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As space science develops ,man has learned more and more about space .Space is only amazing but also dangerous .While working in space ,spacemen are facing danger as well as success.
Science have found out that radiation (輻射)is the greatest danger to spacemen in space .When spacemen are working in space ,they are in danger of radiation from the sun and other stars,which is bad for their health .The damage done by radiation won’t be discovered until their children or even grandchildren are born.Some special medicine may work a little ,but also really helepful medicine has been found so far.
Space junk is also thought as a great danger to spacemen .It’s reported that there are 9,000 man—made things flying in space.About 30﹪of these are satellites ,10﹪are spaceships ,and the rest are space junk .An explosion(爆炸)in 1996 made a cloud of 300,000 fragments,each at least 4mm in size ,and even a small piece of these knocked against a spaceship window and did some damage .Scientists are watching and reporting any possible danger all the time They are working on helpful ways to do with space junk .
Although space is really dangerous ,it interests everyone on the earth .In the near future ,it may become usual for people to spend a few days in a space hotel .We may even choose do leave the earth and live a space in a few years .So we should care for space and do something to help improve the space environment.
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( )1.Space junk and radiation in space are dangerous to ____
A. spacemen working in space
B. people only on the earth
C. all the people except children.
( ) 2.The underline word “fragments”means_____
A.碎片 B 泡沫 C 煙霧
( )3.——shows the nman__made things in space in the correct way
A B C
( )4.Which of the following about the passage is TRUE?
A. The passage tells us that radiation in space come’s from the sun and other stars
B. Everyone of us can make a trip to space now
C. Scientists have found out ways to solve any problem in space
( )5.The best title of the passage is _____
A. Space Radiation B.Space Danger C.Space Junk
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Hhappiness is for everyone .In fact,happiness is always around you 1__you put your heart into it .When you are in trouble at school ,your friends 2___you ;when you study 3___at your lessons ,your parents are always taking good care of your life and your health ;when you get 4__,your friends will congratulate you ;when you do 5___,people around you will help you to correct it.And when you do something good to 6___,you will feel happy ,too.All these are your happiness .If you notice a bit of them.you can find that happiness is always around you.
Happiness is not the same as money,it is a feeling of your heart .When you are poor ,you can 7___ be very happy ,because you have something else that can’t be bought 8__ money .When you meet with difficulties ,you can say loudly you are very happy ,because you have more chances to challenge 9___.So you cannot always say you are poor and you have bad luck.If you 10___ every chance you get ,you can be a happy and lucky person.
( )1.A.if B.whether C.though
( )2.A.will help B.help C.helping
( )3.A.hardly B.careless C.hard
( )4.A.succee B.success C.successfu
( )5.A.nothing wrong B.something wrong C.wrong something
( )6.A.others B.the others C.another
( )7.A. too B. also C.either
( )8.A.use B.with C.on
( )9.A. you B.yourself C.yours
( )10.A. make B.take C.took
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Which stress of the following words is different ?
。.realize B.maybe C.computer
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We did a survey of 200 students about how to spend their holiday .The picture on the students who like traveling is ____less than who like exercising.
A.106
B.53
C.63
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In order to make our school life happier and much more meaningful ,we are supposed to ______.
① listen to teachers carefully in class
② laugh at others when they do something wrong
③ take part in more activities
④ listen to MP3 as much as we like
⑤ help those who are in trouble.
A.①②③ B.①④⑤ C .①③⑤
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Never waste time wondering if you ____good marks,if you try your best to work hard ,you _____it
A.will have ,will make
B.have,will make
C.will have ,make
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It is something that everyone of us knows ____to do.
A.what B.which C.how
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This is the park ____scenery attracted me most when I saw it for the first time.
A.whom Bwho C.whose
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Could you well me ______?
A.what’s the matter with Tom
B.what the matter with Tom is
C.what the matter with is Tom
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Excuse me !Where is Jim? He _____to Shanghai for business.He will be back next week.
A.has been B.has gone C.went
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