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The erosion of the white cliffs in the south of England ____

题目
单选题
The erosion of the white cliffs in the south of England _____.
A

will soon become a problem for people living in central England

B

has now become a threat to the local residents

C

is quickly changing the map of England

D

can be stopped if proper measures are taken

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相似问题和答案

第1题：

Which of the following is the correct pin out for T568B?()

A. Orange/white, orange, green/white, blue, blue/white, green, brown/white, brown

B. Blue, blue/white, orange/white, orange, brown/white, brown, green/white, green

C. Green/white, green, orange/white, blue, blue/white, orange, brown/white, brown

D. Orange/white, orange, brown/white, brown, green/white, green, blue, blue/white


参考答案：A

第2题：

A cardinal mark showing an uninterrupted quick-flashing white light indicates the deepest water in the area is on the ______.

A.north side of the mark

B.west side of the mark

C.east side of the mark

D.south side of the mark


正确答案：A
当方位标显示不间断的快闪白灯，表示该区域的最深处在标志的北面。

第3题：

( )is a kind of very dry white wine produced in South-west France.

A. Bordeaux

B. Chablis

C. Chianti

D. Lambrusco


正确答案：A

第4题：

Text 2 When people talk about a"north-south divide"in Britain they are usually referring to house prices,employment and the ratio of private-sector to public-sector jobs.The south scores higher on all such measures.But new data from the British Trust for Ornithology（BTO）,a research charity,hints at the growth of another north-south divide-this time to the north's benefit.Every 20 years the BTO produces a superbly detailed atlas of bird life in Britain and Ireland.The 2007 t0 2011 edition is cheery:more species are tallied than in previous atlases,and many birds are increasing in number.Compared with two decades ago,45%of regular native species are ranging more widely while 32%are living in smaller areas;the rest have stayed put.But the most striking news comes from the north.The overall populations of woodland,farmland and migrant perching birds are up in northern England and Scotland but down in the south.The same is true of individual species such as the garden warbler,bullfinch and swallow.The number of cuckoos,a closely-watched species,declined by 63%in England between 1995 and 2010 but by only 5%in Scotland.Raptors are faring especially well in the south,but their numbers are rising in most parts of Britain.Partly this reflects climate change,suggests Simon Gillings of the BTO.Some birds are drawn to warmer winters in Scotland and northem England;visiting migrants may stick around for longer.Hard though it may be to believe during a week of torrential rain,the south is becoming drier,pushing snipe northward.More efficient farming has squeezed some farmland species.Some birds find it harder to make homes in the south,too.Pressure on housing means dilapidated buildings and barns,handy for nesting,have been converted into human dwellings.Between 2006 and 2012 the number of vacant dwellings fell by 17%in London and by 12%in Kent.Over the same period the number of empty houses increased by 16%in Derbyshire and by 10%in Lancashire:Northern mining villages once full of workers are now sparsely populated,points out Ian Bartlett,a birdwatcher in Hartlepool,in north-east England.They have become hot spots for birds and the people who watch them.Culrural difference also plays a part,thinks Mark Cocker,an expert on birds.The"obsession with tidiness"is stronger in the south,he says.Fewer people cultivate gardens;they prefer to cover them in decking and remove weeds from between concrete slabs.Village greens are mowed short.In contrast,Scotland and northern England have more trees,grassland and wind-swept moors.Less popular with humans,rugged parts of the countryside are filling up with a winged population instead.
According to the text,more species are found in the north Britain,because____

A.climate change plays a major role
B.some birds enjoy making home in the forest
C.there is little space for birds in the south
D.many distinctive birds are killed in the south

答案：C
解析：
事实细节题。根据定位词定位到文章第三段，通读第三段之后发现，整个段落都是在说北方鸟的种类多，而提到原因是在第四至六段，第五段首句提到Some birds find it harder to make homes in the south，too．（另外，鸟类在南部栖息变得更难了。）而与这个信息相对应的为C项there is little space for birds in the south“英国南部鸟类栖息空间较小”，故C项为正确选项。【干扰排除】A项为最大干扰项，但是文中是说部分原因是天气，但不是最主要的原因，因此应当排除：B项和D项在段落中没有提及，因此排除。

第5题：

Text 2 When people talk about a"north-south divide"in Britain they are usually referring to house prices,employment and the ratio of private-sector to public-sector jobs.The south scores higher on all such measures.But new data from the British Trust for Ornithology（BTO）,a research charity,hints at the growth of another north-south divide-this time to the north's benefit.Every 20 years the BTO produces a superbly detailed atlas of bird life in Britain and Ireland.The 2007 t0 2011 edition is cheery:more species are tallied than in previous atlases,and many birds are increasing in number.Compared with two decades ago,45%of regular native species are ranging more widely while 32%are living in smaller areas;the rest have stayed put.But the most striking news comes from the north.The overall populations of woodland,farmland and migrant perching birds are up in northern England and Scotland but down in the south.The same is true of individual species such as the garden warbler,bullfinch and swallow.The number of cuckoos,a closely-watched species,declined by 63%in England between 1995 and 2010 but by only 5%in Scotland.Raptors are faring especially well in the south,but their numbers are rising in most parts of Britain.Partly this reflects climate change,suggests Simon Gillings of the BTO.Some birds are drawn to warmer winters in Scotland and northem England;visiting migrants may stick around for longer.Hard though it may be to believe during a week of torrential rain,the south is becoming drier,pushing snipe northward.More efficient farming has squeezed some farmland species.Some birds find it harder to make homes in the south,too.Pressure on housing means dilapidated buildings and barns,handy for nesting,have been converted into human dwellings.Between 2006 and 2012 the number of vacant dwellings fell by 17%in London and by 12%in Kent.Over the same period the number of empty houses increased by 16%in Derbyshire and by 10%in Lancashire:Northern mining villages once full of workers are now sparsely populated,points out Ian Bartlett,a birdwatcher in Hartlepool,in north-east England.They have become hot spots for birds and the people who watch them.Culrural difference also plays a part,thinks Mark Cocker,an expert on birds.The"obsession with tidiness"is stronger in the south,he says.Fewer people cultivate gardens;they prefer to cover them in decking and remove weeds from between concrete slabs.Village greens are mowed short.In contrast,Scotland and northern England have more trees,grassland and wind-swept moors.Less popular with humans,rugged parts of the countryside are filling up with a winged population instead.
According to the passage,what is"north-south divide"recently?

A.Home prices.
B.Job hunting.
C.Species richness.
D.Benefit plan.

答案：C
解析：
事实细节题。根据题干关键词对应文章前两段，题目问的是新的南北分歧，在第一段的结尾处提到了新分歧的信息即：But new data from the British Trust for Ornithology（BTO），a research charity,hints at the growth of another north-south dividc-this time to the north's benefit．[但慈善研究机构英国鸟类研究信托公司（BTO）提供的新数据表明，英国又出现了新的南北分歧问题，而这一次却对英国北部有益。]由此可见，选项中出现了鸟类的相关信息可以作为备选项，刚好C项Species richness（物种丰富度）体现了原文的意思，故C项为正确选项。【干扰排除】A、B、D项在第一段都有体现，但这些信息都是之前的南北差异的体现，而不是最近的，因此应当排除。

第6题：

材料：

Spark erosion is caused by a voltage discharge between the main bearing and journal surface. The cause of the potential is the development of a galvanic element between the ship’s hull, sea water, and the propeller shaft/crankshaft.

The oil film acts as a dielectric. The puncture voltage in the bearing depends on the thickness of the oil film. With increasing engine ratings, the specific load in the main bearing is increased. his will reduce the oil film thickness, and enable the discharge to take place at a lower voltage level.

Since the hydrodynamic oil film thickness varies through a rotation cycle, the discharge will take place at roughly the same instant during each rotation cycle, i.e. when the film thickness is at its minimum. The roughening will accordingly be concentrated in certain areas on the journal surface. In the early stages, the roughened areas can resemble pitting erosion. but later, as the roughness increases, the small craters will scrape off and pick up white metal-hence the silvery white appearance.

Therefore, to ensure protection against spark erosion, the potential level must be kept at maximum 80 mV, which is feasible today with a high efficiency earthing device. If an earthing device is installed, its effectiveness must be checked regularly. Spark erosion is only observed in main bearings and main bearing journals.

问题：

According to the paragraph one, a voltage between the main bearing and journal surface is produced by______.

A.propeller rotation

B.leakage from M/E electric control unit

C.a galvanic element

D.friction between the main bearing and journal surface

______engine ratings increase, the hydrodynamic oil film between the main bearing and journal surface is______.A.The lower/thinner

B.The higher/the thicker

C.The lower/thicker

D.The higher/thinner

When will the spark erosion take place on the journal surface during each rotation cycle?A.when the film thickness is at its minimum

B.when the film thickness is at its maximum

C.when the engine is on its compression stroke

D.when the engine is on its exhaust stroke

During the engine room watch keeping, which equipment must be noted to ensure protection against spark erosion?A.the antifouling plant

B.the earthing device

C.the main engine electric heating coils

D.the shaft generator

请帮忙给出每个问题的正确答案和分析，谢谢！


问题 1 答案解析：C


问题 2 答案解析：D


问题 3 答案解析：A


问题 4 答案解析：B

第7题：

Text 2 When people talk about a"north-south divide"in Britain they are usually referring to house prices,employment and the ratio of private-sector to public-sector jobs.The south scores higher on all such measures.But new data from the British Trust for Ornithology（BTO）,a research charity,hints at the growth of another north-south divide-this time to the north's benefit.Every 20 years the BTO produces a superbly detailed atlas of bird life in Britain and Ireland.The 2007 t0 2011 edition is cheery:more species are tallied than in previous atlases,and many birds are increasing in number.Compared with two decades ago,45%of regular native species are ranging more widely while 32%are living in smaller areas;the rest have stayed put.But the most striking news comes from the north.The overall populations of woodland,farmland and migrant perching birds are up in northern England and Scotland but down in the south.The same is true of individual species such as the garden warbler,bullfinch and swallow.The number of cuckoos,a closely-watched species,declined by 63%in England between 1995 and 2010 but by only 5%in Scotland.Raptors are faring especially well in the south,but their numbers are rising in most parts of Britain.Partly this reflects climate change,suggests Simon Gillings of the BTO.Some birds are drawn to warmer winters in Scotland and northem England;visiting migrants may stick around for longer.Hard though it may be to believe during a week of torrential rain,the south is becoming drier,pushing snipe northward.More efficient farming has squeezed some farmland species.Some birds find it harder to make homes in the south,too.Pressure on housing means dilapidated buildings and barns,handy for nesting,have been converted into human dwellings.Between 2006 and 2012 the number of vacant dwellings fell by 17%in London and by 12%in Kent.Over the same period the number of empty houses increased by 16%in Derbyshire and by 10%in Lancashire:Northern mining villages once full of workers are now sparsely populated,points out Ian Bartlett,a birdwatcher in Hartlepool,in north-east England.They have become hot spots for birds and the people who watch them.Culrural difference also plays a part,thinks Mark Cocker,an expert on birds.The"obsession with tidiness"is stronger in the south,he says.Fewer people cultivate gardens;they prefer to cover them in decking and remove weeds from between concrete slabs.Village greens are mowed short.In contrast,Scotland and northern England have more trees,grassland and wind-swept moors.Less popular with humans,rugged parts of the countryside are filling up with a winged population instead.
The text mainly discusses_____

A.birds thriving in England
B.new north-south divide
C.culture difference between north and south
D.climate change in England

答案：B
解析：
主旨大意题。解决此类题目的关键为，通过做完前四道题，大致猜出文章的中心，同时再次通读各段首句，验证中心。本文的中心很好把控，都是在围绕着南北差异的新变化，即鸟的栖息地变化展开．B项new north-south divide刚好体现了这个内容，故B项为正确选项。【干扰排除】A、C、D项都在个别段落中有体现，但不能概括整个文章的内容，因此应当排除。

第8题：

The national flag of Great Britain is made up of a blue background and three crosses: the red cross of St. George of England, the white saltire of St.Andrew of Scotland and the red saltire of Ireland.()


参考答案：正确

第9题：

Text 2 When people talk about a"north-south divide"in Britain they are usually referring to house prices,employment and the ratio of private-sector to public-sector jobs.The south scores higher on all such measures.But new data from the British Trust for Ornithology（BTO）,a research charity,hints at the growth of another north-south divide-this time to the north's benefit.Every 20 years the BTO produces a superbly detailed atlas of bird life in Britain and Ireland.The 2007 t0 2011 edition is cheery:more species are tallied than in previous atlases,and many birds are increasing in number.Compared with two decades ago,45%of regular native species are ranging more widely while 32%are living in smaller areas;the rest have stayed put.But the most striking news comes from the north.The overall populations of woodland,farmland and migrant perching birds are up in northern England and Scotland but down in the south.The same is true of individual species such as the garden warbler,bullfinch and swallow.The number of cuckoos,a closely-watched species,declined by 63%in England between 1995 and 2010 but by only 5%in Scotland.Raptors are faring especially well in the south,but their numbers are rising in most parts of Britain.Partly this reflects climate change,suggests Simon Gillings of the BTO.Some birds are drawn to warmer winters in Scotland and northem England;visiting migrants may stick around for longer.Hard though it may be to believe during a week of torrential rain,the south is becoming drier,pushing snipe northward.More efficient farming has squeezed some farmland species.Some birds find it harder to make homes in the south,too.Pressure on housing means dilapidated buildings and barns,handy for nesting,have been converted into human dwellings.Between 2006 and 2012 the number of vacant dwellings fell by 17%in London and by 12%in Kent.Over the same period the number of empty houses increased by 16%in Derbyshire and by 10%in Lancashire:Northern mining villages once full of workers are now sparsely populated,points out Ian Bartlett,a birdwatcher in Hartlepool,in north-east England.They have become hot spots for birds and the people who watch them.Culrural difference also plays a part,thinks Mark Cocker,an expert on birds.The"obsession with tidiness"is stronger in the south,he says.Fewer people cultivate gardens;they prefer to cover them in decking and remove weeds from between concrete slabs.Village greens are mowed short.In contrast,Scotland and northern England have more trees,grassland and wind-swept moors.Less popular with humans,rugged parts of the countryside are filling up with a winged population instead.
It can be inferred from Paragraph 5 that"hot spots"means_____

A.the place the birds want to flee
B.the homes the birds want to stay
C.the place for hunting birds
D.the place built for birds

答案：B
解析：
词汇理解题。根据定位词定位到文章第五段。解决此类题目的关键在于通读对应段落后分析上下句，考查的词汇在最后一句，开头的代词They是解题的关键，上文是说Northem mining villages once full ofworkers are now sparsely populated（北部的采矿地区曾经工人涌动，如今却人迹罕至）．整个段落都是在阐述鸟类繁衍地，因此．hot spots应当与鸟类的栖息地有关，B项the homes the birds want to stay刚好对应文中所表达的意思，故B项为正确选项。【干扰排除】A项中的flee是逃离，与段落意思相反，故排除；c项为最大干扰项，结尾句是说与鸟类和观鸟者相关的地方，并没有提到捕鸟，故排除；D项中的“为鸟类建造的地方”文中并没有说这个地方是专门为鸟建的，因此应当排除。

第10题：

Which region in the U.S.contains 90% of theAmerican textile industry?

A.New England
B.The Midwest
C.The American West
D.The South

答案：D
解析：
美国地理。题目问美国哪个地区的纺织业占了全国的90%。

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