题目内容
13.The planet Gliese 581g goes around a star called Gliese 581,which is about 20light-years from Earth.That is about 194trillion(万亿)kilometres-500million times farther away from us than the moon.
A spacecraft traveling at a one-tenth of the speed of light would reach Gliese 581g within about 220years.A human can't live that long,but robotic explorers could make the job easier.However,our fastest spacecraft don't come anywhere near that one-tenth light-speed mark.
At present,scientists don't know what the surface might be like on Gliese 581g.What they know is that the planet is at the sight distance from its star to have liquid water.It's also at the right distance to have an atmosphere that could protect the water if it is on the surface.
Although spacecraft won't be getting there anytime soon,one way to look for life on Gliese 581g is to turn our radio telescopes(望远镜)towards the planet and search for radiation(放射).By studying the radiation,scientists would find out about the chemicals(化学物质)around the planet and discover it Gliese 581g has an atmosphere.If it has one,studying the atmosphere would give us a good idea if the planet has life or not.But it'll probably be many years before we can do this properly.
People have been arguing about whether there is alien life on Gliese 581g.Any discussion about alien life is just guessing at this point,according to its discoverers.
42.What did scientists find in September 2010?A
A.A planet with water. B.A planet similar to the earth.
C.A planet without life. D.A planet near the earth.
43.According to the article,Gliese 581gA.
A.is at the right distance from its star B.moves around the earth
C.is as far away from us as the moon D.can be reached in about 220years
44.Paragraph 5is mainly aboutC.
A.the possibility of living on Gliese 581g
B.the kinds of chemicals around Gliese 581g
C.the way of looking for life on Gliese 581g
D.the aim of studying the radiation on Gliese 581g
45.Which of the following is the best title for the passage above?A
A.Gliese 581g,a Likely Living Planet B.Gliese 581,a Likely Living Planet
C.Gliese 581g and Its Star D.Gliese 581g and Radiation.
分析 主旨大意:科学家在2010年9月发现了一个带有生命迹象的球体,然后介绍了它与地球的距离以及寻找生命的方法.
解答 42、A 细节理解题.根据第一段It has a surface temperature neither too hot nor too cold for liquid(液态)water.Scientists think there is a chance that the planet could have life.可知科学家发现了一颗有水的行星.故选A.
43、A 细节理解题.根据第四段It's also at the right distance to have an atmosphere that could protect the water if it is on the surface.也在适当的距离有一个大气层,保护水表面.可知:the planet is at the right distance from its star.故选A.
44、C 整体理解题.本段主要介绍寻找Gliese 581g上面生命的方法.故选C
45、A 整体理解题.根据原文After spending years searching for a planet with life,scientists may have found one.In September 2010,a team of US scientists discovered an Earth-sized planet called Gliese 581g.可知Gliese 581g是一个可能存在生命体的星球.故选A.
点评 阅读理解题,考生注意通读全文,在理解的基础上,按要求做题,最好能在原文找出出处.
| A. | a 8 years old | B. | an 8 years old | C. | a 8-year-old | D. | an 8-year-old |
| A. | ten-year-old | B. | ten-years-old | C. | ten year old | D. | ten years old |
When Jenny was old enough,I sent her to a kindergarten(幼儿园).On the first morning,Jenny spent hours playing by herself.It seemed that she felt very(41)B.
However,to my joy,Jenny's classmates always (42)Cher,"You got all your spelling words right today!"In fact,her spelling list was the (43)A.Later,she faced a very painful (44)B--at the end of the term,there was a game which had (45)Dto do with physical education.But Jenny was (46)Cin it.
My husband and I were anxious about the day.I wanted to let my child stay home!But my heart wouldn't let me off that easily.So I (47)Ba pale,unwilling Jenny onto the school bus.
At the kindergarten,I was quite worried because of her (48)Aaction,Jenny would probably hold up her team.The game went well until it was time for the sack(麻袋)race.Surely Jenny would find it (49)D.Now each child had to climb into a sack,jump to the finishing line,return and climb out of the sack.I noticed Jenny standing near the end of her line of players.
But as it was her turn to join,a change took place in her (50)C.The tallest boy behind Jenny placed his hands on her waist(腰).Two other boys (51)Din front of her.The moment the player before Jenny stepped out from the sack,the two boys (52)Athe sack suddenly and kept it open while the tall boy lifted Jenny and (53)Cher into it.A girl nearby took her hand and supported her (54)BJenny got her balance.Then she jumped forward,smiling and proud.In the cheers of the teachers,schoolmates and parents,I silently thanked the warm,understanding people in life who made it (55)Dfor my disabled daughter to be like her fellow human beings.Then I finally cried.
| 41.A.excited | B.lonely | C.happy | D.weak |
| 42.A.greeted | B.expected | C.encouraged | D.followed |
| 43.A.easiest | B.longest | C.smallest | D.tidiest |
| 44.A.choice | B.problem | C.result | D.exam |
| 45.A.nothing | B.anything | C.everything | D.something |
| 46.A.forward | B.fast | C.behind | D.up |
| 47.A.threw | B.pushed | C.knocked | D.fixed |
| 48.A.slow | B.quiet | C.quick | D.secret |
| 49.A.stupid | B.simple | C.relaxing | D.difficult |
| 50.A.school | B.family | C.team | D.heart |
| 51.A.ran | B.lay | C.walked | D.stood |
| 52.A.picked up | B.gave up | C.cut up | D.made up |
| 53.A.drove | B.hid | C.put | D.hit |
| 54.A.when | B.until | C.after | D.unless |
| 55.A.popular | B.special | C.necessary | D.possible |
| A. | interesting | B. | boring | C. | difficult | D. | right |