We humans love to stare into our smart devices. We gaze for hours-about 10 hours and 39 minutes a day-at our computers, smartphones,tablets and televisions. Is all this staring bad for us? It might be mainly because as we stare at our devices we are exposing ourselves to blue light.
Blue light is a type of electromagnetic(电磁的) radiation with a very short wavelength that produces a high amount of energy. While it’s true that light can damage our eyes under certain circumstances, there’s no scientific evidence suggesting that blue light is harmful to our eyes. But many people still think it is, which is why blue-light-blocking glasses are so popular. So do the glasses work?
“Everyone is very concerned that blue light may be causing damage to the eye, but there’s no evidence that it may be causing serious damage,” Dr. Rahul Khurana, clinical spokesman for the American Academy of Ophthalmology,told Business Insider.
Blue light exposure is nothing new. In fact,the sun is the largest source of blue light. Moreover, blue light is also present in LED light. But if blue light isn’t harmful, then why are we constantly rubbing our eyes when we’re looking at our screens? The answer is eyestrain(眼疲劳): More than 60 percent of people experience eye problems associated with digital eyestrain. And blue light, it seems, isn’t the cause. Instead, our eyes are so strained because most of us blink less when we stare at our digital devices. So if eyestrain is the issue, blue-light-blocking glasses are probably of little use.
1.What do we know about blue light?
A.It is a kind of nuclear radiation.
B.It has the shortest wavelength.
C.It may come from electronic devices.
D.It consumes a great deal of energy.
2.What causes the popularity of blue-light-blocking glasses?
A.Evidence of their benefits to eyes.
B.Belief in blue light's harmful effect.
C.Widespread use of smart devices.
D.Scientific understanding of blue light.
3.What can be inferred from Paragraph 4?
A.Blue light exposure is hardly avoidable.
B.Eye problems are not easy to deal with.
C.Blue light may connect with tired eyes.
D.Rubbing eyes makes people strained.
4.According to the text, wearing blue-light-blocking glasses may be________.
A.tiring B.harmful
C.useless D.beneficial
高三英语阅读理解中等难度题
We humans love to stare into our smart devices. We gaze for hours—about 10 hours and 39 minutes a day—at our computers, smartphones, tablets and televisions. Is all this staring bad for us? It might be, mainly because as we stare at our devices we are exposing ourselves to blue light.
Blue light is a type of electromagnetic radiation with a very short wavelength that produces a high amount of energy. While it’s true that light can damage our eyes under certain circumstances, there’s no scientific evidence suggesting that blue light is harmful to our eyes. But many people still think it is, which is why blue—light—blocking glasses are so popular. So, do the glasses work?
“Everyone is very concerned that blue light may be causing damage to the eye, but there’s no evidence that it may be causing serious damage,” Dr.Rahul Khurana, a clinical spokesman, told Business Insider.
Blue light exposure is nothing new. In fact, the sun is the largest source of blue light. Moreover, blue light is also present in LED light. But if blue light isn’t harmful, then why are we constantly rubbing our eyes when we’re looking at our screens? The answer is eyestrain(眼疲劳). More than 60 percent of people experience eye problems associated with digital eyestrain. And blue light, it seems isn’t the cause. Instead, our eyes are so strained because most of us blink less when we stare at our digital devices. So, if eyestrain is the real issue, blue-light-blocking glasses are probably of little use.
1.What do we know about blue light?
A.It has the shortest wavelength.
B.It’s a kind of nuclear radiation.
C.It consumes a great deal of energy.
D.It may come from electronic devices.
2.What causes the popularity of blue-light-blocking glasses?
A.Evidence of their benefits to eyes.
B.Widespread use of smart devices.
C.Belief in blue light’s harmful effect.
D.Scientific understanding of blue light.
3.What can be inferred from Paragraph 4?
A.Rubbing eyes makes people strained.
B.Blue light exposure is hardly avoidable.
C.Blue light may connect with tired eyes.
D.Eye problems are not easy to deal with.
4.According to the text, wearing blue-light-blocking glasses may be _______.
A.useless B.harmful C.tiring D.beneficial
高三英语阅读理解中等难度题查看答案及解析
We humans love to stare into our smart devices. We gaze for hours-about 10 hours and 39 minutes a day-at our computers, smartphones,tablets and televisions. Is all this staring bad for us? It might be mainly because as we stare at our devices we are exposing ourselves to blue light.
Blue light is a type of electromagnetic(电磁的) radiation with a very short wavelength that produces a high amount of energy. While it’s true that light can damage our eyes under certain circumstances, there’s no scientific evidence suggesting that blue light is harmful to our eyes. But many people still think it is, which is why blue-light-blocking glasses are so popular. So do the glasses work?
“Everyone is very concerned that blue light may be causing damage to the eye, but there’s no evidence that it may be causing serious damage,” Dr. Rahul Khurana, clinical spokesman for the American Academy of Ophthalmology,told Business Insider.
Blue light exposure is nothing new. In fact,the sun is the largest source of blue light. Moreover, blue light is also present in LED light. But if blue light isn’t harmful, then why are we constantly rubbing our eyes when we’re looking at our screens? The answer is eyestrain(眼疲劳): More than 60 percent of people experience eye problems associated with digital eyestrain. And blue light, it seems, isn’t the cause. Instead, our eyes are so strained because most of us blink less when we stare at our digital devices. So if eyestrain is the issue, blue-light-blocking glasses are probably of little use.
1.What do we know about blue light?
A.It is a kind of nuclear radiation.
B.It has the shortest wavelength.
C.It may come from electronic devices.
D.It consumes a great deal of energy.
2.What causes the popularity of blue-light-blocking glasses?
A.Evidence of their benefits to eyes.
B.Belief in blue light's harmful effect.
C.Widespread use of smart devices.
D.Scientific understanding of blue light.
3.What can be inferred from Paragraph 4?
A.Blue light exposure is hardly avoidable.
B.Eye problems are not easy to deal with.
C.Blue light may connect with tired eyes.
D.Rubbing eyes makes people strained.
4.According to the text, wearing blue-light-blocking glasses may be________.
A.tiring B.harmful
C.useless D.beneficial
高三英语阅读理解中等难度题查看答案及解析
We humans love to stare into our smart devices.We gaze for hours—about 10 hours and 39 minutes a day—at our computers，smartphones，tablets and televisions.Is all this staring bad for us? It might be，mainly because as we stare at our devices we are exposing ourselves to blue light.
Blue light is a type of electromagnetic radiation with a very short wavelength that produces a high amount of energy.While it's true that light can damage our eyes under certain circumstances，there's no scientific evidence suggesting that blue light is harmful to our eyes.But many people still think it is，which is why blue light—blocking glasses are so popular.So do the glasses work?
“Everyone is very concerned that blue light may be causing damage to the eye，but there's no evidence that it may be causing serious damage，”Dr.Rahul Khurana，clinical spokesman for the American Academy of Ophthalmologists，told Business Insider.
Blue light exposure is nothing new.In fact，the sun is the largest source of blue light.Moreover，blue light is also present in LED light.But if blue light isn't harmful，then why are we constantly rubbing our eyes when we’re looking at our screens? The answer is eyestrain(眼疲劳):More than 60 percent of people experience eye problems associated with digital eyestrain.And blue light，it seems，isn't the cause.Instead，our eyes are so strained because most of us blink less when we stare at our digital devices.So if eyestrain is the real issue，blue light-blocking glasses are probably of little use.
1.What do we know about blue light?
A. It is a kind of nuclear radiation.
B. It has the shortest wavelength.
C. It may come from electronic devices.
D. It consumes a great deal of energy.
2.What causes the popularity of blue light-blocking glasses?
A. Evidence of their benefits to eyes.
B. Belief in blue light's harmful effect.
C. Widespread use of smart devices.
D. Scientific understanding of blue light.
3.What can be inferred from Paragraph 4?
A. Blue light exposure is hardly avoidable.
B. Eye problems are not easy to deal with.
C. Blue 1ight may connect with tired eyes.
D. Rubbing eyes makes people strained.
4.According to the text，wearing blue light-blocking glasses may be_______.
A. tiring B. harmful C. useless D. beneficial
高三英语阅读理解简单题查看答案及解析
Most of us long for relationships in which we are loved and accepted. Our hearts’ desire is to give and receive love in relationships that make us feel that even if others disagree with what we do or say, they still love us, accept us, and appreciate what we give to the world. While it would be wonderful to have these types of relationships with all people, we know that’s hard to do. However, we can have such relationships with some others, but only when we first have them with ourselves—and, strangely, this is often the hardest relationship of all.
Do you love yourself? You may think you do, but do you really? There’s only one way to find out— by taking a close look at what you think, say, and do. You may not like some of what you find, but if you are serious about really loving yourself, you can use this insight to do some positive inner work. Here’re three ways for gaining greater personal insight for deeper love:
Listen Closely to Your Thoughts
Your thoughts will determine your actions. One thing helping you to listen to your thoughts is keeping a journal. It is not necessary for you to write in it every day, but it helps to record various insights you gain as you go about your life. Instead of using a big notebook, you might use a small notepad that you can keep in your pocket for easy access to record your thoughts as they occur to you. Whichever method you choose, what’s most important is that you write your thoughts down. It will help you know what’s in your heart.
Be Honest with Yourself
To do this, you should pay attention to your actions. Actions speak louder than words, and they always tell the truth. If you say you love your job, but your actions say otherwise, which do you think is more reliable? On the other hand, if you say you’re not good at a certain job, but your actions say otherwise, that’s also important. What do you do with this insight? You can use it to make more positive choices in your life. By being honest with yourself, you will act according to truth instead of just what you tell yourself.
Take Quiet Time to Listen to Your Inner Voice
This is similar to the first point, but it takes a step further— beyond the natural mind to the heart that cannot be seen. You may want to use your quiet time to think deeply. However you use this time, the key is to shut out all of the noise around you by focusing deep within yourself. Breathing deeply during quiet time will also help you focus. I know it’s hard to find quiet time during a particularly busy day, but it’s so important— even if it’s just 10 minutes a day and you have to hide somewhere to get it. Quiet time can really make a difference in your life.
Despite what your mind may be telling you, you can have love with no limits. The key is to unconditionally love yourself first.
1.. By looking deep into what we think, say, and do, we can ________.
A. know whether we really love ourselves
B. appreciate what we give to the world
C. realize what type of relationship we long for
D. know whether we are loved and accepted by others
2..An important way for gaining personal insight is to ________.
A. do some positive inner work
B. keep a journal wherever you go
C. look closely at what others say about us
D. pay attention to our thoughts
3..The insight we gain from our actions can help us ________.
A. focus our attention on our jobs
B. make more positive choices in our life
C. act according to the truth
D. tell the differences between our words and our actions
4..It can be learned from the passage that if we want to have love without limits, we must first of all ________.
A. be honest with ourselves anytime
B. give our love to others generously
C. love ourselves unconditionally
D. take quiet time and think deeply
高三英语阅读理解困难题查看答案及解析
When we start gazing into the night sky with a telescope, soon we’ll be astonished by the realization _______ we and our world are part of this giant system.
A. which B. whether C. that D. as
高三英语单项填空中等难度题查看答案及解析
Smart devices are sometimes powerful. They put a world of information at our fingertips. ―1.That is a huge blessing for parents seeking flexible work hours. Smart phones and tablets can also promote efficiency by allowing people to get things done in spare moments that would otherwise be wasted, such as while queuing for coffee. They can even help lazybones create the false impression that they are working around the clock, by programming their e-mail to be sent at 1 am.
But for most people, the servant has become the master. Not long ago only doctors were on call all the lime. Now everybody is. Bosses think nothing of invading their employees' free time. 2. Even people with strong mind check their smart devices with heavy addiction, even during pre-dinner drinks, and send e-mails first thing in the morning and last thing at night.
3. How can we harvest the benefits of connectivity without becoming its slaves? One solution is digital dieting. Just as the abundance of junk food means that people have to be more disciplined about their eating habits, 4. Maybe the only way to break the 24/7 habit is to act together rather than individually. The firms should introduce rules about when people are expected to be offline, and encourage them to work together to make this possible.
We must be aware that the faster smart devices become and the more addictive the apps that are designed for them, the stronger the addiction will grow. 5.
A. This is partly because smart devices are addictive.
B. Work invades the home far more than domestic chores invade the office.
C. Now it's time to outsmart the smart devices by insisting that everyone turn them off from time to lime.
D. the abundance of junk information means we have to be more disciplined about our browsing habits.
E. Banning texting at weekends can really show the iPhone who is boss.
F. They enable people to work at home instead of crowding into the subway with smelly strangers.
G. What can be done to keep smart devices in their place?
高三英语七选五中等难度题查看答案及解析
It is not how much we do but how much love we put into what we dobenefits our work most.
A．where B．that C．when D．who
高三英语单项填空中等难度题查看答案及解析
(2011·陕西)It is not how much we do but how much love we put into what we do ________ benefits our work most.
A．who B．which C．that D．what
高三英语单项填空中等难度题查看答案及解析
It is not how much we do but how much love we put into what we do ________ benefits our work most.(2011·陕西)
A．who B．which C．that D．what
高三英语单项填空中等难度题查看答案及解析
It is not how much we do but how much love we put into what we do______benefits our work most.
A. who B. which C. that D. what
高三英语单项填空中等难度题查看答案及解析