根据材料,回答题。 Sharks Perform. a Service for Earth"s Waters.It is hard to get people to - 试题答案网问答

第1题

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

根据以下材料，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 risk of disappearing from 54______

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 smell4. 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 62______ against 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

根据下面材料，回答题。 Exercise Lowers Employers&39; Health CostsCompanies can save millio

根据下面材料，回答题。

Exercise Lowers Employers&39; Health Costs

Companies can save millions in health-care costs simply by encouraging their employees to exercise a little bit, researchers reported on Friday.

They said obese (肥胖的) employees had higher health-care costs, but lowered those expenses by exercising just a couple of times a week, without even losing any weight.

Feifei Wang and colleagues at the University of Michigan studied 23,500 workers at General Motors.

They estimated that getting the most sedentary (惯于久坐的) obese workers to exercise would have saved about $790,000 a year, or about 1.5 percent of health-care costs for the whole group,Company-wide. The potential savings could reach $7.1 million per year, they reported in the Journal of Occupational and Environmental Medicine.

Of the whole group of workers, about 30 percent were of normal weight,45 percent were overweight (超重的), and 25 percent were obese. Annual health-care costs averaged $2,200 for normal weight, $2,400 for the overweight, and $2,700 for obese employees.

But among workers who did no exercise, health-care costs went up by at least $100 a year, and were $3,000 a year for obese employees who were sedentary.

But adding two or more days of light exercise, at least 20 minutes of exercise or workhard enough to increase heart rate and breathing, lowered costs by on average $500 per employee a year, the researchers found.

"This indicates that physical activity behavior. could reduce at least some of the harmful effects of excess body fat, and in consequence, help lower the health-care costs," Wang and colleagues wrote.

How can employees help lower the health-care costs？查看材料

A.By taking more rest

B.By eating less

C.By exercising a little bit

D.By saving more money

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第4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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第5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6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7题

根据下面材料，回答题。 The Drink Your Body Needs Most1 Our bodies are estimated to be abo

根据下面材料，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 8-ounce 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&39;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

点击查看答案

第8题

阅读材料，回答题。Man cannot go on increasing his number at the present rate. In the next 30

阅读材料，回答题。

Man cannot go on increasing his number at the present rate. In the next 30 years man will faca period of crisis. Some experts believe that there will be a widespread food___ 51 ____. Other experthink this is too pessimistic (悲观的), and that man can prevent things from___ 52 ____worse tha they are now. But remember that two thirds of the people in the world are under-nourished or stmving now.

One thing that man can do is to limit the___ 53 ____of babies born. The need for this is obvious but it is not easy to achieve. People have to be___ 54 ____to limit their families. In the countries of the population___ 55 ____, many people like big families. The parents think that this makes a bigger income for the family and ensures there will be someone in the family who will look___ 56 ____them in old age.

Several governments have___ 57 ____birth control policies in recent years. Among them are Japan, China, India and Egypt. In some cases the results have not been successful. Japan has been an___ 58____The Japanese adopted a birth control policy in 1921~3. People were___ 59 ____to limit their families. The birth rate fell from 34.3 per thousand per year to about 17.0 per year___ 60 ____ present.

________ 查看材料

A.Need

B.want

C.Absence

D.shortage

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第9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10题

请根据短文的内容，回答题。 Don"t Rely on Plankton to Save the PlanetEncouraging plankt

请根据短文的内容，回答题。

Don"t Rely on Plankton to Save the Planet

Encouraging plankton growth in the ocean has been touted by some as a promising way to remove carbon dioxide from the atmosphere. __________ (46)＜br＞

Adding iron to patches of ocean can make plankton bloom temporarily. The microscopic organisms suck up dissolved carbon dioxide from the water, which in turn is replaced by carbon dioxide from the air. __________ (47)＜br＞

Jorge Sarmiento from Princeton and his colleagues developed a complex computer model to analyze how factors such as ocean chemistry and water circulation would affect the process if 160,000square kilometers of ocean were seeded with iron for a month. __________ (48)＜br＞

In their scenario, which covers an area 10 times as big as the largest experiment of this kind ever proposed, fertilizing the ocean removes 1 million tons of carbon from the atmosphere -- just 0.2 per cent of the carbon dioxide humankind spews out each month.＜br＞

Rough estimates in the past have predicted similarly disappointing results. __________ (49) says Sallie Chisholm, an environmental engineer from the Massachusetts Institute of Technology.＜br＞

"But the take-home message is the same. __________ (50)"

第46题___________ 查看材料

A.Its opponents argue， however， that it will stop global warming.

B.Its opponents fear that it will damage the marine ecosystem， and now a computer model shows that the trick would also be remarkably inefficient.

C.As plankton die and settle on the ocean floor， their carbon is supposedly locked up in the seabed.

D.They found that 100 years later only between 2 and 11 per cent， of the extra carbon that was originally taken up by plankton had actually been removed from the atmosphere.

E."These are newer and better models."

F.Ocean fertilisation is not the answer to global warming.

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