一个英语问题，最后是英语比较厉害的来，老师最好，谢谢

一个英语问题，最后是英语比较厉害的来，老师最好，谢谢
，Fishermen and sailors sometimes claim to have seen monsters in the sea. Though people have often laughed at stories told by seamen, it is now known that many of these 'monsters' which have at times been sighted are simply strange fish. Occasionally, unusual creatures are washed to the shore, but they are rarely caught out at sea. Some time ago, however, a peculiar fish was caught near Madagascar. A small fishing boat was carried miles out to sea by the powerful fish as it pulled on the line. Realizing that this was no ordinary fish, the fisherman made every effort not to damage it in any way. When it was eventually brought to shore, it was found to be over thirteen feet long. It had a head like a horse, big blue eyes, shining silver skin, and a bright red tail. The fish, which has since been sent to a museum where it is being examined by a scientist, is called an oarfish. Such creatures have rarely been seen alive by man as they live at a depth of six hundred feet，请问上文中，washed to the shore，shore为什么加the,看文中好像也没有特指吧，再往后看brought to shore 为什么shore 前没有the ,shore 在这两句中有什么不一样呢，文章取自新概念二，82课，谢谢大家，最好详细点，谢谢，