The Silk Road is a historically important international trade route between China and the Mediterranean (地中海). It began during the Western Han Dynasty and has been a bridge between the East and the West for over 2000 years.

The ancient road started from Chang’an (now Xi’an) and ended in Eastern Europe near today’s Turkey and the Mediterranean Sea, it was about 6500 kilometers long and went across one fourth of the planet.

The Silk Road got its name in the 19th century, because Chinese silk used to be carried along this road. Silk, jade, ceramics(陶瓷) and iron went west to Rome. And from the west came glass, gems and food like carrots.

The Silk road was very important to both China and the rest of the world. It was more than an ancient international trade route. Besides trade, knowledge about arts, science and literature, as well as crafts and technologies was shared across the Silk Road. In this way, languages and cultures developed and influenced each other.

Today, China is trying to build the “21st Century Marine(海洋的) Silk Road.” With the help of APEC held in Beijing in November, 2014, the dream of “ One Belt One Road(一带一路)” is coming true.

1.The underlined word “route” in paragraph 1 probably means _________ .

A. 方式 B. 路线 C. 成就 D. 关系

2.When did the Silk Road begin?

A. In the 19th century. B. In the 18th century

C. During the Western Han Dynasty. D. During the Eastern Han Dynasty.

3.How long was the ancient Silk Road?

A. It was about 6500 meters long.

B. It was about 5000 kilometers long.

C. It was across one third of the planet.

D. It went across one fourth of the earth.

4.Why was it named the Silk Road?

A. Because Chinese silk was transported to the West along this road.

B. Because Chinese silk was produced along this road.

C. Because things were traded from market to market along this road.

D. Because the ancient traders bought and sold things along this road.

5.It can be inferred(推断) from this passage that ________.

A. the Silk Road was only an ancient international trade route.

B. many new silk roads have been built by the Chinese government so far.

C. the Silk Road was a very important line of communication connecting the East and the West.

D. the Silk Road prevented the development of languages and cultures between the East and the West.

Dogs are known for their sense of smell. They can find missing people and things. Now a study shows that the animal can even find bladder cancer (膀胱癌).

Cancer cells can produce chemicals with unusual smells. Scientists think dogs have the ability to smell these smells, even in very small amounts, in urine (尿).

For example, a dog showed great interest in the growth of its owner’s legs. The man was later found to have skin cancer. Carolyn Willis and some scientists trained different kinds of dogs for the experiment. The study used urine collected from bladder cancer patients (病人), from people with other diseases and from healthy people. Each dog was tested 8 times. In each test there were 7 examples for the dog to smell. The dog should show the one from a bladder cancer patient by lying down next to it.

Their results later appeared on the British Medical Journal. In all, 36 bladder cancer patients and 108 other people attended. During the training, all the dogs even found cancer in a person who had been tested healthy before the study. Carolyn Willis said dogs could help scientists find the chemicals produced by bladder cancer. The information could then be used to develop machines to test for the chemicals. The team also plans to use dogs to help find other kinds of cancer.

1.How many kinds of urine were collected in the experiment?

A. One. B. Two. C. Three. D. Four.

2.Why did the writer give the detailed experiment in the third paragraph?

A. To introduce the first paragraph.

B. To support the second paragraph.

C. To teach us to do some experiments.

D. To let us know the reason of the experiment.

3.What would the dog do when it found the right urine?

A. It would lie down next to its owner’s feet.

B. It would take the urine to the scientists.

C. It would lie down next to the urine.

D. It would make some noises.

4.What’s the main idea of the passage?

A. Dogs have a good sense of smell.

B. Dogs can help people become healthy.

C. Dogs can be used in experiments.

D. Dogs can smell cancer.

5.Who may be most interested in reading the passage?

A. Dog owners. B. Doctors.

C. Pet lovers. D. Singers.

Long long ago, when the great library of Alexandria burned, the story goes that one book was saved. But it was not a ______ book. A poor man, who could______ a little, bought it for a few coins.

The book wasn’t very interesting, but between its________ there was something very interesting _____. It was about the ______ of the "Touchstone (试金石)"! The touchstone was a small pebble (鹅卵石) that could turn any common metal into pure gold. The writing explained that it was _______ among thousands and thousands of other pebbles that looked exactly like it. But the secret was this: The real stone would feel warm, ________ ordinary pebbles were cold.

So the man ________ his few belongs, bought some simple supplies, camped on the_______and began ____ pebbles. He knew that if he picked up common pebbles and threw them down again, he might pick up the same pebble hundreds of times. So, when he felt one that was cold, he threw it into the sea. He spent a whole day doing this, but ________to find the touchstone. Yet he went on and on this way. Pick up a pebble. Cold-throw; it into the sea. Pick up another. Cold-throw it into the sea.

The days stretched into weeks and the weeks into months and the months into years. One day, however, about mid-afternoon, he picked up a pebble and it was warm. He threw it into the sea before he ________ what he had done. He had_______ a strong habit of throwing each pebble into the sea that when the one he wanted ________, he still threw it away.

So it is with chance. _______we don't pay enough attention, it is easy to miss a chance when it is in hand and it's just as easy to throw it away.

1.A. costly B. cheap C. modern D. important

2.A. record B. read C. speak D. hear

3.A. pages B. words C. backs D. covers

4.A. indeed B. perhaps C. however D. somehow

5.A. function B. secret C. role D. purpose

6.A. remaining B. laying C. fixing D. lying

7.A. and B. while C. or D. yet

8.A. sold B. rented C. lent D. threw

9.A. market B. field C. seashore D. hometown

10.A. dealing B. served C. testing D. collecting

11.A. managed B. stopped C. forgot D. failed

12.A. realized B. complained C. guessed D. discovered

13.A. built B. set C. created D. formed

14.A. passed away B. came along C. sent out D. took place

15.A. If B. Whether C. Although D. Unless

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