2023届浙江省杭州高级中学5月月考阅读D篇语篇二次开发学案

2023年浙江省杭州高级中学5月月考阅读D篇语篇拓展练习 一、阅读理解（杭州高级中学5月月考阅读理解D篇） 阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳答案。 Every year migratory bats travel from Mexico to Bracken Cave, where they spend the summer consuming insects that would otherwise hungrily eat common food crops. But the bats have been showing up far earlier than they did two decades ago. In a study, scientists at Rothamsted Research, an agricultural laboratory in England, used radar data from 160 U. S. weather stations to analyze activity in the Texas bat colony from 1995 through 2017. They discovered the creatures were leaving their winter quarters in Mexico earlier and reproducing sooner. They were also astonished to find increasing numbers of bats overwintering (过冬) at Bracken Cave instead of heading back to their cold weather quarters in Mexico. Overwintering is a sign that warmer temperatures change the bats' annual rhythms, Rothamsted biologist Phillip Stepanian says. A separate study of migratory bats in Indiana, published last year, found that temperature variations affected arrival and departure times--likewise hinting at the potential influence of climate change. Joy O'Keefe, a biology professor at Indiana State University and co-author of that study, says early arrival at their summer habitats could expose these bats to cold snaps(寒流), and they could freeze to death. Joy O'Keefe and her colleagues also found that changing bat migration times can also clash with rainfall patterns. Many insects that bats eat breed in seasonal lakes and puddles. If the bats arrive too early to benefit from summer rainfall and the resulting abundance of insects, they may struggle to feed their pups (幼崽) or skip reproduction altogether, O'Keefe says. She fears this shift could cause Midwestern bats to decrease toward extinction, which would be bad news for humans. “Declines in bat populations could have severe effects for crop success,” she says, adding that bats also “control significant disease vectors, such as mosquitoes.” However, sc