英语专四 新闻听力 news 4-1-3

 新闻

Questions 25 to 27 are based on the following news.

(25) An estimated 500，000 piece of debris¹ litter the Earth’s orbits as a result of man’s exploration of space. Some satellites have been hit by fast-moving pieces of junk. The remains² of old rockets can be the size of a bus, while other fragments are simply tiny flecks³ of paints.

(26) An Australian company，Electro Optic Systems，has received a 3,5000,000- dollar government grants to develop the world’s first automated⁵> high-precision，laser tracking technology. It would replace existing radar⁶ networks that currently monitor that pat of space. The goal is to track small objects with great accuracy.

Dr. Craig Smith, the chief executive of Electro Optic Systems, says laser beams fired from the grounds could protect astronauts and satellites by targeting space junk that travels at potentially devastating⁷ speeds.

“They are all hurtling around in space at 36，000 kilometers per hour and so even there like a one millimeter piece of space junk can destroy or damage a satellite, cause it all comes from either dead satellites, satellites which have broken up, satellites which had fuel left in them and exploded. It's really pollution from our own use of space. Over the last 50 years we’ve been a bit careless, just as we’ve been careless with our oceans and rivers over centuries and polluted them. Now we’ve done it to space as well and created our own problem because all this stuff is man-made. ”

(27) The laser tracking system would work by giving space craft and satellites, which are able to be maneuvered，time to move out of the way of an incoming chunk⁸ of debris.

The Australian government said the technology was part of the country's “proud history” in space science and research. The Canberra based team says it’s received interest from around the world. Its ultimate aim is to build a series of laser tracking stations in various countries to provide a defensive⁹ shield for activity in space.

 

题目

News 1

25. An estimated pieces of debris litter the Earth’s orbits as a result of man’s

exploration of space.

A. 1,000,000 B. 500,000 C. 5,000,000 D. 10,000,000

26. The Australian company has received a 3，500，000-dollar government grants to

develop the world’s first ，high-precision, laser tracking technology.

A. automatic B. automate⁴ C. autonomous¹⁰ D. automated

27. How does the laser tracking system work?

A. It uses laser to destroy the space junk.

B. It uses laser beams to shoot the space junk down.

C. It gives space craft and satellites tie to move out of the way of an incoming chunk of debris.

D. It use laser to lead the way for space craft and satellites.

 

答案解析

News 1

25. B 细节题。 新闻中说的是half a million，故选B。

26. D 细节题。 本题考查听者对科技类词汇的掌握，新闻中说的是automated，故选D。

27. C 细节题。新闻中说该系统的工作原理是，给予可操控的太空飞船和卫星足够时间 ，以便躲开迎面而来的残骸碎片，故选C。

 

1 debris   

n.瓦砾堆，废墟，碎片

参考例句：

• After the bombing there was a lot of debris everywhere.轰炸之后到处瓦砾成堆。
• Bacteria sticks to food debris in the teeth,causing decay.细菌附着在牙缝中的食物残渣上，导致蛀牙。

2 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。

3 flecks   

n.斑点，小点( fleck的名词复数 )；癍

参考例句：

• His hair was dark, with flecks of grey. 他的黑发间有缕缕银丝。
• I got a few flecks of paint on the window when I was painting the frames. 我在漆窗框时，在窗户上洒了几点油漆。 来自《简明英汉词典》

4 automate   

v.自动化；使自动化

参考例句：

• Many banks have begun to automate.许多银行已开始采用自动化技术。
• To automate the control process of the lathes has become very easy today.使机床的控制过程自动化现已变得很容易了。

5 automated   

a.自动化的

参考例句：

• The entire manufacturing process has been automated. 整个生产过程已自动化。
• Automated Highway System (AHS) is recently regarded as one subsystem of Intelligent Transport System (ITS). 近年来自动公路系统(Automated Highway System,AHS)，作为智能运输系统的子系统之一越来越受到重视。

6 radar   

n.雷达，无线电探测器

参考例句：

• They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
• Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。

7 devastating   

adj.毁灭性的，令人震惊的，强有力的

参考例句：

• It is the most devastating storm in 20 years.这是20年来破坏性最大的风暴。
• Affairs do have a devastating effect on marriages.婚外情确实会对婚姻造成毁灭性的影响。

8 chunk   

n.厚片，大块，相当大的部分（数量）

参考例句：

• They had to be careful of floating chunks of ice.他们必须当心大块浮冰。
• The company owns a chunk of farmland near Gatwick Airport.该公司拥有盖特威克机场周边的大片农田。

9 defensive   

adj.防御的；防卫的；防守的

参考例句：

• Their questions about the money put her on the defensive.他们问到钱的问题，使她警觉起来。
• The Government hastily organized defensive measures against the raids.政府急忙布置了防卫措施抵御空袭。

10 autonomous   

adj.自治的；独立的

参考例句：

• They proudly declared themselves part of a new autonomous province.他们自豪地宣布成为新自治省的一部分。
• This is a matter that comes within the jurisdiction of the autonomous region.这件事是属于自治区权限以内的事务。