問題詳情


(B)Many of us remember that around 2006, scientists, entomologists and others began noticing a decline in the bee population. As the next few years progressed, the decline was referred to as a crisis; bees were dying off, and nobody knew why or how to stop it."Colony collapse disorder/1 a situation in which adult bees, crucial to the colony's survival, abandon the hive by either dying or flying off. The disorder was uncannily reminiscent of the mysterious disappearance of the Mayans centuries ago, and as the crisis continued, researchers scrambled to learn why our bees were declining and determine what to do.Bees are far more than the subject of songs； the bane of outdoor picnics and the busy producers of the sweet stuff we all love, honey. They play an integral and critical role in sustaining our food supply by carrying pollen from one source to another Without bees to fertilize plants, crops would decline. Without crops, well, you get the picture. The entire human race could be in serious trouble.Although bee populations have grown and declined throughout history, the colony collapses in recent years have created more alarm than during previous such instances. By 2010, the decline in the bee population was a global concern, and in March 2011, the United Nations predicted yet further declines in the beloved insect that pollinates a huge percentage of the world's food crops.In addition to reports of collapsed colonies, researchers began discovering a greater percentage of pesticides in wax samples, which further endangered both the bees and their ability to safely and effectively pass pollen from one plant to another. In January of 2012, furthering its efforts to combat the decline, the USDA announced it would fund research to help create bee-friendly seed mixtures, which are expected to provide optimum habitats for native species of bees.Answers to the problems will not be simple, nor will they be easy to target. Although it might seem that one good solution would work for all bees, that's not the case. The January 2012 USDA report mentions a decline in 4,000 species of bees native to North America. Each species can have its own characteristics, and the variety of solutions needed to halt the decline could be huge.
57. What is the passage mainly about?
(A) Possible solutions to the disappearance of bees.
(B) Countries suffering from the disappearance of bees.
(C) Potential danger caused by the disappearance of bees.
(D) Species going extinct due to the disappearance of bees.

參考答案

答案：A
難度：適中0.5
統計：A(3),B(2),C(4),D(1),E(0)

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