After spending years searching for a planet with life, scientists may have found one. In September 2010, a team of US scientists discovered a planet called Gliese 581g. It has a surface temperature neither too hot nor too cold for liquid（液態(tài)）water. Scientists think there is a chance that the planet could have life.
The planet Gliese 581g goes around a star called Gliese 581, which is about 20 light-years from Earth. That is about 194 trillion（萬億）kilometres －500 million 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 220 years. A human can’t live that long, but robotic explorers could make the job easier. However, our fastest spacec raft 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 right 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（望遠(yuǎn)鏡）towards the planet and search for radiation（放射）. By studying the radiation, scientists would find out about the chemicals（化學(xué)物質(zhì)）around the planet and discover if Gliese 581g has an atmosphere. If it has one, studying the atmosphere would give us a good idea whether 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.
【小題1】What did scientists find in September 2010?
| A．A planet with water. | B．A planet similar to the earth. |
| C．A planet without life. | D．A planet near the earth. |
| 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 220 years |
| 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 |
| 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 |
【小題1】A
【小題2】A
【小題3】C
【小題4】A
解析試題分析：這篇短文主要介紹了科學(xué)家們新發(fā)現(xiàn)的一顆有可能存在生命的星球。
【小題1】根據(jù)第一段In September 2010, a team of US scientists discovered a planet called Gliese 581g. It has a surface temperature neither too hot nor too cold for liquid（液態(tài)）water. 描述，可知選A。
【小題2】根據(jù)第四段What they know is that the planet is at the right distance from its star to have liquid water.描述，可知選A。
【小題3】根據(jù)本段one way to look for life on Gliese 581g is to turn our radio telescopes（望遠(yuǎn)鏡）towards the planet and search for radiation（放射）.描述，可知本段主要講述的是探索這個(gè)星球上的生命的方法。故選C。
【小題4】這篇短文主要介紹了科學(xué)家們新發(fā)現(xiàn)的一顆有可能存在生命的星球。故選A。
考點(diǎn)：科普性說明文閱讀
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| B．can’t find their way in different countries |
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| A．the history of the GPS | B．the introduction of the GPS |
| C．the shape of the GPS | D．the three parts of the GPS |
| A．All GPS devices have electronic maps. |
| B．People in many countries will use the GPS for free. |
| C．The receiver of the GPS contacts at least five of the satellites. |
| D．The GPS will become more and more common in everyday life. |
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1. Express what you think clearly but don't say anything to hurt the other. Begin with "I feel" instead of "You always".
2. Listen carefully to what the other person is saying. Don't stop the other person's words.
3. Keep looking at the other person's eyes when he or she speaks.
4. Try to see the problems on the other person's side.
5. Never put anyone down. Saying things like "You are foolish (愚蠢的)" makes the talk difficult.
6. Try to find a result that makes both people happy.
Peer mediators never decide on the winner. They don't decide who is right or who is wrong. Instead they help disputants to find their own "win-win" result. A "win-win" result can make everyone feel good.
Peer mediators' work is often successful just because it gets disputants to talk to each other. And getting disputants to talk to each other is the first step in finding a "win-win" result.
【小題1】Peer mediators' work is _.
| A．to teach lessons to disputants |
| B．to help find a way to make both disputants happy |
| C．to find out who starts the quarrel |
| D．to give students some special training |
| A．Letting disputants be afraid of peer mediators. |
| B．Letting disputants feel peer mediators are kind. |
| C．Getting disputants to talk to each other. |
| D．Making disputants feel good by telling funny stories. |
| A．disputants will realize they are wrong |
| B．disputants will understand peer mediators better |
| C．it is easy for peer mediators to decide who is right |
| D．it is hard for peer mediators to get a "win-win" result |
| A．All schools have peer mediators. |
| B．Peer mediators are usually students. |
| C．When disputants are speaking, peer mediators can stop their words at any time. |
| D．Peer mediators can make disputants get a "win-win" result every time. |
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