题目内容
Before we went into the museum, we ________ not to touch the things on show.
- A.told
- B.tell
- C.were told
- D.are told
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. 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.
The planet Gliese 581g goes around a star called Gliese 581, which is about 20 light-years from Earth. That is about 194 trillion(万亿)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 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.
【小题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 |
He said that it all came from an experience with his mother that happened when he was two years old. He tried to carry a bottle of milk form the refrigerator. But tried to carry a bottle of milk sprinkled all over the kitchen floor.
When his mother came into the kitchen, instead of complaining about it ,she said , “Robert, what a of complaining about it ,she said, “Robert, what a great and wonderful mess you have made! Well, the terrible thing has already been done . Would you like to get down and play in the milk form a few minutes before we clean it up?”
Indeed, he did. After a few minutes , his mother said ,”You know , Robert , whenever you make a mess like this , you have to clean it up . We could use a sponge or a towel. Which do you prefer?” He chose the sponge and together they cleaned up the milk.
His mother. then said, “You know , what we have here is a failed experiment in how to carry a big milk bottle with two small hands .Let’s go out in the back yard and fill the bottle with water and see if you can discover a way to carry it without dropping it “ The little boy learned that if he held the bottle at the op near the lip(容器的嘴)with both hands, he could carry it without dropping it What a wonderful lesson! At that moment he knew that he didn’t need to be afraid to make mistakes and mistakes were just opportunities for learning something new.
【小题1】What does Stephen Glenn do?
A.A research scientist. |
B.A famous doctor. |
C.A science teacher. |
D.A newspaper reporter. |
A. angry B. patient C happy D. sad
【小题3】_______cleaned up the floor of the kitchen.
A. No one B. The baby-sitter
C. Stephen Glenn and his mother
D, Stephen Glenn's father
【小题4】How did Stephen GIenn learn Io carry a bottle of milk without dropping it?
A.He tried carrying it over and over again. |
B.He experimented by carrying a bottle of water. |
C.He did as what his mother told him to. |
D.His teacher told him. |
Years ago, I lived in a building in a town. There was another building across form mine, and it was only a few meters away. There lived a woman whom I had never met. I could see her sit by the window each afternoon, drinking or reading.
Several months later, I noticed her window was very dirty. Everything was not clear through the window. I wondered why the woman didn’t wash her window.
One sunny morning, I decided to clean up my apartment, including washing my windows. Late in the afternoon when I finished the cleaning, I sat down for a rest by the window. What a surprise! The woman sitting by her window was clearly seen! Her window was clean! Suddenly, I realized I had made a mistake. I was watching her through my dirty window all the time!
That was quite an important lesson for me. Since then, whenever I wanted to judge(判断) someone, I asked myself first, “ Am I looking at him through the dirty window of my heart?” Then I try to clean the window of my own world so that I may see the world clearly.
【小题1】The writer lived in years ago.
A.a hotel | B.a village | C.a town | D.the countryside |
A.in the morning | B.in the afternoon | C.in the evening | D.the whole day |
A.reading | B.cleaning | C.shopping | D.cooking |
A.far | B.broken | C.clean | D.dirty |
A. we should judge ourselves before we judge others
B. we should judge others through the dirty windows
C. we shouldn’t clean the windows often
Everyone is talking about bird flu. Yes, it is a very dangerous illness that could make people very sick. It will be some months still before we have good medicine 1 bird flu. But that doesn’t mean you can’t do anything to prevent(预防)it now. So far, all the people who have caught bird flu have been those who touched sick chickens or their 2 . So it’s a good idea for people 3 living chickens.
“People 4 go to the markets to buy living chickens to eat, but now they have to change that habit(习惯),” said Peter Cordingley, a WHO expert(专家). But if you do touch a sick bird, remember 5 your hands carefully with soap right away . Experts also say having good habits and a healthy body will help you 6 safe from bird flu. For example, do not buy or eat birds that 7 . Do not eat anything that has touched raw(生的) meat. Also, don’t forget to open your windows often and exercise every day. 8 enough sleep is also very important for beating illness. If you feel sick, see a doctor as soon as possible. 9 , no one in China has bird flu. But WHO says children under 12 years old could easily get sick with bird flu. Try to stay away from people who have the flu, and always cover your mouth and nose when you 10 .
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