Human cloning technology could be used to reserve heart attacks. Scientists believe that they may be able to treat heart attack by cloning their healthy heart cells and injecting them into the areas of the heart that have been damaged, and other problems may be solved if human cloning and its technology are not forbidden.
With cloning, infertile couples could have children. Current treatments for infertility, in terms of percentages, are not very successful. Couples go through physical and emotionally painful procedures for a small chance of having children. Many couples run out of time and money without successfully having children. Human cloning could make it possible for many more infertile couples to have children than ever before.
We should be able to clone the bone marrow(骨髓) for children and adults suffering from leukemia(白血病). This is expected to be one of the first benefits to come from cloning technology. We may learn how to switch cells on and off through cloning and thus be able to cure cancer.
Cloning technology can be used to test for and perhaps cure gene-related diseases. The above is just a few examples of what human cloning technology can do for mankind. This new technology promises unprecedented (前所未有的)advancement in medicine if people will release their fears and let the benefit begin.What does the underlined word “infertile” (paragraph 2) most probably mean?
A.with physical and emotional problems |
B.short of time and money |
C.unable to give birth to children |
D.separated from each other for a long time |
According to the text, one of the first expected benefits from cloning technology is in ______.
A.the treatment of mental diseases |
B.the reserve of heart diseases |
C.the cure of gene-related diseases |
D.the bearing of babies |
According to the writer, the main problem with the development of human cloning technology is that__________.
A.it has brought about benefits so far |
B.it may be out of human control |
C.people still know little about it |
D.people are afraid of such technology |
Besides providing a perfect environment for sea plants and animals to live in, seawater has other values, one of which is that it constantly moves, and its movements produce energy.
The most obvious movements are the waves and the tides. Winds cause the waves, and the gravitational pull of the moon and the sun causes the tides. In places like the Bay of Fundy in Canada, the difference between the high and low tide level can be as much as 40 feet.
France and Britain are now trying to use energy in the tides to produce electricity. Waves can produce electricity and some experiments are taking place to learn more about this. One of the most encouraging areas of research uses the difference between the temperature of seawater at the surface and deep down to produce electricity.Waves and tides are caused by ________ .
A.the same forces | B.different forces | C.their own movements | D.plants and animals |
It can be inferred from the passage that __________ .
A.waves as well as the energy in the tide can produce electricity |
B.the highest tide is 40 feet higher than the lowest one at the sea |
C.many countries in the world have made the most of energy produced by seawater |
D.it is being tried in some developed countries to use energy in the tides to produce electricity |
The best title for the passage is ______.
A.Tides and Waves | B.How to Produce Electricity | C.Seawater | D.Another Cheap Energy |
Ted doesn’t like cars. He wants people to stop driving because cars make the air dirty. Ted had an idea. He said,“I’m going to cycle around North America. I want to show everyone that cycling is a fun way to get around. If more people ride bikes, the air will be cleaner.”
He left his hometown with $160 in his pocket. When he got to San Diego, he met another cyclist. The cyclist invited Ted to speak at a big meeting about the environment. He said,“We’ll pay your airfare to Texas and we’ll pay you to talk about your cycling trip.”Two hours later, Ted was on a plane to the environmental conference and to a big surprise!
While he was at the conference, he met Deanna. It was love at first sight! They talked for six hours straight.
The next day, Ted called Deanna and asked her to finish the trip with him. Deanna said yes, sold everything in her apartment, gave her notice at work, and was on the road with Ted 20 days later!
“It was difficult at first,”said Deanna. “Ted got up every morning at 6:00 a.m., but I wanted to sleep until noon.”After a few days, they started having fun. As they cycled from Florida to Montreal and then back to Vancouver, every day was an adventure. People paid for their food in restaurants and gave them extra money. Some people gave them $50 or $100. They slept in people’s backyards and drank beer with motorcycle gangs.
On their way back to Vancouver, they stopped in Edmonton to visit Ted’s relatives. During the stopover, they got married. People tied a “Just Married”sign and tin cans to the backs of their bikes. They now want to write a book about their trip. “We want people to know that you can be an environmentalist and still have fun, ”Ted said. Ted got paid for ______.
A.giving a talk about his cycling trip | B.cycling throughout North America |
C.traveling around North America by air | D.attending conferences on cycling |
The “big surprise” he had at the conference was that _______ .
A.he met another cyclist who wanted to join him | B.he fell in love with a girl there |
C.he gave a long talk lasting 6 hours | D.he had a lot of fun talking about his cycling trip |
The underlined part “gave her notice at work” probably means __________ .
A.Deanna was fired by her boss for not going to work |
B.Deanna asked for a long leave from work to join Ted in his trip |
C.Deanna told people beforehand that she would leave her job |
D.Deanna handed in the notice that she were asked to finish before |
During the trip, Ted and Deanne ___________.
A.found it hard to get up early | B.were attacked by motorcycle gangs |
C.never pay for their meals in restaurants | D.got married |
Few people would ever think of beginning a career at the age of 76, but one American most famous artist did just that. Anna Mary Robertson, better known as “Grandma Moses”, turned to painting because she could no longer take an active part in the funning of her farm. As she searched for something to do, she discovered painting--- an activity she had loved as a child.
Grandma Moses painted in primitive style, and her works are simple and basic — almost childlike in their composition. She first painted only for her own pleasure, and then began to sell her works for small sums of money.
In 1939, an art collector named Louis Caldor chanced to see several of Granma Moses’ works hanging in a store. He liked them, bought them at once, and set out to look for more. Caldor held a show to introduce the works of Grandma Moses to the art world.
Grandma Moses passed away on December 13,1961, at the age of 101, who had enjoyed a second career that lasted a quarter of a century.Before becoming an artist, Grandma Moses _______ .
A.wrote several good books | B.managed a farm | C.was a housewife | D.worked as a nurse |
Grandma Moses’ art career lasted ______ .
A.101 years | B.76 years | C.25 years | D.22 years |
Even if no one had bought her paintings, Grandma Moses probably would have ________.
A.continued to paint anyway | B.gone back to farming |
C.given up painting | D.spent the rest of her life in peace |
The story is mainly about_______ .
A.pictures in primitive style | B.a successful art collector |
C.a great American artist | D.the secret of living longer |
Rescue workers at the San Jose gold and copper mine in northern Chile had reason to sing this week.A small hole drilled into the earth became a passage(通道) to freedom for thirty-three trapped miners.They spent sixty-nine days underground."Never have people been trapped for so long so deeply," says a doctor at NASA, the American space agency, which helped in the rescue.
But the chief medical officer for the miners said most are in good enough health to leave the hospital within a day or so.The first three were released from the hospital Thursday night.
For much of the day the miners relaxed with Chilean President Sebastian Pinera.The thirty-two Chileans and one Bolivian still wore special sunglasses to protect their eyes.
A partial mine collapse(坍塌) on 5th of August trapped them more than half a kilometer underground.They had to stretch a two-day food supply.For two weeks no one knew if they were alive or dead.
Later, they received supplies(供给) and a video link lowered through drill holes.That link was how Ariel Ticona watched his wife give birth to their daughter.
The miners have apparently agreed to share the money they earn from selling their story.
They have already received gifts of money and travel offers.Edison Pena has been invited to the New York City Marathon and to Graceland, the home of Elvis Presley in Memphis, Tennessee.Mr.Pena described how he ran in the mine tunnels to ease the stress.And he led the miners in singing Elvis songs.
The first miner rescued on Wednesday was Florencio Avalos.The second was Mario Sepulveda, who talked about how the experience tested his faith.He said: "I was with God and I was with the devil, they fought me, but God won.He took me by my best hand, the hand of God."
The last miner up was Luis Urzua.He was the shift leader when his crew became trapped.
Rescuers used a metal cage to pull the miners to safety in less than twenty-four hours -- faster than expected.The rescue capsule was a half-meter wide and known as the Phoenix.How many miners had been rescued according to the report?
A.Three | B.Sixty-nine | C.Thirty-three | D.Thirty-two |
According to the passage, when the miners were trapped, some of them did the followings except ________.
A.sharing money | B.Running to ease stress |
C.Watching a video showing his wife giving birth | D.Singing songs |
Edison Pena was invited to Graceland probably because ________________.
A.he ran in the mine tunnel. | B.he prayed to God. |
C.he led the miners in singing Elvis songs. | D.he was the shift leader. |
From the passage, we can infer the followings EXCEPT that _______________.
A.Rescue workers were happy about their rescue work. |
B.People felt surprised to find the miners safe and sound. |
C.People might have been quite worried about the miners’ safety. |
D.The trapped miners drilled a small hole themselves to escape. |
What would be the best title for the report?
A.A mining accident | B.Miners saved, safe and sound |
C.A difficult rescue | D.Miners trapped deep underground |
Garden building is considered an important part of Chinese culture. Some people say that if you have never walked through a Chinese garden, you cannot say that you have really visited China.
Traditional Chinese gardens are located(位于)in North China in such places as Beihai Park, the Summer Palace, the Forbidden City. In larger imperial gardens, the main buildings are connected by an imaginary(虚构的) line in the middle of the garden on the north-south axis(轴). Other features (特征)of imperial gardens are colored-paintings, man-made hills and lakes.
Most private gardens are found in the south, especially in cities south of the Yangtze River. Private gardens were mostly built at one side or at the back of the houses. Around the beautiful scene are small open areas with beautiful shaped-doors through which visitors can enjoy the sights. They are open on all sides and are often near the water so that the whole scene can be enjoyed. Suzhou, known as the home of gardens, displays the most and the best Chinese traditional private gardens. Different parts of it are examples of the garden style of the Song, Yuan, Ming and Qing Dynasties.[
The landscape garden contains a number of pleasant natural scenes and some fairy tales. The ancient Chinese used to call the garden landscape “Jing” , which means “scene” in English. Good examples include the ten West Lake Scenes in Hangzhou, the twenty-four slim West Lake in Yangzhou and the eight Daming Lake Scenes in Jinan. The passage tells mainly about ________.
A.an important part of Chinese culture |
B.the characteristics (特征) of different style of Chinese garden building |
C.where foreigners can find Chinese gardens |
D.how to appreciate Chinese gardens |
Which of the following is NOT a feature of the imperial garden?
A.There is a north-south axis in the center of garden |
B.There are man-made hills and lakes in the gardens. |
C.They were built because of some fairy tales. |
D.They have colored-paintings. |
In the third paragraph, the underlined word “They” refer to ______.
A.private gardens | B.beautiful scenes |
C.the houses | D.rivers and lakes |
According to the passage, which of the following is TRUE?
A.Chinese people often invite foreigners to visit a Chinese garden. |
B.The landscape garden reflects different styles of the Song, Yuan, Ming and Qing Dynasties. |
C.All three kinds of gardens make up the important part of Chinese culture which is appreciated by the people all over the world. |
D.People enjoy the private gardens more than other two styles. |
The garden landscape “Jing” which the ancient Chinese used to call actually means in English _________.
A. well | B.tight | C.garden | D.scene |