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A major reason for 【21】______ in the animal world is territory. The male animal establishes an area. The size of the area is
A major reason for 【21】______ in the animal world is territory. The male animal establishes an area. The size of the area is
admin
2010-07-06
71
问题
A major reason for 【21】______ in the animal world is territory. The male animal establishes an area. The size of the area is sufficient to provide food for him, his 【22】______ and their offspring. Migrating birds, for example, 【23】______ up the best territory in the order of" first come, first 【24】______ . "The late arrivals may acquire larger territories, but less food is 【25】______ ,or they are too close to the 【26】______ of the enemies of the species. 【27】______ there is really insufficient food or the danger is very great, the animal will not mate. In this way, the members of the species which are less fit will not have 【28】______ .
When there is conflict 【29】______ territory, animals will commonly use force, or 【30】______ of force, to decide which will stay and which will go. It is interesting to note, however, that animals seem to use the 【31】______ amount of force necessary to drive away the 【32】______ . There is usually no killing. In tile case of those animals which are 【33】______ of doing each other great harm, there is a system for the 【34】______ animal to show the winning animal that he wishes to 【35】______ . When he shows this, the 【36】______ normally stops fighting. Animals especially birds, which can easily escape from conflict seem to have no obstacle against killing, equally no mechanism 【37】______ submission. The defeated bird simply flies away. However, if two doves are 【38】______ in a cage, and they start fighting, they will continue to fight until one kills the other. We all think of the dove as a 【39】______ of peace and, in its natural habitat,it is peaceful. But the" peace "mechanism does not 【40】______ in a cage.
【38】
选项
A、stationed
B、placed
C、deposited
D、lined
答案
B
解析
B place意为“放置”;A station“驻扎、配置”;C deposit“存放、堆积”;D line“排成一行”。本句意思是“但是,如果把两只鸽子放在一只笼子里,它们就开始争斗知道一只杀死另一只为止。”因此,B 最为符合题意。
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