英语 英语 日语 日语 韩语 韩语 法语 法语 德语 德语 西班牙语 西班牙语 意大利语 意大利语 阿拉伯语 阿拉伯语 葡萄牙语 葡萄牙语 越南语 越南语 俄语 俄语 芬兰语 芬兰语 泰语 泰语 泰语 丹麦语 泰语 对外汉语

托福听力荟萃 29

时间:2021-04-20 05:56来源:互联网 提供网友:nan   字体: [ ]
特别声明:本栏目内容均从网络收集或者网友提供,供仅参考试用,我们无法保证内容完整和正确。如果资料损害了您的权益,请与站长联系,我们将及时删除并致以歉意。
    (单词翻译:双击或拖选)

Not long ago, some of you may have read about a team of mountain-climbing scientists who helped to ______ the ______ of the highest mountain in the world: Mt. Everest. Of course, the elevation1 of Mt. Everestwas determined2 many years ago, using traditional surveying methods. But these scientists wanted to make a more precise measurement using a new method that ______recent advances in technology. It's called the ______. The Global Positioning System uses 24 satellites that circle the Earth. Each of these satellites is constantly sending out signals. And each signal contains important information that can be used to determine the ______ , ______, and elevation of any pointon the Earth's surface. Well, in order to use this system to calculate Mt. Everest's elevation, scientists needed to put a special ______ on its ______ to receivesignals from the satellites. The problem with this was that, in the past, the receivers were much too heavy for climbers to carry. But now these receivers have been reduced to about the size and weight of a handheld telephone, soclimbers were able to take a receiver to the top of Everest and, from there, to______ the satellite system signals that would allow them to determine the precise elevation. And it turns out that the famous peak is actually a few feet higher than was previously3 thought.

 

 

【填空答案】

recalculate: v. 重新计算

elevation: n. [C]海拔

takeadvantageof: 利用

GlobalPositioning System: 全球定位系统

longitude4: n. [U]经度

latitude5: n. [U]纬度

receiver: n. [C]接收器

summit: n. [U]定点

access: v. 接近,进入,使用

【听力原文】

Not long ago, some of you may have read about a team of mountain-climbing scientists who helped to recalculate the elevation of the highest mountain in the world: Mt. Everest. Of course,the elevation of Mt. Everestwas determined many years ago, using traditional surveying methods.

But these scientists wanted to make a more precise measurement using a new method that takes advantage of recent advances in technology. It's called the Global Positioning System.

TheGlobal Positioning System uses 24 satellites that circle the Earth. Each of these satellites is constantly sending out signals. And each signal contains important information that can be used to determine the longitude, latitude,and elevation of any point on the Earth's surface.

Well,in order to use this system to calculate Mt. Everest'selevation, scientists needed to put a special receiver on its summit to receive signals from the satellites. The problem with this was that, in the past, the receivers were much too heavy for climbers to carry. But now these receivers have been reduced to about the size and weight of a handheld telephone, so climbers were able to take a receiver to the top of Everest and, from there, to access the satellite system signals that would allow them to determine the precise elevation. And it turns out that the famous peak is actually a few feet higher than was previously thought.


点击收听单词发音收听单词发音  

1 elevation bqsxH     
n.高度;海拔;高地;上升;提高
参考例句:
  • The house is at an elevation of 2,000 metres.那幢房子位于海拔两千米的高处。
  • His elevation to the position of General Manager was announced yesterday.昨天宣布他晋升总经理职位。
2 determined duszmP     
adj.坚定的;有决心的
参考例句:
  • I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
  • He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
3 previously bkzzzC     
adv.以前,先前(地)
参考例句:
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
4 longitude o0ZxR     
n.经线,经度
参考例句:
  • The city is at longitude 21°east.这个城市位于东经21度。
  • He noted the latitude and longitude,then made a mark on the admiralty chart.他记下纬度和经度,然后在航海图上做了个标记。
5 latitude i23xV     
n.纬度,行动或言论的自由(范围),(pl.)地区
参考例句:
  • The latitude of the island is 20 degrees south.该岛的纬度是南纬20度。
  • The two cities are at approximately the same latitude.这两个城市差不多位于同一纬度上。
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎点击提交分享给大家。
------分隔线----------------------------
TAG标签:   托福  听力
顶一下
(0)
0%
踩一下
(0)
0%
最新评论 查看所有评论
发表评论 查看所有评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:
听力搜索
推荐频道
论坛新贴