Researchers have long known that lack of slee...

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Researchers have long known that lack of sleep can cause weight gain and increase other health risks. But for those who force themselves out of bed every weekday after too few hours of sleep, they always hope that turning off the alarm on weekends will repay the weekly sleep debt and change any ill effects around completely.

New research published in Current Biology destroys those hopes. Despite complete freedom to sleep in during a weekend recovery period, participants in a sleep laboratory who were limited to five hours of sleep on weekdays gained nearly three pounds over two weeks. They also experienced metabolic disruption (新陈代谢紊乱). Weekend recovery sleep had some benefits after a single week of lack of sleep. However, those gains were wiped out when people went back into their old schedule the next Monday.

“These health effects are long-term,” said Kenneth Wright at the University of Colorado at Boulder, who oversaw the work. “It’s kind of like smoking once was. People would smoke and wouldn’t see an immediate effect on their health, but now they will say that smoking is not a healthy lifestyle choice. I think “catch-up” sleep is in the early phase of where smoking used to be.”

Michael Grandner, at the University of Arizona, said the study highlights that people need to stop thinking of sleep as a balance sheet (资产负债表). Considerably cutting calories all week and then bingeing on (无节制地吃) a giant pizza on Saturday would not restore balance. That is essentially what people are doing when they skip sleep on weekdays with the idea that they can make up for it on the weekend.

The study suggests people should put sleep first — cutting out the optional “sleep stealers” such as watching television shows or spending time on electronic devices. Even when people do not have a choice about losing sleep due to tight schedules, they should think about sleep first in the same way they would a healthy diet or exercise.

1.Why do people hope to sleep longer on weekends?

A.To avoid some debt concerns. B.To cure some illness.

C.To get some health benefits. D.To get complete freedom.

2.What can we infer about weekend recovery sleep from Kenneth Wright?

A.It has the long-term benefits. B.It hides some potential harm.

C.It causes smoking problems. D.It contributes to losing weight.

3.What does the text suggest people do about sleep?

A.Sleep well every day. B.Guarantee weekly sleeping hours.

C.Make up for missing sleep. D.Stop watching TV shows before bed.

4.What can be a suitable title for the text?

A.Weekend “Catch-Up Sleep” Is a Lie.

B.Watch out for "Sleep Stealers".

C.Sleep and Smoking are alike.

D.Lack of Sleep Does No Good.

高三英语阅读理解中等难度题

少年，再来一题如何？

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Researchers have long known that lack of sleep can cause weight gain and increase other health risks. But for those who force themselves out of bed every weekday after too few hours of sleep, they always hope that turning off the alarm on weekends will repay the weekly sleep debt and change any ill effects around completely.
New research published in Current Biology destroys those hopes. Despite complete freedom to sleep in during a weekend recovery period, participants in a sleep laboratory who were limited to five hours of sleep on weekdays gained nearly three pounds over two weeks. They also experienced metabolic disruption (新陈代谢紊乱). Weekend recovery sleep had some benefits after a single week of lack of sleep. However, those gains were wiped out when people went back into their old schedule the next Monday.
“These health effects are long-term,” said Kenneth Wright at the University of Colorado at Boulder, who oversaw the work. “It’s kind of like smoking once was. People would smoke and wouldn’t see an immediate effect on their health, but now they will say that smoking is not a healthy lifestyle choice. I think “catch-up” sleep is in the early phase of where smoking used to be.”
Michael Grandner, at the University of Arizona, said the study highlights that people need to stop thinking of sleep as a balance sheet (资产负债表). Considerably cutting calories all week and then bingeing on (无节制地吃) a giant pizza on Saturday would not restore balance. That is essentially what people are doing when they skip sleep on weekdays with the idea that they can make up for it on the weekend.
The study suggests people should put sleep first — cutting out the optional “sleep stealers” such as watching television shows or spending time on electronic devices. Even when people do not have a choice about losing sleep due to tight schedules, they should think about sleep first in the same way they would a healthy diet or exercise.
1.Why do people hope to sleep longer on weekends?
A.To avoid some debt concerns. B.To cure some illness.
C.To get some health benefits. D.To get complete freedom.
2.What can we infer about weekend recovery sleep from Kenneth Wright?
A.It has the long-term benefits. B.It hides some potential harm.
C.It causes smoking problems. D.It contributes to losing weight.
3.What does the text suggest people do about sleep?
A.Sleep well every day. B.Guarantee weekly sleeping hours.
C.Make up for missing sleep. D.Stop watching TV shows before bed.
4.What can be a suitable title for the text?
A.Weekend “Catch-Up Sleep” Is a Lie.
B.Watch out for "Sleep Stealers".
C.Sleep and Smoking are alike.
D.Lack of Sleep Does No Good.

高三英语阅读理解中等难度题查看答案及解析
There are new findings that not enough sleep may cause people to gain weight. Researchers say a lack of sleep can produce hormonal(激素的) changes that increase feelings of hunger.
In one study, researchers in the United States examined information on more than 1000 people. The people had taken part in a long-term study of sleep disorders.
Some people slept less than five hours a night. They had 15 percent higher blood levels of a hormone called ghrelin than people who slept eight hours. And they had 15 percent less of the hormone leptin. Experts say ghrelin helps make people feel hungry; leptin makes you feel full.
The scientists say these hormonal changes may be a cause of obesity in Western societies. They note the combination that sleep limitation is common and food is widely available.
The results were not affected by how much people exercised. People who are awake longer have more time to burn energy. But the researchers say loss of sleep may increase hunger especially for high-calorie foods, so people gain weight. It seems that, for survival, the body may be designed to store more fat during times with less sleep.
Researchers from Stanford University in California and the University of Wisconsin did the study. They found that the best amount of sleep for weight control is 7.7 hours a night.The Public Library of Science published the findings in its journal Medicine . Internet users can read the full study, free of charge, at plos. org.
1.Not enough sleep can cause obesity by ______.
A. burning more of your energy
B. making you want to eat more food
C. keeping you from doing exercise
D. helping you feel great without food
2.When you sleep 7.7 hours a night, you will ______ .
A. have your ghrelin level rise and leptin level drop
B.have your leptin level rise and ghrelin level drop
C.have your ghretin and leptin levels properly balanced
D.have your hunger increase and your weight decrease
3.You can read the findings________
A. Only on the Internet
B. only in Medicine
C. Both on the Internet and in Medicine
D. Neither on the Internet nor in Medicine

高三英语阅读理解中等难度题查看答案及解析

Doctors have known for a long time that extremely loud noises can cause hearing damage or loss. The noise can be the sound of a jet airplane or machines in factories of loud music or other common sound at home and at work. A person only needs to hear the noise for little more than one second to be affected.

An American scientist has found that using aspirin (阿斯匹林) increase the temporary (暂时的)hearing loss or damage from loud noise. He did an experiment using a number of students at a university who all had normal hearing. He gave them different amounts of aspirin for different periods of time, then he tested their hearing ability. He found that students who were given four grams of aspirin a day for two days suffered much greater temporary hearing loss than those who did not use aspirin. The hearing loss was about two times as great.

The scientist said millions of persons in the U.S. use much larger amounts of aspirin than were used in his experiment. He said these persons face a serious danger of suffering hearing loss from loud noise.

1.Doctors have long known that__________.

A．one may lose his hearing when he hears a terribly loud noise.

B．one may become deaf when he hears a loud noise.

C．loud noises can cause damage to the hearing of the young people only

D．common sounds at home are not harmful to the ear

2.This passage suggests that one’s hearing________.

A．will be damaged even if he has heard a loud noise for only little more than one second

B．will be damaged even if he has heard a loud noise less than one second

C．will not be damaged if he has heard a loud noise for only little more than one second

D．will not be damaged if he has little more than one second to get ready

3.One conclusion you can draw from the passage is that aspirin________.

A．makes hearing damage from loud noise worse

B．should never be taken more than four grams

C．can damage one’s hearing when it is given more than four grams daily

D．always increases hearing loss by two times

4.Millions of Americans are in danger of suffering hearing loss because they__________.

A．take too much aspirin

B．often take air trips

C．like listening to loud music

D．have too much loud noises at home and at work

5.The American scientist did his experiment in order to find ________.

A．how much aspirin would affect a person’s hearing

B．how much aspirin should be given in the treatment of the patients with hearing damage from loud noise

C．whether aspirin would increase the temporary hearing damage from loud noises

D．whether the people who had hearing damage should use aspirin

高三英语阅读理解中等难度题查看答案及解析

Doctors have known for a long time that extremely loud noises can cause hearing damage or loss.The noise can be the sound of a jet airplane or machines in factories of loud music or other common sound at home and at work. A person only needs to hear the noise for little mire than one second to be affected.
An American scientist has found that using aspirin (阿斯匹林) increase the temporary (暂时的)hearing loss or damage from loud noise. He did an experiment using a number of students at a university who all had normal hearing. He gave them different amounts of aspirin for different periods of time, then he tested their hearing ability. He found that students who were given four grams of aspirin a day for two days suffered much greater temporary hearing loss than those who did not use aspirin. The hearing loss was about two times as great.
The scientist said millions of persons in the U.S. use much larger amounts of aspirin than were used in his experiment. He said these persons face a serious danger of suffering hearing loss from loud noise.
1..
.Doctors have long known that__________.
A. one may lose his hearing when he hears a terribly loud noise.
B. one may become deaf when he hears a loud noise.
C.loud noises can cause damage to the hearing of the young people only
D. common sounds at home are not harmful to the ear
2..
.One conclusion you can draw from the passage is that aspirin________.
A. makes hearing damage from loud noise worse
B. should never be taken more than four grams
C.can damage one’s hearing when it is given more than four grams daily
D. always increases hearing loss by two times
3..
. The American scientist did his experiment in order to find ________.
A. how much aspirin would affect a person’s hearing
B. how much aspirin should be given in the treatment of the patients with hearing damage from loud noise
C.whether aspirin would increase the temporary hearing damage from loud noises
D.whether the people who had hearing damage should use aspirin

高三英语阅读理解简单题查看答案及解析
Researchers from Pennsylvania University suggest that loud snoring can be caused by having a fat tongue. Scientists have long known that losing weight can help the condition, but now they know why. It explains why losing weight reduces the risk of obstructive sleep apnoea (阻塞性睡眠呼吸暂停).
Improved symptoms are linked to slimming down the unexpected part of the body - opening the door to better treatments. Professor Richard Schwab, chief of sleep medicine at Pennsylvania University, said: "Most clinicians, and even experts in the sleep apnoea world, have not typically focused on fat in the tongue for treating sleep apnoea."Having a large neck was previously believed to be the culprit(引起问题的事物). Prof Schwab said: "Now we know tongue fat is a risk factor and sleep apnoea improves when tongue fat is reduced, we have established a unique therapeutic target that we've never had before.
In sleep apnoea the airways become blocked - leading to snoring . It blights the lives of four and two percent of middle aged men and women, respectively, in the UK. Long term, sleep apnoea is linked with a number of chronic diseases, including high blood pressure , heart disease, type 2 diabetes, stroke and depression.
Analyzing MRI (magnetic resonance imaging) scans of the throat and nose of obese patients, the researchers found reducing tongue fat is the key. They found that a reduction in tongue fat volume was the key factor. Weight loss also resulted in a smaller pterygoid - the jaw muscle that controls chewing. This is irrespective of whether they appear to fall into the typical "high-risk" obese categories, said Prof Schwab.
He added: "Primary care doctors, and perhaps even dentists, should be asking about snoring and sleepiness in all patients, even those who have a normal body mass index, as, based on our data, they may also be at risk for sleep apnoea."
Twenty-two million Americans suffer from sleep apnoea, in which breathing repeatedly stops and starts, causing patients to wake up randomly throughout their sleep cycles. One of the recommended treatments is CPAP (continuous positive airway pressure), which has been free on the NHS since March 2008.
1.What can we learn from Prof Schwab?
A.People with high tongue fat must be at high risk of obesity.
B.Sleep apnea improves when tongue fat is reduced.
C.Patients with a normal body mass index won’t develop sleep apnea.
D.Most clinicians focus on the fat on the tongue to treat sleep apnea.
2.What does the second paragraph mainly talk about?
A.The shape of tongue fat.
B.The harm of tongue fat.
C.The feature of tongue fat.
D.The cause of tongue fat.
3.What does the underlined word “blight” in the third paragraph most probably mean?
A.harm B.affect
C.benefit D.cost

高三英语阅读理解中等难度题查看答案及解析
Lack of sleep will cause an increase in stress levels, which will lead to you not liking your job. This_____ will also have a negative impact on your productivity.
A.in turn B.in return C.in place D.in brief

高三英语单项填空简单题查看答案及解析
A lack of ____ of cultural differences to local customs can cause problems.
A. existence B. revolution C. awareness D. evidence

高三英语单项填空简单题查看答案及解析
Most teens need 8 to 10 hours of sleep each night. But many teens have trouble sleeping. Lack of sleep can affect sports performance, increase our chances of getting sick, and may be linked to weight gain in some people. How can we get sleep we need? Here are some ideas:
●1. You’ve probably noticed how much running around kids do — and how soundly they sleep. Take a tip from a little child and get at least 60 minutes of exercise a day. Physical activity can decrease stress and help people feel more relaxed. Just don’t work out too close to bedtime because exercise can wake you up.
●Avoid alcohol and drugs. Lots of people think that alcohol or drugs will make them relaxed, but that’s not the case. Drugs and alcohol disturb sleep. 2.
●Say goodnight to electronics. 3. You’d better make your bedroom a tech-free zone, at least shut everything down an hour or more before lights out.
●Keep a sleep routine. Going to bed at the same time every night helps sleep. 4. So you can relax by reading, listening to music or spending time with a pet.
●Expect a good night’s sleep. 5. Say, “Tonight, I will sleep well” several times during the day. It can also help to practice breathing exercises or gentle yoga poses before bed.
A. Be active during the day.
B. Do some extreme sports.
C. Either of them will make a person wake up at night.
D. Expert recommend using the bedroom for sleep only.
E. Creating a set bedtime procedure can improve this relaxation effect.
F. Instead of worrying that you won’t sleep, remind yourself that you can.
G. You can consult a doctor who will give you suggestions on how to sleep well.

高三英语七选五中等难度题查看答案及解析
As a music teacher，I have always known that music touches the soul. It can 36all kinds of barriers to reach students in a very special way.It can be the 37for each child to find their light.I would like to 38a story about it.
For a few years I was 39 with the opportunity to teach disabled students.One of my most 40 students was a five-year-old girl called Vanessa，who had difficulty walking，and could not speak.We 41 sat on the floor for our music lessons and Vanessa liked to 42 on my lap．One of her favorite songs was John the Rabbit.It was a call and response song where I sang the call and the students 43 twice while singing the repeating phrase，“Oh，yes！” Vanessa liked to 44her hands together with mine and clap with me.We probably performed that song during every class，Vanessa and I clapping together.But she 45 said or sang a word.
One day，when the song was finished，Vanessa turned around， 46me in the eyes，clapped her tiny hands twice and said the words“Oh，yes！” I opened my mouth in 47 and for that moment I was the one who could not speak.When my heart 48 started beating again，I looked over at the assistant teacher to find her also 49 .Through music，we had made an awesome connection.
Several years later，I met Vanessa on the street in town.She waved with a big 50 on her face and then clapped her hands twice，imitating the song we had 51 so many times in our music class.The little girl， 52 her connection with music，left an impression on me that will last forever. Every child has the 53 to learn and grow. It is up to us to 54 the way to reach each and every one of our students.We all must find each child's 55.
1.                A．get across       B．put away        C．take over D．break through
2.                A．means         B．direction        C．process D．effort
3.                A．add            B．talk            C．share D．write
4.                A．blessed         B．tired           C．covered D．filled
5.                A．troublesome     B．Hardworking     C．memorable    D．sensitive
6.                A．most           B．almost          C．nearly    D．mostly
7.                A．stand          B．sit             C．lie   D．jump
8.                A．sang           B．said            C．followed D．clapped
9.                A．strike          B．put            C．give D．shake
10.               A．ever           B．never          C．still   D．even
11.               A．looked         B．saw            C．glared D．noticed
12.               A．horror         B．delight         C．astonishment   D．embarrassment
13.               A．immediately     B．fortunately      C．slowly D．finally
14.               A．happy          B．grateful        C．speechless D．hopeless
15.               A．greeting        B．smile          C．expression D．sign
16.               A．performed      B．operated       C．trained    D．organized
17.               A．upon          B．through        C．from D．beyond
18.               A．standard        B．ability          C．plan D．freedom
19.               A．discover        B．invent          C．test D．make
20.               A．strength        B．dream         C．light D．weakness

高三英语完型填空困难题查看答案及解析
As a music teacher，I have always known that music touches the soul．It can 1all kinds of barriers to reach students in a very special way．It can be the 2for each child to find their light．1 would like to 3a story about it．
For a few years 1 was blessed with the opportunity to teach 4students．One of my most 5students was a five-year-old girl called Vanessa，who had difficulty walking，and could not speak．We 6sat on the floor for our music lessons and Vanessa liked to 7on my lap(膝上)．One of her favorite songs was “John the Rabbit．”It was a clapping and response song where I sang the call and the students 8twice while singing the repeating phrase，“Oh，yes” Vanessa liked to 9her hands together with mine and clap with me．We probably performed that song during every class，Vanessa and I clapping together．But she 10said or sang a word．
One day，when the song was finished，Vanessa turned around，11me in the eye，clapped her tiny hands twice and said the words “Oh，yes!” I opened my mouth in 12and for that moment 1 was the one who could not speak．When my heart 13started beating again I looked over at the assistant teacher to find her also 14. Through music we had made an awesome connection．
Several years later，I met Vanessa on the street in town．She waved with a big 15on her face and then clapped her hands twice，imitating the song we had 16so many times in our music class．The little girl，17her connection with music，left an impression on me that will last forever．Every child has the 18to learn and grow．It is up to us to 19the way to reach each and every one of our students．We all must find each child’s 20．
1.A．get across    B．put away     take over   D．break through
2.A．means       B．direction       process       D．effort
3.A．add        B．talk        share         D．write
4.A．disabled B．normal           sad           D．silly
5.A．troublesome B．hardworking   memorable D．sensitive
6.A．most           B．almost       nearly        D．mostly
7.A．stand          B．sit          1ie           D．jump
8.A．sang           B．said         followed      D．clapped
9.A．strike         B．put          give          D．shake
10.A．ever          B．never            still             D．even
11.A．1ooked        B．saw          glared        D．noticed
12.A．horror        B．delight    astonishment D．embarrassment
13.A．immediately B．fortunately    slowly       D．finally
14.A．happy    B．grateful    speechless   D．hopeless
15.A．greeting    B．smile            expression    D．sign
16.A．performed    B．operated    trained       D．organized
17.A．upon          B．through     from      D. beyond
18.A．standard    B．ability    plan          D．necessity
19.A．discover    B．invent           test          D．make
20.A．virtue        B．dream        1ight    ．   D．rhythm

高三英语完形填空中等难度题查看答案及解析