999精品在线视频,手机成人午夜在线视频,久久不卡国产精品无码,中日无码在线观看,成人av手机在线观看,日韩精品亚洲一区中文字幕,亚洲av无码人妻,四虎国产在线观看 ?

Death Valley

2021-08-14 10:51:54門連海
考試與評價·高一版 2021年1期

門連海

Death Valley doesnt sound like a very inviting place. It is one of the hottest places in the world. The highest temperature ever recorded there was 134 degrees Fahrenheit. That is the highest ever recorded in the Western Hemisphere. And that was in the shade! Death Valley in California covers nearly 3,000 square miles. Approximately 555 square miles are below the surface of the sea. One point is 282 feet below sea level — the lowest point in the Western Hemisphere. In Death Valley, pioneers and explorers faced death from thirst and the searing heat. Yet despite its name and bad reputation, Death Valley is not just an empty wilderness of sand and rock. It is a place of spectacular scenic beauty and home to plants, animals, and even humans.

Death Valley is the driest place in North America. Yet far from being dead, it is alive with plants and animals. They have adapted to this harsh region. In the salt flats on the valley floor, there are no plants to be seen. But near the edge, there are grasses. Farther away, there are some small bushes and cactus. On higher ground there are shrubs and shrub-like trees. Finally, high on the mountainside, there are pine trees.

What is not visible are the seeds lodged in the soil, waiting for rain. When it does come, a brilliant display of flowers carpets the once barren flatlands. Even the? cactus? blossome. It is the most common of all desert plants. As the water dries up and the hot summer nears, the flowers die. But first they produce seeds that will wait for the rains of another year.

At noon on a summer day, Death Valley looks truly devoid of wildlife. But in reality, there are 55 species of mammals, 32 kinds of birds, 36 kinds of reptiles, and 3 kinds of amphibians. During the day many seek shelter underrocks and in burrows. As night approaches, however, the land cools. The desert becomes a center of animal activity. Many of these animals, like the desert plants, have adapted to the dry desert. They use water very efficiently. They can often survive on water supplies that would leave similar animals elsewhere dying of thirst. Humans have also learned how to survive in this land.

Going to Death Valley once meant danger, hardship, and even death. Today, visitors can drive there in air-conditioned comfort. They can stay in hotels. They dont have to worry about dying of hunger or thirst. They can look upon the hills, canyons, and cactus with appreciation rather than fear. They can admire the beauty of this strange land. They can leave with happy memories.

Choose the best answer according to the passage.

1. Rain in Death Valley causes ____.

A. flowers to bloom? ? B. minerals to form

C. animals to come out and hunt

2. Death Valley is home to plants and animals that have____.

A. adapted to the environment

B. been brought there by humans

C. not been able to survive anyplace else

3. Of all places in North America, Death Valley is the _____.

A. highest B. driest C. least populated

主站蜘蛛池模板: 免费人成又黄又爽的视频网站| 亚洲AⅤ综合在线欧美一区| 女人av社区男人的天堂| 亚洲Aⅴ无码专区在线观看q| 又爽又黄又无遮挡网站| 婷婷色在线视频| 88av在线看| 成人在线视频一区| 天天摸夜夜操| 久久久久久久久久国产精品| 99国产精品国产| 亚洲成人播放| 日本久久免费| 亚洲国产清纯| 国产91特黄特色A级毛片| 一本综合久久| 国内精品免费| 亚洲性日韩精品一区二区| 亚洲欧美日本国产专区一区| a毛片免费观看| 欧美成人看片一区二区三区| 伊人久久青草青青综合| 国产精品第一区在线观看| 国产精品自在自线免费观看| 久久精品电影| 中文字幕有乳无码| 亚洲永久色| 久久精品女人天堂aaa| 天堂网亚洲综合在线| 欧美激情第一区| 久久精品丝袜| 精品99在线观看| 日韩美毛片| 亚洲欧美综合另类图片小说区| 亚洲中文精品人人永久免费| 亚洲无码高清一区| 97精品久久久大香线焦| 日韩国产综合精选| Jizz国产色系免费| 亚洲制服丝袜第一页| 国产91精选在线观看| 国产福利不卡视频| 成人国产免费| 日韩精品亚洲精品第一页| 日本91视频| 日韩小视频在线观看| 国产性精品| 午夜限制老子影院888| 欧美成在线视频| 人妻免费无码不卡视频| 强奷白丝美女在线观看| 久久永久免费人妻精品| 日韩精品久久无码中文字幕色欲| 亚洲一级毛片在线观播放| 四虎永久免费地址| 一级香蕉人体视频| 午夜综合网| 在线观看国产黄色| 日韩中文欧美| 麻豆国产原创视频在线播放| 美女被狂躁www在线观看| 国产欧美在线观看精品一区污| 日韩高清中文字幕| 欧美怡红院视频一区二区三区| 欧美A级V片在线观看| 国产欧美视频综合二区| 久久精品视频一| 成人免费网站在线观看| 国产手机在线观看| 国产精品成人免费视频99| 香蕉精品在线| 在线观看无码a∨| 亚洲欧美精品日韩欧美| 久久久精品无码一二三区| 亚洲天堂日本| 国产成人精品视频一区二区电影| 99热这里只有精品久久免费| 国产日韩av在线播放| 亚洲第一页在线观看| 国产免费高清无需播放器| 色悠久久久| 亚洲成a人片77777在线播放|