题目列表(包括答案和解析)
Unless we spend money spotting and preventing asteroids(小行星) now, one might crash into Early and destroy life as we know it, say some scientists.
Asteroids are bigger versions of the meteoroids(流星) that race across the night sky. Most orbit the sun far from Earth and don’t threaten us. But there are also thousands of asteroids whose orbits put them on a collision course with Earth.
Buy $50 million worth of new telescopes right now. Then spend $10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one, the scientists say, we’ll have a way to change its course.
Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn’t be cheap. Is is worth it? Two things experts consider when judging any risk are: (1)How likely the event is; and (2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500 000 years. Sounds pretty rare-but if one did fall, it would be the end of the world. “If we don’t take care of these asteroids, they’ll take care of us,”says one scientist. “It’s that simple.”
The cure, though, might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday(世界末日) rocks than from a great nuclear fleet set against it,” said a New York Times article.
9.What does the passage say about asteroids and meteoroids?
A.They are heavenly bodies different in composition.
B.They are heavenly bodies similar in nature.
C.There are more asteroids than meteoroids.
D.Asteroids are more mysterious than meteoroids.
10.What do scientists say about the collision of an asteroid with Earth?
A.It is very unlikely but the danger exists.
B.Such a collision might occur once every 25 years.
C.Coilisions of smaller asteroids with Earth occur more often than expected.
D.lt’s still too early to say whether such a collision might occur.
11.What do people think of the suggestion of using nuclear weapons to alter the course of asteroids?
A.It sounds practical but it may not solve the problem.
B.It may create more problems than it might slove.
C.It is a waste of money because a collision of asteroids with Earth is very unlikely.
D.Further research should be done before it is proved applicable.
12.We can conclude from the passage that .
A.while pushing asteroids off course nuclear weapons would destroy the world
B.asteroids racing across the night sky are likely to hit Earth in the near future
C.the worry about asteroids can be left to future generations since it is unlike to happen in our lifetime.
D.workable solutions still have to be found to prevent a collision of asteroids with Earth
In a recently published book, I came across some exercises with interesting names such as fishbone diagrams, lotus flowers and clustering. As I used these exercises in my classes, I noticed that students were interested. They said more and wrote more. They enjoyed expressing their ideas and sharing them in groups. They were no longer passively waiting for the bell , but actively taking part in the lesson. I find that creativity can act as a way to increase participation and improve fluency.
Creativity has become a popular word in recent years. Scholars in arts, psychology, business, education and science are all working to get a deeper understanding of it. Robert J. Stemberg is a creativity specialist and Yale professor of psychology. He defines creativity as “the ability to produce work that is both new (original) and appropriate(applicable to the situation ) ”. this definition is useful, as we want our students to use language in a new way and to use it correctly and properly. Mot scholars say there are two types of creativity: big “C” creativity and small “c” creativity. Big “C” creativity refers to genius level thinking that results in artistic masterpieces and scientific breakthroughs. Small “c” creativity refers to everyday level thinking that can be used in any situation our emphasis is on the latter. While it goes without saying that any of our students could go on to be the next Picasso or Edison, our aim is to help students produce more ideas and use language in a new way.
The underlined words “waiting for the bell ” in the first paragraph probably means______.
A. longing for a phone call B. hoping to have a bell
C. expecting the end of the class D. waiting to speak in the class
It can be inferred from the passage that the author thinks the exercises in the book were _____.
A. popular B. useful C. scientific D. creative
When you use a familiar word in a new way, you are ________.
A creative in the sense of big “C” creativity.
B. creative in the sense of small “c” creativity..
C. not creative in the sense of big “C” creativity..
D. not creative in the sense of small “c” creativity.
The main purpose of the passage is to _________.
A. show how useful the book is.
B, explain what creativity
C. discuss how one can be creative
D. tell what reaching aims at
The most exciting kind of education is also the most personal． Nothing can exceed （超越) the joy of discovering for yourself something that is important to you! It may be an idea or a bit of information you come across accidentally—or a sudden insight, fitting together pieces of information or working through a problem． Such personal encounters are the “payoff” in education． A teacher may direct you to learning and even encourage you in it—but no teacher can make the excitement or the joy happen． That's up to you．
|
| A．will give one encouragement and direction |
| B．are helpful in finding the right information |
| C．are the most valuable part of one's personal education |
| D．will help one to successfully complete school assignments |
| A．to fully develop one's personal abilities |
| B．to use the skills learnt in the classroom |
| C．to prove that one is a productive writer |
| D．to demonstrate how well one can accomplish school assignment |
| A．one should explore new areas in research |
| B．one should trust one's own ability to meet course requirements |
| C．one should consider research paper writing a pleasure, not a burden |
| D．one should use all one's knowledge and skills when doing research |
| A．How to write a research paper． |
| B．The importance of research in education． |
| C．How to make new discoveries for oneself． |
| D．The skill of putting pieces of information together． |
The most exciting kind of education is also the most personal． Nothing can exceed （超越) the joy of discovering for yourself something that is important to you! It may be an idea or a bit of information you come across accidentally—or a sudden insight, fitting together pieces of information or working through a problem． Such personal encounters are the “payoff” in education． A teacher may direct you to learning and even encourage you in it—but no teacher can make the excitement or the joy happen． That's up to you．
|
To some, the thought of having to write an assigned number of pages, often more than ever produced before, is upsetting． To others, the very idea of having to work independently is threatening． But there is no need to approach paper assignment with anxiety, and nobody should view the research paper as an obstacle to overcome． Instead, consider it a goal to accomplish, a goal within reach if you use the help this book can give you．
1.According to the writer, personal discoveries ．
A．will give one encouragement and direction
B．are helpful in finding the right information
C．are the most valuable part of one's personal education
D．will help one to successfully complete school assignments
2.It can be inferred from the passage that writing a research paper gives one chances ．
A．to fully develop one's personal abilities
B．to use the skills learnt in the classroom
C．to prove that one is a productive writer
D．to demonstrate how well one can accomplish school assignment
3.The writer argues in the passage that ．
A．one should explore new areas in research
B．one should trust one's own ability to meet course requirements
C．one should consider research paper writing a pleasure, not a burden
D．one should use all one's knowledge and skills when doing research
4.What will probably follow this passage?
A．How to write a research paper．
B．The importance of research in education．
C．How to make new discoveries for oneself．
D．The skill of putting pieces of information together．
Unless we spend money to spot and prevent asteroids now，one might crash into Earth and destroy life as we know it，say some scientists.
Asteroids are bigger versions of the meteoroids(流星)that race across the night sky. Most orbit the sun far from Earth and don't threaten us. But there are also thousands whose orbits put them on a collision course with Earth.
Buy $ 50 million worth of new telescopes right now. Then spend $ 10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one，the scientists say，we'll have a way to change its course.
Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn't be cheap. Is it worth it? Two things experts consider when judging any risk are: 1) How likely the event is; and 2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500,000 years. Sounds pretty rare-but if one did fall，it would be the end of the world. “If we don't take care of these big asteroids，they'll take care of us,” says one scientist. “It's that simple.”
The cure，though，might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday(毁灭性的) rocks than from a great nuclear fleet set against them，” said a New York Times article.
1.What does the passage say about asteroids and meteoroids?
A. They are heavenly bodies different in composition.
B. They are heavenly bodies similar in nature.
C. There are more asteroids than meteoroids.
D. Asteroids are more mysterious than meteoroids.
2. What do scientists say about the collision of an asteroid with Earth?
A. It is very unlikely but the danger exists.
B. Such a collision might occur once every 25 years.
C. Collisions of smaller asteroids with Earth occur more often than expected.
D. It's still too early to say whether such a collision might occur.
3. What do people think of the suggestion of using nuclear weapons to alter the course of asteroids?
A. It sounds practical but it may not solve the problem.
B. It may create more problems than it might solve.
C. It is a waste of money because a collision of asteroids with Earth is very unlikely.
D. Further research should be done before it is proved applicable.
4.We can conclude from the passage that ________ .
A. while pushing asteroids off course nuclear weapons would destroy the world
B. asteroids racing across the night sky are likely to hit Earth in the near future
C. the worry about asteroids can be left to future generations since it is unlikely to happen in our lifetime
D. workable solutions still have to be found to prevent a collision of asteroids with Earth.
5.Which of the following best describes the author's tone in this passage?
A. Optimistic. B. Critical. C. Objective. D. Subjective.
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