Question

Space is where our future is — trips to the Moon, Mars and beyond. Most people would think that aside from comets(彗星) and stars, there is little else out there. But, since our space journey started we have left so much trash(垃圾) there that scientists are now concerned that if we don’t clean it up, we may all be in mortal(致命的) danger.

The first piece of space junk was created in 1964, when the American satellite Vanguard Ⅰ stopped operating and lost its connection with the ground center. However, since it kept orbiting around the Earth without any consequences, scientists became increasingly comfortable abandoning(抛弃) things that no longer served any useful purpose in space.

It is estimated(估计) that there are now over 500,000 pieces of man-made trash orbiting the Earth at speeds of up to 17,500 miles per hour. The junk varies from tiny pieces of paint chipped off rockets to cameras, huge fuel tanks, and even odd items like the million-dollar tool kit that astronaut Heidemarie Stefanyshyn Piper lost during a spacewalk.

The major problem with the space trash is that it may hit working satellites and damage traveling spacecraft(飞船). Moreover, pieces of junk may collide(碰撞) with each other and break into pieces which fall back to the Earth. To avoid this, scientists have invented several ways for clearing the sky. Ground stations have been built to monitor larger pieces of space trash to prevent them from crashing into working satellites or space shuttles. Future plans include a cooperative effort among many nations to stop littering in space and to clean up the trash already there.

1.What was the first piece of man-made space trash?

A. A camera.B. A tool kit.

C. A broken satellite.D. A fuel tank.

2.Why were scientists NOT concerned about space trash in the beginning?

A. It did not cause any problems.

B. It no longer served any useful purpose.

C. It was millions of miles away from the Earth.

D. It was regarded as similar to comets and stars.

3.Which of the following statements is true about space junk?

A. It is huge, heavy machines.

B. It may cause problems for space shuttles.

C. It floats slowly around the Earth.

D. It never changes position.

4.What has been done about the space trash problem?

A. Ground stations are built to help store the trash properly in space.

B. Many nations have worked together to stop polluting space.

C. Large pieces of space trash are being closely watched.

D. Scientists have cleaned up most of the trash.

Answer

1.C

2.A

3.B

4.C

【解析】

试题分析：文章大意：文章主要介绍太空垃圾给工作中的卫星、正在飞行的宇宙飞船和其他物体所带来的危险。

1. 细节理解题。根据文章第二段第一句The first piece of space junk was created in 1964, when the American satellite Vanguard I stopped operating and lost its connection with the ground center.可知，第一件太空垃圾是一个美国的卫星。故选C。

2. 细节理解题。根据文章第二段中However, since it kept orbiting around the Earth without any consequences, scientists became increasingly comfortable abandoning（抛弃） things that no longer served any useful purpose in space.可知，因为它一直围绕地球转，没产生任何麻烦，所以开始放心地在太空抛弃东西。故选A。

3. 细节理解题。根据文章最后一段第一句The major problem with the space trash is that it may hit working satellites and damage traveling spacecraft(飞船).可知，太空垃圾主要对太空中工作的卫星和正在飞行的飞船产生巨大的威胁。故B正确。

4. 细节理解题。根据文章最后一段中Ground stations have been built to monitor larger pieces of space trash to prevent them from crashing into working satellites or space shuttles.可知，较大的太空垃圾碎片被密切的监视。故选C。

【名师点拨】

推理判断题所涉及的内容可能是文中的某一句话，也可能是某几句话，所以，推理题的答案只能是根据原文表面文字信息一步推出的答案：即对原文某一句话或某几句话所作的同义改写或综合。推理判断题的题干中通常含infer,suggest,imply,conclude indicate等标志性词语。 这种题型主要包括细节判断题、态度观点推断题、写作意图推断题、文章出处判断题和猜测想象推断题。比如，第27小题C推理判断题。根据文章最后一段中Ground stations have been built to monitor larger pieces of space trash to prevent them from crashing into working satellites or space shuttles.可知，较大的太空垃圾碎片被密切的监视。故选C。

考点：考查说明文阅读