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.These are garbage that comes from rockets，dead satellites and other fragments created when these one collided with another.
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 fast that 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 （大氣）after that time.In the upper parts of the atmosphere it will burn up.
Many scientists are also suggesting different ways to clean up space junk.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 Castronuovo，an Italian space researcher.
"The time to act is now.The longer we leave the problem，the bigger it will become，" he says.
根據(jù)上面的短文內(nèi)容填空。
（1）Rubbish is a big problem not onlynot onlyon planet Earth but also in outer spaceouter space.
（2）BBC News reports that over 22，000 pieces of space junk floatingfloatingaround the Earth.
And they are just the ones that can be seenbe seenfrom the surface of the Earth by telescopes.
（3）The fast moving objects in the space are very dangerous.To make things worse，when two objects in space crash.jye.ai break into many smaller pieces.In 2009，a U.S，satellite hit an old Russian rocketan old Russian rocketthen it broke into 2，000 pieces2，000 piecesof space junk.
（4）To reduce additional space junk，countries have agreed that all new space tools can only stay in space for 25 years25 yearsThey must be built to fall safelyfall safelyinto the earth's atmosphere after that time.
（5）Many scientists also suggest that space junk can be cleaned up in different waysdifferent ways.We know that scientists in Western EuropeWestern Europe are acting to help clean up space junk now according to the article.
【考點】說明文；環(huán)境保護．
【答案】not only；outer space；floating；be seen；an old Russian rocket；2，000 pieces；25 years；fall safely；different ways；Western Europe
【解答】
【點評】
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發(fā)布：2024/9/17 6:0:11組卷：2引用：1難度：0.5
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閱讀以上材料，根據(jù)其內(nèi)容回答其后各個小題。
ArcherySit at the back or on either side of the field.
Keep quiet during the match.Turn off your cellphone or keep it silent.
Do not use the flash on your camera or your phone.
When the athletes are trying to shoot the target（射擊靶子），keep your voice down.
BasketballYou cannot bring drinks in glass bottles.
Keep the cheers down at important moments.Do not use the camera flash.
If you easily get nervous，bring some snacks.Keep your mouth moving to calm you down.
▲Audience（觀眾）should keep off the track（跑道）.Control your pets.
Athletes might look tired and thirsty，but do not hand them water or anything else.
If an athlete falls，do not touch or help him.
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A．On September 8，2023.
B．On September 23，2023.
C．On October 8，2023.
D．On October 23，2023.
（2）What does the underlined word"flash"mean in Chinese？
A．閃光燈
B．外殼
C．屏幕
D．鏡片
（3）What would be the most suitable to replace ▲in the picture？
A．Football.
B．Running.
C．Roller skating.
D．Cycling.
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D．You can't eat anything when you're watching the basketball game.
（5）What is the passage mainly about？
A．Some most popular games.
B．Introduction to some games.
C．The best time to watch games.
D．Rules for watching some games.發(fā)布：2024/12/27 18:30:2組卷：11引用：4難度：0.5 -
3．
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F.Then they can try taking a few moments each day to practise this method of calming down.
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Developing creativity
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Trying meditation（冥想）
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Learning to ride the wave
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