Sharks have gained unfair reputation for being large fierce sea animals. That humanity’s unfounded fear and hatred of these ancient creatures are leading to a worldwide slaughter (大屠殺) may result in the extinction of many larger, coastal shark species. The shark is the victim of a warped (有偏見的) attitude of wildlife protection; we strive (努力) only to protect the beautiful, non-threatening parts of our environment. And, in our efforts to restore only non-threat parts of our earth, we ignore other important parts.

A perfect illustration of this attitude is the contrasting attitude towards another large sea animal, the dolphin. During the 1980s, environmentalists in the United States objected to the practice of hunting tuna (金槍魚) in the Pacific Ocean since these nets also caught dolphins. The environmentalists generated enough political and economic pressure to prevent tuna companies from buying tuna that had been caught in drift nets. In contrast to this effort, the populations of sharks in the Pacific Ocean have decreased to the point of extinction and there has been very little effort by the same environmentalism to save this important species of wildlife in water. Sharks are among the oldest creatures on earth, having survived in the seas for more than 350 million years. They are extremely efficient animals, feeding on wounded or dying animals, thus performing an important role in nature of knocking out the weaker animals in a species. Just the fact that species such as the Great White Shark have managed to live in the oceans for so many millions of years is enough proof of their efficiency and adaptability to changing environment. It is time for humans, who may not survive another 1,000 years at the rate they are damaging the planet, to cast away their fears and begin considering the protection of sharks as creatures that may provide us with an insight into our own survival.

The best summary of the passage is __________.

   A. sharks have such a bad reputation

   B. how sharks become some of the oldest creatures on earth

   C. sharks should be put under wildlife protection

   D. the campaign to save dolphins was not extended to save sharks

How long have sharks been living on the planet?

   A. More than 25 million years.

   B. More than 150 million years.

   C. More than 350 million years.

   D. More than 500 million years.

Which of the following best describes the organization of this passage?

   A. Specific(細(xì)節(jié)) to general.                B. Cause and effect.

   C. Statement and example.                  D. Time order.

How did environmentalists manage to protect dolphins?

   A. They prevented fishermen from selling them for meat.

   B. They pressured fishermen into protecting dolphins by law.

   C. They created shelters where dolphin fishing was not allowed.

   D. They brought political pressure against tuna companies.

【小題1】C【小題1】C【小題1】C【小題1】D


解析:

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科目：高中英語 來源：遼寧省寬甸縣2009-2010學(xué)年度高一下學(xué)期期末聯(lián)考試卷（英語） 題型：閱讀理解


Pretoria, South Africa – Hundreds of swimmers play in the water along a South Africa beach. Suddenly a huge shark appears off shore and heads for the bathers. Before it can get close to the swimmers, the shark, for some mysterious reason, starts swimming parallel to the beach. Then it turns away from the shore and heads out to sea, leaving the swimmers untouched.
Such a scene will soon become common along shark-in-fasted (鯊魚成群的) shores. An electrical engineer from the University of Pretoria has developed an electrical system that repels (擊退) sharks by controlling their movements. Confused by this action, the sharks end up turning away from the beach.
In this unusual shark-repellent method, an insulated (絕緣的) cable is buried on the bottom of the sea around a beach where people swim. When an electric current is sent through the cable, an electric field is produced in the water above the cable.
When shark swims into the electric field, nerve cells just below the shark' s skin will sense the field. The electricity produces a reflex (反射作用) action in the shark' s muscles, causing the dangerous animal to swim parallel to the cable. Confused by increasing loss of control of its muscles, the shark suddenly changes its direction and heads seaward, away from the electric field.
In a test of the invisible new shark-repellent system, a cable was placed around a beach in St. Lucia, an island around the beach a long time ago to keep sharks away from swimmers, and a net was left in place during the experiment.
When the electric field was left on for more than a year and a half, no sharks were found in the net. However, when the power was turned off,89 sharks ended up in the net.
Using the electric-wall method instead of net to protect bathers would avoid the needless death of many sharks, said biologists. Currently, thousands of sharks die each year when they become trapped in protective nets that surround holiday resorts in Africa and Australia.  About 10 to 15 humans are killed by sharks annually.
1．Why doesn' t the shark attack the swimmers according to the passage?
A．Because there are so many swimmers in the water.
B．Because the shark isn’t so hungry as to eat the swimmers.
C．Because of some mysterious power from the heaven.
D．Because there is an invisible electric field confusing the shark.
2．An electrical engineer from the University of Pretoria has developed __      .
A．a(chǎn) protective net   
B．a(chǎn) new shark-repellent system
C．the electric field        
D．a(chǎn)n insulated cable
3．An electric field is produced in the water above the cable         .
A．only when a shark swims into the electric field
B．only when an insulated cable is buried on the bottom of the sea around a beach where people swim
C．only when an electric current is sent through the cable
D．only when the sharks are trapped in protective nets
4．Which of the following is NOT TRUE according to the passage?
A．Protective nets had been fixed earlier than the new shark-repellent system.
B．The new shark – repellent system will probably replace the protective nets.
C．Thousands of sharks have died each year since this new system was put into use.
D．Using the electric-wall instead of nets would avoid the needless death of many sharks.

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Sharks have gained unfair reputation for being large fierce sea animals. That humanity’s unfounded fear and hatred of these ancient creatures are leading to a worldwide slaughter (大屠殺) may result in the extinction of many larger, coastal shark species. The shark is the victim of a warped (有偏見的) attitude of wildlife protection; we strive (努力) only to protect the beautiful, non-threatening parts of our environment. And, in our efforts to restore only non-threat parts of our earth, we ignore other important parts.
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【小題1】 The best summary of the passage is __________.

A．sharks have such a bad reputation
B．how sharks become some of the oldest creatures on earth
C．sharks should be put under wildlife protection
D．the campaign to save dolphins was not extended to save sharks
【小題2】 How long have sharks been living on the planet?
A．More than 25 million years.
B．More than 150 million years.
C．More than 350 million years.
D．More than 500 million years.
【小題3】Which of the following best describes the organization of this passage?
A．Specific(細(xì)節(jié)) to general.B．Cause and effect.
C．Statement and example.D．Time order.
【小題4】 How did environmentalists manage to protect dolphins?
A．They prevented fishermen from selling them for meat.
B．They pressured fishermen into protecting dolphins by law.
C．They created shelters where dolphin fishing was not allowed.
D．They brought political pressure against tuna companies.

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1. The best summary of the passage is __________.

   A. sharks have such a bad reputation

   B. how sharks become some of the oldest creatures on earth

   C. sharks should be put under wildlife protection

   D. the campaign to save dolphins was not extended to save sharks

2. How long have sharks been living on the planet?

   A. More than 25 million years.

   B. More than 150 million years.

   C. More than 350 million years.

   D. More than 500 million years.

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   A. Specific(細(xì)節(jié)) to general.                B. Cause and effect.

   C. Statement and example.                  D. Time order.

4. How did environmentalists manage to protect dolphins?

   A. They prevented fishermen from selling them for meat.

   B. They pressured fishermen into protecting dolphins by law.

   C. They created shelters where dolphin fishing was not allowed.

   D. They brought political pressure against tuna companies.

 

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