In many countries today, laws protect wildlife．In India the need for such protection was realized centuries ago．About 300 B．C．, an Indian writer described forests that were somewhat like national parks today．The killing of game beasts was carefully watched and directed．Some animals were fully protected．Within the forest, nobody was allowed to cut timber(木材)，burn wood for charcoal(炭)，or trap(设陷阱捕获)animals for their furs．Animals that became dangerous to human visitors were trapped or killed outside the park, so that other animals would not become uneasy．
The need for wildlife protection is greater now than ever before．About a thousand species(＝sorts)of animals are in danger of extinction(灭绝)，and the rate at which they are being destroyed has increased．With mammals(哺乳动物)，for example, the rate of extinction is now about one kind every year; from A．D．1 to 1800, the rate was about one species every fifty years．Everywhere, men are trying to solve the problem of protecting wildlife while caring for the world's growing population．
(1)
Cutting timber in these forests was ________．
[ ]
A．
allowed to nobles only
B．
not allowed
C．
limited to a certain kind of trees
D．
considered as a crime
(2)
Caring for animals in these forests included ________．
[ ]
A．
taking dangerous animals out of the park before killing them
B．
to employ men to take care of injured animals
C．
to permit the hunters to take away ill animals
D．
to raise the dangerous animals
(3)
According to the last sentence, men trying to preserve wildlife are thinking about ________．
[ ]
A．
much more national parks
B．
stricter laws against hunting
C．
the needs of herdsmen
D．
the needs of people
(4)
This passage implies that ________．
[ ]
A．
the growth of the world's population has meant greater danger to wildlife
B．
about a thousand species of animals are in danger of extinction
C．
the rate of extinction of mammals is lower now than it was from A．D．1 to 1800
D．
hunters who kill species are severely punished by law
it comes because we are ready to receive it．When someone asked Isaac Newton how he had discovered the laws of gravity, he replied, “I am certain that any mind working on a problem continuously will be prepared for the sudden answer．” Albert Einstein received the Nobel Prize for physics in 1921 and said that there are discoveries waiting to be made if people continue to look and study all the time．