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People often think that blue light before bedtime can make it harder to sleep. It’s true that the screens on phones, computers and televisions send out plenty of blue light. But if you’re focused on blue light as a major problem affecting your sleep or your eye health, it’s time to look at it from another aspect.
As Philip Yuhas, a professor of vision, writes at The Conversation, blue light isn’t a uniquely technological evil. It’s part of sunlight, and your eyes are exposed to plenty of it all the time. You’re fine. There are studies in mice that have found blue light can damage their eyes, but mice are nocturnal creatures (夜行动物) whose eyes are different from ours. The pigments (色素) and the lenses (晶状体) of our eyes actually block blue light fairly well—so in a sense, we already have built-in blue blocking protection.
Adding more protection isn’t likely to help, though. You can buy glasses and screen filters (滤光片) that block blue light, but Yuhas points out they are probably a waste of money. These products do not block out much blue light. The leading blue-blocking anti-reflective coating, for example, blocks only about 15% of the blue light that screens send out. You could get the same reduction just by holding your phone another inch from your face.
The American Academy of Ophthalmology doesn’t recommend blue-blocking products, either. Instead, if you’re concerned about your eye health or your ability to get to sleep on time, you already know what to do.
Put the screens away at bedtime. Read a book or find something else to do. While you’re using screens, take a 20-second break every 20 minutes to look at something 20 feet away (the “20-20-20” rule). If you get dry eyes when you look at screens for a long time, use eye drops labeled artificial tears.
1.What do people often think of blue light?
A.It is magical and rare. B.It is the most part of sunlight.
C.It is harmful to people’s skin. D.It is a factor affecting peoples sleep.
2.What did the studies in paragraph 2 find?
A.Mice can see clearly in the dark.
B.Blue light can damage mice’s eyes.
C.Human eyes actually absorb blue light well.
D.Human eyes need extra protection against blue light.
3.What can we know about blue-blocking products according to Yuhas?
A.They block a little blue light.
B.People should buy a better one.
C.They are thought highly of by experts.
D.Most can prevent plenty of harmful lights.
4.What could be the best title for the text?
A.What will Blue Light Affect Actually?
B.Are Blue Light Really from Screens?
C.Does Blue Light Affect People’s Health?
D.Why Does Blue Light Make Sleeping Hard?
高三英语阅读理解中等难度题查看答案及解析
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So you’re thinking about breaking up with me. But before doing that, make sure you have examined its short-term and long-term environmental effects.
Let’s start simple: consider the great number of gallons of clean, drinkable water that would be wasted by my crying in the shower. Scientists don’t have a precise estimate of how much water might be lost, but, considering the length of my listening to the recent two sad albums during the shower, the amount is sure to be catastrophic.
Make no mistake: running from my sweet hug leaves a set of carbon footprints. Your leaving me will start a swift chain of events that results in me at a bar, drunkenly cursing at you with my friends.
At the end of the night, I will be forced to take a taxi home instead of the subway. Those extra carbon dioxide releases are a breakup by-product, as are the single-use plastic bottles of Glacier Freeze-flavor Gatorade I’ll surely buy the next morning.
Some effects are more hidden. Should you kick me to the roadside, you must anticipate that I am going to sit there eating ice cream. I will eat ice cream a lot every day, because I have seen sad women do this in movies. This, of course, causes ecological disaster. Not only do dairy cows produce greenhouse gas, but industrial dairy farming can cause the destruction of prairies (北美草原) forests, and other ecosystems. You might meet other interesting women in your life, but good luck is replacing North America’s wetlands!
Breaking up with me is a very personal choice, and no one can make it for you. I only hope that you have gained a helpful new way of thinking, one broad enough to deal with the world that waits for you in your single-hood. There might be “other fish in the sea,” but will there be actual fish in the real sea? It doesn’t look good. Alternatively, we could stay together and preserve this beautiful blue sea for our grandchildren. The Intergovernmental Panel on Climate Change and I eagerly wait for your decision.
1.What can we learn from the passage?
A.The North America’s wetlands are expected to disappear.
B.The writer will cry much during the shower for the breakup.
C.Eating ice cream has a direct connection with deforestation.
D.An international organization is waiting for the man’s reply.
2.According to the passage, a breakup might cause the following results except _____.
A.wasting water
B.global warming
C.white pollution
D.illegal fishing
3.What is the purpose of the passage?
A.To remind her boyfriend to care for the environment.
B.To state the short-term and long-term environmental effects.
C.To persuade her boyfriend not to break up with her.
D.To reveal her disappointment and sorrow after the breakup.
高三英语阅读理解中等难度题查看答案及解析
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Don’t you think necessary to make a plan before you start doing it?
A. one B. that C. it D. this
高三英语单项填空简单题查看答案及解析
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Before I studied psychology, I used to think that people would laugh when funny things occurred. While I was right about that, I discovered there are lots of other psychological factors that make people laugh other than the funny part of a joke. When someone laughs at a joke, there will usually be more than one reason that makes him laugh—and the more reasons there are, the more powerful the joke will be.
I was attending a standup comedy show in Egypt, and when the man started to make fun of pedestrians crossing streets, everyone laughed their heads off. The main reason why those people strongly laughed was that almost all of them felt angry towards pedestrians who crossed streets carelessly. The joke wasn't only funny, but it also made the audience feel that they were right about being angry at those pedestrians. That is, people were laughing both because of the funny joke and because of the happiness experienced as a result of the psychological support they got.
The better a joke makes a person feel, and the more it includes other psychological factors, the more the person will like it. For example, if you envy one of your friends, and someone tells a joke that is funny and, at the same time, makes your friend seem stupid, then you will probably laugh at it louder than if you weren't jealous of him.
In short, we don't laugh only when we hear something funny; we also laugh when we experience some kind of happiness that results from the other psychological factors involved in the joke. I strongly discourage you from making fun of anyone or belittling someone to make someone else laugh. All I want to explain is that if your joke supports a person's emotions, he will certainly like it a lot.
1.What did the author find out after studying psychology?
A. Only good jokes make people laugh.
B. Many factors lead to people's laughing.
C. Funny things can make people laugh.
D. Laughter can make people healthy.
2.Why did the audience laugh loud at the pedestrians?
A. They played a trick on the pedestrians.
B. The pedestrians behaved in a funny way.
C. They could feel the pedestrians' happiness.
D. Their emotion was approved of by the show.
3.What does the underlined word “belittling” probably mean?
A. Annoy. B. Blame.
C. Look down on. D. Make up to.
4.Which of the following best shows the structure of the passage?
A.
B. 
C.
D. 
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 I studied psychology, I used to think that people would laugh when funny things occurred. While I was right about that, I discovered there are lots of other psychological factors that make people laugh other than the funny part of a joke. When someone laughs at a joke, there will usually be more than one reason that makes him laugh—and the more reasons there are, the more powerful the joke will be.
I was attending a stand-up comedy show in Egypt, and when the man started to make fun of pedestrians crossing streets, everyone laughed their hearts out. The main reason those people strongly laughed was that almost all of them felt angry towards pedestrians who crossed streets carelessly. The joke wasn’t only funny, it also made the audience feel that they were right about being angry at those pedestrians. That is, people were laughing both because of the funny joke and because of the happiness experienced as a result of the psychological support they got.
The better a joke makes a person feel, and the more it includes other psychological factors, the more the person will like it. For example, if you envy one of your friends, and someone tells a joke that is funny and, at the same time, makes your friend seem stupid, then you will probably laugh at it louder than if you weren’t jealous of him.
In short, we don’t laugh only when we hear something funny; we also laugh when we experience some kind of happiness that results from the other psychological factors involved in the joke. I strongly discourage making fun of anyone or belittling someone to make someone else laugh. All I want to explain is that if your joke supports a person’s emotions, he will certainly like it a lot.
1.What did the author find out after studying psychology?
A. Only good jokes make people laugh
B. Many factors lead to people laughing.
C. Funny things can make people laugh
D. Laughter can make people healthy.
2.Why did the audience laugh loud at the pedestrians?
A. They played a trick on the pedestrians.
B. The pedestrians behaved in a funny way.
C. They could feel the pedestrians’ happiness.
D. Their emotion was approved of by the show.
3.What does the underlined word “belittling” probably mean?
A. Annoy B. Blame
C. Look down on D. Make up to
4.Which of the following best shows the structure of the passage?
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 I studied psychology, I used to think that people would laugh when funny things occurred. While I was right about that, I discovered there are lots of other psychological factors that make people laugh other than the funny part of a joke. When someone laughs at a joke, there will usually be more than one reason that makes him laugh—and the more reasons there are, the more powerful the joke will be.
I was attending a standup comedy show in Egypt, and when the man started to make fun of pedestrians crossing streets, everyone laughed their heads off. The main reason why those people strongly laughed was that almost all of them felt angry towards pedestrians who crossed streets carelessly. The joke wasn't only funny, but it also made the audience feel that they were right about being angry at those pedestrians. That is, people were laughing both because of the funny joke and because of the happiness experienced as a result of the psychological support they got.
The better a joke makes a person feel, and the more it includes other psychological factors, the more the person will like it. For example, if you envy one of your friends, and someone tells a joke that is funny and, at the same time, makes your friend seem stupid, then you will probably laugh at it louder than if you weren't jealous of him.
In short, we don't laugh only when we hear something funny; we also laugh when we experience some kind of happiness that results from the other psychological factors involved in the joke. I strongly discourage you from making fun of anyone or belittling someone to make someone else laugh. All I want to explain is that if your joke supports a person's emotions, he will certainly like it a lot.
1.What did the author find out after studying psychology?
A.Only good jokes make people laugh.
B.Many factors lead to people's laughing.
C.Funny things can make people laugh.
D.Laughter can make people healthy.
2.Why did the audience laugh loud at the pedestrians?
A.They played a trick on the pedestrians.
B.The pedestrians behaved in a funny way.
C.They could feel the pedestrians' happiness.
D.Their emotion was approved of by the show.
3.What does the underlined word “belittling” probably mean?
A.Annoy. B.Blame.
C.Look down on. D.Make up to.
4.Which of the following best shows the structure of the passage?
A.
B.
C.
D.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 I studied psychology, I used to think that people would laugh when funny things occurred. While I was right about that, I discovered there are lots of other psychological factors that make people laugh other than the funny part of a joke. When someone laughs at a joke, there will usually be more than one reason that makes him laugh—and the more reasons there are, the more powerful the joke will be.
I was attending a stand-up comedy show in Egypt, and when the man started to make fun of pedestrians crossing streets, everyone laughed their hearts out. The main reason those people strongly laughed was that almost all of them felt angry towards pedestrians who crossed streets carelessly. The joke wasn’t only funny, it also made the audience feel that they were right about being angry at those pedestrians. That is, people were laughing both because of the funny joke and because of the happiness experienced as a result of the psychological support they got.
The better a joke makes a person feel, and the more it includes other psychological factors, the more the person will like it. For example, if you envy one of your friends, and someone tells a joke that is funny and, at the same time, makes your friend seem stupid, then you will probably laugh at it louder than if you weren’t jealous of him.
In short, we don’t laugh only when we hear something funny; we also laugh when we experience some kind of happiness that results from the other psychological factors involved in the joke. I strongly discourage making fun of anyone or belittling someone to make someone else laugh. All I want to explain is that if your joke supports a person’s emotions, he will certainly like it a lot.
1.What did the author find out after studying psychology?
A. Only good jokes make people laugh
B. Many factors lead to people laughing.
C. Funny things can make people laugh
D. Laughter can make people healthy.
2.Why did the audience laugh loud at the pedestrians?
A. They played a trick on the pedestrians.
B. The pedestrians behaved in a funny way.
C. They could feel the pedestrians’ happiness.
D. Their emotion was approved of by the show.
3.What does the underlined word “belittling” probably mean?
A. Annoy B. Blame
C. Look down on D. Make up to
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 I studied psychology, I used to think that people would laugh when funny things occurred. While I was right about that, I discovered there are lots of other psychological factors that make people laugh other than the funny part of a joke. When someone laughs at a joke, there will usually be more than one reason that makes him laugh—and the more reasons there are, the more powerful the joke will be.
I was attending a stand-up comedy show in Egypt, and when the man started to make fun of pedestrians crossing streets, everyone laughed their hearts out. The main reason those people strongly laughed was that almost all of them felt angry towards pedestrians who crossed streets carelessly. The joke wasn’t only funny, it also made the audience feel that they were right about being angry at those pedestrians. That is, people were laughing both because of the funny joke and because of the happiness experienced as a result of the psychological support they got.
The better a joke makes a person feel, and the more it includes other psychological factors, the more the person will like it. For example, if you envy one of your friends, and someone tells a joke that is funny and, at the same time, makes your friend seem stupid, then you will probably laugh at it louder than if you weren’t jealous of him.
In short, we don’t laugh only when we hear something funny; we also laugh when we experience some kind of happiness that results from the other psychological factors involved in the joke. I strongly discourage making fun of anyone or belittling someone to make someone else laugh. All I want to explain is that if your joke supports a person’s emotions, he will certainly like it a lot.
1.What did the author find out after studying psychology?
A. Only good jokes make people laugh
B. Many factors lead to people laughing.
C. Funny things can make people laugh
D. Laughter can make people healthy.
2.Why did the audience laugh loud at the pedestrians?
A. They played a trick on the pedestrians.
B. The pedestrians behaved in a funny way.
C. They could feel the pedestrians’ happiness.
D. Their emotion was approved of by the show.
3.What does the underlined word “belittling” probably mean?
A. Speak highly of B. Get close to
C. Look down on D. Feel content with
4.Which of the following best shows the structure of the passage?
高三英语阅读理解中等难度题查看答案及解析
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D Before I studied psychology, I used to think that people would laugh when funny things occurred．While I was right about that, I discovered there are lots of other psychological factors that make people laugh other than the funny part of a joke．When someone laughs at a joke, there will usually be more than one reason that makes him laugh—and the more reasons there are, the more powerful the joke will be．
I was attending a stand-up comedy show in Egypt, and when the man started to make fun of pedestrians crossing streets, everyone laughed their hearts out．The main reason those people strongly laughed was that almost all of them felt angry towards pedestrians who crossed streets carelessly．The joke wasn’t only funny, it also made the audience feel that they were right about being angry at those pedestrians．That is, people were laughing both because of the funny joke and because of the happiness experienced as a result of the psychological support they got．
The better a joke makes a person feel, and the more it includes other psychological factors, the more the person will like it．For example, if you envy one of your friends, and someone tells a joke that is funny and, at the same time, makes your friend seem stupid, then you will probably laugh at it louder than if you weren’t jealous of him．
In short, we don’t laugh only when we hear something funny; we also laugh when we experience some kind of happiness that results from the other psychological factors involved in the joke．I strongly discourage making fun of anyone or belittling someone to make someone else laugh．All I want to explain is that if your joke supports a person’s emotions, he will certainly like it a lot．
1. What did the author find out after studying psychology?
A．Only good jokes make people laugh
B．Many factors lead to people laughing．
C．Funny things can make people laugh
D．Laughter can make people healthy．
2.Why did the audience laugh loud at the pedestrians?
A．They played a trick on the pedestrians．
B．The pedestrians behaved in a funny way．
C．They could feel the pedestrians’ happiness．
D．Their emotion was approved of by the show．
3.What does the underlined word “belittling” probably mean?
A．Annoy
B．Blame
C．Look down on
D．Make up to
4.Which of the following best shows the structure of the passage?
A．
B．
C．
D．
高三英语阅读理解中等难度题查看答案及解析
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People often say you never get a second chance to make a first impression, and that's actually quite true.1. After all, making a good first impression is all about making others feel good when spending time with them．The following tips will help you make a positive impression every time．
● Dress appropriately
2.That means dressing up or putting on nice, clean, situation-appropriate clothes for social situations．It isn't difficult and it doesn't have to cost you much, either．
● Be aware of your body language
Words express very little of what you say．Body language can tell someone a lot about your mood and confidence level．3. Eye contact is an easy way to make others feel comfortable, important and special．Nervous body language can make others uncomfortable and anxious．Try to be aware of your body language when communicating with others．
● Respect the opinions of others
Not everyone will have the same opinion with you, and friendly disagreements can be a gateway to a great conversation. Respect other people's right to have their own opinion．Respect the opinions of others even if you disagree with them．4.
●5.．
People love talking about themselves, but generally, you want to be careful of taking over the conversation．By listening carefully to what others are saying, you are not only making them feel important, but you can gather clues you need to keep the conversation going and bridge to new topics．
A．Be a careful listener.
B．Show an interest in every person you meet.
C．Smile especially when first meeting someone.
D．Make sure you look nice whenever you meet someone new.
E．Meeting new people and starting conversations is often challenging.
F．Others will want to be with you and help you make a good impression.
G．Don't force others to believe what you believe or to see things only as you see them.
高三英语其他题中等难度题查看答案及解析
D. 
