Explorer of the Extreme Deep 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 ahout 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. 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. Woods Hole:美国马萨诸塞州的一个渔村,但同时拥有许多重要研究机构,如:the Marine Biological Laboratory,the Sea Education Association以及the Woods Hole Oceanographic lnstitution。 练习: A A research institute. C A submersible. Which of the following statements is NOT a fact about Alvin? B It has played a key role in various important undersea expeditions D It has been used for more than 40 years. A the earth. C the ocean. In what aspects are the new HOV and Alvin similar? B Speed. D Shape. A Offering better views. C Size. 答案与题解: C 短文第一段的第四、第五句提供了答案 C 本文讨论探索海底世界的潜水装置,所以充满神秘色彩的世界指的就是海洋。 D 第三段最后两句告诉我们,Alvin只有三个窗户,而HOV有五个。最后一段告诉我们,两艘潜水装置的上下活动速度和行进速度有所差别。所以D是正确选择。
乔布斯从前的心腹公开炮轰脸书
炒肉
每日一词∣六保 ensure security in the six areas
我的妹妹
《老友记》推出Central Perk餐具
厕纸终于不用抢了 但是美国的硬币却告急了
总刷社交媒体容易相信"新冠假消息"
聪明的孩子
春天在那里
下课了
第一次做饭
有趣的游戏
老师,我想对您说……
体坛英语资讯:Impressed by how China and Chinese people fight against virus, says Marbury
德国一肉联厂暴发疫情
国内英语资讯:Xi sends congratulatory letter to extraordinary meeting of China-Arab states political parti
开心的一天
给妈妈的贺卡
有趣的一天
放风筝
小实验
国内英语资讯:Hong Kong people look forward to implementation of law on safeguarding national security in
《神兵小将》读后感
体坛英语资讯:Football matches in Albania to resume on June 3
国内英语资讯:Political advisors discuss regulation of food delivery services
国内英语资讯:Xi Focus: Xi eyes more stable, mature China-EU ties in post-pandemic era
国内英语资讯:Chinese mainland reports 27 new confirmed COVID-19 cases
欧洲博物馆的很多文物是从非洲抢来的,非洲想要回去
扫地
母亲节快乐
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |