Sweet Dreams While You Sleep
Did you sleep the day away on Friday March 21? Well, you should have done that because it was World Sleeping Day.
This is the day of the year when people around the world care about their sleep and ask themselves questions about sleep.
Why do we need sleep?
Nobody as yet can give a perfect answer to this question. However, lab tests on rats have shown that lack (缺少) of sleep over about four weeks leads to a strong drop in body temperature, great weight loss and finally, death.
How much sleep?
Different people need different amounts of sleep. Eight hours a night is considered the average amount of sleep. For teenagers, the least number of sleeping hours advised by doctors are 10 hours for primary school students, nine for junior highs and eight for senior highs.
Some people seem to get along just well with very little sleep at night. Leading American scientist Thomas Edison, for example thought of sleep to be a waste of time. He did, however take naps (打盹) during the day. On the other hand, Albert Einstein, another great scientist, said he needed at least ten hours sleep a night.
How can we sleep well?
Here are some of the most popular tips for a good night's sleep:
*Listen to your body clock, not your alarm clock (闹钟).
*Use your bed only to sleep.
*Get up and go to bed at the same time (also on weekends).
*Exercise in the morning and in the early afternoon. Don't exercise in the evening.
*Stop looking at that clock while you can't sleep! And don't worry.
*Avoid alcohol (酒精), caffeine (咖啡因) and smoking before going to bed.
*Keep the bedroom dark, quiet, and cool.
1.Which of the following is true according to the passage?
A. Thomas Edison slept very long hours every day.
B. Albert Einstein needed very little sleep.
C. Doctors suggested that primary school students have ten hours of sleep.
D. Doctors suggested that junior highs have eight hours of sleep.
2.Which of the following is not a good sleeping habit?
A. Have a cup of alcohol before going to bed.
B. Keep the bedroom dark, quiet and cool.
C. Get up and go to bed at the same time.
D. Listen to your body clock.
3.What is implied in this passage?
A. Bedrooms can be used for other purposes.
B. Great scientists need less sleep than ordinary people.
C. World sleeping day is the only time when people become concerned about sleep.
D. Results from lab tests on rats may be applicable to humans.
高三英语阅读理解中等难度题
Sweet Dreams While You Sleep
Did you sleep the day away on Friday March 21? Well, you should have done that because it was World Sleeping Day.
This is the day of the year when people around the world care about their sleep and ask themselves questions about sleep.
Why do we need sleep?
Nobody as yet can give a perfect answer to this question. However, lab tests on rats have shown that lack (缺少) of sleep over about four weeks leads to a strong drop in body temperature, great weight loss and finally, death.
How much sleep?
Different people need different amounts of sleep. Eight hours a night is considered the average amount of sleep. For teenagers, the least number of sleeping hours advised by doctors are 10 hours for primary school students, nine for junior highs and eight for senior highs.
Some people seem to get along just well with very little sleep at night. Leading American scientist Thomas Edison, for example thought of sleep to be a waste of time. He did, however take naps (打盹) during the day. On the other hand, Albert Einstein, another great scientist, said he needed at least ten hours sleep a night.
How can we sleep well?
Here are some of the most popular tips for a good night's sleep:
*Listen to your body clock, not your alarm clock (闹钟).
*Use your bed only to sleep.
*Get up and go to bed at the same time (also on weekends).
*Exercise in the morning and in the early afternoon. Don't exercise in the evening.
*Stop looking at that clock while you can't sleep! And don't worry.
*Avoid alcohol (酒精), caffeine (咖啡因) and smoking before going to bed.
*Keep the bedroom dark, quiet, and cool.
1.Which of the following is true according to the passage?
A. Thomas Edison slept very long hours every day.
B. Albert Einstein needed very little sleep.
C. Doctors suggested that primary school students have ten hours of sleep.
D. Doctors suggested that junior highs have eight hours of sleep.
2.Which of the following is not a good sleeping habit?
A. Have a cup of alcohol before going to bed.
B. Keep the bedroom dark, quiet and cool.
C. Get up and go to bed at the same time.
D. Listen to your body clock.
3.What is implied in this passage?
A. Bedrooms can be used for other purposes.
B. Great scientists need less sleep than ordinary people.
C. World sleeping day is the only time when people become concerned about sleep.
D. Results from lab tests on rats may be applicable to humans.
高三英语阅读理解中等难度题查看答案及解析
If you smell the flowers before you go to sleep, you may just sweet dreams.
A. keep up with B. put up with C. end up with D. catch up with
高三英语单项填空简单题查看答案及解析
Smell the flowers before you go to sleep, and you may just ______ sweet dreams.
A keep up with B put up with C end up with D catch up with.
高三英语单项填空中等难度题查看答案及解析
Smell the flowers before you go to sleep, and you may just ________ sweet dreams.
A．keep up with B．put up with
C．end up with D．catch up with
高三英语单项填空中等难度题查看答案及解析
Smell the flowers before you go to sleep, and you may just ________sweet dreams.
A. keep up with B. put up with C. end up with D. catch up with
高三英语单项填空简单题查看答案及解析
Smell the flowers before you go to sleep, and you may just ________sweet dreams.
A.keep up with B.put up with C.end up with D.catch up with
高三英语单项填空简单题查看答案及解析
If you haven’t had enough sleep, your actions will give you _____ during the day.
A. away B. up C. in D. off
高三英语单项填空中等难度题查看答案及解析
What you smell as you sleep may influence your dreams. Smell the flowers before you go to sleep ________ you may just end up with rosier dreams.
A. and B. / C. or D. but
高三英语单项填空中等难度题查看答案及解析
What you smell as you sleep may influence your dreams. Smell the flowers before you go to sleep ________ you may just end up with rosier dreams.
| A．and | B．/ | C．or | D．but |
高三英语单项填空简单题查看答案及解析
A rainy day can be a chance to recharge. While you relaxed on the sofa with a movie, the raindrops falling on your windows might one day provide the power for your TV. This is the idea behind an invention that harvests energy from water.
The technology is based on the triboelectric (摩擦电的)effect. An engineer at the University of Hawaii, David Ma knew that it’s possible to generate electricity by rubbing two things together. So, he thought, “Why don’t we use water?”
A drop of water sliding across a surface coated with two different materials would generate enough friction to create an electrical charge. By placing metal wires that the drop of water touched as it moved, it should be possible to harvest electricity, he reasoned.
It worked. In fact, the researchers lit up 15 LED bulbs with a single moving water drop.
This is not the first time that scientists have got electricity from water-generated friction( 摩 擦 ). Earlier experiments, though, harvested the charge produced in a surface by a sliding drop of water. There, the surface had acted as an electrode(电极). This is different. The energy of friction is being harvested from the water itself.
“It turns out,” Ma says, “the charge in the water drop is way more than the charge produced in the other electrode.” In fact, his team’s model generated almost 100 times more power than previous experiments from a single drop of water.
“The technology could someday power phones, sensors or other small electronics,” says Christopher Oshman, an engineer at the Colorado School of Mines. “This work is a step toward harvesting the energy of moving objects all around us, including ourselves, to power the electronic appliances we use every day,” he says.
Ma has shown that the technology can work in a lab, Oshman says. Next, the Colorado researcher would like to see it tried on a larger scale, such as on an umbrella.
1.How did the author introduce the topic of the text?
A.By telling a story.
B.By raising a question.
C.By giving an example.
D.By imagining a situation.
2.What does the underlined word “it” in Paragraph 3 refer to?
A.The wire. B.The drop of water.
C.The surface. D.The electricity.
3.What is unique about Ma’s technique compared with earlier experiments?
A.The water itself acts as an electrode.
B.It is based on the triboelectric effect.
C.It produces electricity from water-made friction.
D.It uses a surface coated with two different materials.
4.What does Oshman say about Ma’s technology?
A.It has a promising future.
B.It will do well on an umbrella.
C.It works well in the real world.
D.It will replace batteries someday.
高三英语阅读理解困难题查看答案及解析