2014年职称英语理工类教材学习部分内容及解析
8.. Explorer of the Extreme Deep
(替换2013年用书理工类阅读理解第二十篇:Hacking )
Oceans cover more than two-thirds of our planet. Yet, just a small fraction of the underwater world has been explored. Now, Scientists at the Woods Hole1 Oceanographic Institution in Massachusetts are building an underwater vehicle that will carry explorers as deep as 6,500 meters . The new machine, known as a manned submersible or human-operated vehicle , will replace another one named Alvin2 which has an amazing record of discovery, playing a key role in various important and famous undersea expeditions. Alvin has been operating for 40 years but can go down only 4,500 meters . Its about time for an upgrade, WHOI researchers say.
Alvin was launched in 1964. Since then, Alvin has worked between 200 and 250 days a year, says Daniel Fornari, a marine geologist and director of the Deep Ocean Exploration Institute at WHOI. During its lifetime, Alvin has carried some 12,000 people on a total of more than 3,000 dives.
A newer, better versions of Alvin is bound to reveal even more surprises about a world that is still full of mysteries, Fornari says. It might also make the job of exploration a little easier. We take so much for granted on land, Fornari says. We can walk around and see with our eyes how big things are. We can see colors, special arrangements.
Size-wise, the new HOV will be similar to Alvin. Itll be about 37 feet long. The setting area inside will be a small sphere, about 8 feet wide, like Alvin, itll carry a pilot and two passengers. It will be just as maneuverable. In most other ways, it will give passengers more opportunities to enjoy the view, for one thing. Alvin has only three windows, the new vehicle will have five, with more overlap so that the passengers and the pilot can see the same thing.
Alvin can go up and down at a rate of 30 meters every second, and its maximum speed is 2 knots , while the new vehicle will be able to ascend and descend at 44 meters per second. Itll reach speeds of 3 knots, or 3.5 miles per hour.
词汇:
fraction n. 一部分 dive v. n. 潜水;跳水
underwater adj. 水下的;adv. 在水下
bound adj. 受约束的,一定的
manned adj. 载人的
sphere n. 球体;范围
undersea adj. 海底的
maneuverable adj. 机动的,可调动的
submersible n. 潜艇;潜水器
overlap v. n. 重叠
upgrade n. 升级
ascend v. 上升
geologist n. 地质学家
高中英语语法-学习英语的捷径:一个美国留学生的忠告之二
高中英语语法-克服学外语的五大忌讳
高中英语语法-学习口语的十大误区
高中英语语法-英语专家:严格训练,说一口纯正英语不难
高中英语语法-定语从句专练(二)
高中英语语法-英文的快速阅读
高中英语语法-如何巧学善用英语成语之二
高中英语语法-汉英翻译中的新词新语讲解之二
高中英语语法-高一英语Unit 2重点词语运用
高中英语语法-如何提高阅读速度
高中英语语法-英文数词的巧妙翻译法
高中英语语法-“倒装”考点透析
高中英语语法-学习英语的捷径:一个美国留学生的忠告之三
高中英语语法-高一英语Unit 18考点透视与点拨
高中英语语法-高一英语Unit 13考点透视与点拨
高中英语语法-电影片名翻译的基本原则(二)
高中英语语法-高一英语Unit 15考点透视与点拨
高中英语语法-“自言自语法” 有效提高你的英语口语能力
高中英语语法-高一英语Units 13-15重要语言知识
高中英语语法-专家谈英语学习方法:适合自己的才是最好的
高中英语语法-高一英语Unit 2知识点巩固
高中英语语法-When,where,why引导定语从句“四注意”(一)
高中英语语法-高一英语Unit 15重难点解析
高中英语语法-汉英翻译中新词新语的运用之二
高中英语语法-钟道隆教授和他的逆向英语学习法(三)
高中英语语法-电影片名翻译的基本原则(一)
高中英语语法-如何做好英语课的课前预习
高中英语语法-如何巧学善用英语成语之一
高中英语语法-When,where,why引导定语从句“四注意”(二)
高中英语语法-如何突破英语口语?
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |