亚洲免费av电影一区二区三区,日韩爱爱视频,51精品视频一区二区三区,91视频爱爱,日韩欧美在线播放视频,中文字幕少妇AV,亚洲电影中文字幕,久久久久亚洲av成人网址,久久综合视频网站,国产在线不卡免费播放

        ?

        Facts of Yellowstone

        2022-11-23 00:33:39李小華
        瘋狂英語(yǔ)·新悅讀 2022年7期
        關(guān)鍵詞:溫帶火山口峽谷

        It's been called America's“Wonderland”for good reason.Generations of travelers have embraced Yellowstone—the first national park in the United States—and explored its wonders,spread across some 3,471 square miles,mostly in Wyoming,but with portions(部分)in Montana and Idaho.

        This unmatched wilderness, now marking 150 years as a national park,is vastand varied,consisting offorests,lakes,mountains,valleys,and canyons(峽谷).Some 90 percent of the park and its surrounding region remains in a wild state,constituting one of the last large undamaged ecosystems in the northern temperate(溫帶的)zone.

        Yellowstone wasestablished asa national park in 1872“for the benefit and enjoyment of the people”.Its founding marked the birth of the US National Park System and represents the public wild lands known as the Greater Yellowstone Ecosystem,nearly 10 times larger than the park.

        The region's geological history reaches back at least 66 million years,when volcanism(火山活動(dòng))produced spectacular features.The park includes three calderas(破火山口),formed from volcanic eruptions 2.1 million,1.3 million,and 640,000 years ago,respectively.

        Indigenous Americans have lived in the region for more than 11,000 years.The ancestors used the resources of this land forfood,shelter,medicine and religious purposes for millennia.

        Reading Check

        1.What does Yellowstone consist of as a national park?

        _________________________________

        2.When was Yellowstone established as a national park?

        _________________________________

        猜你喜歡
        溫帶火山口峽谷
        第12期 參考答案
        第31期 參考答案
        第31期 參考答案
        烏蘭察布瑪珥式火山口群的發(fā)現(xiàn)與研究
        Tongue Twister
        世界奇特的火山口湖
        Ngorongoro Crater
        峽谷陰謀
        馬嶺河峽谷
        寂靜峽谷
        丝袜美腿视频一区二区| 亚洲一区二区在线视频播放| 精品久久久亚洲中文字幕| 国产麻豆一区二区三区在| 中文字幕亚洲欧美在线不卡| 免费a级毛片无码a∨免费软件| 国产亚洲精品国产福利在线观看| 国产精品久久久看三级| 国产亚洲精品久久午夜玫瑰园| 久久中文精品无码中文字幕下载| 国产午夜精品理论片| 国产亚洲精品高清视频| 日本久久伊人特级黄色| 亚洲人成网站18禁止久久影院| 国产人澡人澡澡澡人碰视频| 激情免费视频一区二区三区| 久久久久成人精品免费播放动漫| 9lporm自拍视频区| 日韩av一区二区毛片| 一区二区三区在线观看人妖| 五月丁香六月综合缴清无码| 国产a v无码专区亚洲av| 久久久久亚洲AV无码专区一区| 久久精品中文字幕有码| 一本久道综合在线无码人妻| 欧美激情区| 91亚洲国产成人久久精品网站 | 亚洲av综合av成人小说| 欧美在线三级艳情网站| 少妇爽到爆视频网站免费| 国产青青草在线观看视频| 色欲人妻综合网| 亚洲一区二区久久青草| 成人免费播放视频影院| 成人午夜特黄aaaaa片男男| 亚洲美女影院| 久久综合九色综合久久久| 国产精品乱码人妻一区二区三区 | 亚洲天堂线上免费av| 国产丝袜美女| 欧美在线三级艳情网站|