Here in Alaska, the wolf almost disappeared a few years ago, because hunters were killing hundreds of them for ____. However, laws were passed to protect the wolves ____ the sportsmen and also the people who ____ the animals for fur. So the wolf quantity has greatly ____.Now there are so ____ wolves that they are destroying their own ____ supply.
A wolf naturally preys (捕食) on animals in the ____ family. People in the wilderness (荒野) also hunt deer for food. Many of the animals have been destroyed by the very ____ recently and by changes in the wilderness ____ life. When the deer can't find ____ food, they die.
If the wolves ____ to kill large numbers of deer, their prey will ____ some day. And the wolves will, too. So we must ____ the cycle of life in the wilderness to ____ the ecology(生态). If we killed more wolves, we would ____ them and their prey from extinction(绝种). We'd also save some ____ animals.
In another northern state, wolves attacked chickens for ____. ____ want the United States government to send a team of ____ to study the problem. They believe it is necessary to kill wolves in some areas and to protect them in places where there is a ____ wolf quantity.
A.fun B.food C.sports D.interest
A.for B.of C.from D.about
A.take B.catch C.find D.play
A.increased B.reduced C.developed D.advanced
A.many B.few C.much D.little
A.animal B.plant C.food D.water
A.cat B.dog C.deer D.cows
A.hot summers B.warm springs C.cool autumns D.cold winters
A.animal B.plant C.food D.cold
A.good B.much C.more D.enough
A.start B.stop C.decide D.continue
A.disappear B.reduce C.increase D.appear
A.keep B.change C.renew D.form
A.change B.remain C.balance D.keep
A.wild B.farm C.useful D.field
A.fur B.sport C.food D.fun
A.Farmers B.Scientists C.Biologists D.Fishermen
A.officials B.doctors C.teachers D.biologists
A.small B.large C.increasing D.natural