Ⅰ.阅读理解
阅读下列短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。
A
Around the world，honeybee groups are dying in huge numbers：About onethird of nests collapse each year.For bees and the plants they pollinate (授粉)—as well as for beekeepers，farmers，honey lovers and everyone else who appreciates this marvelous social insect—this is a catastrophe.
