Read the following passage and mark the letter A, B, C, and D on your answer sheet to indicate the correct answer to each of the question
Space Debris
Once something is considered rubbish, we want to throw it away and forget about it. Yet if we are not careful about where we store it, our garbage could come back to haunt us. On the Earth, poorly discarded garbage can cause land, water, and air pollution. And now, people are starting to learn that space debris can also cause a host of different problems.
Space debris is defined as a collection of objects that orbit the Earth. Space debris can be classified into two categories. One is man-made rubbish, such as old satellites, rockets, and an other machinery left in space after past missions. The other is natural objects, such as meteors that are traveling through space. If you think the man-made garbage doesn't amount to much, guess again. Researchers estimate that there are over 20.000 pieces of large debris floating around in space and approximately 300.000 smaller pieces in orbit as well. Traveling at speeds of up to 17.500 miles per hour, these objects create a great degree of danger for any spaceships when they leave or return to the Earth.
We are lucky to some degree that there haven't been too many accidents caused by space debris as of yet. Still some incidents have occurred. In 1996, a French satellite was damaged after it crashed into debris from an old French rocket. Then in 2009, an old Russian satellite collided with a working US satellite. The end result was an additional 2.000 pieces of space junk that was added to the junk pile.
As the current situation can only worsen, it is now up to the international community to cooperate and create a plan to deal with space debris. For starters, several nations have pledged to take more care with the items they discard in space to cut down on future debris. Researchers are working on devising a way to label space junk, so it can be avoided. Others have proposed more creative techniques to recapture the garbage and discard it on the Earth, or destroy it with lasers.
The nightmare scenario that everyone fears is if the Kessler Syndrome starts to occur. This is when density of garbage becomes so high that it sets off a chain reaction of collisions which would raise the probability of accidents even further. Although there is not long-term solution in place for space debris, nations are starting to understand the seriousness of this problem.
0Câu 17
Space debris is______the Earth.
A. polluting
B.destroying
C. circling
D. assisting
Câu 18
What makes up most of man-made space debris?
A. Home appliances
B.Rocks that were destroyed
C. Foods thrown away by astronauts
D. Equipment from old spaceships
Câu 19
What matches the meaning of the word “haunt" in paragraph 1?
A. return
B.hurt
C. scare
D. benefit
Câu 20
What is the third paragraph mainly about?
A. Accident caused by space debris
B.How nations are dealing with space debris
C. A few way that space debris is helpful
D. How space debris changed the space exploration
Câu 21
What are scientists most worried about with space debits?
A. It will catch fire and burn things.
B.It will cause the prices of spaceships to increase.
C. It will be packed even closer together.
D. It will fall down to the Earth.
Câu 22
What best summarizes the current situation regarding space garbage?
A. Countries arc only just finding out about space debris.
B.Countries know there is a problem but they have no solution.
C. The problem is understood and a long-term solution was made.
D. Most nations still deny that space debris is an issue.
Câu 23
What have been done about the problem of space debris?
A. Scientists have labeled space junk so it can be avoided.
B.The international community has found long-term solutions to the problem.
C. Some creative techniques have been applied to recapture the garbage and discard
D. Some nations have promised to take more care with the matter.
Câu 24
It can be inferred from the passage that_____
A. The number of space accident will increase if nothing is done about the problem
B.any launch of spaceships will set off a chain reaction of collisions
C. meteors will offer a way to solve the problem
D. space debris can also cause different problems on the Earth.
A.
B.
C.
D.
Loga
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