题目内容
In 1961, scientist set up gigantic, sensitive instruments to collect radio waves from the far reaches of space, hoping to discover in them some mathematical pattern indicating that the waves were sent out by other intelligent beings. The first attempt failed, but someday the experiment may succeed.
What reason is there to think that we may actually detect intelligent life in outer space?To begin with, modern theories of the development of stars suggest that almost every star has some sort of family of planets. So any star like our own sun (and there are billions of such stars in the universe) is likely to have a planet situated at such a distance that it would receive about the same amount of radiation as the earth.
Furthermore, such a planet would probably have the same general composition as our planet; so, allowing a billion years or two or three, there would be a very good chance for life to develop, if current theories of the origin of life are correct.
But intelligent life?Life that has reached the stage of being able to send radio waves out into space in a deliberate pattern?Our own planet may have been in existence for five billion years and may have had life on it for two billion, but it is only in the last fifty years that intelligent life capable of sending radio waves into space has lived on earth. From this it might seem that even if there were no technical problems involved, the chance of receiving signals from any particular earth-type planet would be extremely small.
This does not mean that intelligent life at our level does not exist somewhere. There are such an unimaginable number of stars that, even at such miserable possibility, it seems certain that there are millions of intelligent life forms scattered through space. The only trouble is, none may be within easy distance of us. Perhaps none ever will be; perhaps the distances that separate us from our fellow “creatures” of this universe will forever remain too great to be conquered. And yet it is conceivable that someday we may come across one of them or, frighteningly, one of them may come across us. What would they be like, these outside-the-earth creatures?
- 1.
What point is the author making by stating that almost every star has some sort of family of planets?
- A.Sooner or later intelligent beings will be found on one of the stars.
- B.There must be one or two of the planets on which there are no intelligent beings.
- C.There are sufficient planets for there to be one that enjoys the same conditions as the earth does.
- D.One or two billion years later intelligent beings will generate on those planets.
- A.
- 2.
What is the main topic of the passage?
- A.Some probable intelligent life forms on other planets.
- B.Various stages undergone by the intelligent life on other planets.
- C.Grounds for probable existence of intelligent life on other planets.
- D.The possibility of intelligent life existing on our planet.
- A.
- 3.
Which of the following can be inferred from the passage?
- A.An encounter is probable between people from the earth and intelligent beings from another planet.
- B.Though the first attempt failed, scientists did discover the radio waves sent out by other intelligent beings.
- C.Other intelligent beings were able to send our radio waves into space well before the last fifty years.
- D.It is certain that there are millions of intelligent beings scattered in space but only too far away.
- A.
- 4.
According to the author, what is the difference between “we may come across one of them” and “one of them may come across us”?
- A.The earth would be dangerously disadvantaged if it is sought after by possibly much more developed creatures.
- B.It would prove that there are too many outside-the-earth creatures if “one of them comes across us”.
- C.The history of the development of the earth would be proved to be shorter than that of “them” if “they” come across us.
- D.it would prove that the distance in between is not so great as we think if “we come across one of them” someday.
- A.
Task-based reading 任务型阅读
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For centuries people dreamed of going into space. This dream began to seem possible when high-flying rockets were built in the early 1900s.
In 1903 a Russian teacher named Konstantin Tsiolkovsky figured out how to use rockets for space travel. His plan was the first one in rocket science to use correct scientific calculation. About 30 years later, a U.S. scientist named Robert Goddard built the first rockets that could reach high altitudes. During World War II, German scientists built large rockets that could travel very far and carry dangerous explosives. After the war, scientists from Germany went to the United States and the Soviet Union to help those countries build space rockets.
These two countries were soon racing to get to space first. Each of these countries wanted to prove that it was stronger and more advanced than the other one. Both countries also had powerful bombs. People in the United States were worried when the Soviets were first to launch a space satellite, which was called Sputnik. The Soviets were also first to send a person into space. Yury Gagarin orbited the earth in the Vostok I spaceship in 1961.
The US government set a goal for its space program to be the first country to put a person on the Moon. The U.S. space program built a series of Apollo spaceship. These vehicles were powered by huge Saturn 5 rockets. In 1969 Apollo II took three men to the moon successfully. Nell Armstrong became the first person to walk on the Moon.
The Soviets may have lost the race to fly people to the Moon, but they built the first space station in 1971. The United States also built a space station. The space stations allowed people to live and work in space. Then the Soviet Union and the United States cooperated to hook two spaceships together in space. This action ended the "space race". Today a much larger space station, built by several countries together, orbits Earth.
Another new way to go to space is by space shuttle. A space shuttle, first made in the United States in 1981, looks like an airplane. Astronauts who fly spaceships have used shuttles to help put satellites into space.
History of space travel | ||
Time | Events | Information concerned |
Early 1900s | High-flying rockets were built. | It made the ancient dream of going to space possible to come 66) ▲ |
1903 | Konstantin Tsiolkovsky (67) ▲ out a way to use rockets for space travel. | He planned to put correct scientific calculation to use in rocket science. |
Around (68) ▲ | Robert Goddard built new rockets. | The rockets could fly very (69) ▲ in the sky. |
During and after World War II | German scientists built large rockets that could travel very far and carry dangerous explosives. | Germany was ahead of all the other countries in building space rockets and later it (70) ▲ the Soviet Union and the United States |
The Soviet Union and the United States competed to get to space first. | The Soviet Union became the (71) ▲ of the competition when it launched the first satellite and sent the first astronaut into space. | |
1969 | The United States was (72) ▲ in putting a person on the moon. | In one way, it (73) ▲ the Soviet Union by becoming the first country to fly people to the moon. |
1970s | The Soviets built the first space station and was soon followed by Americans. And they finally ended the "space race" by (74) ▲ | Astronauts can live and work in space stations. |
1980s-- | Space shuttles are used as new vehicles for space (75) ▲ . | Shuttles are also used to help put satellites into space. |
Americans who volunteer for the Peace Corps get a chance to help improve lives in developing countries. They also get a chance to learn more about the world, and about themselves. This week this program is celebrating its 50th anniversary.
President John Kennedy established the Peace Corps soon after he took office in 1961. It was the time of the Cold War between the United States and the Soviet Union. The new program gave Americans a chance to answer the call to service that the president made in his inaugural(就职的)speech. “Ask not what your country can do for you,” he said. “Ask what you can do for your country.” Kennedy told Peace Corps volunteers that America’s image in the countries where they were going would depend largely on them.
On August 30th, 1961, the first group of 51 Peace Corps volunteers arrived in Accra, Ghana, to serve as teachers. They had agreed to work for almost no pay. They would spend two years in Ghana helping its people and learning the reality of life in a developing country. Most of the volunteers had just completed college. About half of them taught English or health care. In the 50 years since then, more than 200,000 Americans have served as Peace Corps volunteers. They have worked in 139 countries.
The Peace Corps is a government agency that was created to promote world peace and friendship. There are three goals: First, to help the people of interested countries in meeting their need for trained men and women. Second, to help promote a better understanding of Americans on the part of the people served. And, third. to help promote a better understanding of other people on the part of Americans.
Today, the Peace Corps has more than 8,000 volunteers and trainees in 77 countries. They work in agriculture, economic development, education, the environment and health care. Some work in programs related to youth development.
Sixty percent of current Peace Corps volunteers are women. The average age of a volunteer is 28. But the ages of Peace Corps volunteers range from 18 to 86. Some Americans join the Peace Corps after they retire. Today seven percent of volunteers are over the age of 50. And 19 percent are members of minority groups.
【小题1】Volunteers for the Peace Corps can _______.
A.improve their abilities by learning in some developed countries |
B.travel to many foreign countries to learn more about the world |
C.have an opportunity to help all the people in developing countries |
D.contribute to lives in developing countries and develop themselves |
A.Volunteers served as teachers to work for no pay in Accra, Ghana. |
B.Kennedy established the Peace Corps before he took office in 1961. |
C.Most of the volunteers of the first group had just graduated from college. |
D.America’s image in the foreign countries depends completely on volunteers. |
A.what the Peace Corps is and its steps |
B.why the Peace Corps was created and what are its goals |
C.what role the Peace Corps play in daily life |
D.How the Peace Corps was created and its aims |
A.industry | B.environment | C.education | D.health care |
A.Most of the volunteers for the Peace Corps are women. |
B.Few minority groups joined the Peace Corps. |
C.Half of the retired volunteers joined the Peace Corps. |
D.People of different ages take an active part in the Peace Corps. |