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[单选题]
Nobody but Lucy and Lily （)the secret now。
A. know
B. knows
C. to know
D. are going to know
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题目内容
（请给出正确答案）
A. know
B. knows
C. to know
D. are going to know
答案
更多“ Nobody but Lucy and Lily ()the secret now。”相关的问题
第2题
A.prohibited
B.allowed
C.stopped
D.promoted
第3题
_ on roofs and telegraph wires.These birds are swallows.They are __62__ together because, very soon, they will be flying __63__ to much warmer lands, where they will find __64__ the small flying insects on which they __65__.There are no such insects __66__ in Britain during the winter; it is __67__ cold for them.
The swallows settle, fly off, swoop, and __68__ again.this they do many times, for they are making short __69__ flights in order to be fit for the long journey __70__ them.
__71__ of these migrating birds leave Britain in the autumn.They fly __72__ for hundreds of miles __73__ they reach the warm lands of Africa.But not all the birds get there, for many of them perish in the stormy weather they meet with __74__.
In the spring of the following year they __75__ the long and tiring journey back to Britain.They return to the identical barn or tree in the __76__ district which they had left the __77__ autumn.How do these birds find their__78__ there and back over such vast distances？ Nobody knows exactly __79__, but it has something to do __80__ winds and air currents.
61.a.being perched b.perched c.being perching d.be perched
62.a.gathering b.assembling c.waiting d.forming
63.a.to south b.the south c.to southwards d.south
64.a.a great number of b.a great deal of c.plenty of d.numerous
65.a.feed b.are fed c.eat d.rely
66.a.near b.about c.nearby d.over
67.a.too b.a bit c.very d.much
68.a.fly off b.swoop c.settle d.turn back
69.a.practical b.practicing c.practice d.practiced
70.a.in advance b.ahead of c.in front of d.in front
71.a.Swarms b.Herds c.Flocks d.Schools
72.a.firmly b.stoutly c.harshly d.steadily
73.a.until b.before c.when d.as
74.a.in the way b.on the way c.half the way d.all the way
75.a.take b.fly c.find d.make
76.a.old b.original c.familiar d.identical
77.a.before b.previous c.above going d.former
78.a.way b.path c.course d.route
79.a.why b.when c.how d.what
80.a.against b.away c.for d.with
第4题
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------irrespective 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 for the impersonal judgement of the marketplace.
1.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.
2.Which of the following marks the feature of public goods？
A.Each citizen has a share of the ownership of the commodity.
B.No one is excluded from the benefits of the goods.
C.People can enjoy the utilization of them if they contribute to it.
D.The use of them is determined by how much one pay.
3.According to the passage, finding out the social costs of a public good is a （）.
A.difficult procedure
B.daily administrative duty
C.matter of personal judgement
D.citizen's responsibility
4.To find out the market for public goods, people need to （）.
A.watch out for the necessary market signals
B.invent a practicable way of charging users
C.make impersonal judgement of the marketplace
D.do economic analysis of their costs and benefits
5.Which of the following statements best describes the organization of the first two paragraphs？
A.Suggestions for the application of an economic concept are offered.
B.Several generalizations are presented from which various conclusions are drawn.
C.Persuasive language is used to argue against a popular idea.
D.A general concept is defined and then examples are given.
第5题
The immediate problem is poverty. Most of Africa is urbanising at a lower level of income than other regions of the world did. That means there's little money around for investment that would make cities liveable and more productive. Without upgrades and new capacity, bridges, roads and power systems are unable to cope with expanding populations. With the exception of South Africa, the only light rail metro system in sub-Saharan Africa is in Addis Ababa, Ethiopia. Traffic jam leads to expense and unpredictability, things that keep investors away.
In other parts of the world, increasing agricultural productivity and industrialisation went together. More productive farmers meant there was a surplus that could feed cities; in turn, that created a pool of labour for factories. But African cities are different. They are too often built around consuming natural resources. Government is concentrated in capitals, so is the money. Most urban Africans work for a small minority of the rich, who tend to be involved in either cronyish (有裙带关系的) businesses or politics. Since African agriculture is still broadly unproductive, food is imported, consuming a portion of revenue.
So what can be done？ Though African countries are poor, not all African cities are. In Lagos, foreign oil workers can pay as much as 65,000 dollars per year in rent for a modest apartment in a safe part of town. If that income were better taxed, it might provide the revenue for better infrastructure. If city leaders were more accountable to their residents, they might favour projects designed to help them more. Yet even as new roads are built, new people arrive. When a city's population grows by 5% a year, it is difficult to keep up.
76.What do we learn from the passage about cities in sub-Saharan Africa____
A.They have more slums than other cities in the world.
B.They are growing fast without becoming richer.
C.They are as modernised as many cities elsewhere.
D.They attract migrants who want to be better off.
77.What does the author imply about urbanisation in other parts of the world____
A.It benefited from the contribution of immigrants.
B.It started when people's income was relatively high.
C.It benefited from the accelerated rise in productivity.
D.It started with the improvement of peopled livelihood.
78.Why is sub-Saharan Africa unappealing to investors____
A.It lacks adequate transport facilities.
B.The living expenses there are too high.
C.It is on the whole too densely populated.
D.The local governments are corrupted.
79.In what way does the author say African cities are different____
A.They have attracted huge numbers of farm labourers.
B.They still rely heavily on agricultural productivity.
C.They have developed at the expense of nature.
D.They depend far more on foreign investment.
80.What might be a solution to the problems facing African cities____
A.Lowering of apartment rent.
B.Better education for residents.
C.More rational overall planning.
D.A more responsible government.
