题目
题型:0103 模拟题难度:来源:
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, 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."
B. Scientist Researching Seawater
C. Oceans Becoming More Acidic
D. Climate Change Affecting Seawater
a. Sea life is endangered.
b. CO2 goes into the surface water.
c. The ocean chemistry is affected.
d. CO2decreases the PH and makes the seawater more acidic.
e. CO2 levels in the atmosphere go up.
B. e-b-c-d-a
C. a-e-b-c-d
D. e-d-c-b-a
B. the expectation of other scientists
C. some former theory
D. a major cause of climate change
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.
答案
核心考点
试题【阅读理解。 Rising levels of carbon dioxide in the atmosphere are a major cause o】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
three times a week at 4 a.m.? The noise-described by Blomberg as "loud as a NASCAR (全国运动汽车竞赛
协会) race car but at a speed of 5 miles per hour-annoyed him so much that he tried to persuade the city to
rearrange for street sweeping to begin at 6 a. m. He also founded the non-profit Noise Pollution Clearinghouse,
an organization that provides research and information to others whose request for quiet might otherwise fall
on deaf ears.
Hearing loss is the most obvious medical consequence of noise pollution, but it is hardly the only one,
explains environmental psychologist Airline Bronzaft. In her research, Bronzaft found that constant noise
exposure can reduce children"s learning ability and cognitive (认知的) development."Most importantly, each
day, you"ve got to take a break from sound regularly." says Bronzaft.
"The bad news," says Blomberg, "is that the last century was the noisiest in history. The good news," he
continues, "is that the greener we get, the quieter we"ll also get." Electric cars and lawn equipment make less
noise, just as more fuel-efficient vehicles. Improved technology can also provide measures to make the
problem less serious. Police cars could replace those loud sirens (警报器) with models that better aim the
sound in one direction.
"I don"t think you can name a noise source that I can"t find a way to make it quieter," says Blomberg. But
the real challenge is to change people"s attitudes." In the 1960s, we made it unacceptable to throw litter out of
the window of your car," he says. Today it"s time to recognize that"noise is to the soundscape as rubbish is
to the landscape." The goal is to "create a culture where you do not throw your "noise" litter out of the
window."
as a mark of beauty, intelligence and success. These beliefs can lead to social pressure even within the same
racial or ethnic group, if some members are darker skinned than others.
The result is that skin lightening has become a common activity across Africa, Asia and other areas of
the world. More and more people with dark skin are using skin-lightening products, even if they may face
health risks.
They believe that having whiter skin will improve their lives. Many people think they will have a better
chance of getting a job or marrying into a better family. Or they want to look like what their society generally
considers beautiful.
Some beauty care products and soaps contain chemicals that make skin lighter. This process is also called
bleaching. But some of the chemicals are extremely dangerous. One of the chemicals has been linked to
kidney (肾) damage and some kinds of cancer. It also causes low birth weight in babies when mothers use it
during pregnancy.
At first, bleaching products make the skin color lighter. But after long-term use they can cause problems.
They can even make some skin darker. The chemicals in the products block and break down the natural
process that gives color to skin. The skin loses its natural barrier to protect against sunlight. Then the skin
can become thick and discolored. Usually the person will use more of the product in an effort to correct the
problem, but this only makes it worse.
Fatimata Ly treats skin conditions in the Senegalese capital, Dakar. Doctor Ly says skin bleaching has
become a problem throughout Senegal. She says the chemicals are now more dangerous because they are
stronger. Some cases have resulted in blackened fingernails, infections and permanent skin damage.
And these are not the only risks. Experts say some people who change their skin color suffer emotional
damage. They feel regret and sadness. They feel that instead of risking their health, they should have learned
to love and accept their skin color as it was.
B. changing
C. lighting
D. pleasing
B. Many people with dark skin have no confidence.
C. Relatively speaking, light skin has more advantages over dark skin.
D. People with dark skin are forced by the pressure of their families.
B. permanent skin damage
C. emotional damage
D. a waste of time and money
probably ______.
B. positive
C. doubtful
D. negative
island by last December"s tsunami, say researchers.
Harindra Fernando, a fluid dynamicist (力学家) at Arizona State University in Tempe, made the connection
after a visit to his native Sri Lanka earlier this year. While serving as a scientific expert and translator for a
BBC-documentary team, he chatted with locals who said they saw the tsunami turn sideways when it hit
coral-which would have made it less powerful than in coral-free areas. Fernando linked this to trucks he had
seen last year carrying piles of coral away from the sea.
Using the eyewitness reports, estimates (估算) of wave heights, and a series of divers to check the
presence or absence of corals, Fernando and his colleagues produced a map of coral gaps and wave flooding
along Sri Lanka"s southwest coast.
The tsunami reached significantly farther inland through the gaps: in one instance, the water traveled 1.5
kilometres long and knocked a passenger train off its tracks, killing 1,700. But only a few kilometers away,
where the coral was still undamaged, the wave travelled just 50 metres inland and caused no deaths.
There is a similar phenomenon. In Nicaragua in 1992, a tsunami poured through a break in the coral reef
made to let boats through. "Within this passage, water went one kilometre inland," says Fernando. "But
nearby, where the coral was undamaged, there were still beach umbrellas standing."
In Sri Lanka, coral is illegally mined to provide souvenirs for tourists, or to be used in house paint. Coral
harvesters sometimes blow it up with dynamite (炸药) in order to collect fish at the same time. Often, the
reefs in the best shape are those in front of hotels, as the hotel owners maintain them for the tourists.
Fernando hopes that his findings will encourage the Sri Lankan government to enforce (实施) its laws against
coral mining.
[ ]
B. helping the Sri Lankan government enforce its laws against coral mining
C. producing a map of coral gaps along Sri Lanka"s southwest coast
D. linking the coral removal with the destruction of Tsunami
[ ]
B. coral-free area is a danger to passenger trains
C. in general, water travels 30 times farther inland in a coral-free area
D. it is urgent to enforce laws against coral mining
[ ]
B. Tourists" sightseeing.
C. Fish collecting.
D. Tourists" souvenirs.
[ ]
B. Stop Using Coral as Souvenirs
C. Coral Cried "Help! Help!"
D. Coral Mining Enhanced (加剧) Tsunami Damage
you are more than twice as likely to die of skin cancer than a woman, and nine times more likely to die of
AIDS. Assuming you make it to the end of your natural term, about 78 years for men in Australia, you will
die on average five years before a woman.
There are many reasons for this, men take more risks than women and are more likely to drink and
smoke, but perhaps more importantly, men don"t go to the doctor.
"Men aren"t seeing doctors as often as they should," says Dr. Gullotta, "This is particularly so for the
over-40s, when diseases tend to strike." Gullotta says a healthy man should visit the doctor every year or
two. For those over 45,it should be at least once a year.
According to a recent survey, 95%of women aged between 15 and early 40s see a doctor once a year,
compared to 70% of men in the same age group.
"A lot of men think they are invincible (不可战胜的)" Gullotta says "They only come in when a friend
drops dead on the golf course and they think "Dear me, if it could happen to him, …""
Then there is the ostrich (鸵鸟) approach, "Some men are scared of what might be there and would
rather not know," says Dr. Ross Cartmill. "Most men get their cars serviced more often than they service
their bodies," Cartmill says. He believes most diseases that commonly affect men could be addressed by
preventive check-ups. Regular check-ups for men would inevitably (不可避免地) place stress on the public
purse. Cartmill says. "But prevention is cheaper in the long run than having to treat the diseases. Besides, the
final cost is far greater."
the passage?
B. Men aren"t as cautious as women in face of danger.
C. Men don"t seek medical care as often as women.
D. Men are more likely to suffer from fatal diseases.
B. I should consider myself lucky.
C. it would be a big misfortune.
D. it could happen to me, too.
B. Refusal to get medical treatment for fear of the pain involved.
C. Unwillingness to find out about one"s disease because of fear.
D. A casual attitude towards one"s health conditions.
B. They will save money in the long run.
C. They may cause psychological stress on men.
D. They will enable men to live as long as women.
the COP15 meetings, or a city where people bike even though they have cars.
When landing on Copenhagen Tasstrup Airport, you can see numbers of white propeller generators
standing in the blue waterfront. The constant moving paddles are producing renewable energy to the city.
During the recent Climate Change Conference, the city was introduced to the world as an example of
climate-friendly city. Evidences other than wind power stations were obvious everywhere.
While private cars can be a great source of pollution in other cities, the main form of transport in the
capital of Denmark is, however, public transportation. By public transportation, I mean one of very good
quality. Buses are usually Volvo and most of the traffic lights are of Siemens. Additionally, buses, metros
and intercity-trains (named S-train) are well equipped, constantly maintained, special and good-looking. The
seats in the trains are of sofa-designed. Sticky gum or dirty spot rarely appear. Thanks to a small population,
it is much easier to maintain the condition of the vehicles. Free wireless internet service is provided in S-trains.
Seats are always possible even at rush hours if the passenger is patient enough to look for it. Taking the
convenience for granted, Danish people find it hard to imagine how the metro in Tokyo can be as crowded
as a "sardin can". Pets and baby-wagons are allowed in buses, subways and S-trains. All the facilities enable
better service to bigger passenger group. It is also notable that the mass transit uses green fuels and electricity.
Cars are common in Copenhagen, but people have an alternative of short distance transport: bikes.
Denmark is known as bike-friendly for many reasons, such as flat land, splendid cycle ways, and the Danish
fond of motion. But please be aware that riding a bike in Copenhagen is not like biking in Beijing. First of all,
it is quite speedy. Many people ride to work every morning. Punctuality is important and they have to ride as
fast as possible to be on time. So why not speed up? Not my philosophy. As a result, I am often hastened by
impatient riders who unfortunately piled up after me. Second, considering the speed, bike helmets, front and
back lights and other necessary accessories are required. Riders need to set a white light in the front of the
bike and red light at the back. One may end up with a big fine if not riding with them.
B. different kinds of green energy keep this city running
C. a lot of electricity is imported from other countries
D. people in this city use little energy
B. which uses wind to run their ways
C. which is the only way for you to go from one city to another
D. which you are not allowed to take if you take a pet
B. Not being scolded
C. Not being late
D. Speeding
B. it means that you need to buy a better bike
C. you may block the traffic flow
D. many bike riders will shout at you
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