英语听力：自然百科 Ireland 爱尔兰

 This is the only horse race in the world to be run at the edge of the sea. Held once a year on Laytown Beach near Dublin, it reflects Ireland’s centuries-old love affair with the horse. Man has bred these horses for speed and endurance. He has left his own mark on what time and nature have already made, just as he helped to mold the Irish landscape, animals, and plants.

 
And before humans, older, more profound forces were at work. This ancient land might seem timeless but change lies at its very heart. Ireland has rarely stood still. Ireland’s hills and mountains are formed from her oldest, hardest rocks. They’re part of the legacy 1 of her geological past, the foundation on which this island is built.
 
But the landscapes we see today have more recent origins. Everywhere Ireland has been sculpted 2 in some way by one of the greatest forces of nature, ice. For almost two million years, Ireland, like the rest of Europe was locked in the grip of the ice age. Glaciers 3, vast moving sheets of ice destroyed nearly all life and transformed the contours of the land. No part of Ireland completely escaped their impact. In the mountains of Mourne in Northern Ireland, the glaciers never quite reach the summits, but the cold they carried with them did. Frost actions split and shattered the rock faces, chiseling 4 steep ravines and deeply carved peaks.
 
One bird of the mountains has made the most of this ice age legacy-- the Peregrine Falcon 5 comes to the Mournes to nest. Remote rock faces and inaccessible 6 ledges 7  are the safest place to raise their chicks. And the land around provides good hunting for the adults-- all good reasons why there’re more Peregrines here than anywhere else in Ireland. But even Peregrines couldn’t have lived here until the ice age ended, around 13,000 years ago. Exactly when they staked their claim to Ireland Uplands isn’t clear. But since then their fortunes, like everything else, here have changed with the times. Today they’re wide spread throughout the country. But less than 40 years ago, Peregrines hit an all-time low. Poisoned by insecticides designed to protect seeds and crops, their numbers died to just 27 successful nesting pairs, bringing them paralyzedly close to extinction 8. Only when the chemicals were banned did the Peregrines recovery begin. It’s been a slow process, but they are now thriving and reclaiming 9 the mountain landscape they inherited from the ice.
 
Ireland’s mountains lie scattered 10 around her edge, encircling a watery 11 landscape of rivers, streams, lakes, fens 12, and barks. On her west coast in County Mayo stands Ireland’s most sacred mountain, Croagh Patrick. On this summit, Ireland’s patron saint is believed to have fasted for 40 days and nights. And today more than 1500 years later, the mountain remains 13 a place of pilgrimage. Every year on Reek 14 Sunday, the last Sunday in July, more than 25,000 people follow in St. Patrick’s footsteps. As the pilgrims make their steep descent, the view before them is another with its feet in the ice age, Clew Bay.
 
Well-backed islands are a testimony 15 to the power of glaciers. Stones and soil were trapped beneath their massive weight and molded into mini-hills called Drummans. Then when the ice retreated and sea levels rose, these glacial relics 16 were partly submerged, creating a drowned landscape.
 
In this water world, even the sheep are shepherded by boat, in traditional currachs powered by modern outboard motors. The popular belief is that there are 365 islands in Clew Bay, one for each day of the year. They are sheltered from the more extreme conditions of the North Atlantic and their rocky shorelines are a sanctuary 17 for common seals.
 
Clew Bay is one of those corners of Ireland that feels frozen in time. Whole communities once carved a living from these islands, animals grazed, and homesteads grew up around small sheltered bays. But famine drove many away and changing time has made this kind of life uneconomic today. Only seven of the islands are still inhabited.
 
There are ghosts of past lives all along this stretch of coast. Rockfleet Castle was one of many belonging to Grace O’Malley, Queen of the Clew Bay pirates, who ruled these waters in the 16th century. The network of tiny isles 18 and bays provided ideal hideaways for the pirate galleys 19, the plundered 20 passing ships. It’s hard to imagine such a turbulent past. All that's likely to disturb these waters today are otters 21 hunting for food.