单项选择题

You can't get there other than by swimming.
A.only
B.besides
C.except
D.simply

A.A.only
B.besides
C.except
D.simply
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单项选择题
根据下列文章,请回答 16～22 题。The Threat to KiribatiThe people of Kiribati are afraid that one day in the not-too-distant future, their country will disappear from the face of the earth - literally. Several times this year, the Pacific island nation has been flooded by a sudden high tidE.These tides, which swept across the island and destroyed houses, came when there was neither wind nor rain.'This never happened before,' say the older citizens of Kiribati.What is causing these mysterious high tides? The answer may well be global warming. When fuels like oil and coal are being burned, pollutants (污染物) are released; these pollutants trap heat in the earth's atmospherE.Warmer temperatures cause water to expand and also create more water by melting glaciers (冰川) and polar (极地的) ice caps.If the trend continues, scientists say, many countries will suffer. Bangladesh, for example, might lose one-fifth of its lanD.The coral (珊瑚) island nations of the Pacific, like Kiribati and the Marshall Islands, however, would face an even worse fate - they would be swallowed by the seA.The loss of these coral islands would be everyone's loss. Coral formations are home to more species than any other place on earth.The people of these nations feel frustrateD.The sea, on which their economies have always been based, is suddenly threatening their existencE.They don't have the money for expensive technological solutions like seawalls. And they have no control over the pollutants, which are being released mainly by activities in large industrialized countries. All they can do is to hope that industrialized countries will take steps to reduce pollution.第 16 题 The people of Kiribati worry that one day their country will be taken away by a sudden high tidE.A.RightB.WrongC.Not mentioned
A.'This
B.
What
C.
If
D.
The
E.
A.Right
B.Wrong
C.Not
单项选择题
根据短文回答 36～40 题。Don't Count on DungConservationists(自然保护主义者)may be miscalculating the numbers of the threatened animals such as elephants，say African and American researchers.The error occurs because of a flaw in the way they estimate animal numbers Trom the piles of dung (粪)the creatures leave behinD.The mistake could lead researchers to think that there are twice as many elephants as there really are in some regions，according to Andrew Plumptre of the Wildlife Conservation Society ONCS)in New York.Biologist Katy Payne of Cornell University in Ithaca，New York，agrees.'We really need to know elephant numbers and the evidence that we have is quite indirect，'says Payne，who electronically tracks elephants.Counting elephants from planes is impossible in the vast rainforests of Central AfricA.So researchers often estimate elephant numbers by counting dung piles in a given areA.They also need to know the rate at which dung decays.Because it's extremely difficult to determine these rates，however researchers counting elephants in one region tend to rely on standard decay rates established elsewherE.But researchers at the WCS have found that this decay rate varies from region to region depending on the climate and environment. Using the wrong values can lead thE.census astray (离开正道), says PlumptrE.He and his colleague Anthony Chifu Nchanji studied decaying elephant dung in the forests of Cameroon. They found that the dung decayed between 55 and 65 per cent more slowly than the dung in the rainforests of neighboring Gabon. If researchers use decay rates from Gabon to count elephants in Cameroon, they would probably find more elephants than are actually arounD.This could mean estimates in Cameroon are at least twice as high as those derived from decay rates calculated locally, says PlumptrE.'However accurate your dung density estimate might be, the decay rate can severely affect the result'Plumptre also says that the dung-pile census should be carried out over a region similar in size to an elephant's natural rangE.The usual technique of monitoring only small, protected areas distorts numbers because elephants move in and out of these regions, he says. 'If the elephant population increases within the protected area, you can not determine whether it is a real increase or whether it is due to elephants moving in because they are being poached (入侵偷猎) outsidE.'Plumptre says that similar problems may also affect other animal census studies that rely on indirect evidence such as. nests, tracks or burrows (地洞).第 36 题 The word 'threatened' in the first sentence of the first paragraph could be best replaced by（ ）A.'endangered'B.'frightened'C.'killed'D.'angered'
A.The
B.'We
C.So
D.They
E.Because
F.
He
G.
This
H.'
Plumptre
I.'endangered'
B.'frightened'
C.'killed'
D.'angered'
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