题目

完形填空 In Botswana, farmers let their cattle feed on the grasslands surrounding the banks of the Okavango River. This area is full of 1 , including hungry lions and other big cats which often rely on surprise to approach quietly and 2 their prey (猎物). Farm animal 3 can be economically disastrous for these often poor farmers, and their fight-back killings in response is a major 4 of population decline in large cats. But what if there were a 5 thing farmers could do to 6 their losses? The idea came about of painting eyes on the backsides of cows to 7 lions into thinking they've been seen by their would-be prey. And once seen, these cats often 8 the hunt. This visionary solution was 9 by nature. A number of animal species have 10 eyespot markings that prevent their 11 enemies from hunting them—some frog backsides have eyespots, as do the back ends of some fish. Probably the most famous 12 is on butterflies. They have eyespots in their wings, and these discourage hunters such as birds from attacking them. Even humans are 13 by eyespots: one study found that people are less likely to steal bikes when an image of 14 eyes is displayed nearby. Over the four-year-long trial, researchers found that not one of the hundreds of cows with eyespots on their backsides was 15 by an animal hunter. （1） A . grass B . wildlife C . resources D . wonders （2） A . set up B . bring back C . drive away D . take down （3） A . losses B . shortages C . products D . diseases （4） A . cause B . effect C . part D . problem （5） A . silly B . complex C . simple D . cruel （6） A . double B . cut C . balance D . cover （7） A . trick B . talk C . force D . frighten （8） A . join B . continue C . restart D . abandon （9） A . supported B . challenged C . inspired D . created （10） A . painted B . carved C . discovered D . developed （11） A . angry B . deadly C . lonely D . greedy （12） A . solution B . study C . example D . marking （13） A . annoyed B . puzzled C . influenced D . attracted （14） A . doubtful B . thought C . fearful D . watchful （15） A . attacked B . found C . recognized D . scared 答案：（1）B；（2）D；（3）A；（4）A；（5）C；（6）B；（7）A；（8）D；（9）C；（10）D；（11）B；（12）C；（13）C；（14）D；（15）A；

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