Public goods are those products from whose enjoyment nobody can be effectively excluded. Everybody is free to enjoy the benefits of these commodities, and one person’s utilization(利用)does not reduce the possibilities of anybody else’s enjoying the same go
题目
Public goods are those products from whose enjoyment nobody can be effectively excluded. Everybody is free to enjoy the benefits of these commodities, and one person’s utilization(利用)does not reduce the possibilities of anybody else’s enjoying the same good.Examples of public goods are not as rare as one might expect. A flood control dam is a public good. Once the dam is built, all persons living in the area will benefit--regardless of their own contribution to the construction cost of the dam. The same holds true for highway signs or aids to navigation. Once a lighthouse is built, no ship of any nationality can be effectively excluded from the utilization of the lighthouse for navigational purposes. National defense is another example. Even a person who voted against military expenditures or did not pay any taxes will benefit from the protection afforded.It is no easy task to determine the social costs and social benefits associated with a public good. There is no practicable way of charging drivers for looking at highway signs, sailors for watching a lighthouse, and citizens for the security provided to them through national defense.Because the market does not provide the necessary signals, economic analysis has to be substituted(代替) for the impersonal judgement of the marketplace.
31. With what topic is the passage mainly concerned?
A. Mechanisms for safer navigation.
B. The economic structure of the marketplace.
C. A specific group of commodities.
D.The advantage of lowering taxes.
32. Which of the following would NOT be an example of a public good as described in the passage?
A.taxi.
B. A bridge.
C. A fire truck.
D. A stoplight.
33. Which of the following can best replace the underlined word “holds”?
A. has
B. is
C. grasps
D. carries
34. According to the passage, finding out the social costs of a public good is a ________.
A. difficult procedure
B. daily duty
C. matter of personal judgement
D. citizen’s responsibility
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第1题：
When there is no indication of damage to the ______ , a bill of lading is said to be ______.
A．documents.., clear
B．goods.., clear
C．documents.., clean
D．goods.., clean
正确答案：D
解析：a bill of lading提单，提单是货物由运输公司到托运人的收据，也是准可议付单据(quasi negotiable document)。 -
第2题：
She rose from being a () to become a superstar.A、excellet
B、poor
C、somebody
D、nobody
参考答案：D
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第3题：
Our tradition ______ be different _____ yours.
A、can;with
B、must;with
C、need;as
D、may;from
正确答案:D
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第4题：
"Nope" is the another way to say()
A、no
B、nine
C、none
D、nobody
参考答案：A
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第5题：
Nobody ___ him since last week.A.Sees
B. has seen
C.saw
D. is seeing
正确答案：B
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第6题：
J. Foyt often takes part in minor-league races for__________.A.prize money
B.blood test
C.cheers from the crowd
D.enjoyment答案：C解析：此题定位在最后一段的结尾处，A．J．Foyt在三个不同时段给出了不同的答复“It，s inmy blood．”，“It is good practice．”，“Don’t ask dumb questions．"三者表达出的共同意思为enjoyment，所以D项符合题意。