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题型:阅读理解-阅读单选 难度:0.65 引用次数:137 题号:12335932

A recent study suggests that vitamin D pills can help speed up the time taken for burns to heal, and prevent scarring(结疤). The vitamin, which is produced naturally in the body when the skin is exposed to sunshine, is believed to help protect against burning.

Previous studies have shown that vitamin D pills help decrease redness and swelling after sunburn, and may be one of the reasons why the body produces the chemical.

The research from Birmingham University, has found they may also help relieve other types of burn. Researchers monitored 38 patients who had suffered serious burns for a year and recorded their levels of vitamin D. They found that those with the highest levels of vitamin D had better wound healing and fewer scars.

Professor Janet Lord said: “Low vitamin D levels were associated with worse results in burn patients including life-threatening infections(感染),death and delayed wound healing. Major burn injury severely reduces vitamin D levels and adding this vitamin back may be a simple, safe and cost-effective way to improve the condition for burn patients.” Professor Lord and her team are now focusing on finding out why there is a rapid loss of vitamin D in patients immediately following burn injury and hope that they may be able to prevent this in future.

The amount of reduction in patients’ vitamin D levels was not related to the severity(严重程度) of the burn, so levels may also be decreased in minor burn injury, suggesting taking vitamin D pills could also help people with everyday burns. Public Health England now recommends that all Britons take vitamin D pills in the winter because it is impossible to make sufficient quantities in the darker months.

1. What does the new study find?
A.People with low vitamin D levels get burned easily.
B.Vitamin D helps with the recovery from burn injury.
C.Vitamin D pills aid in reducing the swelling from burns.
D.Vitamin D is more beneficial to serious burns than minor burns.
2. What can we learn from the last two paragraphs?
A.The severity of one's burn reflects his vitamin D levels.
B.Vitamin D pills are more needed in the autumn months.
C.Burn patients lacking vitamin D are at high risk of infection.
D.Minor burns have no effect on patients’ vitamin D levels.
3. What does the underlined word “they” in paragraph 3 refer to?
A.The researchers.B.Vitamin D pills.
C.Previous studies.D.Some kinds of vitamins.
4. Which of the following can be the best title of the text?
A.Vitamin D: A Necessity for Our Health
B.Vitamin D Pills: When Are They Needed?
C.Vitamin D: How Much Does the Body Need?
D.Vitamin D Pills: Heal Burns &. Prevent Scarring

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【推荐1】Have you ever played a computer game for a long time and then kept seeing the game’s images afterward? This happened to me with the classic shape-falling game Tetris (俄罗斯方块), created in 1985 by Alexey Pajitnov.

Feeling stressed one evening, I turned on my Switch to find a game to play and relax with. That’s when I discovered Tetris. Before I knew it, I was obsessed. Even when I stopped, my brain was still playing, with the blocks falling in my mind. I started looking at objects in the real world and thinking about how they could be moved and stacked(堆叠) together. I even dreamed about Tetris. I was experiencing the common "Tetris effect".

Introduced by journalist Jeffrey Goldsmith in his 1994 Wired magazine article called This Is Your Brain on Tetris, the effect has been observed by psychologists and researchers. The lasting images of Tetris are due to the "Zeigarnik effect", in which people have better memories of uncompleted tasks than those of completed ones. Tetris, being a game that technically never ends, keeps you thinking of the game’s unfinished task, reported Tech Times. And the catchy music stays with you, too.

There are also positives to the Tetris Effect. In his 1991 study, psychologist Richard Haier at the University of California found that continuously playing Tetris resulted in the thickness of the cerebral cortex (大脑皮层) increasing, which improves brain efficiency(效率), reported psychology website Practical Pie. Haier’s discovery got Tetris put into the Guinness World Records Video Gamer’s Edition 2008, as the "first video game to be proven to improve brain functioning and efficiency".

Tetris has also been researched for use as a treatment for people suffering from trauma (创伤). The Yale Scientific Magazine reported that researchers at John Radcliffe Hospital in Oxford, UK, found that playing Tetris appeared to reduce intrusive (侵入性的) memories in the short term for individuals affected by motor vehicle accidents.

So, the next time you want to play a computer game, why not try the classic Tetris and see if it improves your brain function? But he warned, you’ll likely be seeing falling blocks everywhere.

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A.Quite shocked.B.Extremely interested.
C.Highly satisfied.D.Very curious.
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A.It is connected to the way our memory functions.
B.It is an uncommon occurrence among children.
C.It can cause the "Zeigarnik effect".
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A.Improved memory.
B.Lifted mood.
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D.Relief from painful experiences.
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A.Serious.B.Amusing.
C.Worried.D.Doubtful.
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【推荐2】When you swim in the sea, have you ever accidentally drunk the seawater? How did it feel? It must have tasted salty. So, why is the seawater salty?

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Some theories explain that seawater comes from rainwater that falls and flows through rivers and estuaries (河口) and then the seawater fully fills the sea and again forms clouds because of evaporation (蒸发). When we talk about this, we talk about the rainwater cycle. But when the rainwater cycle occurs, the water that passes through the river carries mineral salts. These mineral salts are obtained from various places of the land starting from rocks and soils that the rainwater flows through. These mineral salts make seawater salty, so the salinity of seawater is different in each part of the world. But it is certain that seawater is salty or has high salinity.

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C.Rain.D.Cloud.
3. What can we know about the Red Sea?
A.Its salinity is higher than that of the Dead Sea.
B.The climate there causes the highest salt level.
C.People are in danger when swimming there.
D.The land around it contains the most salt.
4. Which is the most suitable title for the text?
A.The reason why the seawater tastes salty
B.The reason why the Dead Sea is not a sea
C.The reason why the rainwater cycle occurs
D.The reason why the sea looks blue and green
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Tears are good for your eyes. In fact, without them, your eyes wouldn’t even be able to move. Some people say tears help us in other ways, too. Maybe you know someone who likes to watch sad movies in order to “have a good cry”. It hasn’t been proven, but tears may be good not only for your eyes but also for your emotional health as well.

We generally only notice tears when we cry, but we have them in our eyes all the time. Tears affect how we see the world while at the same time protecting our eyes from it. Without this liquid covering them, our eyes would be at risk of infection. In addition, we need tears in order to see. The cornea (角膜) of the eye does not have a perfectly smooth surface. Tears fill in the holes in the cornea and make it smooth so that we can see clearly. Without tears, the world would look very strange to us.

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1. When do we have tears in our eyes?
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2. How do tears help us see clearly?
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3. How many kinds of tears do we have?
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