20.Think stars don't move?Think again!When you look into the sky at night,the stars may appear to stay in the same place.But stars are always on the move-they're just so far away that the motion is hard to see.
But some stars move in ways that appear too strange to be real.In 2005,astronomer Warren Brown found one of these space oddities(奇特,怪事).It was-located on the outer edge of the Milky Way,the galaxy we live in.The star was speeding away like nothing he'd ever seen.
"It seemed absurd (荒谬的,荒诞的).No star in the galaxy has a speed like that,"Brown remembers."I thought,oh my goodness,I have something kind of special here."
No one had ever seen a star like this one.What does a scientist do when the results don't make sense?
Brown didn't give up.Instead,he kept looking.And he kept finding more of these strange and speedy stars,called hypervelovity stars.Hyper means"above"and velocity has to do with speed.He and his team just found six more of these"above speed"stars,bringing the total to 16.And,he says,he's found even more,and is just waiting for the scientific community to confirm them.

51.If you look at the stars in the sky,they often appearB.
A.movable all the time                
B.still in one place
C.moveable sometimes                
D.still only for a while
52.In 2005,astronomer Warren Brown foundA.
A.a star was speeding away very fast     
B.a star was moving away very slowly
C.some stars were not real             
D.some stars were not in the Milky Way
53.Which of the following is TRUE?C
A.Stars never move at all              
B.No star in the galaxy has a fast speed.
C.It's hard to see the stars moving.
D.Brown has never seen something special.
54.The underlined word"hypervelocity"in the last paragraph probably mean."B"
A.均速的         
B.超速的       
C.超重的        
D.超常的
55.The writer writes this passage to tell usC.
A.something about an astronomer       
B.where the Milky Way is
C.something about the speedy stars      
D.how scientists do their research.
19.如今,在我们身边,父母均在外打工的留守儿童比比皆是.关注留守儿童(left-behind children),构建和谐社会的重要内容.关注留守儿童,要靠全社会的共同努力.你认为留守童面临的主要问题有那些?为了解决留守儿童的问题,请你向当地政府提建议:提示:1)缺乏父母的关爱(be short of love),性格孤僻(lonely),学习压力大、自卑.2)缺乏安全保障,缺乏 家庭关爱(families'care),容易犯错误甚至犯罪(do some thing against the laws).
建议:1)学校建立留守儿童 心里咨询室(Psychological Counseling Room),老师应该把爱播撒到每一个留守儿童的心田.2)政府利用节假日建立 留守儿童家长学校( parents'school for these children). 3)社会各界开展与留守儿童 一帮一结对子的活动(hand-in-hand activity).4)父母尽可能回到孩子身边,给孩子生活上和学习上的帮助和关爱.
表达要求:语言流畅、书写规范、卷面整洁、字数不少于80个.
Dear Mayor:
I'm a middle school student.I'm writing to tell you something around us.Nowadays,there are many-left-behind children whose parents work away from their hometowns.Most of them are from the countryside,you know,they have many problem.They are always lonely and stressed out because they are short of their parents'love.At the same time,they are easy to make mistakes even do some thing against the laws,because they're short of their families'care.
How to solve their problems?In my opinion,school should set up PsychologicalCounselingRoom andthe teacher should put love into every left-behind children's heart. The government can set up a parents school for these children on holidays,you can organize"hand-in-hand"activity to call on more people to help them.You can also raise money to donate to these children.As the song says:"If everyone gives their love,the world will be better."It's very important for us to pay more attention to these children if we want to build a harmonious society. Above all,the parentsare supposed togo back to be with their children to give help and care to them as possible as they can.Best wishes to you!.
16.As an American writer,Mark Twain,once said,"Everybody talks about the weather,but nobody(36)C anything about it."It is true that everybody talks about the weather.Many people begin their talks(37)Bsaying:"Isn't it a nice (38)A?""Do you think it will rain?""I think it's going to snow."
Many people think they can tell (39)D the weather is going to be like.But they (40)D ever agree with each other.One man may say,"Do you see how cloudy it is in the east?It's going to rain tomorrow."Another man(41)Asay,"Yes,it's cloudy in the east.We are going to have fun weather tomorrow."
People often look for the weather they want.When a farmer needs water,he looks for something to tell him it's going to rain and he won't believe(42)B else.When friends have a picnic,they are so (43)Dthe weather is going to be fine very (44)C that they still sit eating their lunch while it is raining.
Almost everyone listens to what the weatherman says.But he doesn't always tell us what we want,and sometimes he makes a mistake.Still he is (45)Amost of the time.

36.A.doB.didC.doesD.done
37.A.throughB.byC.acrossD.in
38.A.dayB.weatherC.thingD.hour
39.A.howB.whenC.whereD.what
40.A.neverB.allC.almostD.hardly
41.A.willB.wouldC.canD.could
42.A.somethingB.anythingC.everythingD.nothing
43.A.trueB.certainlyC.surelyD.sure
44.A.slowlyB.muchC.quicklyD.quietly
45.A.rightB.wrongC.mistakenD.all right
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