根据网考网考试中心的统计分析，在2015-6-18日职称英语C级习题练习中，以下试题答错率最高：
第1题：
【单选题】
A Dolphin and an Astronomer
One day in 1963, a dolphin named Elvar and afamous astronomer, Carl Sagan, were playing a little game. The astronomer wasvisiting an institute which was looking into the way dolphins communicate witheach other. Sagan was standing on the edge of one of the tanks where several ofthese friendly, highly intelligent creatures were kept. Elvar had just swum upalongside him and had turned on his back.
The dolphin wanted Sagan to scratch his stomachagain, as the astronomer had done twice before. Elvar looked up at Sagan,waiting. Then, after a minute or so, the dolphin leapt up through the water andmade a sound just like the word "more". The astonished astronomerwent to the director of the institute and told him about the incident."Oh, yes. That's one of the words he knows," the director said,showing no surprise at all.
Dolphins have bigger brains in proportion totheir body size than humans have, and it has been known for a long time thatthey can make a number of sounds. What is more, these sounds seem to havedifferent functions, such as warning each other of danger. Sound travels muchfaster and much further in water than it does in air. That is why the parts ofthe brain that deal with sound are much better developed in dolphins than inhumans. But can it be said that dolphins have a 'language', in the real senseof the word? Scientists don't agree on this.
A language is not just a collection of sounds,or even words. A language has a structure and what we call a grammar. Thestructure and grammar of a language help to give it meaning. For example, thetwo questions 'Who loves Mary?' and 'Who does Mary love?' mean very differentthings. If you stop to think about it, you will see that this differencedoesn't come from the words in the question but from the difference instructure. That is why the question 'Can dolphins speak?' can't be answereduntil we find out if dolphins not only make sounds but also arrange them in agrammatical order which affects their meaning.
1 The astronomer was not interested in the waydolphins communicate with each other.
A Right
B Wrong
C Not mentioned
2 The dolphin leapt up into the air becauseSagan was too near the water.
A Right
B Wrong
C Not mentioned
3 Parts of the dolphin's brain are particularlywell developed to handle different kinds of sound.
A Right
B Wrong
C Not mentioned
4 Dolphins are the most useful animals tohumans.
A Right
B Wrong
C Not mentioned
5 Dolphins travel faster in water than anyother animals.
A Right
B Wrong
C Not mentioned
6 Some scientists believe that dolphins have alanguage of their own.
A Right
B Wrong
C Not mentioned
7 Sounds can be called a language only whenthey have a structure and a grammar.
A Right
B Wrong
C Not mentioned
网考网参考答案：B、B、A、C、C、A、A，答错率：94%
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第2题：
【单选题】
She bumped in to her boyfriend in town this morning.
A. walked
B. came
C. fled
D. ran
网考网参考答案：D，答错率：78%
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第3题：
【单选题】Sometimes it is advisable to book hotels in advance.
A possible
B profitable
C wise
D easy
网考网参考答案：C，答错率：58%
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第4题：
【单选题】
The sea turtle's natural habitat has been considerably reduced.
A greatly
B suddenly
C generally
D slightly
网考网参考答案：C，答错率：73%
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第5题：
【单选题】
There is always excitement at the Olympic Games when an athlete breaks a record
A beats
B maintains
C matches
D tries
网考网参考答案：A，答错率：80%
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第6题：
【单选题】In the latter case the outcome can be serious indeed.
A.result
B.judgment
C.decision
D.event
网考网参考答案：A，答错率：77%
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第7题：
【单选题】Up to now, the work has been easy.
A.So
B.So long
C.So that
D.So far
网考网参考答案：D，答错率：81%
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第8题：
【单选题】
The Story of Lani
Five-year-old Lani still takes seven medicineswith her breakfast every morning。“She’s very good about it ”says her fatherDavid.Lani is alive today because of her father David，inmore than one way;when she was one year old she received part of her father’s liver in a liver—transplant operation.Laniwas born with a liver illness . __________ (46) Doctors advised that atransplant was the only way in which she would live.
The operation lasted 12 hours and needed twoteams，one for the father and one for thedaughter__________ (47)In these cases，the donor’s liver grows to normal size in about eight weeks。and t11e child’s liver becomes smaller.
Lani spent three weeks in hospital after theoperation.Because the receiver’s body tries to rejectthe new organ，the patient has to be given special drugs__________ (48)
Although David left hospital after 10 days，he didn’t return to work until after threemonths.In order to reach the liver, the doctors have to cut through the stomachwall，which is strong and full of muscle.It thereforetakes a long time to recover after this operation. __________ (49)So far，only 16 of these liver—transplant operationshave been carried out in Britain. __________ (50)Doctors say,“If possible，we prefer to take a liver from adead don not, usually a parent.”
Lani still has to look after her health，and she gets more tired than other children of the same age，but doctors hope that she will continue to get stronger andstronger.
A She had one operation when she was six weeksold，which was not successful.
B While these drugs are given，it is important that the patient does not catch any illness，not even a cold.
C In this operation a piece of liver, weighingabout 250--300 grams，was removed from the father andtransplanted into the daughter.
D David quickly recovered from the operation.
E However, they are more common in NorthAmerica and Japan.
F David was finally able to ride his bike againafter about a year
网考网参考答案：A、C、B、F、E，答错率：83%
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第9题：
【单选题】
He was rather vague about the reasons why he never finished school．
A．bright
B．unclear
C．general
D．bad
网考网参考答案：B，答错率：73%
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第10题：
【单选题】
No one knows for sure why Mr. Gilson has lung cancer.Nevertheless,doctors believe that secondhand smoke may cause lung cancer in people who do not smoke because nonsmokers often breathe in the smoke. from other people‘s cigarettes.__________ （47）The US Environmental Protection Agency reports that about 53,000 people die in the United States each year as a result of exposure to secondhand smoke.
The smoke that comes from a lit cigarette contains many different poisonous chemicals.In the past.scientists did not也ink that these chemicals could harm a nonsmoker‘s health. __________ （48）They discovered that even nonsmokers had unhealthy amounts of these toxic（有毒的）chemicals in their bodies.As a matter of fact,almost all of US breathe tobacco smoke at times,whether we realize it or not.For example,we cannot avoid secondhand smoke in restaurants,hotels and other public places.Even though many public places have nonsmoking areas,smoke flows in from the areas where smoking is permitted.It iS even harder for children to avoid secondhand smoke.__________ （49）Research shows that children who are exposed to secondhand smoke are sick more often than children who live in homes where no one smokes and that the children of smokers are more than twice as likely to develop lung cancer when they are adults as are children of nonsmokers.The risk is even higher for children who live in homes where both parents smoke
People are becoming very aware of the dangers of secondhand smoke. __________ （50）
A Recently,though,scientists changed their opinion after they studied a large group of nonsmokers.
B The Gilsons have been married for 35 years.
C 111is smoke is called secondhand smoke.
D However, secondhand smoke is dangerous to all people,old or young.
E As a result,they have passed laws which prohibit people from smoking in many public places. .
F In the United States,nine million children under the age of five live in homes with at least one smoker.
网考网参考答案：B、C、A、F、E，答错率：84%
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