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By 1970, according to a World Wildlife Fund report, only about 4,500 tigers survived throughout the world-half of them in India. Mr. Foresters, who followed and counted tiger footprints, estimated that in May 1972 only about 1,800 tigers existed in India. Project Tiger Supported by W.W.F. was immediately launched. Nine tiger reserves(保留地) were created, with armed guards protecting them.
The project provided opportunities for researchers from India and abroad to study tigers in the reserves and gather previously unavailable information about their habits. Studies show that a male tiger may control a hunting territory of between 10 and 20 square kilometers, depending on its age, size and strength. Theterritory of male includes the smaller territories(领地) of three or four tigresses. A tiger marks the boundaries of its territories by spraying urine and other bodily liquids on bushes. But it tries to avoid territorial fights, being guided by the distinctive body smell of other tigers. Tigers fight to death only when a tigress is defending her young, or when a tiger is guarding a tigress from the attentions of other males.
The popular image of the tiger is that of a merciless and unconquerable hunter. But studies show that it catches only one of 20 victims it tries to attack.
Fears have recently developed that Project Tiger has been too successful. It has enabled the tiger population to double (by mid-80 S), but India"s human population has also grown out of control. Currently it is 750 million and likely to be 900 million by the end of the century. Land problem is becoming serious and many rural people feel bitter about the fact that some rich forests are reserved for tigers. A growing number of attacks by tigers on man has added to the hostility .
练习题：
Choose correct answers to the question:
1.The ultimate aim of Project Tiger is to ___.
A.study the growth rate of tigers
B.protect tigers from being killed
C.promote the breeding of young tigers
D.analyze the behavioral patterns of tigers
2.Studies have shown that ______.
A.a tigress never attacks until attacked
B.the tigress is not as fierce as the tigers
C.a tiger usually fights another tiger to defend its own territory
D.the tiger is not an efficient hunter as is commonly described
3.According to the passage, a tiger"s territory _.
A.remains unchanged
B.is often defended by tigresses
C.expands as the tiger grows up
D.is the cause of most fights
4.Some people are afraid that Project Tiger _____.
A.has been carried too far
B.has not received enough attention
C.has failed to achieve its goal
D.is not worth the money spent on it
5.The author seems _____.
A.to be enthusiastic about Project Tiger
B.to have a matter-of-fact attitude towards Project Tiger
C.to have a hostile attitude towards Project Tiger
D.to be satisfied with Project Tiger
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