TEXT E The science of wildlife
management is actually quite new. It is the third major phase of the original
conservation movement. The first phase involved the preservation of wildlife
through laws and hunting regulations. This phase was a reaction against the
terrible destruction of many wild creatures. The second phase involved the
control of certain birds and animals that were preying on other wildlife and
causing their decline. However, the first two phases of the
conservation movement had serious limitations. The new laws allowed certain
animals to increase so much that they actually "ate up" their habitat. Many of
them starved to death because the land simply could not provide for them all.
Something had to be done. This is how careful wildlife management came into
being. One of the chief concerns of wildlife management is the
protection and improvement of the natural habitat so that animals have enough
food and water to survive. Wildlife management involves care of the soil to
produce good vegetation. It involves care of plants and bushes, not only as a
source of food, but also as protection. Animals needs cover to hide from their
natural enemies and to raise their young safely. Just as crops
are harvested, wildlife too must sometimes be "harvested". By allowing limited
hunting and fishing, good management can control certain species that threaten
to overpopulate their habitat. Another major part of the
wildlife management is the increasing of certain species by artificial means.
Some creatures, like the whooping crane, were brought back from the edge of
extinction in this way. In order to save these species, members of wildlife
teams have reared the young in the safety of research stations. The main idea of the second paragraph is that______.
A．the first two phases of the wildlife conservation movement failed B．the new laws made certain animals increase too rapidly C．there was not enough room for wild creatures to increase D．the excessive growth of certain animals caused their starvation