题目列表(包括答案和解析)
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多途选项。
Laser(激光)is short for Light Amplification by Stimulated Emission of Radiation.Laser light is different from daylight or electric lights.Industry put lasers to work almost immediately after they were invented in nineteen sixty. 1 .
The first medical operation using a laser took place the year following its invention.Doctors Charles Campbell and Charles Koester used a laser to remove a tumor from a patient's eye at Columbia-Presbyterian Hospital in New York City. 2 .
Lasers have made measurement an exact science.Astronomers have used lasers to measure the moon's distance from Earth. 3 .For example, drawing a perfectly level straight line on a construction site is easy using a laser.
4 .And the jewelry industry uses lasers to write on the surface of the world's hardest substance, diamonds.
Lasers are found in many products used almost everywhere.Over one hundred years ago, writers imagined that beams of light could be powerful weapons.Today, lasers guide missiles and bombs.American defense companies are working on giant laser guns recognizable to science fiction fans everywhere. 5 .
Scientific American magazine says huge lasers turn only about twenty to thirty percent of the energy they use into a laser beam.The rest is lost as heat.
That has not stopped scientists from working to perfect powerful lasers that, one day, may be able to shoot missiles out of the sky.
A.But weapons were not the first to use it on the list.
B.All lasers have several things in common.
C.Mappers and builders use laser technology every day.
D.But there are technological difficulties.
E.Lasers have also changed the way we communicate.
F.Manufacturers have used lasers for years to cut and join metal parts.
G.Since then, doctors have used lasers to cut and remove tissue safely with little risk of infections.
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Oh, the things that I should see if I had the power of sight for just three days!
The first day would be a busy one.I should call to me all my dear friends and look long into their faces, imprinting(铭记)upon my mind the outward evidences of the beauty that is within them, I should let my eyes rest, too, on the face of a baby, so that I could catch a vision of the eager, innocent beauty which precedes the individual's consciousness of the conflicts which life develops.
And I should like to look into the loyal, trusting eyes of my dogs-the serious, clever little Scottie, Darkie, and the strong, understanding Great Dane, Helga, whose warm, tender, and playful friendships are so comforting to me.
On that busy first day I should also view the small simple things of my home.I want to see the warm colors in the carpets under my feet, the pictures on the walls, the lovely small furniture that transforms a house into home.My eyes would rest respectfully on the books in dot-raised type which I have read, but they would be more eagerly interested in the printed books which seeing people can read, for during the long night of my life the books I have read and those which have been read to me have built themselves into a great shining lighthouse, showing me the deepest channels of human life and the human spirit.
In the afternoon of that first seeing day, I should take a long walk in the woods and intoxicate(使陶醉)my eyes on the beauties of the world of Nature trying desperately to absorb in a few hours the vast brilliance which is presenting itself to those who can see.On the way home from my woodland trip, my path would lie close to a farm so that I might see the patient horses ploughing in the field and the peaceful content of men living close to the soil.And I should pray for the glory of a colorful sunset.
When dusk had fallen, I should experience the double delight of being able to see by artificial light which the genius of man has created to extend the power of his sight when Nature brings darkness.
In the night of that first day of sight, I should not be able to sleep, so full would be my mind of the memories of the day!
(by Helen Keller)
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Tourism probably started in Roman times. Rich Romans visited friends and family who were working in another part of the Roman empire. But when the empire broke down, this kind of tourism stopped.
In the early 17th century, the idea of the“Grand Tour”was born. Rich young English people sailed across the English Channel. They visited the most beautiful and important European cities of the time, including Paris in France, and Rome and Venice in Italy. Their tours lasted for two to four years, and the tourists stayed a few weeks or months in each city. The“Grand Tour”was an important part of young people’s education—but only for the rich.
In the 18th century, tourism began to change. For example, people in the UK started to visit some towns, such as Bath to“take the waters”.They believed that the water there was good for their health. So large and expensive hotels were built in these towns.
In the 19th century, travel became much more popular and faster. When the first railways were built in the 1820s,it was easier for people to travel between towns, so they started to go for holidays by the sea. And some started to have holidays in the countryside as cities became larger, noisier and dirtier.
Traveling by sea also became faster and safer when the first steamships were built. People began to travel more to far away countries.
The 20th century saw cars become more and more popular among ordinary people. Planes were made larger, so ticket prices dropped and more people used them.
Thus tourism grew. In 1949, Russian journalist Vladimir Raitz started a company called Horizon Holidays. The company organizes everything—plane tickets, hotel rooms, even food—and tourists pay for it all before they leave home. The package tour and modern tourist industry was born.
The first travel agency in China was set up as early as 1949.But tourism did not take off until 1978.In 2002,the industry was worth 500 billion Yuan and became an important part of China’s social development.
【小题1】In the early times, the travelers ________.
A.all came from Roman | B.were very young and strong |
C.had lots of money | D.traveled by boat |
A.Education | B.Money | C.Transportation | D.People’s ideas |
A.in 1949 | B.in Roman times |
C.in the early 17th century | D.in the 19th century |
A.a plane rising into the air | B.develop very fast |
C.remove hats and clothes | D.bring down the prices |
课文填空
As time went by, he began making films.He grew more and more popular as his charming character, the little tramp, became known 1 the world.The tramp, a poor, homeless man with a 2 , wore large trousers, 3 shoes and a small round black hat.He walked around stiffly carrying a walking stick.This character was a social 4 but was loved for his 5 and determination to overcome all difficulties.
The first person to arrive was Tony Garcia from Colombia, closely followed by Julia Smith from Britain.After I met them and then 6 them to each other, I was very surprised.Tony 7 Julia, touched her shoulder and kissed her on the cheek!She stepped back 8 surprised and put up her hands, as if in 9 .I guessed that there was probably a major 10 .
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