首页
登录
职称英语
[originaltext] As we all know, cruising in the Southern Ocean isn’t always p
[originaltext] As we all know, cruising in the Southern Ocean isn’t always p
游客
2023-08-04
18
管理
问题
As we all know, cruising in the Southern Ocean isn’t always plain sailing. But as it is becoming important to find better ways of navigating safely and avoiding future collisions because of increasing visitor ships, the Antarctic Polar View project is using satellites to map the sea ice to help ships find the best way in the vast white continent. There are very large lumps of heavy ice in the water which might look beautiful, but I believe you do not want to hit it with a ship, because if it happened your ship would be damaged. Therefore, navigating through it is an important problem, not only in terms of the safety of the ship, but also in terms of the speed of the ship, and the efficiency of the ship. You could have another choice—take a quicker and cheaper route rather than spending an excessive amount of time going through an area of very thick ice. The quickest way to travel is to clear water channels, but it is a difficult task to find these routes.
The area we’re dealing with is absolutely enormous. The only way of monitoring that area of ocean effectively is by using satellites. Therefore, we use a satellite named NVSAT, which is a satellite that collects information and picks up differences in ocean surface roughness and that helps us to see the difference between open water and the sea ice.
Radar allows the Antarctic team to see straight through the clouds down to the surface of the sea. With detailed images, it’s even possible to see cracks in the surface which can lead to dangerous ice falls. Wherever possible we would use helicopters quite a lot and put them up in the air to map the ice and look for where we might find what we call leads, you know, which are large areas of clear water that the ship might be able to move through. But it is certainly a much more difficult and time-consuming operation.
OK. That’s all for today’s talk. Next time, I will share with you more about this mapping project. Thank you!
Questions 23 to 25 are based on the recording you have just heard.
23. What is the Antarctic Polar View project about?
24. Which is a major function of the satellite named NVSAT?
25. What is the disadvantage of using helicopters to help map the ice?
选项
A、It is too expensive.
B、It is not precise.
C、It is dangerous.
D、It is time-consuming.
答案
D
解析
讲话人在原文中提到,只要有可能,他们就会使用直升机来帮助他们绘制冰面地图和寻找合适路线,但是这样做不仅相当困难也很耗时,因此答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/2897890.html
相关试题推荐
[originaltext]ScoresonEnglishtestsareveryimportanttostudentsaround
[originaltext]Theproblemofleisureisnew.Untilveryrecenttimespeople
[originaltext]M:Hello,MissLin.Sogladtoseeyou!W:Oh,no,youaren’t.I’
[originaltext]Theterm"Americandream"iswidelyusedtoday.Butwhatexac
[originaltext]Inpublicspeaking,thewatchwordispreparation.Mostofus
[originaltext]M:Hi,Minnie,howareyoudoing?W:Prettygood.Thanks.Haveyo
[originaltext]M:Hey.HaveyoueverheardoftheOscars?W:Well,Iknowthemq
[originaltext]Goodmorning,IamTedHunter.TodayIamgoingtotalktoyo
[originaltext]Thankyouforcomingtomytalkthisevening.It’snicetose
[originaltext]InBritaintheweatherisnews.Atelevisionweatherforecast
随机试题
注册会计师在审计业务开始时按规定应当开展的初步业务活动包括()。A.针对保持客户
关于Windows操作系统中DHCP服务器的租约,下列说法中错误的是( )。
A.Na B.葡萄糖 C.白蛋白 D.纤维蛋白 E.清蛋白血浆晶体渗透压
患者男性,29岁,因少尿、水肿入院就医,检查诊断为心源性水肿。对该患者应给予A.
下列哪项指标不属于躯体健康测量指标A.身高 B.发病率 C.日常生活活动能力
关于地铁建筑疏散宽度和疏散距离的设计,做法错误的是()。A.站台和站厅公共区内任
患者,男,70岁,素体阴虚蕴热,复感疫毒,致阴虚肺燥,咽喉干痛,干咳少痰,痰中带
正确填写市政公用工程注册建造师签章文件表格的要求有()。A.表格中“致××单位”
下列情形中,不会导致劳动合同无效或者部分无效的有( )。A.以胁迫的手段,使对
砂枕坝体施工前,应根据()等绘制坝体断面砂枕布置图。A.河床地形 B.冲刷情
最新回复
(
0
)