its way through a network of merchants to the luxury markets of Rome.

But the new discoveries show that Chinese silk was apparently present in the West long before the Han emperor started organized trade over the Silk Road. The research could change thinking about the early history of world trade and provide insights into the mystery of just how and when Europe and the Mediterranean lands first became aware of the glorious culture at the other end of Eurasia.

59. The word “coupled” in the first paragraph could best be replaced by_______ .

A. produced B. continued

C. doubled D. combined

60. The silk thread found in the hair of an Egyptian mummy suggests that_______.

A. Egyptians had probably travelled to China to buy silk

B. trade along the Silk Road began earlier than once thought

C. historical research often achieves fascinating results

D. new light can now be thrown on ancient trading practices

61．Historians have always considered Zhang Qian’s mission important because they believe_______.

A. he brought back knowledge of Rome to the emperor

B. he discovered the Silk Road

C. he helped establish East-West trade

D. he travelled as far as Afghanistan

62. When did the official origin of East-West commerce along the Silk Road get to Persia?

A. About 1000 BC.

B. In the late 2nd century BC.

C. A million years ago.

D. In the 2nd century.

New archaeological discoveries suggest that trade between Europe and Asia along the Silk Road probably began in some form many centuries earlier than once thought. The findings, coupled with a widening range of scientific and historical research could add a fascinating new page to the epic (史诗) of the Silk Road.
The most surprising discovery is pieces of silk found in the hair of an Egyptian mummy from about 1000 BC, long before regular traffic on the Silk Road and at least one thousand years before silk was previously thought to be used in Egypt. Other research may extend human activity along this route back even further, perhaps a million years to the migration of human ancestors into eastern Asia.
The official origin of East-West trade along the road is usually placed in the late 2^nd century BC when an agent of the Chinese Emperor Wu-di returned from a dangerous secret mission（使命）across the desert into the remote high country of Central Asia. The agent, Zhang Qian, travelled as far as Afghanistan and brought back knowledge of even more distant lands such as Persia, Syria and a place known as Lijien, perhaps Rome. Historians have called this one of the most important journeys in ancient times. His journey opened the way for what have been thought to be the first indirect contacts between the ancient world’s two superpowers, China and Rome. Chinese silk, first traded to central Asian tribes for war horses and to the Parthian for acrobats and ostrich eggs, was soon finding its way through a network of merchants to the luxury (奢侈品) markets in Rome.
But the new discoveries show that Chinese silk was apparently present in the West long before the Han emperor started organized trade over the Silk Road. The research could change thinking about the early history of world trade and provide insights into the mystery of just how and when Europe and the Mediterranean lands first became aware of the glorious culture at the other end of Eurasia.
【小题1】The word “coupled” in the first paragraph could best be replaced by .

【小题2】The silk thread found in the hair of an Egyptian mummy suggests that .

A．Egyptians had probably travelled to China to buy silk

B．new light can now be thrown on ancient trading pr

actices

C．historical research often achieves fascinating results

D．trade along the Silk Road began earlier than once thought

【小题3】Until recently historians mostly believed that trade along the Silk Road .

A．began a million years ago

B．primarily benefited the Egyptians

C．originated in the 2^nd century BC

D．extended human migration into eastern Asia

【小题4】Historians have always considered Zhang Qian’s mission important because they believe .

A．he discovered the Silk Road

B．he helped establish East-West trade

C．he travelled as far as Afghanistan

D．he brought back knowledge of Rome to the emperor

Snake dishes have become popular __31________ recent years. Snake meat in various flavors (风味) is often seen in restaurant ads. Eating snake seems to be now in vogue(盛行), and if you haven’t eaten snake yet, you __32_________(consider) “out of date”. But I wonder___33__________ all the trends are worth following.

Some people may defend themselves __34_______ saying that snake meat is nutritious. But these people don’t realize that many parasites(寄生虫)，__35_______ do harm to our health, are found inside snakes.

According __36_________ a survey, about 1000 tons of snakes are eaten every year in China and sometimes as ___37_________ as 10 tons of snakes are served on dinner tables in Shenzhen in a single day!

These figures warns us that if no action is taken, __38_______ number of snakes will drop and make an increase in mice and worms population, which will __39_______ in a decrease(减产) of crop output. Who will see such tragedy happen?

So let’s start not to eat snakes any more because “to protect the snake is to protect __40________.”

About 1000 people ________ in the war.

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