科目: 来源: 题型:
3. Amy made such (迅速的) progress that her teacher praised her in front of the whole class.
查看答案和解析>>
科目: 来源: 题型:
Researchers have discovered the first Earthsized planet. It was first marked by scientists using NASA’s Kepler telescope (望远镜) ,so it’s called Kepler-186f. It lies about 500 light years from the Earth and goes around its star. The planet is the right distance from its star for water: not too close and not too far. Water is one important condition that scientists guess is necessary for life. So it could have water and possible life. It’s called a true Earth cousin.
“This planet is an Earth cousin,not an Earth twin ,” said Barclay,who is among a team of scientists reporting on the discovery in the magazine Science this week.
“It’s very exciting to find a planet similar to the Earth”’ Barclay said. “It’s not easy work because things change as we get more measurements. ”
Scientists don't know anything about the air of Kepler-186f,but it will be a task for future telescopes that can study for chemicals that have something to do with life.
“It’s possible for life to live on this planet,but that doesn’t mean there is life on it ,” Barclay said.
So far,scientists have found nearly 1 ,800 planets in the universe.
“The past year has seen a lot of progress in the search for Earthlike planets. Kepler-186f is very important because it is the first planet that is the same temperature and is almost the same size as the Earth ,” scientist David Charbonneau wrote in an email.
() 1. Researchers have already found about planets now.
A. 500 B. 186 C. 1,800 D. 3,008
() 2. Which of the following about Kepler-186f is NOT true according to the passage?
A. It could have water and is possible for life to live on,so there is life on it.
B. It5s almost as hot as and as large as the Earth.
C. In the future,scientists will study the air of it by telescope.
D. It’s an Earthlike planet.
() 3. We can probably read this article in.
A. a storybook B. a newspaper C. a textbook D. a sports magazine
() 4. What is the best title for the passage?
A. Space research
B. Journey to space
C. Is there possible life on Kepler-186f?
D. Scientists discover a most Earthlike planet
查看答案和解析>>
科目: 来源: 题型:
The worst traveller in the world was Paul of San Francisco. Once he f 1 from theUSto his hometown inItalyto see someone at home. The plane made a onehour stop to get oil at an airport in New York. Paul thought he was in Rome,s 2 he got off the plane.
When nobody was there to meet him,Paul thought maybe the heavy t 3 made his friends late. While looking for the address,Paul found that the old “Rome” had changed a lot. He found many high m 4 buildings instead of old ones. He also found that many people spoke English instead of Italian and that main street signs were w 5 in English.
Paul knew very 16 English. So he asked a policeman in Italian the way to the bus station. He happened to meet a policeman who was also born inItalyand answered him in the same 1 7 After Four hours,travelling around on a bus,the driver handed him over to a 8 policeman. But this time,the policeman could only speak English. So Paul asked the policeman why the Rome police employed (雇佣) so many people who spoke English as policemen.
Paul didn’t b 9 he was in New York when he was told so. To get him on a plane toItaly,he was s 10 to the airport in a police car.
1. 2. 3. 4. 5.
6. 7. 8. 9.10.
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com