You open your eyes and mouth wide if you see a live rat in your bedroom but you wrinkle your nose and narrow your eyes if you see a dead one in the road. Why is that? Facial expressions are usually thought of as simple tools of communication. But in his book The Expression of the Emotions in Man and Animals, Charles Darwin proposed that they may prepare us to react to different situations when he noticed that some expressions seemed to be used across cultures and even species. Now Joshua Susskind and his colleagues at the University of Toronto, Canada, have put that idea to the test.

Susskind’s team wondered whether the expressions of fear might improve how sensory (感官的) information is acquired and so sharpen senses. Conversely disgust (厭惡) might weaken the senses, sheltering us from unpleasant sights and smells.

The researchers asked volunteers to complete various tests while holding a fearful, disgusted or neutral expression. In one test, they had to identify when a spot entered their sight. In another they were required to shift their focus as quickly as possible between two targets on a computer screen. It was also measured how much air the volunteers breathed in while expressing fear and disgust.

In each case the wide-eyed faces let significantly more of the world in. Volunteers with wide-open eyes detected surrounding objects more quickly and performed side-to-side eye movements faster. They also took in more air with each breath without any extra effort. An MRI (核磁共振) scan showed the nasal cavity (鼻腔) was enlarged while volunteers held this expression, which could be linked with a greater ability to absorb smells.

“These changes confer the idea that fear, for example, is a posture towards sensory sharpening while disgust a posture towards sensory rejection,” says Susskind. His team is already at work on experiments to explore to what extent the brain can use this extra information to enhance performance.

1.Charles Darwin’s book proposed that facial expressions might _____.

A. act as a simple tool of communication

B. get people ready to the changes of circumstances

C. be difficult to understand in different cultures

D. equip people with the knowledge of other species

2.In Joshua Susskind’s research, the researchers _____.

A. wondered whether there existed other expressions of fear

B. wanted subjects to use facial expressions to complete tests

C. wanted to test how much air subjects breathed in normally

D. wondered whether expressions of disgust weakened our senses

3.The underlined sentence in Paragraph 4 means that _____.

A. wide-eyed expressions would help you understand the world better

B. facial expressions might result in faster eye movements

C. wide-eyed expressions would help people breathe in more air

D. facial expressions might help people notice more things around

4.In the last paragraph, what might be the new thinking of facial expressions?

A. They might tell the brain how to make use of the facial information.

B. They might explain why people consider fear as a posture towards sharper senses.

C. They might provide extra information to brains thus enhancing performance.

D. They might clarify the relationship between brain and environments.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:內(nèi)蒙古2014-2015學(xué)年高二下學(xué)期第二次(6月)月考英語試卷 題型:短文改錯

假定英語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文章.文中共有10處錯誤,每句中最多有兩處。錯誤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:在錯的詞下劃一橫線,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。

Three years ago, I became a student in an ordinary school. Disappointing as I felt at the shabby campus and the poorly-equipped classroom, I find the teachers patient and considerate. Besides, I enjoyed the friend atmosphere in class. I decided to make the best for it. I worked hardly and got along well with teachers and classmates. Whenever I had difficulties, they were always available. Soon, I became one of the top student in my class, what greatly increased my confidence and I got more motivated.

My experiencee tells me that it is not what you are given but that how you use it that determine who you are.

查看答案和解析>>

科目:高中英語 來源:湖北省襄陽市2017屆高三下學(xué)期第三次適應(yīng)性考試英語試卷 題型:閱讀理解

A “smart drug” taken by students to improve their performance really does work, scientists have found.

The drug modafinil(莫達非尼) is currently used to treat sleep disorder, but it is widely used off-label by students to help them revise for exams or focus on long essays.

Until now, there has been a lack of clear evidence over whether it can actually boost concentration and alertness. But a new analysis of the research revealed it does improve planning and decision making, flexibility, learning and memory, and even creativity.

The findings raise serious ethical(處方的,道德的) questions about whether modafinil should be “classified, tolerated or condemned”, scientists said.

Professor Guy Goodwin, President of the European College said: “It’s the first real example of a ‘smart drug’, which can genuinely help, for example, with exam preparation.”

Previous ethical discussions around smart drugs assumed major effects of the drugs before it was clear that there were any, he added.

He continued “If correct, the present update means the ethical debate is real: how should we classify, tolerate or condemn a drug that improves human performance?”[

A fifth of university students across the country claim to have taken smart drugs, according to surveys by student newspaper The Tab.

And the use of modafinil is most widespread at Oxford University, where a quarter of students have reported to have used it.

Over the years, universities have discussed how best to respond to the use of smart drugs, and some have suggested Olympic-style doping tests for students sitting exams.

Professor Goodwin said there should be a society-wide debate on how modafinil should be licenced and regulated, as well as what universities should do about its use.

He said: “Regulation has been and remains uncertain. We cannot know either if demand for modafinil in the same societies will actually be significant, whether society will be more accepting and how regulation will then be framed.”

1.Who are likely to turn to the “smart drug” modafinil?

A. Children who lack strength.

B. Students who have poor memory.

C. Old people who have poor sight.

D. Patients who have a heart disease.

2.Why does the writer refer to the students of Oxford University?

A. To show smart drugs enjoy popularity among college students.

B. To prove Oxford University students suffer from a heavy load.

C. To tell us smarts drugs use have spread to England.

D. To explain why Oxford University students are clever.

3.What is the topic of passage?

A. “Smart drugs” also have side effects.

B. Students are addicted to “smart drugs”.

C. A “Smart drug” raises ethical questions.

D. A more effective “smart drags” should be developed.

4.What does Professor Goodwin think of ‘smart drug’ modafinil?

A. Modafinil used as a ‘smart drug’ should be forbidden.

B. Regulation on modafinil remains to be discussed.

C. Our society should accept the use of modafinil.

D. Regulation on modafinil being used as a “smart drug” is necessary.

查看答案和解析>>

科目:高中英語 來源:山東省棗莊市東校區(qū)2016-2017學(xué)年高一5月月考英語試卷 題型:完形填空

I arrived at my mother’s home for our Monday family dinner. Mother was ______ quilt after quilt from the boxes, ______ showing me their beauties. She was preparing for a quilt show at the Elmhurst Church. When we began to _____ and put them back into the boxes, I noticed something at the _____ of one box.

“What is this?” I asked.

“Oh?” Mom said, “That’s Mama’s quilt.”

I ______ the quilt. It looked as if a group of school children had pieced it together; ____

designs, ______ pictures, a winding line on the right.

“Grandmother made this?” I said, ______. My grandmother was a master at making quilts. This ______ didn’t look like any of the quilts she had made.

“Yes, right before she died. I ______ it home with me last year and made some ______,” she said. “I’m still _____ on it. See, this is what I’ve done so far.”

I looked at it more ______. At the center of the quilt, she had sewn a piece of ______with these words:  “My mother made many quilts. She didn’t get all lines _____. But I think this is beautiful. I want to see it ______. Her last quilt.”

“Oh, this is so nice, Mom,” I said. It ______ to me that by completing my grandmother’s quilt, my mother was honoring her own ______. I realized, too, that I held in my hands a family

____. It started with the loving hands of one woman, and ______ with the loving hands of another.

1.A. splitting up B. picking up C. pulling out D. showing off

2.A. proudly B. frankly C. politely D. generously

3.A. push B. lift C. cover D. fold

4.A. top B. bottom C. back D. front

5.A. pressed B. spread C. packed D. raised

6.A. perfect B. delicate C. mature D. irregular

7.A. childish B. elegant C. classic D. horrible

8.A. excited B. depressed C. surprised D. delighted

9.A. almost B. certainly C. partly D. probably

10.A. robbed B. bought C. dropped D. brought

11.A. decisions B. money C. changes D. mistakes

12.A. working B. depending C. living D. sitting

13.A. disappointedly B. closely C. nervously D. gratefully

14.A. paper B. bread C. wood D. cloth

15.A. strong B. hidden C. straight D. bent

16.A. finished B. removed C. produced D. prepared

17.A. happened B. appeared C. occurred D. struck

18.A. skill B. mother C. show D. quilt

19.A. shame B. responsibility C. desire D. treasure

20.A. continued B. stopped C. declined D. disappeared

查看答案和解析>>

科目:高中英語 來源:重慶一中2016-2017學(xué)年高二下學(xué)期期中考試試卷 英語 Word版含答案 題型:短文改錯

假定英語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。作文中共有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:在缺詞處加一個漏子符號(∧)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:在錯的詞下劃一橫線,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。

For many people, music has always been part of life, and they listen to music on radio, on iPod and on Internet. As is vividly showing in the picture, the music fan is trying to download songs he enjoys. But the website requires payment first every time he wanted to download something, that annoys him. How he wishes the music is all free!

Many people are used to free music being downloaded from the Internet without realizing they have done harm for others’ right. Music artists work very hardly to compose music. If not paid, he will lose enthusiasm to go ahead, and gradually we will find beautiful musics nowhere.

查看答案和解析>>

科目:高中英語 來源:四川省2017屆高三5月月考英語試卷 題型:短文改錯

假定英語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。

The Dragon Boat Festival has a history of over 2,000 years. There are many tales about their origin. The most popular is that the festival is celebrated in honor of Qu Yuan. Qu Yuan was more concerned about his country but was not understanding by the rulers. Feeling desperately, he jumped into the Miluo River on the 5th day of the 5th lunar month, 278 BC. Before he died, the fishermen sailed their boats to look up for his body. People throw zongzi into the water, hoping to keep fish attacking his body. That’s because people later celebrate the festival through such activity as dragon boat racing and eating zongzi on that special day.

查看答案和解析>>

科目:高中英語 來源:四川省2017屆高三5月月考英語試卷 題型:閱讀理解

Theme Parks on the Gold Coast

Gold Coast theme parks come in all shapes and sizes and whether you like roller coasters or patting furry animals,you’re sure to find something.

Dream world

It is home to the greatest number of traditional theme park rides on the coast with all the kid friendly rides, roller coasters, water slides, bumper cars and more gravity defying than you could want. If there’s the most perfect theme park you’re after, Dreamworld is the one for you.

Contact Information:

Phone: +61755881111

Address: Dreamworld Parkway Coomera Queensland 4209

Movie World

Movie World is the only movie-related theme park in Australia. With one of the best roller coasters on the coast and a good handful of movies related to rides, you’ll experience a fun-filled adventure with some famous scenes in the films of Hollywood.

Contact Information:

Phone: 0755738485

Address: Pacific Motorway, Oxenford, Queensland 4210

Sea World

With an obvious emphasis on creatures that live in the water. Sea World has a fantastic range of fish, sharks, dolphins, seals, polar bears, and other animals on display in realistically natural environments. Many of the animals will also entertain you in some water shows. It may be the best all-round theme park on the Gold Coast.

Contact Information:

Phone: 0755882222

Address: Sea World Drive, Main Beach, Cold Coast, Queensland 4217

Wet ‘n’ Wild

With nothing but amazing water slides, swimming pools and “dive in movies”,Wet ‘n’ Wild is one of the greatest water parks in Australia, if not the world. In winter everything is heated, so you won’t get cold, and on a hot Gold Coast summer day, you’ll have a hard time finding a better place. Each year the team at Wet ‘n’ Wild come up with new and exciting rides to thrill and chill you.

Contact Information:

Phone: 0755561660

Address: Pacific Motorway, Oxenford, Gold Coast, Queensland 4210

1.Which of the following about Movie World is TRUE?

A. It is the best all-round theme park on the Gold Coast.

B. It has lots of traditional theme park rides on the coast.

C. It has many amazing water slides and “dive in movies”.

D. It can help visitors know mom movies related to rides.

2.If you want to watch water show of animals, you should dial .

A. 0755561660 B. 0755882222

C. 0755738485 D. +61755881111

3.If you don’t want to get cold in winter, you can go to .

A. Dreamworld B. Movie World

C. Wet ‘n’ Wild D. Sea World

查看答案和解析>>

科目:高中英語 來源:內(nèi)蒙古鄂爾多斯市2017屆高三模擬考試英語試卷(有答案) 題型:短文填空

A smiling face with tears, or “Tears of joy”, was chosen as the most popular emoji globally in 2016, according to a report1.(publish)by Chinese tech startup Kika.

In 2015,emoji was the country’s fastest-growing language in the UK and “Tears of joy”also became the Oxford English Dictionary’s word of the year, 2.(make)it popular on social media worldwide.

As a language expert pointed out, the reasons3.this are as follows. For one thing, with the development of the Internet, especially the 4.(popular)of smartphones, English alone is proving not enough to meet the needs of 21st-century digital communication. For5., emojis can offer greater freedom than verbal language. Meanwhile, compared with text messages, they are often more intuitive(直觀的)and 6.(simple),which is also the reason why more and more People choose7.(express)their emotions and ideas by using emojis.

Even if you don’t send emojis yourself, you will8.(probable)receive them.

However, nobody can definitely-tell 9.emojis will finally come to look something more like traditional language that we understand and use daily some day or they are just in fashion for10.while like many things. “After all, it’s an addition to language rather than a language itself,”Dr Drummond says.

查看答案和解析>>

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(北京卷正式版) 題型:書面表達

第二節(jié) (20 分)

假設(shè)你是紅星中學(xué)高三學(xué)生李華,請根據(jù)以下四幅圖的先后順序,寫一篇英文周記,記錄畢業(yè)前夕你們制作以“感恩母!睘橹黝}的畢業(yè)紀念視頻的全過程。注意:詞數(shù)不少于60。提示詞:視頻video

查看答案和解析>>

同步練習(xí)冊答案