根据以下材料,回答题Sharks Perform. a Service for Earth"s WatersIt is hard to get people to - 试题答案网问答

第1题

根据材料，回答题。 Sharks Perform. a Service for Earth"s Waters.It is hard to get people to

根据材料，回答题。

Sharks Perform. a Service for Earth"s Waters.

It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to________ （51 ）people frequently. But these fish perform. a ________ （52 ）service for earth"s waters and for human beings. Yet business and sport fishing are threatening their________ （53）. Some sharks are at ________ （54） of disappearing from earth.

Warm weather may influence both fish and shark activity. Many fish swim near coastal areas________ （55 ） their warm waters. Experts say sharks may follow the fish into the same areas，________ （56）people also swim. In fact，most sharks do not purposely charge at or bite humans.

They are thought to mistake a person________ （57 ） a sea animal， such as a seal or sea lion. That is why people should not swim in the ocean when the sun goes down or comes up. Those are the________.（58 ）when sharks are looking for food. Experts also say that bright colors and shiny jewelry may cause sharks to attack.

A shark has an extremely good sense of smell. It can find small amounts of substances in water， such as blood， body liquids and ________ （59）produced by animals. These powerful________ （60） help sharks find their food. Sharks eat fish， any________ （61 ） sharks ，and plants that live in the ocean.

Medical researchers want to learn more about the shark"s body defense and immune systems________ .（62） disease. Researchers know that sharks ________ （63）quickly from injuries. They study the shark in hopes of finding a way to fight human disease.

Sharks are important for the world"s________.（64）. They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too________ （65）. This protects the plants and other forms of life that exist in the oceans.

回答（51）题查看材料

A.attack

B.meet

C.love

D.visit

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第2题

根据下列答案，回答题。A．Bangkok rose 2 per cent on the day and 3.4 per cent over the week as

根据下列答案，回答题。

A．Bangkok rose 2 per cent on the day and 3.4 per cent over the week as buyers moved in to large market capitalization stocks. The SET index rose 27. 55 to 1，383. 57 in turnover of Bt 8. 5bn， down from Thursday"s Bt 10bn.

B．Taipei was pulled lower by late profit-taking in industrials after Thursday"s rebound， and the weighted index fell 45. 59 to 5， 806. 77， or 1.7 percent， over the week. Turnover rose to T $41.51bn from T $35. 78bn.

C．Manila opened strongly on foreign buying of blue chips but dipped at the close as profits were taken. The composite index fell 10. 07 to 2， 907. 00， 1.3 per cent higher on the week.

D．Hong Kong finished a mixed day slightly lower， sapped by profit-taking on confirmation of US renewal of China"s MFN trade status and concerns over the lower domestic property market. The Hang Seng index fell 11.58 to close to 470. 13， 1.7 per cent lower on the week.

The share prices were influenced by the improvement of the two countries’relations．

查看材料

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第3题

根据以下材料，回答题American DreamsThere is a common response to America among foreign writ

根据以下材料，回答题

American Dreams

There is a common response to America among foreign writers: the US is a land of extremes where the best of things are just as easily found as the worst. This is a cliche （陈词滥调）.

In the land of black and white， people should not be too surprised to find some of the biggest gaps between the rich and the poor in the world. But the American Dream offers a way out to everyone. __________ （46） No class system or government stands in the way.

Sadly， this old argument is no longer true. Over the past few decades there has been a fundamental shift in the structure of the American economy.

The gap between the rich and the poor has widened and widened. __________ （47）Over the past 25 years the median US family income has gone up 18 percent. For the top 1 per cent， however， it has gone up 200 percent.Twenty-five years ago the top fifth of Americans had an average income 6.7 times that of the bottom fifth. __________ （48）

Inequalities have grown worse in different regions.In California， incomes for lower class families have fallen by 4 percent since 1969. __________ （49） This has led to an economy hugely in favor of a small group of very rich Americans.The wealthiest 1 per cent of households now control a third of the national wealth.There are now 37 million Americans living in poverty.At 12.7 percent of the population， it is the highest percentage in the developed world.

Yet the tax burden on America"s rich is falling， not growing. __________ （50） There was an economic theory holding that the rich spending more would benefit everyone as a whole.But clearly that theory has not worked in reality.

回答（46）题查看材料

A.Nobody is poor in the US.

B.The top 0.01 percent of households has seen its tax bite fall by a full 25 percentage points since 1980.

C.For upper class families they have risen 41 percent.

D.Now it is 9.8 times.

E.As it does so， the possibility to cross that gap gets smaller and smaller.

F.All one has to do is to work hard and climb the ladder towards the top.

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第4题

根据以下材料，回答题The Drink Your Body Needs Most（1） Our bodies are estimated to be about

根据以下材料，回答题

The Drink Your Body Needs Most

（1） Our bodies are estimated to be about 60% to 70% water. Blood is mostly water， and our muscles， lungs， and brain all contain a lot of water. Water is needed to regulate body temperature and to provide the means for nutrients （滋养物） to travel to all our organs. Water also transports oxygen to our cells， removes waste， and protects our joints and organs.

（2） We lose water through urination （排尿）， respiration （呼吸）， and by sweating. If you are very active， you lose more water than if you do not take much exercise. Symptoms of mild dehydration （脱水） include chronic pains in joints and muscles， lower back pain， headaches，and constipation （便秘）. A strong smell to your urine， along with a yellow color indicates that you are not getting enough water. Thirst is all obvious sign of dehydration and in fact， you need water long before you feel thirsty.

（3） A good rule of thumb （好的做法） is to take your body weight in pounds and divide that number in half. That gives you the number of ounces （盎司） of water per day that you need.

For example， if you weigh 160 pounds， you should drink at least 80 ounces of water per day.

If you exercise you should drink another 8ounce glass of water for every 20 minutes you are active. If you drink coffee or alcohol， you should add at least an equal amount of water. When you are traveling on an airplane， it is good to have 8 ounces of water for every hour you are on board the plane.

（4） It may be difficult to drink enough water on a busy day. Be sure you have water handy at all times by keeping a bottle for water with you when you are working， traveling， or exercising. If you get bored with plain water， add a bit of lemon for a touch of flavor. There are some brands of flavored water available， but some of them have sugar or artificial sweeteners that you don"t need.

Paragraph 1 __________ 查看材料

A.Ounces of water needed per day

B.Importance of water

C.Composition of water

D.Signs of dehydration

E.Supply of water

F.Necessity for bringing a bottle for water

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第5题

根据以下材料，回答题Living StandardsThe differences in living standards around the world ar

根据以下材料，回答题

Living Standards

The differences in living standards around the world are vast. In 1993， the average American had an income of about $25，000. In the same year， the average Mexican earned $7，000， and the average Nigerian earned $1，500. Not surprisingly， this large variation in average income is reflected in various measures of the quality of life. Changes in living standards over time are also large. In the United States， incomes have historically grown about 2 percent per year （after adjusting for changes in the cost of living）. At this rate， average income doubles every 35 years. In some countries， economic growth has been even more rapid. In Japan， for instance， average income has doubled in the past 20 years， and in South Korea it has doubled in the past 10 years.

What explains these large differences in living standards among countries and over time？ The answer is surprisingly simple. Almost all variation in living standards is attributable to differences in countries" productivity—— that is， the amount of goods and services produced from each hour of a worker"s time. In nations where workers can produce a large quantity of goods and services per unit of time， most people enjoy a high standard of living; in nations where workers are less productive， most people must endure a more meager existence. Similarly， the growth rate of a nation"s productivity determines the growth rate of its average income.

The fundamental relationship between productivity and living standards is simple， but its implications are far-reaching. If productivity is the primary determinant of living standards， other explanations must be of secondary importance. For example， people might think that labor unions or minimum-wage laws contributed to the rise in living standards of American workers over the past century. Yet the real hero of American workers is their rising productivity.

The relationship between productivity and .living standards also has great implications for public policy. When thinking about how any policy will affect living standards， the key question is how it will affect our ability to produce goods and services. To improve living standards，policymakers need to raise productivity by ensuring that workers are well educated， have the tools needed to produce goods and services， and have access to the best available technology.

Which of the following countries has enjoyed the fastest economic growth in history？查看材料

A.Mexico.

B.The United States.

C.Japan.

D.South Korea.

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第6题

根据以下材料，回答题Lakes， Too， Feel Global WarmingThere"s no doubt: In the last few decade

根据以下材料，回答题

Lakes， Too， Feel Global Warming

There"s no doubt: In the last few decades， the average temperature on Earth has been higher than it has been in hundreds of years. Around the world， people are starting to measure the effects of global warming—— and trying to figure out what to do about it.

Scientists recently used satellites to study the temperatures of lakes around the world， and they found that lakes are heating up. Between 1985 and 2009， satellites recorded the nighttime temperatures of the surfaces of 167 lakes. During those 24 years， the lakes got warmer——by an average of about 0.045 degree Celsius per year.

In some places， lakes have been warming by as much as 0.10 degree Celsius per year. At that rate， a lake may warm by a full degree Celsius in just 10 years. That difference may seem small——you might not even notice it in your bath. But in a lake， slightly warmer temperatures could mean more algae （水藻）， and algae can make the lake poisonous （有毒的） to fish.

The study shows that in some regions， lakes are warming faster than the air around them. This is important because scientists often use measurements of air temperature to study how Earth is warming. By using lake temperatures as well， scientists can get a better picture of global warming.

The scientists say data on lakes give scientists a new way to measure the impact of climate change around the world.

That"s going to be useful， since no country is too big or too small to ignore climate change.

Scientists aren"t the only ones concerned. Everyone who lives on Earth is going to be affected by the rapid warming of the planet. Many world leaders believe we might be able to do something about it， especially by reducing the amount of greenhouse （温室） gases we put into the air.

That"s why the United Nations started the Framework Convention on Climate Change， or UNFCCC. Every year the convention meets， and representatives from countries around the world gather to talk about climate change and discuss global solutions to the challenges of a warming world.

Scientists have been keeping records of lake temperatures for over 30 years. 查看材料

A.Right

B.Wrong

C.Not mentioned

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第7题

根据以下材料，回答题。They Say Ireland"s the BestIreland is the best place in the world to l

根据以下材料，回答题。

They Say Ireland"s the Best

Ireland is the best place in the world to live in for 2005， according to a life quality ranking that appeared in Britain"s Economist magazine last week:

The ambitious attempt to compare happiness levels around the world is based on the principle that wealth is not the only measure of human satisfaction and well-being.

，The index of the countries uses data on incomes， health， unemployment， climate， political stability， job security， gender equality as well as what the magazine calls "freedom， family and community life".

" Despite the bad weather， troubled health service， traffic congestion， gender inequality， and the high cost of living， Ireland scored an impressive 8.33 points out of 10.

That put it well ahead of second-place Switzerland， which managed 8.07. Zimbabwe， troubled by political insecurity and hunger， is rated the gloomiest， picking up only 3.89 points.

"Although rising incomes and increased individual choices are highly valued，" the report said， "some of the factors associated with modernization such as the breakdown in traditional institutions and family values in part take away from a positive impact. "

"Ireland wins because it successfully combines the most desirable elements of the new with the preservation of certain warm elements of the old， such as stable family and community life. "

The magazine admitted measuring the quality of life is not a straightforward thing to do， and that its findings Would have their critics.

No. 2 on the list is Switzerland. The other nations in the top 10 are Norway， Luxembourg，Sweden， Australia， Iceland， Italy， Denmark and Spain.

The UK is positioned at No. 29， a much lower position chiefly because of the social and family breakdown recorded in official statistics. The US， which has the second highest per capita GDP after Lux~mbourg， took the 13th place in the survey. China was in the lower half the league at 60th.

For 2，005 years， Ireland has been the best place for humans to live in.. 查看材料

A.Right

B.Wrong

C.Not mentioned

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第8题

根据以下材料，回答题Living Standards Around the WorldThe differences in living standards ar

根据以下材料，回答题

Living Standards Around the World

The differences in living standards around the world are vast. In 1993， the average American had an income of about $25，000. In the same year， the average Mexican earned $7，000， and the average Nigerian earned $1，500. Not surprisingly， this large variation in average income is reflected in various measures of the quality of life. Changes in living standards over time are also large. In the United States， incomes have historically grown about 2 percent per year （after adjusting for changes in the cost of living）. At this rate， average income doubles every 35 years. In some countries， economic growth has been even more rapid. In Japan， for instance， average income has doubled in the past 20 years， and in South Korea it has doubled in the past 10 years.

What explains these large differences in living standards among countries and over time？ The answer is surprisingly simple. Almost all variation in living standards is attributable to differences in countries" productivity—— that is， the amount of goods and services produced from each hour of a worker"s time. In nations where workers can produce a large quantity of goods and services per unit of time， most people enjoy a high standard of living; in nations where workers are less productive， most people must endure a more meager existence. Similarly， the growth rate of a

nation"s productivity determines the growth rate of its average income.

The fundamental relationship between productivity and living standards is simple， but its implications are far-reaching. If productivity is the primary determinant of living standards， other explanations must be of secondary importance. For example， people might think that labor unions or minimum-wage laws contributed to the rise in living standards of American workers over the past century. Yet the real hero of American workers is their rising productivity.

The relationship between productivity and living standards also has great implications for public policy. When thinking about how any policy will affect living standards， the key question is how it will affect our ability to produce goods and services. To improve living standards，policymakers need to raise productivity by ensuring that workers are well educated， have the tools needed to produce goods and services， and have access to the best available technology.

Which of the following countries has enjoyed the fastest economic growth in history？查看材料

A.Mexico.

B.The United States.

C.Japan.

D.South Korea.

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第9题

根据以下材料，回答题HighwaysWith the increase in auto production， private turnpike （收费公

根据以下材料，回答题

Highways

With the increase in auto production， private turnpike （收费公路） companies under local authorities began to spring up， and by 1921 there were 387，000 miles Of paved roads. At that time，

there were no national standards for size， weight restrictions， or weight of trucks. During the World War I， roads throughout the country were nearly destroyed by the weight of trucks. When General Eisenhower returned from Germany in 1919， he noted: "The old convoy （车队） had started me thinking about good， two-lane highways， but Germany"s Autobahn or motorway had made me see the wisdom of broader ribbons across the land."

The interstate highway system was finally started in 1956. To build its 44，000-mile web of highways， bridges， and tunnels， hundreds of unique engineering designs and solutions had to be worked out. Considering the many geographic features of the country such as mountains， steep grades， wetlands， rivers， deserts and plains， innovative designs of roadways began to weave their way across the country， forever altering the face of America.

Today， the interstate system links every major city in the U.S.， and the U.S. with Canada and Mexico. Built with safety in mind， the highways have wide lanes and shoulders， dividing medians，or barriers， long entry and exit lanes， curves engineered for safe turns， and limited access. The death rate on highways is half that of all other U.S. roads （0.86 deaths per 100 million passenger miles compared to 1.99 deaths per 100 million on all other roads）.

By opening the North American continent， highways have enabled consumer goods and services to reach people in remote and rural areas of the country， spurred the growth of suburbs，and provided people with greater options in terms of jobs， access to cultural program， health care，and other benefits. Above all， the interstate system provides individuals with what they cherish most: personal freedom of mobility.

The interstate system has been an essential element of the nation"s economic growth in terms of shipping and job creation: more than 75 percent of the nation"s freight deliveries arrive by truck;and most products that arrive by rail or air use interstates for the last leg of the journey by vehicle.

Not only has the highway system affected the American economy by providing shipping routes， it has led to the growth of spin-off industries like service stations， motels， restaurants， and shopping centers. It has allowed the relocation of manufacturing plants and other industries from urban areas to rural.

National standards for paved roads were in place by 1921. 查看材料

A.Right

B.Wrong

C.Not mentioned

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第10题

根据下面资料，回答题 Another Successful Year The UK-based agricultural and garden equipment

根据下面资料，回答题

Another Successful Year

The UK-based agricultural and garden equipment group PLT has had another successful year and is looking forward to the future with （0）.....B.....The group， which also has distribution and fuel （19）......has enjoyed record profits for the fifth year in A．（20）......

Pre-tax profits for the year （21） March 31 rose by 24 percent to ε 4.2 million.Total group sales （22）...... by five per cent to ε155 million， with the agricultural business delivering yet another record （23）......despite the somewhat difficult trading （24）......in the industry. Sales in the garden equipment （25）.....were slow in the early months of the year but increased dramatically in the finalquarter.

Chairman Suresh Kumar said， "It is my （26）......that we have continued to grow by（27）.....our customers well. I am delighted to （28）.....the continued development of our customer （29）......and I would like to thank all our customers for their （30）.....As well as an increase in customers， our staff numbers also continue to grow. During the year

we have taken （31）.....58 new employees so that our total workforce now numbers in excess of 700. All of the staff deserve my praise for their dedication and continued efforts in（32）.....these excellent results".

The group has proposed A．final （33）.... of 9.4p per share， bringing the total to 13p for the year.

（19）应选查看材料

A.commitments

B.interests

C.responsibilities

D.benefits

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根据以下材料，回答题Sharks Perform. a Service for Earth"s WatersIt is hard to get people to