Why Do People Blink Their Eyes?
People blink(眨眼) their eyes tens of thousands of times every day. Scientists have long believed blinking was an involuntary movement and served mainly to keep the eyeballs wet. But a new study suggests it has a more important purpose.
An international team of scientists from the University of California at Berkeley studied the blinking of human eyelids. The journal Current Biology published their findings. The team said they found that blinking “repositions our eyeballs so we can stay focused” on what we are seeing. They said that when we blink our eyelids, the eyes roll back into their sockets—the bony area that surrounds and protects the eyes. However, the researchers found the eyes don’t always return to the same position. They said this causes the brain to tell the eye muscles to reorganize our eyesight.
Gerrit Maus is the lead writer of the report. He serves as an assistant professor of psychology at Nanyang Technological University in Singapore. Maus said, “Our eye muscles are quite sluggish(遲緩的) and imprecise, so the brain needs to constantly adapt its motor signals to make
sure our eyes are pointing where they’re supposed to. Our findings suggested that the brain measures the difference in what we see before and after a blink, and commands the eye muscles to make the needed corrections.” The researchers said that without such corrections our surroundings
would appear unclear and even jumpy. They said the movement acts “l(fā)ike a Steadicam(攝影穩(wěn)定
器) of the mind.”
The researchers said they asked volunteers to sit in a dark room while staring at a small dot on a flat surface. They used special cameras to follow the volunteer’s blinks and eye movements. After each blink, the dot was moved one centimeter to the right. The volunteers did not notice this, but the brain did. It followed the movement and directed the eye muscles to refocus on the dot. After the dot was moved in this way 30 times, the volunteers’ eyes changed their focus to the place where they predicted it would be.
Professor Maus said, “Even though participants did not consciously register that the dot had moved, their brains did, and adjusted with the corrective eye movements. These findings add to our understanding of how the brain constantly adapts to changes, commanding our eye muscles to correct for errors in our bodies’ own hardware.”
1.According to the new study, blinking eyes can .
A. serve to keep the eyeballs wet B. reposition eyeballs to stay focused
C. consciously correct eye movements D. make our eyes adapt to motor signals
2.From the experiment, we can learn that .
A. volunteers could see the moving dot with special cameras
B. the eyeballs could stay in the place as they were predicted
C. participants were aware of the dot’s movements to the right
D. the brain commanded the eye muscles to refocus on the dot
3.The underlined word “register” in Paragraph 5 probably means .
A. realize B. refocus
C. reserve D. reason
4.This passage shows that .
A. eye muscles are quite inactive and imprecise
B. the research is of great value in the eye movement
C. the brain plays an important role in seeing things clearly
D. volunteers control their blinks to follow the changes of the dots
科目:高中英語 來源:河南省南陽市聯(lián)合體2016-2017學(xué)年高一下學(xué)期期末考試英語試卷 題型:閱讀理解
In my mind, there is a moving story about a skinny young boy who loved football with all his heart.
Practice after practice, he eagerly gave everything he had. Being half the size of the other boys, he got absolutely nowhere. Despite his hard training at all the games, this hopeful athlete sat on the bench and hardly ever played.
This teenager lived alone with his father, and the relationship between the two of them was very special. Even though the son was always on the bench, his father was always in the stands cheering. He never missed a game. This young man was still the smallest of the class when he entered high school. But his father continued to encourage him.
The young man loved football and was determined to try his best at every practice, and perhaps he’d get to play when he became a senior. All through high school he never missed a practice nor a game but remained a benchwarmer. Besides, his faithful father was always in the stands, always with words of encouragement for him. When the young man went to college, he decided to try out for the football team as a “walk—on”. Everyone firmly believed that he could never make the cut, but he did.
The news that he had survived the cut thrilled him so much that he rushed to the nearest phone and called his father. His father shared his excitement and was sent season tickets for all the college games. This persistent young athlete never missed practice during his four years at college, but actually he never got the real chance to play in a game.
It was at the end of his senior football season that the coach met him with a telegram. The young man read the telegram and he became totally silent. Swallowing hard, he mumbled to the coach, “My father died this morning. Is it all right if I miss practice today?” The coach put his arm gently around his should and said, “Take the rest of the week off, son. And don’t even plan to come back to the game on Saturday.”
Saturday arrived, and the game was not going well. In the third quarter, when the team was ten points behind, a silent young man quietly slipped into the empty locker room and put on his football gear. As he ran onto the sidelines (邊線), the coach and his players were surprised to see their faithful teammate back so soon. “Coach, please let me play. I’ve just got to play today,” said the young man.
The coach pretended not to hear him. There was no way he wanted his worst player in this close play—off game. But the young man insisted, and finally feeling sorry for the kid, the coach gave in. “All right,” he said. “You can go in.’’ Before long, the coach, the players and everyone in the stands could not believe their eyes. This little unknown, who had never played before, was doing everything right. The opposing team could not stop him. He ran, passed, blocked, and tackled like a star. His team began to succeed. The score was soon tied. In the closing seconds of the game, this kid got a pass and ran all the way for the winning touchdown.
Finally, after the stands had emptied, the coach noticed that this young man was sitting quietly in the corner all alone. The coach came to him and said, “Kid, you were unbelievably fantastic! Tell me what got into you? How did you do it?”
He looked at the coach, tears in his eyes, and said “Well, you knew my had died, but did you know that my dad was blind?” The young man swallowed hard and forced a smile, “Dad came to all my games, but today was the first time he could see me play, and I wanted to show him I could make it!”
1.What’s the writer’s attitude toward the young boy in this passage?
A. Appreciative. B. Critical.
C. Grateful. D. Negative.
2.From the passage, we can infer that .
A. the young man’s coach played an important role in his growth
B. the young man’s father had a great positive influence on him
C. not until his father passed away did the young man train hard
D. the young man’s road to success in football was always smooth
3.Why did the young man return to the match on Saturday?'
A. He hoped his dead father could be proud of his performance.
B. He thought he was much better than other players in his team.
C. He wanted to defeat the opposing team in this significant game.
D. He planned to make money to cure his father of his blindness.
4.What’s the best title of the passage?
A. A thrilling football match B. Determined father and son
C. The power of dreams D. The encouragement of a coach
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科目:高中英語 來源:安徽省宣城市2016-2017學(xué)年高一下學(xué)期期末調(diào)研測試英語試卷 題型:七選五
With time going by, people have come to understand the importance of protecting the environment. But they can’t deal with everything by themselves. Take small steps, and you can make a difference.
• Think Green. Think about the environment as you live your life. If you turn off lights and TV when leaving the room, you’ll save energy. 1..
• Shop Green. Shopping is fun, but buying things you don’t need is wasteful and even bad for the earth. 2.. And whenever possible, buy things locally made instead of those shipped from far away.
• Dress Green. What really matters is not the colour. 3.. So look for products made from environmentally friendly (環(huán)保的) materials.
• 4.. What’s better than learning about the environment? 5.. It can be as simple as using both sides of a piece of paper before you recycle it
A. Before you buy something, ask yourself how much you will use it.
B. Study Green.
C. It’s how the clothes were made.
D. You may care more about the qualities of the clothes.
E. Save it while you learn.
F. If you take shorter showers, you will save water.
G. Recycle more.
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科目:高中英語 來源:陜西省延安市大學(xué)區(qū)校際聯(lián)盟2016-2017學(xué)年高二下學(xué)期期中考試(B)英語試卷 題型:單詞拼寫
1.___________(浪漫主義的)poems are always popular with the youth.
2.All students without ______________(例外) must take the English examination.
3.I ___________(驚慌) when I saw smoke coming out of the engine.
4.Our English teacher is always ___________ (優(yōu)雅地) dressed.
5.Many people went to California during the 1900s to make a _____________(財富).
6.You all know who I am ___________(提及) to when I say “that nice man”.
7.The man must do many things, ________(包括) directing the traffic.
8.Early _______________(移民者) on the American continent were mostly Europeans.
9.The Sprifg Festival is the most important __________ (傳統(tǒng)) festival in China.
10.Did you go to watch the football match held in the _____(體育場)
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科目:高中英語 來源:安徽省蚌埠市2017屆高三7月月考英語試卷 題型:短文改錯
假定英語課課上老師要求同桌之間交換修改作文,請你修改你同桌寫的以下作文。文中共有10 處語言錯誤,每句中最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除或修改。 增加:在缺詞處加一個漏字符號(∧),并在其下面寫出該加的詞。
刪除:把多余的詞用斜線(\)劃掉。
修改:在錯的詞下畫一橫線,并在該詞下面寫出修改后的詞。
注意:1.每處錯誤及其修改均僅限一詞;
2.只允許修改 10 處,多者(從第 11 處起)不計分。
We are aiming to build a peaceful school. I thought it is every student’s duty to work hard to achieve this goal. As high school student, what should we do? First for all, we should love our school. Meanwhile, you should respect our teachers and obeying the rules in our school. Secondly, we should show our respect for our parents and do which we can help them. Besides, we classmates should also try to be kind and friendly. Most important, all of us must believe in each other and been honest in our daily life. And we will study even more harder and try out best to do all.
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科目:高中英語 來源:內(nèi)蒙古包頭市2016-2017學(xué)年高二下學(xué)期期末考試英語試卷 題型:短文填空
Last year, two days before Christmas, my friends called, telling me their kitchen caught fire, 1.(destroy) everything in it. I drove to their house, taking all the food that I had. They were so happy to see me, but felt 2.(embarrass) having nothing to give me in return.
I went home, very upset. 3.(actual) , I was also in a hard place financially and unable to do 4.(much) for them. I called a friend of mine about this,5. responded, “ These people mean a lot to you and I want to help them.” Since he had never met them, he requested me 6.(go) to the grocery store, all on him. At the check-out, I noticed him lacking money, so that I had to have some items taken back.
We were walking away 7. I heard a voice behind me asking the clerk, “ How much are those things? I decide to pay for them.” I turned around, thanked the kind man and 8. ( tell) him everything. He explained that he understood as he had lost his job the year before but now was working again. 9.tears in our eyes, all of us went away. It was such10.wonderful feeling to see folks step up when someone needed help, even a total stranger.
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科目:高中英語 來源:黑龍江省2016-2017學(xué)年高一下學(xué)期期末考試英語試卷 題型:書面表達
臨近期末,高一同學(xué)即將面臨著文理分科的選擇。假定你是李華,你同學(xué)Lucy給你來信說到了她對文理科選擇的困擾和焦慮。請你給她回信,安撫她的情緒并提出你的看法和建議。
注意:
1. 詞數(shù)100左右; 書信開頭和結(jié)尾已給出,不計入總詞數(shù)。
2. 內(nèi)容要點:
① 安撫她的情緒,勸她不必過于糾結(jié);
② 提出參考意見:認清自己興趣和優(yōu)勢,不盲從他人;向高年級的同學(xué)請教 ……
③ 提出看法:無論作何選擇都要努力才能實現(xiàn)自己的期望。
3. 可以適當(dāng)增加細節(jié),以使行文連貫。
可能用到的詞匯:焦慮anxiety;理性地 rationally;不辜負 live up to 盲目地 blindly
Dear Lucy,
I’m sorry to learn in your letter that you are upset about the coming choice of arts or science. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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科目:高中英語 來源:陜西省延安市大學(xué)區(qū)校際聯(lián)盟2016-2017學(xué)年高一下學(xué)期期中考試(B)英語試卷 題型:閱讀理解
Jean Driscoll can go faster in her wheelchair than the world’s best marathoners(馬拉松運動員) can run!
In April, Jean finished the Boston Marathon in 1 hour 34 minutes 22 seconds. That’s about 33 minutes faster than the winning male runner! She competed on the track, too. She was second in the 800 meter wheelchair race at the 1992 Olympics.
Jean doesn’t like to be told she’s brave. “I’m in sports because I’m a competitive person!” Jean was born with spina befida(脊柱裂), a birth illness that damages the spine(脊椎). She began to use a wheelchair to get around in high school. Then she tried wheelchair race and was amazed.” Players crashed into each other and fell out of their chairs,” she says, “It was fun.”
Jean tried other wheelchair sports. At the University of Illinois, her wheelchair basketball team won two national titles.
Now Jean coaches and teaches. She tries to get people to set goals. “When I sign my autograph(親筆簽名),says Jean, “I write, dream big and work hard.”
1.What made Jean take part in sports?
A. She was brave. B. She was competitive.
C. She was strong. D. She was disabled.
2.What kind of education did she receive?
A. High school. B. Junior middle school.
C. High education. D. Primary school.
3.What is Jean’s advice on how to succeed?
A. Work hard. B. Hope for the best.
C. Dream a lot. D. Have great wishes and work hard.
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科目:高中英語 來源:2017年全國普通高等學(xué)校招生統(tǒng)一考試英語(浙江卷精編版) 題型:完形填空
Alia Baker is a librarian in Iraq. Her library used to be a ____ place for all who loved books and liked to share knowledge. They ____ various matters all over the world. When the war was near, Alia was______that the fires of war would destroy the books, which are more ____ to her than mountain of gold. The books are in every language — new books, ancient books, ____ a book on the history of Iraq that is seven hundred years old.
She had asked the government for______to move the books to a _____place, but they refused. So Alia took matters into her own hands. _____, she brought books home every night,______her car late after work. Her friends came to _____her when the war broke out. Anis who owned a restaurant ___ to hide some books. All through the_____ , Alia, Anis, his brothers and neighbours took the books from the library, _____them over the seven-foot wall and _____them in the restaurant. The books stayed hidden as the war______. Then nine days laters, a fire burned the______to the ground.
One day, the bombing stopped and the_____ left. But the war was not over yet. Alia knew that if the books were to be safe, they must be ____ again while the city was _____. So she hired a truck to bring all the books to the houses of friends in the suburbs(郊區(qū)). Now Alia waited for the war to end and ____ peace and a new library.
1.A. meeting B. working C. personal D. religious
2.A. raised B. handled C. reported D. discussed
3.A. worried B. angry C. doubtful D. curious
4.A. practical B. precious C. reliable D. expensive
5.A. then B. still C. even D. rather
6.A. permission B. confirmation C. explanation D. information
7.A. large B. public C. distant D. safe
8.A. Fortunately B. Surprisingly C. Seriously D. Secretly
9.A. starting B. parking C. filling D. testing
10.A. stop B. help C. warn D. rescue
11.A. intended B. pretended C. happened D. agreed
12.A. war B. night C. building D. way
13.A. put B. opened C. passed D. threw
14.A. hid B. exchanged C. burnt D. distributed
15.A. approached B. erupted C. continued D. ended
16.A. restaurant B. library C. city D. wall
17.A. neighbours B. soldiers C. friends D. customers
18.A. sold B. read C. saved D. moved
19.A. occupied B. bombed C. quiet D. busy
20.A. dreamed of B. believed in C. cared about D. looked for
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