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
考研英语作文范文大学生压力
考研英语作文必备句型表示可能性
考研英语复习资料考研英语作文必备道德类词汇
2013研究生入学考试英语大作文的经典模板
写作好句集锦
考研英语复习资料考研英语高分作文标志
考研英语复习资料考研英语高分作文经典100篇
考研英语(一)大作文模板
考研英语作文范文(2)
经典考研英语作文模板
提高考研英语写作分数的常用词组
考研英语复习资料考研英语小作文模板感谢信
考研英语作文范文私家车问题
考研英语复习资料考研英语大作文模板表作文
考研英语写作在热点范文
考研英语复习资料考研英语作文必备春运类词汇
考研英语复习资料考研英语作文锦囊句子
考研英语作文题目及范文(4)
考研英语小作文针对四点复习
考研英语作文写作指导(二)
考研英语大作文模板
考研英语复习资料写好考研作文需从句子入手
考研英语复习资料考研英语小作文模板求职信
考研英语作文的范文视觉
2013年考研英语写作的高分必备35个句型
考研英语复习资料英语写作必备的294句热点话题句型
考研英语作文题目及范文 (2)
考研英语作文写作指导(一)
考研英语复习资料2013考研英语写作备考方法
20年考研英语精选真题范文与背诵素材
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |