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单选题
Once a lighthouse is built, no ship of any nationality can be effectively _____ from the utilization of the lighthouse for navigational purposes.
A
isolated
B
dismissed
C
distracted
D
excluded
参考答案
参考解析
解析：
句意：一旦灯塔建立起来，以航海为目的的任何国籍的船只都可以有效地加以利用。整个句子采用了双重否定形式来表示肯定的含义。excluded被排除在外的，符合句意。isolated被孤立，被隔离与from搭配，表示和其他事物隔离，不与之来往等意思，dismissed被某个组织或群体开除或解职，某组织、协会、机构被解散。distracted也可以和from搭配，表示“被转移，被分散”，但一般表示兴趣、注意力的分散。
句意：一旦灯塔建立起来，以航海为目的的任何国籍的船只都可以有效地加以利用。整个句子采用了双重否定形式来表示肯定的含义。excluded被排除在外的，符合句意。isolated被孤立，被隔离与from搭配，表示和其他事物隔离，不与之来往等意思，dismissed被某个组织或群体开除或解职，某组织、协会、机构被解散。distracted也可以和from搭配，表示“被转移，被分散”，但一般表示兴趣、注意力的分散。
更多 “单选题Once a lighthouse is built, no ship of any nationality can be effectively _____ from the utilization of the lighthouse for navigational purposes.A isolatedB dismissedC distractedD excluded” 相关考题
考题
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考题
When making landfall at night，the light from a powerful lighthouse may sometimes be seen before the lantern breaks the horizon．This light is called the ______．A.diffusionB.backscatterC.loomD.elevation
考题
共用题干
The first navigational lights in the New World were probably lighthouses hung at harbor en-trances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brew-ster Island at the entrance to Boston Harbor. Paid for and maintained by“light dues”levied（征收）on ships,the original beacon was blown up in 1776 .Until then there were only a dozen or so true lighthouses in the colonies.Little over a century later,there were 700 lighthouses.The first eight lighthouses erected on the West Coast in the 1850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal.Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers theremassive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earliest keepers came from every walk of life,they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouse was taken over in 1 852 by the United States LighthouseBoard,and agency of the Treasury Department,the keeper corps gradually became highly professional. Which is the best title for the passage?A: The Lighthouse on Little Brewster Island.B: The Life of a Lighthouse Keeper.C: Early Lighthouses in the United States.D: The Modern Profession of Lighthouse-keeping.
考题
共用题干
The first navigational lights in the New World were probably lighthouses hung at harbor en-trances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brew-ster Island at the entrance to Boston Harbor. Paid for and maintained by“light dues”levied（征收）on ships,the original beacon was blown up in 1776 .Until then there were only a dozen or so true lighthouses in the colonies.Little over a century later,there were 700 lighthouses.The first eight lighthouses erected on the West Coast in the 1850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal.Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers theremassive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earliest keepers came from every walk of life,they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouse was taken over in 1 852 by the United States LighthouseBoard,and agency of the Treasury Department,the keeper corps gradually became highly professional.Why does the author mention the Massachusetts Bay Colony?A: It was the headquarters of the United States Lighthouse Board.B: Many of the tallest lighthouses were built there.C: The first lantern wicks were developed there.D: The first lighthouse in North America was built there.
考题
共用题干
The first navigational lights in the New World were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brewster Island at the entrance to Boston Harbor, Paid for and maintained by“light dues”levied（征 收）on ships,the original beacon was blown up in 1776.Until then there were only a dozen or so true lighthouses in the colonies.Little over a century later,there were 700 lighthouses.The first eight lighthouses erected on the West Coast in the 1850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal.Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers theremassive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earliest keepers came from every walk of life, they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouse was taken over in 1852 by the United States Lighthouse Board,and agency of the Treasury Department,the keeper corps gradually became highly professional. Why does the author mention the Massachusetts Bay Colony?A: It was the headquarters of the United States Lighthouse Board.B: Many of the tallest lighthouses were built there.C: The first lantern wicks were developed there.D: The first lighthouse in North America was built there.
考题
共用题干
The first navigational lights in the New World were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brewster Island at the entrance to Boston Harbor, Paid for and maintained by“light dues”levied（征 收）on ships,the original beacon was blown up in 1776.Until then there were only a dozen or so true lighthouses in the colonies.Little over a century later,there were 700 lighthouses.The first eight lighthouses erected on the West Coast in the 1850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal.Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers theremassive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earliest keepers came from every walk of life, they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouse was taken over in 1852 by the United States Lighthouse Board,and agency of the Treasury Department,the keeper corps gradually became highly professional. It can be inferred from the passage that lighthouses in the Northeast did NOT need high towers because______.A: ships there had high mastsB: coastal waters were safeC: the coast was straight and unobstructedD: the lighthouses were built on high places
考题
共用题干
The first navigational lights in the New World were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brewster Island at the entrance to Boston Harbor, Paid for and maintained by“light dues”levied（征 收）on ships,the original beacon was blown up in 1776.Until then there were only a dozen or so true lighthouses in the colonies.Little over a century later,there were 700 lighthouses.The first eight lighthouses erected on the West Coast in the 1850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal.Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers theremassive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earliest keepers came from every walk of life, they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouse was taken over in 1852 by the United States Lighthouse Board,and agency of the Treasury Department,the keeper corps gradually became highly professional. Which is the best title for the passage?A: The Lighthouse on Little Brewster Island.B: The Life of a Lighthouse Keeper.C: Early Lighthouses in the United States.D: The Modern Profession of Lighthouse-keeping.
考题
共用题干
The first navigational lights in the New World were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brewster Island at the entrance to Boston Harbor, Paid for and maintained by“light dues”levied（征 收）on ships,the original beacon was blown up in 1776.Until then there were only a dozen or so true lighthouses in the colonies.Little over a century later,there were 700 lighthouses.The first eight lighthouses erected on the West Coast in the 1850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal.Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers theremassive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earliest keepers came from every walk of life, they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouse was taken over in 1852 by the United States Lighthouse Board,and agency of the Treasury Department,the keeper corps gradually became highly professional. According to the passage,where can the tallest brick lighthouse in the United States be found?A: Little Brewster Island.B: The Florida Keys.C: Cape Hatteras.D: Cape Cod.
考题
Public goods are those commodities from whose enjoyment nobody can be effectively excluded.Everybody is free to enjoy the benefits of these commodities,and one person′s utilization 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?goods.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 tree 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 public goods.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.
Which of the following would NOT be an example of public goods as described in the passage?A.A taxi.
B.A bridge.
C.A fire truck.
D.A stoplight.
考题
Public goods are those commodities from whose enjoyment nobody can be effectively excluded.Everybody is free to enjoy the benefits of these commodities,and one person′s utilization 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?goods.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 tree 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 public goods.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.
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.
考题
共用题干
第二篇The First Navigational LightsIn the New World,navigational lights were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on little Brewster Island at the entrance to Boston Harbor. Paid for and maintained by"light dues"levied on ships,the original beacon was blown up in 1776.By then there were only a dozen of so true lighthouses in the colonies. Little over a century later,there were 700 lighthouses.The first lighthouses erected on the west coast in the 1850's featured the same basic new England design:a Cape Cod dwelling with the tower rising from the center or standing close by.In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were built on rocky eminences,enormous towers were not the rule.Some were made of stone and brick,others of wood or metal. Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south from Maryland through the Florida Keys,the coast was low and sandy. It was often necessary to build tall towers there一massive structures like the majestic Cape Hatteras,North Carolina lighthouse,which was lit in 1870.At 190 feet,it is the tallest brick lighthouse in the country.Notwithstanding differences in appearance and construction,most American lighthouses shared several features:a light,living quarters and sometimes a bell(or,later,a foghorn).They also had something else in common. A keeper and usually,the keeper's family.The keeper' s essential task was trimming the lantern wick in order to maintain a steady,bright flame.The earliest keepers came from every walk of life;they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouses was taken over in 1 852 by the United states Lighthouse Board,an agency of the Treasury Department,the keeper gradually became highly professional.Why does the author mention the Massachusetts Bay Colony?A:The first lantern wicks were developed there.B:It was the headquarters of the United States Lighthouse Board.C:Many of the tallest lighthouses were built there.D:The first lighthouse in North America was built there.
考题
共用题干
The first navigational lights in the New World were probably lanterns hung at harbor en-trances .The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brewster Island at the entrance to Boston Harbor. Paid for and maintained by“light dues”levied（征收）on ships,the original beacon was blown up in 1776.Until then there were only a dozen or so true lighthouses in the colonies .Little over a century later,there were 700 lighthouses.The first eight lighthouses erected on the West Coast in the l850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal. Some stood onpilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers there—massive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earli-est keepers came from every walk of life,they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums. After the administration of lighthouse was taken over in 1852 by the United States Lighthouse Board,and agency of the Treasury Department,the keeper corps gradually became highly profes- sional. Which is the best title for the passage?A: The Lighthouse on Little Brewster Island.B: The Life of a Lighthouse Keeper.C:.Early Lighthouses in the United States.D: The Modern Profession of Lighthouse-keeping.
考题
共用题干
第二篇The First Navigational LightsIn the New World,navigational lights were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on little Brewster Island at the entrance to Boston Harbor. Paid for and maintained by"light dues"levied on ships,the original beacon was blown up in 1776.By then there were only a dozen of so true lighthouses in the colonies. Little over a century later,there were 700 lighthouses.The first lighthouses erected on the west coast in the 1850's featured the same basic new England design:a Cape Cod dwelling with the tower rising from the center or standing close by.In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were built on rocky eminences,enormous towers were not the rule.Some were made of stone and brick,others of wood or metal. Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south from Maryland through the Florida Keys,the coast was low and sandy. It was often necessary to build tall towers there一massive structures like the majestic Cape Hatteras,North Carolina lighthouse,which was lit in 1870.At 190 feet,it is the tallest brick lighthouse in the country.Notwithstanding differences in appearance and construction,most American lighthouses shared several features:a light,living quarters and sometimes a bell(or,later,a foghorn).They also had something else in common. A keeper and usually,the keeper's family.The keeper' s essential task was trimming the lantern wick in order to maintain a steady,bright flame.The earliest keepers came from every walk of life;they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouses was taken over in 1 852 by the United states Lighthouse Board,an agency of the Treasury Department,the keeper gradually became highly professional.According to the passage,where can the tallest brick lighthouse in the United States be found?A:The Florida Keys B:Cape CodC:Cape Hatteras D:Little Brewster Island.
考题
共用题干
第二篇The First Navigational LightsIn the New World,navigational lights were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on little Brewster Island at the entrance to Boston Harbor. Paid for and maintained by"light dues"levied on ships,the original beacon was blown up in 1776.By then there were only a dozen of so true lighthouses in the colonies. Little over a century later,there were 700 lighthouses.The first lighthouses erected on the west coast in the 1850's featured the same basic new England design:a Cape Cod dwelling with the tower rising from the center or standing close by.In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were built on rocky eminences,enormous towers were not the rule.Some were made of stone and brick,others of wood or metal. Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south from Maryland through the Florida Keys,the coast was low and sandy. It was often necessary to build tall towers there一massive structures like the majestic Cape Hatteras,North Carolina lighthouse,which was lit in 1870.At 190 feet,it is the tallest brick lighthouse in the country.Notwithstanding differences in appearance and construction,most American lighthouses shared several features:a light,living quarters and sometimes a bell(or,later,a foghorn).They also had something else in common. A keeper and usually,the keeper's family.The keeper' s essential task was trimming the lantern wick in order to maintain a steady,bright flame.The earliest keepers came from every walk of life;they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouses was taken over in 1 852 by the United states Lighthouse Board,an agency of the Treasury Department,the keeper gradually became highly professional.What is the best title for this passage?A: The Life of a lighthouse Keeper.B:The Modern Profession of lighthouse Keeping.C:Early Lighthouse in the Unites States.D: The Lighthouse on Little Brewster Island.
考题
共用题干
The first navigational lights in the New World were probably lanterns hung at harbor en-trances .The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brewster Island at the entrance to Boston Harbor. Paid for and maintained by“light dues”levied（征收）on ships,the original beacon was blown up in 1776.Until then there were only a dozen or so true lighthouses in the colonies .Little over a century later,there were 700 lighthouses.The first eight lighthouses erected on the West Coast in the l850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal. Some stood onpilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers there—massive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earli-est keepers came from every walk of life,they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums. After the administration of lighthouse was taken over in 1852 by the United States Lighthouse Board,and agency of the Treasury Department,the keeper corps gradually became highly profes- sional.It can be inferred from the passage that lighthouses in the Northeast did NOT need high tow-ers because______.A: ships there had high mastsB: coastal waters were safeC: the coast was straight and unobstructedD: the lighthouses were built on high places
考题
共用题干
第二篇The First Navigational LightsIn the New World,navigational lights were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on little Brewster Island at the entrance to Boston Harbor. Paid for and maintained by"light dues"levied on ships,the original beacon was blown up in 1776.By then there were only a dozen of so true lighthouses in the colonies. Little over a century later,there were 700 lighthouses.The first lighthouses erected on the west coast in the 1850's featured the same basic new England design:a Cape Cod dwelling with the tower rising from the center or standing close by.In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.Since most stations in the Northeast were built on rocky eminences,enormous towers were not the rule.Some were made of stone and brick,others of wood or metal. Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south from Maryland through the Florida Keys,the coast was low and sandy. It was often necessary to build tall towers there一massive structures like the majestic Cape Hatteras,North Carolina lighthouse,which was lit in 1870.At 190 feet,it is the tallest brick lighthouse in the country.Notwithstanding differences in appearance and construction,most American lighthouses shared several features:a light,living quarters and sometimes a bell(or,later,a foghorn).They also had something else in common. A keeper and usually,the keeper's family.The keeper' s essential task was trimming the lantern wick in order to maintain a steady,bright flame.The earliest keepers came from every walk of life;they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.After the administration of lighthouses was taken over in 1 852 by the United states Lighthouse Board,an agency of the Treasury Department,the keeper gradually became highly professional.We can know from the passage that the coast of North Carolina is______.A:rocky eminences B:high and flatC:low and sandy D:high and sandy
考题
问答题Passage 2 Public goods are those commodities from whose enjoyment nobody can be 1 excluded. Everybody is free to 2 the benefits of these commodities, and one person’s utilization 3 the possibilities of 4 enjoying 5 . Examples of public goods are not 6 one might expect. A flood control dam is public goods. Once the dam is built, 7 living in the area will benefit 8 their own contribution 9 the construction cost of the dam. The same 10 true for highway signs or aids to navigations. Once a 1ighthouse is built, 11 _ ship of 12 nationality can be effectively excluded from the13the lighthouse for navigational purposes. National defense is another example. 14 a person who voted against military expenditures or 15 taxes 16 the protection afforded. It is no easy task to17the social costs and social benefits associated with a public good. There is 18 way of 19 drivers for 100 at highway signs, sailors for watching a lighthouse, and citizens for the security provided to them through national defense. 20 the market does not provide the necessary signals, economic analysis has to be substituted for the impersonal judgment of the market place.1. A. efficiently B. effectively C. effectually D. absolutely2. A. have B. enjoy C. concern D. contribute3. A. will reduce B. will enhance C. does not reduce D. does not exclude4. A. anybody’s B. somebody else’s C. anybody else’s D. whoever5. A. the benefit goods B. the peculiar goods C. the same goods D. his goods6. A. as same as B. as rare as C. as far as D. as good as7. A. some people B. the native people C. all the people D. the common people8. A. regarding B. irrespective of C. by virtue of D. considering9. A. for B. on C. towards D. to10. A. holds B. has C. grasps D. carries11. A. any B. a C. the D. no12. A. any B. a C. some D. no13. A. enjoying B. sharing C. catching sight of D. utilization of14. A. If B. When C. Once D. Even15. A. has paid B. has not paid C. paid D. did not pay16. A. could benefit from B. will benefit from C. couldn’t benefit from D. won’t benefit from17. A. calculate B. collect C. determine D. investigate18. A. an advisable B. a practicable C. no advisable D. no practicable19. A. charging B. estimating C. calculating D. controlling20. A. Because B. Even C. However D. Surprisingly
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单选题Once a lighthouse is built, no ship of any nationality can be effectively _____ from the utilization of the lighthouse for navigational purposes.A
isolatedB
dismissedC
distractedD
excluded
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单选题A lighthouse can be identified by its（）.A
painted colorB
light color and phase characteristicC
type of structureD
All of the above
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单选题Your（）is 175°from the lighthouse.A
bearingB
positionC
locationD
place
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