Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and now a new study has confirmed that atmospheric CO2 is also affecting the ocean chemistry and potentially harming sea life.
Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades.
“We’ve been going to the same spot in the Pacific Ocean, and we try and characterize long-term change in the open ocean environment. And one of the key things that we measure is CO2 levels. And we’ve been able to record this increasing quantity of atmospheric CO2 into the ocean.”
Scientists expected that as atmospheric CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.
“As carbon dioxide dissolves (溶解) in the water, or seawater in this case, it forms a weak acid (酸), carbonic acid, ” Dore explains. “And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the pH down, and makes it more acidic.”
The seawater Dore and his colleagues have analyzed confirms what the theory predicts.
The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.
“It’s important to realize that the oceans are really becoming acidic。And it can have negative impacts on a whole variety of sea life from fish to coral. It’s potentially catastrophic.”
1. What can be the best title of the passage?
A. Sea Life Facing Danger B. Scientist Researching Seawater
C.Oceans Becoming More Acidic D. Climate Change Affecting Seawater
2. Which of the following shows the process of the impact of atmospheric CO2 on sea life?
a. Sea life is endangered.
b. CO2 goes into the surface water.
C.The ocean chemistry is affected.
d. CO2 decreases the pH and makes the seawater more acidic.
e. CO2 levels in the atmosphere go up.
A. a→b→c→d→e B. e→b→c→d→a
C.a→e→c→d→b D. e→d→c→b→a
3. Scientist Robert Dore came to the conclusion based on ________.
A. his research and analysis B. the expectation of other scientists
C.some former theory D. a major cause of climate change
4. What does the passage want to tell us most?
A. It takes time to make a scientific study.
B. Atmospheric CO2 is doing harm to sea life.
C.Robert Dore is a committed and serious scientist.
D. Measures should be taken to prevent the potential catastrophe.
The Man of Many Secrets
Harry Houdini was one of the greatest American entertainers in the theater this century．He was a man famous for his escapes—from prison cells，from wooden boxes floating in rivers，from locked tanks full of water．He appeared in theaters all over Europe and America．Crowds came to see the great Houdini and his “magic”tricks．
0f course，his secret was not magic，or supernatural powers．It was simply strength．He had ability to move his toes as well as to move his fingers．He could move his body into almost any position he wanted．
Houdini started working in the entertainment world when he was 17，in 1891．He and his brother Theo performed card tricks in a New York club．They called themselves the Houdini brothers．When Harry married in 1894，he and his wife Bess worked together as magician and assistant，but for a long time they were not successful．Then Harty performed his first prison escape，in Chicago in 1898．Harry persuaded a detective to let him try to escape from the prison，and he invited the local newspaperman to watch．It was the publicity(名声)that came from this that started Harry Houdini’s success．
Harry had fingers trained to escape from handcuffs(手铐)and toes trained to escape from ankle chains，but his biggest secret was how he unlocked the prison doors．Every time he went into the prison cell，Bess gave him a kiss for good luck—and a small skeleton key，which is a key that fits many locks passed quickly from her mouth to his．
Harry used these prison escapes to build his fame．He arranged to escape from the local jail of every town he visited．In the afternoon the people of the town would read about it in their local newspapers．and in the evening every seat in the local theater would be full．What was the result? Worldwide fame，and a name remembered today．According to the passage，Houdini’s success in prison escapes depends on．
| A．his magic tricks and inhuman powers | B．his special tricks and a skeleton key |
| C．his unusual ability and skeleton key | D．his inhuman talents and magic tricks |
According to the passage，how did Houdini get the key which helped him unlock prison door?
| A．He took the key from his wife’s mouth． |
| B．His wife passed it to his hand while kissing him． |
| C．His wife gave it to him by a magic trick． |
| D．He got it in his mouth through a kiss by his wife． |
It can be inferred from the passage that Houdini became famous．
| A．when he was about 24 | B．when he was about 17 |
| C．after the year 1894 | D．before the year 1898 |
Although there are no state controlled survival courses in Britain or the United States，there are various independent organizations offering similar activities．Students can participate(take part)in outdoor training courses through university clubs and societies．Anyone can register with such groups，which then organize courses，training and trips for all members．
One of the most popular outdoor training programmes in both the US and Britain is Outward Bound(户外训练)．It was founded in 1941 in Wales and attracts hundreds of thousands of adventurous types every year. The courses are intended to broaden minds through experiences that build confidence, self-esteem(自尊)and character．As well as specialist courses such as canoeing，leadership skills and sailing，participants can take part in week long adventure training camps which include a host of sports and survival training education skills．
Michael Williams，an American student，took part in an Outward Bound course last year．He said：“We learned lots of first aid skills，lots of natural history ,lots of environmental facts, and participated in a wildlife preservation programme．Beyond that，my favorite skills learned were sailing and rock climbing.”Courses can last up to 40 days and are open to anyone over the age of 14．Students must be in general good health，but do not need to be experienced in outdoor-sports．There is no selection process；everyone is welcome，although new participants are advised to pick a course matching their physical capacity．Most of the British courses take place in the Brecon Beacons in Wales．Another similar organization is the UK Survival School，which includes courses on learning to 1ive with the environment，sailing and winter survival．On a basic survival weekend students will learn how to get water and food, how to make fire and cook with it，to find and build a shelter，control survival life support，how to cross rivers．Send off a distress signal，and to use compasses(指南针)by day and night．
According to the leaders，such adventures are “an awakening, an exploration into the unknown.”Outward Bound believes that participants will “use mind and body traveling some of the Earth’s roughest wilderness areas．”In Britain and the United States，survival courses are popular with．
| A．old people | B．young people | C．dangerous people | D．weak people |
The advantage of the training courses is that.
| A．participants can make friends with others |
| B．participants can visit some places of interest |
| C．participants can experience different adventures |
| D．participants can learn how wonderful nature is |
In an Outward Bound course last year，the most exciting experience Michael Williams had was.
| A．learning first aid skills | B．collecting facts of environment |
| C．rock climbing and sailing | D．preserving wildlife |
They are among the 250, 000 people under the age of 25 who are out of work in the Netherlands, a group that makes up 40 percent of
the nation’s unemployed．A storm of anger boils up at the government-sponsored （政府资助的） youth center, even among those who ar
e continuing their studies．
“We study for jobs that don’t exist,” Nicollets Steggerda, 23, said．
After thirty years of prosperity, unemployment among 10 member nations of the European Community has reached as much as 11 percent, affecting a total of 12．3 million people, and the number is climbing．
The bitter disappointment long expressed by British youths is spreading across the Continent．The title of a rock song “No Future” can now be seen written on the brick walls of closed factories in Belgium and France．
One form of protest（抗议） tends to put the responsibility for a country’s economic troubles on the large numbers of “guest workers” from Third World nations, people welcomed in Western Europe in the years of prosperity．
Young Europeans, brought up in an extended period of economic success and general stability, seem to be similar to Americans more than they do their own parents．Material enjoyment has given them a sense of expectation, even the right to a standard of living that they see around them．
“And so we pass the days at the discos, or meet people at the café, and sit and stare,” said Isabella Cault．"There is usually not much conversation．You look for happiness．Sometimes you even find it．”Unemployment in the Netherlands has affected _______
| A．one million people | B．250,000 people |
| C．1ess than half of the population | D．about 0.6 million people |
What Nicollete Steggerda said （Para．2） means that ________．
| A．the students cannot get work after graduation |
| B．what the students learn is more than necessary |
| C．the students’ aim in study is not clear |
| D．school education is not sufficient |
The underlined word ‘‘it” in the last paragraph most probably refers to ________．
| A．material enjoyment | B．a sense of expectation |
| C．happiness | D．a job |
With alarming regularity, we read about oil tankers having accidents near land and the terrible consequences of the oil spills（泄露） on people, nature, and the environment．
Millions of dollars have been used in developing special chemicals to help dismiss the spills and to clean up the animals, beaches, and land spoiled by the oil．Unfortunately, when many of these chemicals are used, more damage is caused to the environment, especially to lives in the sea．
Of all of today’s environmental disasters, an oil spill may actually be one of the least serious．Although oil is poisonous, it is a natural material．In the end, it breaks down naturally．There are, of course, long-term effects, but it is usually more serious in the short term．
Nature by itself works better than chemical materials, but when there is a spill we demand that governments act immediately with as much hi-tech knowledge as possible．In 1967 the tanker Torrey Canyon sank off the Sicily Isles near the coast of England and spilled 120,000 tones of oil into the ocean．If you go there today, you will find it hard to see any sign that it ever happened．
Governments seem to accept the risk of transporting millions of tons of oil by ship every day so that we can fill up our cars and drive around and cause even more environmental damage．Interestingly, the biggest companies in the world produce cars, and the next biggest supply the gasoline to make them run!
We should be thinking more about reducing our dependency on oil．Governments should be encouraging research into new technologies, such as cars run by solar power（太阳能）, electricity, hydrogen, and so on．Much of this research has, in the past, been held back by the oil, gas, and coal．
If the world’s millions of cars were 10% more efficient（高效的）— and the industry could easily produce cars at least twice as efficient — we would need many fewer tankers crossing the oceans each year．If this happened, the risks of oil spills would be reduced, and the air we breathe would be cleaner and fresher, too．What is the passage mainly talking about?
| A．Oil tanker accidents． | B．Oil spills pollution． |
| C．What oil pollution is． | D．How to reduce oil pollution． |
How does the author support the idea that oil spills are not as serious as people believe?
| A．By giving a description． | B．By making an argument． |
| C．By giving an example． | D．By drawing a diagram． |
What does the underlined word “risk” in Paragraph 5 refer to?
| A．Transportation depending more on oil． |
| B．Poisonous oil breaking down naturally． |
| C．Millions of tons of oil spilling into the sea． |
| D．More environmental damage being caused． |
Which suggestion is made for reducing oil tank accidents according to the passage?
| A．We should develop new technologies to cut oil use |
| B．Tankers should not be allowed to sail near the coastlines． |
| C．We should build safer oil tankers in the near future． |
| D．Countries should build more oil pipelines under the sea． |
Volunteers, as an essential part of a successful world exposition, are a major channel for the public to participate in, serve and share the world exposition and a means to showcase the image of the host country and city．The following information is about the volunteer for the World Exposition 2010 Shanghai China．
I．Basic Requirements for Volunteers
Be willing to participate in voluntary services of Expo 2010;
Age limit: Expo Site volunteers must be born before April 30, 1992 and Expo City Voluntary Service Station volunteers before April 30, 1994;
Obey the laws and regulations of the PRC;
Be able to participate in training and relevant activities before the opening of Expo 2010;
Possess necessary knowledge and skills needed by the position;
Be in good health to meet the requirements of corresponding voluntary positions．
II．Further Information for Volunteers
Source
Residents of Chinese mainland, Hong Kong, Macau and Taiwan, as well as overseas Chinese, and foreigners can all apply to be the volunteers．
Signup methods
Applicants may log in onto the official websites for online signup．They may also consult or connect with the Expo Volunteer Stations．
Time
May 1 – December 31, 2009
III．Volunteer Training
Volunteer training includes general training, special training and position training．General training is carried out through the Internet, while special training and position training are provided through classroom lectures and field practice．
IV．Volunteer Types
Expo Site volunteers refer to those offering voluntary services to visitors and the Organizer in the Expo Site, mainly including information, visitor flow management, reception, translation and interpretation, assistance for the disabled, and assistance in media service, event and conference organization and volunteer management．
Information booth volunteers are stationed in the Expo’s information booths at key transportation centers, commercial outlets, tourist attractions, restaurants, hotels and cultural event places outside the Expo Site．They offer services including information, translation, interpretation and even first aid．What’s the purpose of this writing?
| A．To recruit（招募） the volunteers for the World Expo 2010 |
| B．To give some basic information of the World Expo 2010 |
| C．To praise the hard work of the volunteers |
| D．To attract people to visit the World Expo 2010 |
If you were born in April 1993, where can you be a volunteer?
| A．In the Expo Site． | B．In the host country． |
| C．In the Expo City． | D．In Chinese mainland． |
