A computer program that could help catch and ...

A computer program that could help catch and even translate messages from aliens in outer space has been developed by a British scientist.

If aliens are discovered one day, scientists fear their language may make it impossible to understand them. But John Elliott of Leeds Metropolitan University in Britain has come up with a program that can figure out the structure(结构) of their language. He thinks that’s the first step in understanding what they are saying.

Dr Elliott’s program would compare an alien language to a database(数据库) of 60 different languages in the world to look for a similar structure. He believes that even an alien language will have its won structure. “Language has to be structured in a certain way, or it will be hard to use,” he told New Scientist Magazine.

Research has shown that it is possible to know if a signal(信号) carries a language rather than a picture or music. Dr Elliott has gone a step further by finding a way to pick out what might be words and sentences. Because languages have different word orders, Dr Elliott has set up a library of the sentence structures of 60 human languages.

If a message is received from outer space, it could be compared against this database. Scientists would then be able to see if it’s similar to any human language, or a mix of the languages.

However, Dr Elliott also said that in order to translate what the aliens are actually saying, it may still be necessary to have a “code(密码) book”.

1.Why did Dr Elliott come up with the program?

A.To learn more about outer space. B.To develop a new language.

C.To help translate messages from aliens. D.To compare an alien language to human languages.

2.According to Dr Elliott, what’s the first step of understanding an alien language?

A.Coming up with a program B.Knowing its structure

C.Understanding aliens D.Discovering aliens

3.What does Paragraph 4 mainly tell us?

A.A way to make the program work.

B.Dr Elliott’s findings about different kinds of languages.

C.Three important functions of the program.

D.The number of sentence structures of human languages.

4.How does the program work when it receives a message from aliens?

A.Mix the message with 60 human languages.

B.Translate the message and send it to the database.

C.Pick out the sentence structure and translate it.

D.Compare the message to the database of 60 human languages.

5.What can we infer from the story?

A.Not all languages have their own structures.

B.To translate alien languages, there is much work to do.

C.The structure of alien languages is similar to that of human languages.

D.Alien languages are signals carrying pictures and music.

九年级英语阅读单选简单题查看答案及解析

A computer program that could help catch and ever translates from aliens in outer space has been started by a British scientist.

If aliens are discovered one day, scientists fear their language may make it possible to understand them. But John Elliott of needs Metropolitan University in Britain has come up with a program that can figure out the structure(结构)of their language. He thinks that’s the first step in understanding what they are saying.

Dr.Elliott’s program would compare an alien language to a database(数据库)of 60 different languages in the world to look for a similar structure. He believes that even an alien language will have its own structure.Language has to be structured in a certain way, or it will be harder to use,he told New Scientist magazine.

Research had shown that it is possible to know if a signal(信号)carries a language rather than a picture or music. Dr.Elliott has gone a step further by finding a way to pick out what might be words and sentences. Because languages have different word orders, Dr.Elliott has set up a library of the sentence structures of 60 human languages.

If a message is received from outer space, it could be compared against this database. Scientist would then be able to see if ti’s similar to any human language, or a mix of the language.

However, Dr.Elliott also said that in order to translate what the aliens are actually saying, it may still be necessary to have a code book.

1.Why did Dr.Elliott come up with the program?

A. To learn more about outer space.　　 B. To develop a new language.

C. To help translate the messages for aliens.　　 D. To compare an alien language to human languages.

2.According to Dr.Elliott, what’s the first step of understanding an alien language?

A. Coming up with a program.　　 B. Knowing a structure.

C. Understanding aliens.　　 D. Discovering aliens.

3.What does paragraph 4 mainly tell us?

A. Some necessary conditions for making the program work.

B. Dr.Elliott’s findings about different kinds of languages.

C. Three important functions of the program.

D. The number of sentence structures of human languages.

4.How does the program work when it receives a message from aliens?

A. Mix the message with 60 human languages.

B. Translate the message and send it to the database.

C. Pick out the sentence structure and translate it.

D. Compare the message to the database of 60 human languages.

5.What can we infer from the story?

A. Not all languages have their own structure.

B. The structure of alien languages is similar to that of human languages.

C. To translate alien languages, there is much work to do..

D. Alien languages are signals carrying pictures and music.

九年级英语阅读单选困难题查看答案及解析

Even in early times, people could realize the importance of dreams and knew that dreams gave meaning to life. Every great achievement has 1. b____________ the result of years of dreaming. If a person has a dream and holds fast to it, he or she will 2.f____________ a way to bring it into reality.

Children do not have much experience or knowledge. However, they are natural dreamers. We should not laugh at them for being naive. With their rich imagination, they will come up with fantastic dreams. History is full of3.e____________. Many great men were dreamers when they were children. One such dreamer was Thomas Edison. He used to be ostracized (排斥) when he was in primary school, 4.b____________ his achievements were greater than everyone else's in his time.

Teenagers and young people should also be 5.e____________ to dream. The world is full of successful teenagers and young people. They dreamt big and their dreams changed their lives and even the world. Steve Jobs and Bill Gates are the good examples. They have developed technology and brought great progress to human besides making money for themselves.

Older people should believe that human mind 6.i____________ never too old to make dreams turn into reality. Colonel Saunders7. r____________ his dreams at the age of 67 and set up the biggest fried chicken company (KFC) in the world. Chu Shijian, the 85-year-old billionaire, is8.b____________ the model which wants to be true entrepreneurs(企业家).

To dream is a wonderful ability 9.w____________ can lead to wonderful results. Olympic records were 10. b____________ by players who were brave enough to dream. No one is too young or too old to dream and to make dreams come true.

九年级英语单词拼写中等难度题查看答案及解析

Even in early times, people could realize the importance of dreams and knew that dreams gave meaning to life. Every great achievement has1.b____________ the result of years of dreaming. If a person has a dream and holds fast to it, he or she will 2. f____________ a way to bring it into reality.

Children do not have much experience or knowledge. However, they are natural dreamers. We should not laugh at them for being naive. With their rich imagination, they will come up with fantastic dreams. History is full of3.e___________. Many great men were dreamers when they were children. One such dreamer was Thomas Edison. He used ostracized (排斥) when he was in primary school, 4.b____________ his achievements were greater than everyone else's in his time.

Teenagers and young people should also be5. e____________ to dream. The world is full of successful teenagers and young people. They dreamt big and their dreams changed their lives and even the world. Steve Jobs and Bill Gates are the good examples. They have developed technology and brought great progress to human besides making money for themselves.

Older people should believe that human mind 6.i____________ never too old to make dreams turn into reality. Colonel Saunders 7. r____________ his dreams at the age of 67 and set up the biggest fried chicken company (KFC) in the world. Chu Shijian, the 85-year-old billionaire, is 8.b____________ the model which wants to be true entrepreneurs(企业家).

To dream is a wonderful ability 9. w____________ can lead to wonderful results. Olympic records were 10.b____________ by players who were brave enough to dream. No one is too young or too old to dream and to make dreams come true.

九年级英语单词拼写中等难度题查看答案及解析

It’s a safe bet that a robot made your car and made your computer. Pretty soon, they could be making your bed and breakfast too.

Increasingly, engineers are saying that robots are going to move out of research departments and into your home. Companies including Sony and General Electric are working on designs for small robots. Products like the Roomba, a robot that can clean floors, are flying off the shelves.

What’s behind this new robot revolution? It’s partly a matter of technology. Devices that can recognize and respond to a human voice have been developed. There are now a few different ways for robots to move around. They can walk, crawl or ride on wheels. Robots are being made smaller and smaller. They are also becoming more and more energy efficient.

A bigger part of the story is on the demand side. From the day the television remote control was invented, people around the world have searched for new ways to be lazy. Take into consideration that more and more people can afford robots, and the time seems ripe to introduce robots to the average family.

To be sure, robots that walk on two legs and talk like people are still a long way off. However, robots that do basic housework such as cleaning or gardening are sure to come out soon. One thing is certain---when these robots do come to our homes, it will change things forever.

1.According to the passage, robots can do the following things EXCEPT________.

A. cleaning floors　　 B. making cars　　 C. talking like people　　 D. making computers

2.Which of the following is TRUE according to the passage?

A. Smaller robots are less energy efficient.　　 B. Roomba has been out of date

C. People will become lazier than before.　　 D. People’s demand contributes to new robots

3.The underlined part in the 2nd paragraph probably means________.

A. new robots will soon come into people’s homes.　　 B. new robots can fly by themselves .

C. robot products are cheaper and cheaper　　 D. new robots have more functions than old ones

4.What is the main idea of this passage?

A. Robots will soon be on sale　　 B. Robots are in great demand

C. Robots are coming into our families.　　 D. Robots help us a lot

九年级英语阅读单选困难题查看答案及解析

Even in early time, people could realize the important of dreams and knew that dreams gave meaning to life. Every great achievement has been the result of years of dreaming. If a person has a dream and holds fast to it, he or she will find a way to bring it into reality (现实).

Children do not have much experience or knowledge. However, they are natural dreamers. We should not laugh at them for being naïve. Many great men were dreamers when they were children. One such dreamer was Thomas Edison. He used to be ostracized (排斥) when he was in primary school, but his achievements were greater than everyone else’s in his time.

Teenagers and young people should also be encouraged to dream. The world is full of successful teenagers and young people. They dreamt big and their dreams changed their lives and even the world. Steve Jobs and Bill Gates are the good examples. They have developed technology and brought great progress to human besides making money for themselves.

Older people should believe that it is never too late to dream and that human mind is never too old to make dreams turn into reality. Colonel Saunders realized his dreams at the age of 67 and set up the biggest fried chicken company (KFC) in the world.

To dream is a wonderful ability which can lead to wonderful results. Olympic records were broken by players who were brave enough to dream. No one is too young or too old to dream and to make dreams come true.

1. People who ______ could probably realize their dreams.

A. find a way to dream                        B. dream and hold fast to them

C. get the meaning of life                    D. have very good school results

2. Young people should be encouraged to dream because ______.

A. their dreams are natural

B. they are greater than everyone else

C. they have much knowledge

D. their dreams might change the world

3. What does the example of Colonel Saunders show us?

A. Setting up a big company is a wonderful ability.

B. Developing technology can bring great progress.

C. Even older people can make their dreams come true.

D. People should be brave enough to dream when they are young.

4. The underlined word “naive” in the passage means “______” in Chinese.

A. 逆反的                B. 幼稚的

C. 调皮的                D. 冲动的

5. The best title (题目) for the passage is “______”.

A. From Dream to Reality                    B. Good Examples of Dreams

C. Achievements in History                    D. A list of Successful Dreamers

九年级英语阅读理解中等难度题查看答案及解析

Even in early time, people could realize the important of dreams and knew that dreams gave meaning to life. Every great achievement has been the result of years of dreaming. If a person has a dream and holds fast to it, he or she will find a way to bring it into reality (现实).

Children do not have much experience or knowledge. However, they are natural dreamers. We should not laugh at them for being naïve. Many great men were dreamers when they were children. One such dreamer was Thomas Edison. He used to be ostracized (排斥) when he was in primary school, but his achievements were greater than everyone else’s in his time.

Teenagers and young people should also be encouraged to dream. The world is full of successful teenagers and young people. They dreamt big and their dreams changed their lives and even the world. Steve Jobs and Bill Gates are the good examples. They have developed technology and brought great progress to human besides making money for themselves.

Older people should believe that it is never too late to dream and that human mind is never too old to make dreams turn into reality. Colonel Saunders realized his dreams at the age of 67 and set up the biggest fried chicken company (KFC) in the world.

To dream is a wonderful ability which can lead to wonderful results. Olympic records were broken by players who were brave enough to dream. No one is too young or too old to dream and to make dreams come true.

1.People who ______ could probably realize their dreams.

A. find a way to dream

B. dream and hold fast to them

C. get the meaning of life

D. have very good school results

2.Young people should be encouraged to dream because ______.

A. their dreams are natural

B. they are greater than everyone else

C. they have much knowledge

D. their dreams might change the world

3.What does the example of Colonel Saunders show us?

A. Setting up a big company is a wonderful ability.

B. Developing technology can bring great progress.

C. Even older people can make their dreams come true.

D. People should be brave enough to dream when they are young.

4.The underlined word “naive” in the passage means “______” in Chinese.

A. 逆反的　　 B. 幼稚的　　 C. 调皮的　　 D. 冲动的

5.The best title (题目) for the passage is “______”.

A. From Dream to Reality

B. Good Examples of Dreams

C. Achievements in History

D. A list of Successful Dreamers

九年级英语阅读理解中等难度题查看答案及解析

Even in early time, people could realize the important of dreams and knew that dreams gave meaning to life. Every great achievement (成就) has been the result of years of dreaming. If a person has a dream and holds fast to it, he or she will find a way to bring it into reality (现实).

Children do not have much experience or knowledge. However, they are natural dreamers. We should not laugh at them for being naive. Many great men were dreamers when they were children. One such dreamer was Thomas Edison. He used to be ostracized (排斥) when he was in primary school, but his achievements were greater than everyone else’s in his time.

Teenagers and young people should also be encouraged to dream. The world is full of successful teenagers and young people. They dreamt big and their dreams changed their lives and even the world. Steve Jobs and Bill Gates are the good examples. They have developed technology and brought great progress (进步) to human besides making money for themselves.

Older people should believe that it is never too late to dream and that human mind is never too old to make dreams turn into reality. Colonel Saunders realized his dreams at the age of 67 and set up the biggest fried chicken company (KFC) in the world.

To dream is a wonderful ability which can lead to wonderful results. Olympic records were broken by players who were brave enough to dream. No one is too young or too old to dream and to make dreams come true.

1. Young people should be encouraged to dream because ______.

A. their dreams are natural

B. they are greater than everyone else

C. they have much knowledge

D. their dreams might change the world

2.What does the example of Colonel Saunders show us?

A. Setting up a big company is a wonderful ability.

B. Developing technology can bring great progress.

C. Even older people can make their dreams come true.

D. People should be brave enough to dream when they are young.

3.The underlined word “naive” in the passage means “______” in Chinese.

A. 逆反的　　 B. 幼稚的　　 C. 调皮的　　　　 D. 冲动的

4. The best title (题目) for the passage is “______”.

A. From Dream to Reality

B. Good Examples of Dreams

C. Achievements in History

D. A list of Successful Dreamers

九年级英语阅读理解中等难度题查看答案及解析

—I have called Lucy，Lily and Betty.　　 of them said they could help us.

—That's great.

A. Both　　 B. All　　 C. Neither　　 D. None

九年级英语单项填空中等难度题查看答案及解析

Lucy, don’t turn off the computer before closing all programs, ________you could have problems.

A.or B.and C.but D.so

九年级英语单选题中等难度题查看答案及解析