多选题 1.00分

共用题干 Motion SicknessLiving in space looks like lots of fun.You can do certain things in space(like f...

共用题干
Motion Sickness

Living in space looks like lots of fun.You can do certain things in space(like floating
around,or pushing huge objects)that you cannot do on earth.But being in space can do
things to you,too.If you stay too long in a gravity-free environment,your bones could
become weak,and a small spaceship just might annoy you after a while,because space
travel could make you seasick!
On July 4, 1982,after seven days orbiting the earth,astronauts Thomas K. Mattingly
and Henry W. Hartsfield returned home.Although not all of the experiments on board
worked properly,the flight basically seemed to be a success except for one"little"thing:
early in the flight,astronaut Hartsfield became"seasick".
Thomas Mattingly,who is also a jet pilot and is highly resistant to motion sickness on
earth,did much better.Mattingly sailed through space with a steady stomach.But no one
knows why Hartsfield felt uneasy and Mattingly did not.
So far it seems there is no reliable way to predict who will become motion sick in
outer space and who will not.In all,at least four astronauts have suffered from space
motion sickness. Russian and American scientists are working together to try to
understand and solve the motion sickness.Space program officials worry that if so
many highly-trained pilots get sick in space,what will happen when civilians start flying
in the shuttle?
Motion sickness is a disagreeable feeling that comes from the pitching,rolling,
swaying,or just the moving of the object you are riding in or on.Symptoms of motion
sickness include:dizziness,headache,a sinking feeling in the stomach,and vomiting
(呕吐).
Why does motion make some people ill?
Doctors believe that motion sickness is caused by a disturbance in the inner ear.Our
ears do more than give us hearing.A part of the ears gives us a sense of balance and helps
make us aware of whether we are right side up or upside down.
If you know that you get carsick or seasick,what can you do?
Speak to your doctor. There are certain medicines available that can help stop that
uneasy feeling.But many of them can also make you sleepy.Usually they work best taken
before you begin feeling ill.
Some people also recommend water,ice cubes,mints,or plain toast.But these
remedies do not always work for everyone.
Perhaps,since motion sickness is such a big problem in outer space,researchers
may soon find a way to cure the astronauts一and those of us who stay on earth. Russian and American scientists are working together to solve the problem of motion sickness in astronauts.
  • A.Right
  • B.Wrong
  • C.Not mentioned

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1 多选题 1.00分
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The Forbidden Apple
New York used to be the city that never sleeps. These days it's the city that never smokes,drinks or does anything naughty(at least,not in public).The Big Apple is quickly turning into the Forbidden Apple.
If you wanted a glass of wine with your picnic in Central Park,could you have one?No chance. Drinking alcohol in public isn't allowed. If you decided to feed the birds with the last crumbs(碎屑)of your sandwich, you could be arrested. It's illegal. If you went to a bar for a drink and a cigarette,that would be OK,wouldn't it?Er…no.You can't smoke in public in New York City.
What's going on?Why is the city that used to be so open-minded becoming like this?
The mayor of New York is behind it all. He has brought in a whole lot of new laws to stop citizens from doing what they want,when they want.
The press are shocked. Even the New York police have joined the argument. They re- cently spent$100,000 ona“Don't blame the cop”campaign. One New York police officer said,”We raise money for the city by giving people fines for breaking some very stupid laws. It's all about money.”
The result is lot of fines for minor offences. Yoav Kashida,and Israeli tourist,fell asleep on the subway. When he woke up,two police officers fined him because he had fallen asleep on two seats(you mustn't use two seats in the subway).Elle and Serge Schroitman were fined for blocking a driveway with their car. It was their own driveway.
The angry editor of Vanity Fair magazine,Graydon Carter,says.”Under New York City law it is acceptable to keep a gun in your place of work,but not an empty ashtray.”He should know. The police came to his office and took away his ashtray(烟灰缸).
But not all of New York's inhabitants are complaining. Marcia Dugarry,72,said,”The city has changed for the better. If more cities had these laws,America would be a better place to live.”Nixon Patotkis,38,a barman,said,”I like the new laws. If people smoked in here, we'd go home smelling of cigarettes.”
Recent figures show that New York now has fewer crimes per 100,000 people than 193 other US cities.And it's true一It's safer,cleaner and more healthy than before. But let'sbe honest一who goes to New York for its clean streets?
2 多选题 1.00分
共用题干
The Forbidden Apple
New York used to be the city that never sleeps. These days it's the city that never smokes,drinks or does anything naughty(at least,not in public).The Big Apple is quickly turning into the Forbidden Apple.
If you wanted a glass of wine with your picnic in Central Park,could you have one?No chance. Drinking alcohol in public isn't allowed. If you decided to feed the birds with the last crumbs(碎屑)of your sandwich, you could be arrested. It's illegal. If you went to a bar for a drink and a cigarette,that would be OK,wouldn't it?Er…no.You can't smoke in public in New York City.
What's going on?Why is the city that used to be so open-minded becoming like this?
The mayor of New York is behind it all. He has brought in a whole lot of new laws to stop citizens from doing what they want,when they want.
The press are shocked. Even the New York police have joined the argument. They re- cently spent$100,000 ona“Don't blame the cop”campaign. One New York police officer said,”We raise money for the city by giving people fines for breaking some very stupid laws. It's all about money.”
The result is lot of fines for minor offences. Yoav Kashida,and Israeli tourist,fell asleep on the subway. When he woke up,two police officers fined him because he had fallen asleep on two seats(you mustn't use two seats in the subway).Elle and Serge Schroitman were fined for blocking a driveway with their car. It was their own driveway.
The angry editor of Vanity Fair magazine,Graydon Carter,says.”Under New York City law it is acceptable to keep a gun in your place of work,but not an empty ashtray.”He should know. The police came to his office and took away his ashtray(烟灰缸).
But not all of New York's inhabitants are complaining. Marcia Dugarry,72,said,”The city has changed for the better. If more cities had these laws,America would be a better place to live.”Nixon Patotkis,38,a barman,said,”I like the new laws. If people smoked in here, we'd go home smelling of cigarettes.”
Recent figures show that New York now has fewer crimes per 100,000 people than 193 other US cities.And it's true一It's safer,cleaner and more healthy than before. But let'sbe honest一who goes to New York for its clean streets? New York is cleaner and safer than before.
  • A. Right
  • B. Wrong
  • C. Not mentioned
3 多选题 1.00分
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The Northern Lights
The Sun is stormy and has its own kind of weather It is so hot and active that even the Sun's gravity cannot hold its atmosphere in check!Energy flows away from the Sun toward the Earth in a stream of electrified particles that move at speeds around a million miles per hour. These particles are called plasma,and the stream of plasma coming from the Sun is called the solar wind. The more active the Sun,the stronger the solar wind.
The solar wind constantly streams toward the Earth,but don't worry because a protective magnetic field surrounds our planet.The same magnetic field that makes your compass point north also steers the particles from the Sun to the north and south poles.The charged particles become trapped in magnetic belts around the Earth. When a large blast of solar wind crashes into the Earth's magnetic field,the magnetic field first gets squeezed and then the magnetic field lines break and reconnect.
The breaking and reconnecting of the magnetic field lines can cause atomic particles called electrons trapped in the belts to fall into the Earth's atmosphere at the poles. As the electrons fall to the Earth,they collide with gas molecules in the atmosphere,creating flashes of light in the sky. Each atmospheric gas glows a different color. Oxygen and nitrogen glows red and green and nitrogen glows violet-purple. As these various colors glow and dance in the night sky,they create the Northern Lights and the Southern Lights.
Watching auroras is fun and exciting,but normally you can only see them in places far north like Alaska and Canada. The movement of the aurora across the sky is usually slow enough to easily follow with your eyes but they can also pulsate,flicker,or even move like waves.During solar maximum,auroras are seen as far south as Florida,even Mexico!
Auroras often seem to be very close to the ground,but the lowest aurora is still about 100 kilometers above the ground,a distance much higher than clouds are formed or airplanes can fly. A typical aurora band can be thousands of kilometers long,a few hundred kilometers high,but only a few hundred meters thick.
We hope you are able to travel to far north places like the Arctic Circle and see the Northern Lights at least once during your lifetime. We know you will never forget it! Some scientists are worrying about the possible disappearance of the Earth's protective magnetic field in the future.
  • A. Right
  • B. Wrong
  • C. Not mentioned
4 多选题 1.00分
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The Northern Lights
The Sun is stormy and has its own kind of weather It is so hot and active that even the Sun's gravity cannot hold its atmosphere in check!Energy flows away from the Sun toward the Earth in a stream of electrified particles that move at speeds around a million miles per hour. These particles are called plasma,and the stream of plasma coming from the Sun is called the solar wind. The more active the Sun,the stronger the solar wind.
The solar wind constantly streams toward the Earth,but don't worry because a protective magnetic field surrounds our planet.The same magnetic field that makes your compass point north also steers the particles from the Sun to the north and south poles.The charged particles become trapped in magnetic belts around the Earth. When a large blast of solar wind crashes into the Earth's magnetic field,the magnetic field first gets squeezed and then the magnetic field lines break and reconnect.
The breaking and reconnecting of the magnetic field lines can cause atomic particles called electrons trapped in the belts to fall into the Earth's atmosphere at the poles. As the electrons fall to the Earth,they collide with gas molecules in the atmosphere,creating flashes of light in the sky. Each atmospheric gas glows a different color. Oxygen and nitrogen glows red and green and nitrogen glows violet-purple. As these various colors glow and dance in the night sky,they create the Northern Lights and the Southern Lights.
Watching auroras is fun and exciting,but normally you can only see them in places far north like Alaska and Canada. The movement of the aurora across the sky is usually slow enough to easily follow with your eyes but they can also pulsate,flicker,or even move like waves.During solar maximum,auroras are seen as far south as Florida,even Mexico!
Auroras often seem to be very close to the ground,but the lowest aurora is still about 100 kilometers above the ground,a distance much higher than clouds are formed or airplanes can fly. A typical aurora band can be thousands of kilometers long,a few hundred kilometers high,but only a few hundred meters thick.
We hope you are able to travel to far north places like the Arctic Circle and see the Northern Lights at least once during your lifetime. We know you will never forget it! You cannot see the Northern Lights unless you are in Alaska or Canada.
  • A. Right
  • B. Wrong
  • C. Not mentioned
5 多选题 1.00分
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The Northern Lights
The Sun is stormy and has its own kind of weather It is so hot and active that even the Sun's gravity cannot hold its atmosphere in check!Energy flows away from the Sun toward the Earth in a stream of electrified particles that move at speeds around a million miles per hour. These particles are called plasma,and the stream of plasma coming from the Sun is called the solar wind. The more active the Sun,the stronger the solar wind.
The solar wind constantly streams toward the Earth,but don't worry because a protective magnetic field surrounds our planet.The same magnetic field that makes your compass point north also steers the particles from the Sun to the north and south poles.The charged particles become trapped in magnetic belts around the Earth. When a large blast of solar wind crashes into the Earth's magnetic field,the magnetic field first gets squeezed and then the magnetic field lines break and reconnect.
The breaking and reconnecting of the magnetic field lines can cause atomic particles called electrons trapped in the belts to fall into the Earth's atmosphere at the poles. As the electrons fall to the Earth,they collide with gas molecules in the atmosphere,creating flashes of light in the sky. Each atmospheric gas glows a different color. Oxygen and nitrogen glows red and green and nitrogen glows violet-purple. As these various colors glow and dance in the night sky,they create the Northern Lights and the Southern Lights.
Watching auroras is fun and exciting,but normally you can only see them in places far north like Alaska and Canada. The movement of the aurora across the sky is usually slow enough to easily follow with your eyes but they can also pulsate,flicker,or even move like waves.During solar maximum,auroras are seen as far south as Florida,even Mexico!
Auroras often seem to be very close to the ground,but the lowest aurora is still about 100 kilometers above the ground,a distance much higher than clouds are formed or airplanes can fly. A typical aurora band can be thousands of kilometers long,a few hundred kilometers high,but only a few hundred meters thick.
We hope you are able to travel to far north places like the Arctic Circle and see the Northern Lights at least once during your lifetime. We know you will never forget it!
  • A.n aurora is generally close to the ground and is very long and thick.