A
It is reported that conservation groups(自然环境保护小组) in North America have been arguing about the benefits and dangers of wolves.Some groups believe wolves should be killed.Other people believe wolves must be protected so that they will not disappear from the wilderness(荒野)．
For Killing Wolves
In Alaska, the wolf almost disappeared a few years ago, because hunters were killing hundreds of them for sport.However, laws were established to protect the wolves from sportsmen and people who catch the animals for their fur.So the wolf population has greatly increased.Now there are so many wolves that they are destroying their own food supply.
A wolf naturally eats animals in the deer family.People in the wilderness also hunt deer for food.Many of the animals have been destroyed by the very cold winters recently and by changes in the wilderness plant life.When the deer can't find enough food, they die.
If the wolves continue to kill large numbers of deer，their prey (猎物) will disappear some day.And the wolves will, too.So we must change the cycle of life in the wilderness to balance the ecology(生态学)．If we killed more wolves, we would save them and their prey from dying out.We'd also save some farm animals.
In another northern state，wolves attack cow and chickens for food.Farmers want the government to send biologists(生物学家) to study the problem.They believe it necessary to kill wolves in some areas and to protect them in places where there is a small wolf population.
Against Killing Wolves
If you had lived long ago, you would have heard many different stories about the dangerous wolf.According to most stories, hungry wolves often kill people for food.Even today, the stories of the “big bad wolf”will not disappear.
But the fact is that wolves are afraid of people and they seldom travel in areas where there is a human smell.When wolves eat other animals, they usually kill the very young or the sick and injured.The strongest survive.No kind of animal would have survived through the centuries if the weak members had not lived.And has always been a law of nature.
Although some people say it is good sense to kill wolves，we say it is nonsense! Researchers have found wolves and their prey living in balance.The wolves keep the deer population from becoming too large, and that keeps a balance in the wilderness plant life.
The real problem is that the areas where wolves can live are being used by people.Even if wilderness land is not used directly for human needs, the wolves can't always find enough food.So they travel to the nearest source, which is often a farm.Then there is danger.The “big bad wolf” has arrived! And everyone knows what happens next.
【语篇解读】 据报道北美自然环境保护小组对于杀死还是保护狼有不同的看法。
1．According to the passage, some people in North America favor killing wolves for all the following reasons EXCEPT that ．
A．there are too many wolves
B．they kill large numbers of deer
C．they attack cows and chickens for food
D．they destroy the wilderness plant life
D [细节理解题。分析“For Killing Wolves”下面所讲的内容，根据“Now there are so many wolves that they are destroying their own food supply”可排除A；根据“A wolf naturally eats animals in the deer family”可排除B；根据“wolves attack cows and chickens for food”可排除C。故选D。]
2．Some people are against killing wolves because ．
A．wolves help to keep the ecological balance in the wilderness
B．there is too small a wolf population in the wilderness
C．there are too many deer in the wilderness
D．wolves are afraid of people and never attack people
A [细节理解题。根据“Against Killing Wolves”下面的第三段中的“Researchers have found wolves and their prey living in balance”。可知A选项的意思与之相符。]
3．According to those against killing wolves, when wolves eat other animals， ．
A．they never eat strong and healthy ones
B．they always go against the law of nature
C．they might help this kind of animals survive in nature
D．they disturb the ecological balance in the wilderness
C [推理判断题。根据“Against Killing Wolves”下面的第二段中的“they usually kill the very young or the sick and injured.The strongest survive.No kind of animal would have survived through the centuries if the weak members had not lived.And has always been a law of nature”，可推断这是物竞天择适者生存的自然规律。结合各个选项的意思，可知选C。]
4. The last sentence“And everyone knows what happens next”implies that in such cases ．
A．farm animals will be in danger and have to be shipped away
B．wolves will kill people and people will in turn kill them
C．wolves will find enough food sources on farms
D．people will leave the areas where wolves can live
B [推理判断题。根据“And everyone knows what happens next”这句话所在的语境，并结合各个选项的意思。可知选B。]
