单项选择题

Conservation or Wasted Effort?
The black robin(旅鸫)is one of the world's rarest birds. It is a small, wild bird, and it lives only on the island of Little Mangere, off the coast of New ZealanD.In 1967 there were about fifty black robins there; in 1977 there were fewer than ten.___________(46)
Energetic steps are being taken to preserve the black robin. ___________(47) The idea is to buy another island nearby as a special home, a 'reserve', for threatened wild life, including black robins. The organizers say .that Little Mangere should then be restocked (重新准备) with the robin's fooD.Thousands of the required plants are at present being cultivated in New ZealanD.
Is all this concern a waste of human effort? ___________(48) Are we losing our sense of what is reasonable and what is unreasonable?
In the earth's long, long past hundreds of kinds of creatures have evolved, risen to a degree of success and died out. In the long, long future there will be many new and different forms of lifE.Those creatures that adapt themselves successfully to what the earth offers will survive for a long timE.___________ (49) This is nature's proven method of operation.
The rule of selection---'the survival of the fittest'--is the one by which human beings have themselves arrived on the scenE.We, being one of the most adaptable creatures the earth has yet produced, may last longer than most.___________ (50) You may take it as another rule that when, at last, human beings show signs of dying out, no other creature will extend a paw (爪) to postpone our departurE.On the contrary, we will be hurried out.
Life seems to have grown too tough for black robins. I leave you to judge whether we should try to do anything about it.
A.Some creatures, certain small animals,insects and birds, will almost certainly outlast (比……长久) man, for they seem even more adaptablE.
B.Those that fail to meet the challenges will disappear early.
C.Detailed studies are going on, and a public appeal for money has been madE.
D.Both represent orders in the classification of lifE.
E.Is it any business of ours whether the black robin survives or dies out?
F.These are the only black robins left in the worlD.
第 46 题 请选择（46）处的最佳答案．

A.In
B.___________(46)
Energetic
C.that
D.Thousands
E.
Is
F.
The
G.___________
H.
Life
I.Some
J.
B.Those
K.
C.Detailed
L.
D.Both
M.
E.
N.
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单项选择题
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.What
B.
if
C.
The
D.
A.Right
B.Wrong
C.Not
单项选择题
New Foods and the New WorldIn the last 500 years, nothing about people - not their clothes, ideas, or languages- has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree (可可树) by South American Indians. The Spanish introduced it to the rest of the world during the 1500's. And although it was very expensive, it quickly became fashionablE.In London, shops where chocolate drinks were served became important meeting places. Some still exist today.The potato is also from the New WorlD.Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the 'Potato Famine (饥荒)'of 1845-1846, and thousands more were forced to leave their homeland and move to AmericA.There are many other foods that have traveled from South America to the Old WorlD.But some others went in the opposite direction. Brazil is now the world's largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. But it is native to Ethiopia, a country in Africa .it was first made into a drink by Arabs during the 1400's.According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. He tried one and experienced the 'wide-awake' feeling that one third of the world's population now starts the day with.第 31 题 According to the passage, which of the following has changed the most in the last 500 years?A.FooD.B.Clothing.C.Ideology.D.LanguagE.
A.The
B.
There
C.it
D.
According
E.FooD.
B.Clothing.
C.Ideology.
D.LanguagE.
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