Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.
“ I think we are knocking at the door of immortality (永生),” said Michael Zey, a Montclair State University business professor and author of two books on the future. “ I think by 2075 we will see it and that’s a conservative estimate.”
At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology(纳米技术) make it likely that humans will live in the future beyond what has been possible in the past. “ There is a great push so that people can live from 120 to 180 years,” he said. “ Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years.”
However, many scientists who specialize in aging are doubtful about it and say the human body is just not designed to last about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.
Scientists also differ on what kind of life the super aged might live. “ It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life?” said Leonard Poon, director of the University of Georgia Gerontology Center. “ At present people who could get to that point are not in good health at all.”By saying “ we are knocking at the door immortality”, Michael Zey means_____.
A.they believe that there is no limit of living |
B.they are sure to find the truth about long living |
C.they have got some ideas about living forever |
D.they are able to make people live past the present life span |
Donald Louria’s attitude toward long living is that_____.
A.people can live from 120 to 180 |
B.it is still doubtful how long humans can live |
C.the human body is designed to last about 120 years |
D.it is possible for humans to live longer in the future |
70. The underlined “ it” (Para. 4) refers to_____.
A.a great push |
B.the idea of living beyond the present life span |
C.the idea of living from 200 to 300 |
D.the conservative estimate |
What would be the best title for this text?
A.Living longer or not |
B.Science, technology and long living |
C.No limit for human life |
D.Healthy lifestyle and long living. |
October 31, 2009, California
Tsien Hsue-shen, PhD'39, one of the founders of the Jet Propulsion Laboratory, died on October 31, He was 98.
Tsien, born in the eastern Chinese city of Hangzhou, graduated from the National Qinghua University in 1934 and in August of 1935 he left China to study at the Massachusetts Institute Technology. In 1936 he went to the California Institute of Technology to commence graduate studies .Tsien obtained his doctor degree in 1939 and would remain at Caltech for 20 years, becoming the Goddard Professor and establishing a reputation as one of the leading rocket scientists in the United States.
In 1943, Tsien and two others in the Caltech rocketry group drafted the first document to use the name Jet Propulsion Laboratory. During the Second World War, he was amongst the other scientists participated the "Manhattan Project" .After World War II he served as a consultant to the United States Army Air Force. During this time, Conlonel Tsien worked on designing an intercontinental space plane. His work would inspire the X--20Dyna-Soar which would later be the inspiration for the Space Shuttle. In1945 Tsien Hsue--shen married Jiang Ying, the daughter of Jiang Baili--one of the Chinese nationalist leader Chiang Kai--shen's leading military strategists. But in 1950, the Chinese-born scientist was accused of harboring Communist sympathies and stripped of his security clearance.
In September 1955 he was permitted to leave for China, where Tsien resumed his research, founded the Institute of Mechanics, and went on to become the father of China's missile program, a trusted member of the government and Party's inner circle, and the nation's most honored scientist, Tsien retired in 1991 and has maintained a low public profile in Beijing, China. The PRC government launched its manned space program in 1992 and used Tsien's research as the basis for the Long March rocket which successfully launched the Shenzhou V mission in October of 2003.The elderly Tsien was able to watch China's first manned space mission on television from his hospital bed.
In his late years, since the 1980s, Tsien devoted himself to spirituality research, and advocated scientific investigation of traditional Chinese medicine, Qigong and "special human body functions".The underlined word "commence" in this passage probably means ____
A.make up | B.get | C.begin | D.promise |
Tsien Hsue--shen got married at the age of ______
A.45 | B.28 | C.24 | D.34 |
What is the right order of the events related to Tsien Hsue--shen ?
a. his later life b. return to China c. career in the U.S.A d. his early life and education
A.a-b-c-d | B.d-c-b-a | C.d-b-c-a | D.c-b-d-a |
Which of the following statements is NOT true?
A.Tsien Hsue--shen got a doctor's degree in 1939. |
B.Tsien Hsue--shen married Jiang Ying, the daughter of Chinese nationalist leader Chiang Kai-shen. |
C.Tsien Hsue-shen has made a contribution to the Space Shuttle. |
D.Tsien Hsue-shen was interested in traditional Chinese medicine, qigong and "special human body functions" in his later life. |
Chinese people take their food and eat it extremely seriously .Eating is a communal (公共的),social, human experience in China .Sharing a meal is a sign of friendship,and trust , Eating plays a central role in friendship ,business ,medicine ,family and love. In short, food is life.
When eating, the rice is separated into your own personal bowl, but the dishes are placed in communal bowls in the center of the table and everybody help themselves with chopsticks .It's considered polite, and sign of respect and friendship, to encourage other people to eat plenty of the good bits, even to pick up food with your chopsticks and drop it into their rice bowls for them.
Food is an important component of weddings, funerals and almost all Chinese festivals. New Year is the time for dumplings, the Dragon Boat Festival is the time for sticky rice Zongzi wrapped in leaves, and Mid -Autumn Day is the time for Moon Cakes. The dinner table is the best for forum(公共讨论场所) to close business deals ,and it's the number one thing to do with friends.
Chinese women express their admiration for the opposite sex by cooking delicious meals of many courses, and these days it's the other way round too.
In short, if you want to get to know Chinese people, understand Chinese culture and thinking and get into Chinese life, you have to eat and appreciate Chinese food. What is the best title of this passage?
A.Eating Food in China |
B.How Do Chinese People Eat Food |
C.The Importance of Chinese Food |
D.Different Foods for Different Chinese Food |
In the first paragraph, what does the author mean by saying "food is life"?
A.Without food, there will be no life |
B.food is as important as life |
C.we must take food seriously |
D.we must eat food every day |
What is the representative food for the Dragon Boat Festival in China?
A.Dumplings | B.Moon Cakes | C.Jiaozi | D.Zongzi |
When we look at the sky and see a bright light moving quickly across it or coming towards the earth, we talk about seeing a “shooting star” or a “falling star”. These moving lights are not, in fact, stars at all. They are small pieces of matter from outer space, which burn up as they enter the Earth’s atmosphere. The correct name of them is meteoroids. Any pieces that make it to the Earth’s surface without completely burning up are known as meteorites. A meteor is actually the name given to the light we see when a meteoroid is burning up.
When a meteorite hits the Earth at speeds between 11 and 72 kilometers a second, it can do amazing damage. A very large meteorite could knock the earth out of its orbit. If this happened, all life on Earth would probably become extinct(灭绝). The path we follow around the Sun would change and as a result the Earth would become either much hotter or much colder. This change in temperature would affect sea levels and the amount of water in rivers. There would either be huge floods, which would cover most of the land with water, or the oceans would dry up and there would be a drought, which means a long period of time without rain. Either way, nothing could survive. If a large meteorite landed in the sea it would almost certainly cause tsunamis, which would race towards the land, destroying everything in their paths.
Although it is unlikely the Earth will be struck by a meteorite large enough to do that kind of damage, there is evidence of fairly large meteorites hitting the Earth in the past. In 1908 a large area of forest in Tunguska, Siberia was destroyed by a meteorite that came apart just before it hit the ground. The moon, however, has about three billion craters陨石坑caused by meteorites impacting影响 its surface. The reason more meteorites have reached the surface of the moon than the surface of the Earth is that the moon does not have enough atmosphere for the meteorites to burn up in. some of the meteorites that have reached the Earth’s surface have done considerable damage. Some scientists believe it was a change of climate caused by meteorites hitting the Earth that resulted in the extinction of the dinosaurs and other large prehistoric animals.
Scientists are especially interested in meteorites because they contain information about the solar system. It is widely believed by scientists that most meteorites are produced by collisions(碰撞) between asteroids (small planets). These collisions probably happened many billions of years ago. This means the physical and chemical structure of a meteorite can give scientists information about the early days of the universe.The story is about ___.
A.floods caused by meteors |
B.matter from outer space |
C.life on Earth millions of years ago |
D.meteorites that have damaged the moon |
The Earth has ___.
A.three billion craters |
B.fewer craters than the moon |
C.more craters than the moon |
D.a thinner atmosphere than the moon |
Some scientists believe the dinosaurs became extinct because ___.
A.they were hit by meteors |
B.meteorites landed on their nests |
C.meteorites landed and changed the climate |
D.they could no longer breathe the atmosphere |
Meteors are ___.
A.small planets |
B.the same as asteroids |
C.from broken parts of asteroids |
D.the light we see when meteoroids hit our atmosphere |
China has become Volvo's third largest market, with more of its car models to go on sale in the world's largest auto(汽车) market this year, Chief Executive Office (CEO) of Volvo Cars China said in Tianjin.
Alexander Klose, CEO of Volvo Cars China, told Xinhua at the Ninth Tianjin International Automobile Trade Show, being held from Friday to Wednesday.
Klose said Volvo Cars had entered a new time of fast development, adding that its sales volume in China roared in 2010.
Up to the end of September, Volvo's global sales volume was up 12.5 percent year on year(同年比), compared with 52 percent year-on-year rise in China, he said.
Two new Volvo sales centers opened in Beijing within merely one week in early October, about two months after east China's ZhejiangGeely Holding Group Co acquired(购得)the Swedish brand from the US auto giant Ford for $1.5 billion in early August.
Klose said he was confident of seeing tremendous(巨大的) growth in China's auto market in the next five years. "As the Chinese government has increased the tax rate for large displacement (排量)cars already, we now have a lot of cars below three liters(升), and I think we'll stick to that strategy, as you can see now the XC60 which was introduced today is just two liters," he said.
"As the technology advances, we'll probably even see 1.6 liter engines or 1.5 liter engines in the future," he added.
Volvo Cars is not the only automaker hoping to take advantage of China's rapidly growing auto market.
Bentley, the famous British luxury(豪华) carmaker, will open a new sales center in China at Tianjin Thursday, which is the 11th one in China, according to a press release(新闻发布) by Shanghai-based Zenith Integrated Communications Corp (Zenith) Saturday at the auto show.
Zenth is the public relations agent of Bentley in China. The automaker has sold 421 limousines(大型豪华轿车) to China in 2009, and the goal for 2010 is 777, the release said.The word underlined in the third paragraph would probably be___.
A.shouted loudly | B.increased in large numbers |
C.reduced rapidly | D.burned brightly |
From this passage we can infer that ___.
A.The Ninth Tianjin International Automobile Trade Show was held from Friday to Wednesday. |
B.Volvo Cars is a world-famous carmaker in Britain. |
C.Of all the auto sales volume Volvo sales volume is only number one in China |
D.Volvo sales centers are developing very fast in China recently |
The text is mainly about____.
A.China Becomes Volvo's 3rd largest market |
B.Volvo Cars in China |
C.Volvo Sales Volume in China |
D.Carmakers in China |
How many carmakers are mentioned in this passage which opened and will open new sales centers in China recently?
A.One | B.Two | C.Three | D.Four |
YUZHOU, HENAN –An accident in a central China coal mine killed 21 miners Saturday and left another 16 trapped underground , the government said.
The death toll rose to 26 Sunday morning as rescuers were battling to reach the 11 miners who were still trapped underground, rescue headquarters said.
Rescuers were battling to reach the 11 miners still trapped underground, but chances for them to survive were very slim, said Du Bo, deputy chief of the rescue headquarters.
"Based upon past experience, the remaining 11 miners could be buried in coal dust, so the survival chances are frail," Du said.
More than 2,500 tons of coal dust smothered(厚厚的覆盖) the pit after the gas leak(漏出), which hampered(阻碍) the rescue, said Du.
The gas outburst happened at 6:03 a.m. Saturday when 276 miners were working underground in the mine in Yuzhou City. A total of 239 workers escaped but 21 were found dead and 16 trapped.
An initial(最初的) investigation showed that 173,500 cubic meters of gas leaked out in the accident. Liu Wenbin, a deputy chief engineer of the company that owns the mine, was in the pit(矿井) when the accident happened. He organized the escape.
"At around 6 a.m., I felt there was something wrong with the airflow in the shaft, and one of the team captains told me he also felt it and had already reported the problem," said Liu
The mine is owned by Pingyu Coal & Electric Co. Ltd., a company jointly established by four investors, including Zhong Ping Energy Chemical Group and China Power Investment Corp.What could be the best title for this passage?
A.Death Toll Rises in an Accident in China |
B.A Coal Mine Accident in Central China |
C.An Accident in Central China |
D.Coal Mine Accidents in China |
What does the underlined part mean in the second paragraph?
A.payment required for the use of rescuing persons |
B.the number of people killed in a particular accident |
C.the percentage of the dead persons in an accident |
D.a number of people killed in an accident |
From this passage we know that ____.
A.Of the 276 miners in the mine only 21 were dead until the next morning |
B.The miners trapped underground would be saved without difficulty |
C.16 miners trapped underground were still found alive waiting for the rescue |
D.Until the next morning another 5 miners were found dead in this accident |
According to the writer, which of the following is not true?
A.The mine was owned by more than one company |
B.There was at least one more similar accident happening in Central China before |
C.Before the accident happened there was no sign of something wrong |
D.When the accident happened one of the mine owners was in the pit |