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Using a computer or smartphone at night can cause us to pile on the pounds，new research has revealed．
The study found a link between blue light exposure(blue light is produced by smartphones and computers)and increased hunger．It found that exposure to blue light increases hunger levels for several hours and even increases hunger levels after eating a meal．Blue light exposure has also already been shown to cause decreased sleepiness in the evening，increasing the risk of sleeplessness．
The leading researcher，Ivy Cheung，from Northwestern University in Chicago，said，“A single three-hour exposure to blue-enriched light in the evening greatly affected hunger and metabolism(新陈代谢)．These results are important because they suggest that controlling environmental light exposure for humans may represent a novel approach of influencing food intake patterns and metabolism．”
The study group consisted of 10 healthy adults with regular sleep and eating schedules. They completed a four-day trial under dim(昏暗的)light conditions，which involved exposure to less than 20 lux(勒克斯，照明单位)during 16 hours awake and less than 3 lux during eight hours of sleep．On the third day they were exposed to three hours of 260 lux，blue-enriched light starting10.5 hours after waking up．and the effects were compared with dim light exposure.
Ivy Cheung said more research is needed to determine the functions involved in the relationship between light exposure，hunger and metabolism．
1.What is Paragraph 2 mainly about?
A．How blue light exposure affects hunger．
B．Why blue light exposure influences sleepiness．
C．What is the link between blue light exposure，hunger and sleepiness．
D．Who has found the effects of blue light exposure on hunger and sleepiness．
2.The underlined word“novel”in the third paragraph probably means“___________”.
A．unusual B．unforgettable
C．temporary D．controversial
3.What can we learn from the passage?
A．Blue light exposure can make us lose weight at night．
B．Blue light exposure has no effect on sleeplessness．
C．The researchers drew their conclusion by comparison．
D．Ivy Cheung has found the relationship between light exposure and hunger．
4.Where would you be most likely to find the passage?
A．On a notice board． B．In a health magazine．
C．On a business website． D．In a college newspaper．
高三英语阅读理解中等难度题查看答案及解析
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Using a computer or smartphone at night can cause us to pile on the pounds，new research has revealed．
The study found a link between blue light exposure(blue light is produced by smartphones and computers)and increased hunger．It found that exposure to blue light increases hunger levels for several houus and even increases hunger levels after eating a meal．Blue light exposure has also already been shown to cause decreased sleepiness in the evening，increasing the risk of sleeplessness．
The leading researcher，Ivy Cheung，from Northwestern University in Chicago，said，“A single three-hour exposure to blue-enriched light in the evening greatly affected hunger and metabolism(新陈代谢)．These results are important because they suggest that controlling environmental light exposure for humans may represent a novel approach of influencing food intake patterns and metabolism．”
The study group consisted of 10 healthy adults with regular sleep and eating schedules. They completed a four-day trial under dim(昏暗的)light conditions，which involved exposure to less than 20 lux(勒克斯，照明单位)during 16 hours awake and less than 3 lux during eight hours of sleep．On the third day they were exposed to three hours of 260 lux，blue-enriched light starting10.5 hours after waking up, and the effects were compared with dim light exposure.
Ivy Cheung said more research is needed to determine the functions involved in the relationship between light exposure，hunger and metabolism．
1.What is Paragraph 2 mainly about?
A．How blue light exposure affects hunger．
B．Why blue light exposure influences sleepiness．
C．What is the link between blue light exposure，hunger and sleepiness．
D．Who has found the effects of blue light exposure on hunger and sleepiness．
2.The underlined word“novel”in the third paragraph probably means“___________”.
A．unusual B．unforgettable
C．temporary D．controversial
3.What can we learn from the passage?
A．Blue light exposure can make us lose weight at night．
B．Blue light exposure has no effect on sleeplessness．
C．The researchers drew their conclusion by comparison．
D．Ivy Cheung has found the relationship between light exposure and hunger．
4.Where would you be most likely to find the passage?
A．On a notice board． B．In a health magazine．
C．On a business website． D．In a college newspaper．
高三英语阅读理解中等难度题查看答案及解析
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______ before bed, cellphones can result in a restless night.
A. To use B. Using C. Used D. Having used
高三英语单项填空中等难度题查看答案及解析
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If you go out to the fields at night in spring or summer, you can hear frogs singing 1.__ (joy) here and there. It seems as if they were performing a field symphony.
The frog is a good and useful creature that benefits human beings. They can catch fast-moving insects. Each frog eats a large number of pests that are harmful _2.__ crops. This little creature is regarded __3._ “the natural enemy of pests”．
4._ now frogs are getting fewer and fewer. This is because they are killed and put on the table as a delicious dish by their chief enemy, human beings. It is __5.__ shameless and cruel act, isn’ t it？_6._ cause responsible for the rapid reduction of frogs is that farmers use insecticides (杀虫剂) to kill pests and frogs get killed as a result of drinking poisoned water __7._ eating poison-killed insects.
Something must be done without delay _8._(save) frogs. If we don’t punish those __9._ sell and kill frogs to make money, then one day all of us __10.__(punish) by nature for failing to keep the balance of nature.
高三英语其他题中等难度题查看答案及解析
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How Smartphone Adds to Your Weight
Using a smartphone at mealtimes can lead to an expanding waistline. Researchers have found that men and women consumed 15% more calories when looking at their phones while eating. 1. The groundbreaking study suggests that staring at a phone screen may distract (分心) dinners from how much food and what they are actually eating.
“It may prevent the correct understanding of the brain over the amount of food ingested,” said researchers who filmed 62 volunteers eating alone.
The volunteers, aged 18 to 28, were divided in to three groups and invited to help themselves to a choice of food — ranging from healthy options to soft drinks and chocolate — until they were satisfied. 2. On average, the volunteers ate 535 calories without the distraction of a smartphone but 591 when using a mobile. Those in the sample who were classed as overweight ate 616 calories while using their phones. When in possession of their mobiles, the volunteers also consumed 10 percent more fatty foods. 3.
“Smartphone use during a meal increased calorie and fat intake,” said Márcio Gilberto Zangeronimoa, a lead author of the study — carried out at the Federal University of Lavras in Brazil and University Medical Center Utrecht in the Netherlands. He added: “Tablets and smartphones have become the main ‘distracters’ during meals, even early in childhood. 4.A distracter prevents the brain correctly understanding the amount of food accepted.”5. A more detailed analysis can be found in the journal.
A.They also eat more fatty food.
B.They also ate more when reading a magazine.
C.Distracted or hurried eating can add to weight gain.
D.The study is published in Physiology And Behavior.
E.It is important to pay attention to how this may impact food intakes.
F.Hunger isn’t the only thing that influences how much we eat during the day.
G.They were recorded eating with no distractions, using a smartphone or reading a magazine.
高三英语七选五中等难度题查看答案及解析
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_____ computers are convenient to us in daily life, it may also cause other problems.
A. Whether B. Because C. As D. While
高三英语单项填空中等难度题查看答案及解析
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Could the device, smartphone or PC, which you re using affect the moral decisions you make when using it? To test it, researchers presented multiple dilemmas to a sample set of 1,010 people. The participants were assigned a device at random.
One case of the questions participants were asked is the classic “trolley(有轨电车) problem”: A runaway trolley is headed towards five people tied up on a-set of train tracks. You can do nothing, resulting in the deaths of five people, or push a man off a bridge, which will stop the trolley. The practical response is to kill one man to save five lives, which 33. 5 percent of smartphone users chose, compared to 22.3 percent of PC users.
“What we round in our study is that when people used a smartphone to view classic moral problems, they were more likely to make more unemotional, reasonable decisions when presented with a highly emotional dilemma, “Dr Albert Barque-Duran, the lead author of the study, told City, University of London. “This could be due to the increased time pressure often present with smartphones and also the increased psychological distance which can occur when we use such devices compared to PCs.”
As for why the researchers started this study, Dr Barque-Duran noted, “Due to the fact that our social lives, work and even shopping take place online, it is important to think about how the contexts where we typically face moral decisions and are asked to engage in moral behavior have changed, and the impact this could have on the hundreds of millions of people who use such devices daily. “it’s clear that we need more research on how our devices affect our moral decision making because we’re using screens at an ever increasing rate.
1.Why did the author mention the trolley problem?
A.To introduce a difficult problem to readers.
B.To introduce the aim of carrying out the study.
C.To show an example of the questions in the study
D.To show the difficulty in dealing with dilemmas.
2.How do the smartphone users of the study behave in dealing with emotional dilemmas?
A.Calmly. B.Cruelly.
C.Hesitantly. D.Enthusiastically.
3.Dr Albert believes that compared with PCs, smartphones .
A.help people bear more pressure
B.help people make decisions quick
C.make people feel more mentally distant
D.make people stay happier to solve problems
4.What can we infer from the text?
A.Shopping online has a great effect on making moral decisions.
B.The people using smartphones are more than those using PCs.
C.People who often use smartphones or PCs always meet with dilemmas,
D.It is common for people to be involved in making moral decisions in daily life.
高三英语阅读理解中等难度题查看答案及解析
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Could the device, smartphone or PC, which you re using affect the moral decisions you make when using it? To test it, researchers presented multiple dilemmas to a sample set of 1,010 people. The participants were assigned a device at random.
One case of the questions participants were asked is the classic “trolley(有轨电车) problem”: A runaway trolley is headed towards five people tied up on a-set of train tracks. You can do nothing, resulting in the deaths of five people, or push a man off a bridge, which will stop the trolley. The practical response is to kill one man to save five lives, which 33. 5 percent of smartphone users chose, compared to 22.3 percent of PC users.
“What we round in our study is that when people used a smartphone to view classic moral problems, they were more likely to make more unemotional, reasonable decisions when presented with a highly emotional dilemma, “Dr Albert Barque-Duran, the lead author of the study, told City, University of London. “This could be due to the increased time pressure often present with smartphones and also the increased psychological distance which can occur when we use such devices compared to PCs.”
As for why the researchers started this study, Dr Barque-Duran noted, “Due to the fact that our social lives, work and even shopping take place online, it is important to think about how the contexts where we typically face moral decisions and are asked to engage in moral behavior have changed, and the impact this could have on the hundreds of millions of people who use such devices daily. “it’s clear that we need more research on how our devices affect our moral decision making because we’re using screens at an ever increasing rate.
1.Why did the author mention the trolley problem?
A. To introduce a difficult problem to readers.
B. To introduce the aim of carrying out the study.
C. To show an example of the questions in the study
D. To show the difficulty in dealing with dilemmas.
2.How do the smartphone users of the study behave in dealing with emotional dilemmas?
A. Calmly. B. Cruelly.
C. Hesitantly. D. Enthusiastically.
3.Dr Albert believes that compared with PCs, smartphones .
A. help people bear more pressure
B. help people make decisions quick
C. make people feel more mentally distant
D. make people stay happier to solve problems
4.What can we infer from the text?
A. Shopping online has a great effect on making moral decisions.
B. The people using smartphones are more than those using PCs.
C. People who often use smartphones or PCs always meet with dilemmas,
D. It is common for people to be involved in making moral decisions in daily life.
高三英语阅读理解中等难度题查看答案及解析
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You're at home, and the work is piling up. Deadlines are fast approaching, and yet you can't seem to focus. The kitchen, the laundry, the television...they're all right there teasing you into switching them on, cleaning them, using them.1.
Distinguish between work and home mode
One of the biggest advantages of working from home-slowly moving from bed to the sofa five minutes before you start-can also be your biggest challenge. Don't forget that you are there to work. Get out of your pajamas, and get dressed like you are going to work.2.
Be realistic about what you can achieve
A wide, open day working from home can feel full of possibilities. 145 things on the to-do list? No problem!3.Be realistic and then you will possibly achieve more than you set out to. You'll end up feeling satisfied, rather than feeling disappointed you didn't do everything.
Work in short bursts
In the office your day is broken up by everything from meetings to water-cooler chats, and lunch breaks, but a day at home can be very unstructured. In order to be productive, you should impose structure on yourself.4.This can be an effective way to maintain your concentration levels.
5.
Distractions, distractions, distractions! You know the ones, they are everywhere at home and they're always calling your name! To stay focused, make a dedicated workspace away from potential distractions like TV, an Internet connection, and chores. Keep things that interrupt your focus limited to short breaks in between periods of focused work.
A.Manage distractions.
B.Put what you need at hand.
C.However, don't fall into the trap of being over-ambitious.
D.For example, a 45-60 minutes' focused work can be followed by a short break.
E.This will change your mindset and help you switch from home to work mode.
F.Well, here are a few tips to help you take control of your time and productivity when working from home.
G.You tell yourself you will spend just a few short minutes on Facebook or YouTube only to pick your head up an hour later and glance at the clock in disbelief.
高三英语七选五中等难度题查看答案及解析
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All of us, at some point, experience nights where we have difficulty falling asleep or staying asleep. The National Institute of Health estimates that one in three adults has bouts of infrequent sleeplessness or insomnia, while one in 10 sufferes from chronic insomnia. Being unable to get a good night's sleep can cause disruptions in our daytoday life. But persistent sleeplessness can lead to physical and emotional health problems.
The body needs sleep to rejuvenate itself and rebuild the cells necessary to keep the immune system strong and the brain functioning properly. Everyone's body requires a different amount of sleep to accomplish these goals. The average amount of sleep needed by an adult is around seven or eight hours a night. However, some people can function quite well with less than that, while others need more to be at peak performance.
Sleeplessness can be caused by many different things. Most people experience sleeplessness for a short period of time due to an outside stimulus such as stress, improper diet, a poor sleeping environment or an acute medical concern such as the flu. Once the stimulus passes, the ability to sleep will usually return. Chronic sleeplessness may be caused by ongoing health concerns such as the physical pain of arthritis or the emotional pain of anxiety and depression.
Prolonged sleeplessness can have a negative effect on the way the body performs daily tasks. Those that suffer from sleepless nights may find themselves feeling drowsy or fatigued during the day. The ability to concentrate or focus on a task diminishes and you are less mentally alert. Because the body needs sleep to support a healthy immune system, those that are sleepdeprived may be more susceptible to both acute and chronic illnesses such as high blood pressure and diabetes.
Sleeplessness not only takes a toll on your physical self but also your emotional wellbeing. Being unable to sleep well for a few nights may only produce minor irritability. However, if sleeplessness becomes chronic, the price could be much higher in the form of anxiety, depression and possibly substance abuse. Those with chronic sleeplessness may turn to controlled substances such as sleeping pills and alcohol to aid them in their quest for a good night's sleep.
There are numerous home remedies for mild sleeplessness. Prepare your body for sleep by avoiding caffeinated drinks such as tea or coffee before bed. Don't exercise strenuously before bedtime; instead do something relaxing such as meditate or take a warm bath. Go to bed only when you feel sleepy and not because of a selfappointed bedtime.Finally, create a favorable sleeping environment by removing stimulants from your bedroom such as extra lighting or a television. If you still cannot find relief, it may be time to visit your physician for help. A sleep study will be done that can help to determine the cause of the sleeplessness and possible solutions.
高三英语阅读理解中等难度题查看答案及解析