《2025年课堂作业武汉出版社九年级英语上册人教版》

B
Many people know that rubbish is a big problem on planet Earth.What
many people don't know is that junk has become a problem in outer space too.
According to BBC News,there are more than 22,000 pieces of space junk
floating around the earth.And these are just the things that we can see from
the surface of the earth by telescopes.There are also millions of smaller pieces
of junk that we can't see.
Objects, like bits of old space rockets or satellites,move around the planet
at very high speeds,so even a very small piece can break important satellites or
become dangerous to astronauts.If the tiniest piece of junk crashed into a
spaceship,it could damage the vehicle.
To make things worse,when two objects in space crash,they break into
many smaller pieces.For example,when a U.S.satellite hit an old Russian
rocket in 2009,it broke into more than 2,000 pieces,increasing the amount of
space junk.
To reduce additional space junk,countries have agreed that all new space
tools can only stay in space for 25 years at most.Each tool must be built to fall
safely into the earth's atmosphere after that time.In the upper parts of the
atmosphere,it will burn up.
★ In England scientists are testing a metal net that can be fired into
space junk. The net catches the junk and then pulls it into the earth's
atmosphere to burn up.The Germans are building robots that can collect pieces
of space junk and bring them back to Earth to be safely destroyed.
“ The problem is becoming more challenging because we're sending more
objects into space to help people use their mobile phones and computers,” says
Marco Castro nuovo,an Italian space researcher.“ The time to act is now.The
longer we leave the problem,the bigger it will become,” he says.
56.What does the underlined word “ these ” in Paragraph 2 refer to?
A.Telescopes. B.Satellites.
C.Pieces of space junk. D.BBC news reports.
57.Why is space junk considered a problem?
A.It burns up after it re-enters the atmosphere.
B.It often stops the view of telescopes on Earth.
C.It could force new space tools to travel at slower speeds.
D.It may crash into other space tools causing damage or death.
58.Countries want future space tools to be able to fall back into the earth's
atmosphere so that ______.
A.the tools can be reused later
B.the tools don't become space junk
C.the earth's atmosphere can stay clean
D.the effects of space flight can be studied
59.Which of the following can be put in ★ ?
A.Some people don't understand why we need to remove space junk.
B.Many scientists also suggest different ways to clean up space junk.
C.The problem is getting more and more serious and difficult to solve.
D.With the efforts of people all over the world,the problem has been solved.
60.In which SECTION of the newspaper would you probably read this article?
A.ENVIRONMENT. B.LOCAL NEWS.
C.EDUCATION. D.FASHION.

答案： 56.C 57.D 58.B 59.B 60.A