Since the 1970s, scientists have been searching for ways to connect the brain with computers. Braincomputer interface(BCI) technology could help people with disabilities send commands to machines.
Recently, two scientists, Jose Millan and Michele Tavella from the Federal Polytehnic School in Lausanne, Switzerland, show a small robotic wheelchair directed by a person’s thoughts.
In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts.
“Our brain has billions of body cells(细胞). These send signals through the spinal cord(脊髓) to the body part to give us the ability to move. But spinal cord injuries(脊柱受伤) or other conditions can prevent these weak electrical signals from reaching the body part.” Tavella says. “Our system allows disabled people to communicate with outer world and also to control machines.”
The scientists designed a special cap for the user. This head cover picks up the signals from the scalp(头皮) and sends them to a computer. The computer finds meanings of the signals and commands the wheelchair with an engine. The wheelchair also has two cameras that tell objects in its path. They help the computer react to commands from the brain.
Prof. Millan , the team leader, says scientists keep improving the computer software that finds meanings of brain signals and turns them into simple commands.” The practical possibilities that BCI technology offers to disabled people can be grouped in two kinds: communication, and controlling objects. One example is this wheelchair.”
He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can get advantages from. And the other is sure that they can use the technology for long.
1.BCI is a technology that can________.
A. help to make computer systems more modern
B. connect the human brain with computers
C. help the disabled to be healthier
D. control a person’s thoughts
2.Which of the following shows the path of the signals described in Paragraph 5?
A. scalp→computer→cap→wheelchair
B. computer→cap→scalp→wheelchair
C. scalp→cap→computer→wheelchair
D. cap→computer→scalp→wheelchair
3.The team will test with real patients to_________.
A. make money from them
B. prove the technology useful to them
C. make them live longer
D. learn about their physical condition
4.Which of the following would be the best title for the text?
A. Switzerland, the BCI research Center
B. New Findings About How the Human Brain Works
C. BCI Could Mean More Freedom for the Disabled
D. Robotic Vehicles Could Help to Cure Brain Sickness
九年级英语阅读理解中等难度题
Since the 1970s, scientists have been searching for ways to connect the brain with computers. Braincomputer interface(BCI) technology could help people with disabilities send commands to machines.
Recently, two scientists, Jose Millan and Michele Tavella from the Federal Polytehnic School in Lausanne, Switzerland, show a small robotic wheelchair directed by a person’s thoughts.
In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts.
“Our brain has billions of body cells(细胞). These send signals through the spinal cord(脊髓) to the body part to give us the ability to move. But spinal cord injuries(脊柱受伤) or other conditions can prevent these weak electrical signals from reaching the body part.” Tavella says. “Our system allows disabled people to communicate with outer world and also to control machines.”
The scientists designed a special cap for the user. This head cover picks up the signals from the scalp(头皮) and sends them to a computer. The computer finds meanings of the signals and commands the wheelchair with an engine. The wheelchair also has two cameras that tell objects in its path. They help the computer react to commands from the brain.
Prof. Millan , the team leader, says scientists keep improving the computer software that finds meanings of brain signals and turns them into simple commands.” The practical possibilities that BCI technology offers to disabled people can be grouped in two kinds: communication, and controlling objects. One example is this wheelchair.”
He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can get advantages from. And the other is sure that they can use the technology for long.
1.BCI is a technology that can________.
A. help to make computer systems more modern
B. connect the human brain with computers
C. help the disabled to be healthier
D. control a person’s thoughts
2.Which of the following shows the path of the signals described in Paragraph 5?
A. scalp→computer→cap→wheelchair
B. computer→cap→scalp→wheelchair
C. scalp→cap→computer→wheelchair
D. cap→computer→scalp→wheelchair
3.The team will test with real patients to_________.
A. make money from them
B. prove the technology useful to them
C. make them live longer
D. learn about their physical condition
4.Which of the following would be the best title for the text?
A. Switzerland, the BCI research Center
B. New Findings About How the Human Brain Works
C. BCI Could Mean More Freedom for the Disabled
D. Robotic Vehicles Could Help to Cure Brain Sickness
九年级英语阅读理解中等难度题查看答案及解析
Since the 1970s, scientists have been searching for ways to connect the brain with computers. Braincomputer interface(BCI) technology could help people with disabilities send commands to machines.
Recently, two scientists, Jose Millan and Michele Tavella from the Federal Polytehnic School in Lausanne, Switzerland, show a small robotic wheelchair directed by a person’s thoughts.
In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts.
“Our brain has billions of body cells(细胞). These send signals through the spinal cord(脊髓) to the body part to give us the ability to move. But spinal cord injuries(脊柱受伤) or other conditions can prevent these weak electrical signals from reaching the body part.” Tavella says. “Our system allows disabled people to communicate with outer world and also to control machines.”
The scientists designed a special cap for the user. This head cover picks up the signals from the scalp(头皮) and sends them to a computer. The computer finds meanings of the signals and commands the wheelchair with an engine. The wheelchair also has two cameras that tell objects in its path. They help the computer react to commands from the brain.
Prof. Millan , the team leader, says scientists keep improving the computer software that finds meanings of brain signals and turns them into simple commands.” The practical possibilities that BCI technology offers to disabled people can be grouped in two kinds: communication, and controlling objects. One example is this wheelchair.”
He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can get advantages from. And the other is sure that they can use the technology for long.
1. BCI is a technology that can________.
A.help to make computer systems more modern
B.connect the human brain with computers
C.help the disabled to be healthier
D.control a person’s thoughts
2.Which of the following shows the path of the signals described in Paragraph 5?
A.scalp→computer→cap→wheelchair
B.computer→cap→scalp→wheelchair
C.scalp→cap→computer→wheelchair
D.cap→computer→scalp→wheelchair
3.The team will test with real patients to_________.
A.make money from them
B.prove the technology useful to them
C.make them live longer
D.learn about their physical condition
4.Which of the following would be the best title for the text?
A.Switzerland, the BCI research Center
B.New Findings About How the Human Brain Works
C.BCI Could Mean More Freedom for the Disabled
D.Robotic Vehicles Could Help to Cure Brain Sickness
九年级英语阅读理解中等难度题查看答案及解析
Since the 1970s, scientists have been searching for ways to connect our brain with computers. Brain-Computer Interface (BCI) technology could help people with disabilities send commands(指令)to machines.
Recently two researchers, Jose Millan and Michele Tavella from the Federal Polytechnic School in Lausanne. Switzerland, showed us a small robotic wheelchair directed(指挥)by a person’s thoughts.
In the laboratory. Tavella operated the wheelchair just by thinking about moving his left or right hand “Our brain has billions of cells(细胞). These send signals(信号)through the spinal cord(脊髓)to the muscles(肌肉)to give us the ability to move. But some injuries or other conditions can stop these weak electrical signals from reaching the muscles.” Tavella says. “Our system allows disabled people to communicate with outside world by controlling the machines with thoughts.”
The researchers designed a special cap for the user. It picks up the signals from our brain and sends them to a computer. The computer gets the signals and starts to command the wheelchair after a short while.
Prof. Millan, the team leader, says scientists keep improving the computer software that gets brain signals and turns them into simple commands. “The practical possibilities that BCI technology offers to disabled people can be grouped in two kinds: communication, and controlling machines. One example is this wheelchair.”
He says his team has set a main goal. That is to test with real patients, so as to prove that this is such a technology they can benefit(获益)from.
1.BCI is a technology that can __________.
A. help the disabled to be healthy again B. help to improve computers
C. control a person’s thoughts D. connect human brain with computers
2.Which of the following shows the right path(途径)of the signals described in Paragraph 4?
A. brain→computer→cap→wheelchair B. computer→cap→brain→wheelchair
C. cap→omputer→brain→wheelchair D. brain→cap→computer→wheelchair
3.Prof. Millan’s team will test their products with real patients to __________.
A. make them live longer B. prove that the technology is useful to them
C. learn about their physical conditions D. have a better understanding of computers
4.The best title of this passage might be __________.
A. Switzerland, the BCI Research Center
B. New Findings about How the Human Brain Works
C. BCI Could Mean More Freedom for the Disabled
D. BCI Could Help to Cure Brain Injuries
九年级英语阅读单选中等难度题查看答案及解析
Since the first Earth Day started on April 22, 1970, people around the world have been encouraged to protect the environment and natural resources.Gaylord Nelson started this holiday.On the first Earth Day, 20 million people took part in Earth Day events.
Earth Day activities can include learning something about technology like cars that are more environmentally friendly and special houses that save energy and water.An organization called the Earth Day Network encourages people to use clean energy which doesn’t pollute the environment.Most of our energy comes from fossil fuels (化石燃料) that are found underground. Coal, oil and natural gas are examples of fossil fuels.Fossil fuels come from plants and animals that lived millions of years ago. Burning fossil fuels to create energy pollutes the air and water. Many scientists think that burning fossil fuels also increases the temperature of the earth. To reduce the use of fossil fuels. scientists are experimenting with hydrogen-powered (氢化发动的) cars. These cars don’t pollute the air like gas-powered cars.
Some scientists guess that by 2025, fossil fuels will run out.When people can no longer use gasoline, they may use fuel cells instead. Fuel cells use hydrogen to create energy. People do not need to worry about hydrogen running out, because it is renewable and replaceable.
In Washington, D.C., a few people drive cars that run on fuel cells. When these cars need more energy, drivers can go to a hydrogen pump.The first hydrogen pump for the public opened in November 2004, marking an important step toward a cleaner environment.
1.what can we learn from the passage?
A.Fossil fuels don’t pollute the air.
B.Hydrogen-powered cars make less pollution.
C.Many drivers are driving hydrogen-powered cars.
D.We can find many hydrogen pumps in the USA.
2.How long may people still be able to use fossil fuels?
A.Twenty years. B.Over thirty-eight years.
C.More than ten years. D.About seventeen years.
3.Which of the following is not mentioned?
A.Scientists are producing more hydrogen-powered cars.
B.Some people drive fuel-cell cars in Washington.
C.Fossil fuels come from plants and animals.
D.We can learn about environmentally friendly technology from Earth Day activities.
4.When do fossil fuels pollute the air?
A.When we use them to create gasoline.
B.When people get them from the underground.
C.After being burned to get energy.
D.After getting them from a hydrogen pump.
5.Because hydrogen is renewable, we don’t need to worry that ________.
A.it will be used up B.it can be used for creating energy
C.it will pollute the environment D.it will be cleaner
九年级英语阅读理解中等难度题查看答案及解析
Since the first Earth Day started on April 22, 1970, people around the world have been encouraged to protect the environment and natural resources.Gaylord Nelson started this holiday.On the first Earth Day,20 million people took part in Earth Day events.
Earth Day activities can include learning something about technology like cars that are more environmentally friendly and special houses that save energy and water.An organization called the Earth Day Network encourages people to use clean energy which doesn’t pollute the environment.Most of our energy comes from fossil fuels (化石燃料) that are found underground.Coal, oil and natural gas are examples of fossil fuels.Fossil fuels come from plants and animals that lived millions of years ago.Burning fossil fuels to create energy pollutes the air and water.Many scientists think that burning fossil fuels also increases the temperature of the earth.To reduce the use of fossil fuels.scientists are experimenting with hydrogen-powered (氢化发动的)cars.These cars don’t pollute the air like gas-powered cars.
Some scientists guess that by 2025, fossil fuels will run out.When people can no longer use gasoline, they may use fuel cells instead.Fuel cells use hydrogen to create energy.People do not need to worry about hydrogen running out, because it is renewable and replaceable.
In Washington,D.C., a few people drive cars that run on fuel cells.When these cars need more energy, drivers can go to a hydrogen pump.The first hydrogen pump for the public opened in November 2004, marking an important step toward a cleaner environment.
1.what can we learn from the passage?
A.Fossil fuels don’t pollute the air.
B.Hydrogen-powered cars make less pollution.
C.Many drivers are driving hydrogen-powered cars.
D.We can find many hydrogen pumps in the USA.
2.How long may people still be able to use fossil fuels?
A.Twenty years. B.Over thirty-eight years.
C.More than ten years. D.About seventeen years.
3.Which of the following is not mentioned?
A.Scientists are producing more hydrogen-powered cars.
B.Some people drive fuel-cell cars in Washington.
C.Fossil fuels come from plants and animals.
D.We can learn about environmentally friendly technology from Earth Day activities.
4.When do fossil fuels pollute the air?
A.When we use them to create gasoline.
B.When people get them from the underground.
C.After being burned to get energy.
D.After getting them from a hydrogen pump.
5.Because hydrogen is renewable, we don’t need to worry that ________.
A.it will be used up
B.it can be used for creating energy
C.it will pollute the environment
D.it will be cleaner
九年级英语阅读理解困难题查看答案及解析
Various ways have been provided for us to solve the problem. We can choose _____to start with.
A. it B. that C. each D. one
九年级英语单项填空中等难度题查看答案及解析
— The police have been looking for the missing boy in the mountains for days.
—Any good news?
A.searching for B.leading to C.hearing from
九年级英语单选题简单题查看答案及解析
For hundreds of years, scientists have been trying to answer what things have an influence on people’s emotions. What your feeling is always controlled by many things. Your emotions can be influenced by your personality (个性), by the actions of others and by events around you. Perhaps you don’t know your emotions can be influenced by the weather as well.
People often say they feel good when the sun is shining and sad when it is cloudy. In fact, sunlight makes us feel good. When sunlight hits our skins, our bodies produce a vitamin(维生素). Vitamins are natural chemicals which we all need to stay healthy. Sunlight helps our bodies produce vitamin D. Vitamin D helps our bodies make a special chemical. This special chemical influence our brains and makes us feel happy. For example, there are long, dark winters of little sunlight in Sweden and Norway, so many people in these countries often feel sad. Without much sunlight, their bodies produce less vitamin D. Without enough vitamin D, their bodies make less ofthis special chemical which makes them feel good. To help the people in these countries feel better, special“sunrooms”with man-made lights have been built. People can go there and get “sunlight” for an hour or two.
The weather can also influence people’s emotions in other ways. Hot weather can make people angry because people feel uncomfortable when they are hot. In the same way, rain can make people angry because being wet can be unpleasant. As you can see, the weather can have an effect on the chemicals which control our brains. Through these ways, the weather can influence our emotions. Sadly, while the weather can change us, we can hardly change the weather.
1. Which of the following can bet described as a factor(因素) that can influence one’s emotions?
A. Weather. B. Actions of others.
C. Personality D. A, B and C.
2.What’s the meaning of the underlined word “emotions” in Chinese?
A. 运动 B. 情绪 C. 感动 D. 激动
3.Which of the following is TRUE about vitamin D according to the passage?
A. It is a kind of man-made chemical.
B. It makes us worried by influencing our brains.
C. It is needed by us all to keep fit.
D. It is in the sunlight.
4.What may be the best title for this passage?
A. Why Do We Feel Sad.
B. The Weather Influences People’s Emotion.
C. People Need More Vitamin D.
D. We Can Hardly Change the Weather.
九年级英语阅读理解中等难度题查看答案及解析
For hundreds of years, scientists have been trying to answer what things have an effect on people’s emotions. How you feel is controlled by many things. Your emotions can be affected by your personality, the actions of others and the events around you. Perhaps you don’t know your emotions can be influenced by the weather as well.
People often say they feel good when the sun is shining and sad when it is cloudy.
In fact, sunlight makes us feel good. When sunlight hits our skins, our bodies produce a vitamin. Vitamins are chemical substances ( 化学物质) which we all need to stay healthy.
Sunlight helps our bodies produce vitamin D. Vitamin D helps our bodies make a special chemical substance. This special chemical substance affects our brains(大脑) and makes us feel happy. For example, there are long, dark winters of little sunlight in Sweden and Norway, so many people in these countries often feel sad. Without much sunlight, their bodies produce less vitamin D. Without enough vitamin D, their bodies make less of this special chemical substance which makes them feel good. To help the people in these countries feel better, special “ sunrooms” with artificial( 人造的) lights have been built.
People can go there and get “ sunlight” for an hour or two !
The weather can also affect people’s emotions in other ways. Hot weather can make people angry because people feel uncomfortable when they are hot. In the same way, rain can make people angry because being wet can be unpleasant. As you can see, the weather can have an effect on the chemical substances which control our brains. Through these ways, the weather can inflience our emotions. Sadly , while the weather can change us, we can hardly change the weather.
The1._______ influences people’s emotions | |
What influences people’s emotions? | Your personality, the2.______ of others, the (3._______ around you and the weather |
How are our emotions influenced by the weather ? | 4.______: Our bodies produce a chemical substance when sunlight hits our skins. Then it affects our brains and makes us feel 5.________. Hot weather: We feel angry 6.______ in hot weather because we feel uncomfortable when it is hot. 7._______ weather: We feel angry because being wet can be 8.)_________. |
Conclusion | The weather can influence our emotions 9._________ it influences the chemical substances that control our brains. The weather can change us, but we can do 10._______ to change the weather. |
九年级英语阅读理解中等难度题查看答案及解析
For hundreds of years, scientists have been trying to answer what things have an effect on people’s emotions. How you feel is controlled by many things. Your emotions can be affected by your personality, by the actions of others and by events around you. Perhaps you don’t know your emotions can be influenced by the weather as well.
People often say they feel good when the sun is shining and sad when it is cloudy. In fact, sunlight makes us feel good. When sunlight hits our skins, our bodies produce a vitamin. Vitamins are natural chemicals (化学物质) which we all need to stay healthy. Sunlight helps our bodies produce vitamin D. Vitamin D helps our bodies make a special chemical. This special chemical affects our brains and makes us feel happy. For example, there are long, dark winters of little sunlight in Sweden and Norway, so many people in these countries often feel sad. Without much sunlight, their bodies produce less vitamin D. Without enough vitamin D, their bodies make less of this special chemical which makes them feel good. To help the people in these countries feel better, special “sunrooms” with artificial (人造的) lights have been built. People can go there and get “sunlight” for an hour or two!
The weather can also affect people’s emotions in other ways. Hot weather can make people angry because people feel uncomfortable when they are hot. In the same way, rain can make people angry because being wet can be unpleasant. As you can see, the weather can have an effect on the chemicals which control our brains. Through these ways, the weather can influence our emotions. Sadly, while the weather can change us, we can hardly change the weather.
1.Which of the following is NOT mentioned as a factor that can affect one’s emotions?
A. Weather. B. Actions of others.
C. Personality. D. Age.
2.Which of the following is true about vitamin D according to the passage?
A. It is a kind of artificial chemical.
B. It makes us worried by affecting our brains.
C. It is needed by us all to keep fit.
D. It is in the sunlight.
3.What can we infer from the passage?
A. We feel good when we are in the bright cool weather.
B. We will be happy when we are caught in the rain.
C. All people in Norway and Sweden feel sad in winter.
D. The more vitamin D you have, the happier you’ll be.
4.What may be the best title for this passage?
A. Why Do We Feel Sad?
B. The Weather Influences People’s Emotions
C. People Need More Vitamin D
D. We Can Hardly Change the Weather
九年级英语阅读理解中等难度题查看答案及解析