题目

阅读下面短文，掌握其大意，从每题所给的 A、B、C、D 四个选项中，选出最佳选项。 You never know what naturehas prepared for you as a gift. Years ago, when walking alone on a beach inremote southwest Florida, I was so1to hear splashes（水溅声）coming from the water. As I walked in the2the sounds, I saw amanatee(海牛)show its head out of the water,3a great snuffling(带鼻音的)breath. It seemed that it was in4and trying to get out ofit. I'd never seen a5like this before. I wantedto ask for help, but there was no one 6. So I went into theshallow water and 亚洲地势 ， 和 雄踞中部，向西有 ，向南有 ，向北有 ，平原多分布在 。 中部高、四周低 青藏高原 帕米尔高原 伊朗高原 德干高原 蒙古高原 四周 【解析】亚洲的地势中部高，四周低，高原和山地主要集中在中部。“世界屋脊”的青藏高原和帕米尔高原巍峨突出，雄踞中部，向西有伊朗高原、向南有德干高原，向北有蒙古高原，平原多分布在四周。