Shedding tears(流淚) is a natural way of making us feel more comfortable.When our eyes are made uncomfortable by some small pieces of pollution, or when we are cutting onions, or when we are exhausted(精疲力竭; 疲勞) and have “red-eyes” from overwork and late hours, tears form in our eyes to clean and refresh them.
Tears are also a sign of strong emotion.We cry when we are sad and we cry when we are happy.
And tears seem to be uniquely (惟獨) human.We know that animals also experience emotion ——fear, pleasure, loneliness——but they do not shed (流) tears.From this, we can conclude that tears are closely related to the emotional and biological make-up(結(jié)構(gòu);組成) of the human species.
Biologically speaking, tears are actually drops of saline fluid, which is a little bit salty, produced by a gland (腺) in the body.Because salt is an important component, tears may actually constitute the most conclusive evidence that the human animal is the end product of a long evolutionary process that began in the sea.
And it is clear that, in addition to (除了) the emotional benefits (好處), the shedding of tears has a specific biological function as well.Through tears, we can eliminate from our body certain chemicals which build up in response to stress and create a chemical imbalance(不平衡) in the body.Crying actually makes us feel better by correcting that imbalance and making us feel good again.And thus the emotional and biological functions of tears merge (合并) into one and make us even more “human” than we would otherwise be.
60、According to the passage, human beings may have originated (起源于) in_______.
A. the sea                B. the salt      C. chemicals    D. animals
61、Which of the following is NOT a function of tears?
A. Biological   B. Emotional    C. Political           D. Chemical
62、The underlined word “eliminate” probably mean_______.
A. add            B. produce      C. replace   D. remove
63、Which of the following is the best title of the passage?
A. Tears are a sign of strong emotion.
B. Tears are always making us feel more comfortable.
C. Tears are uniquely human.
D. Tears have certain biological function.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源: 題型:閱讀理解

Now that final exams are history, you seem to have that extra bounce. After all, winter  1   awaits you. Get off that couch and begin the more productive life you should be living  2    our help.

Spring Festival is a  3    time to test the bonds of romance, say, with a trip to France. This idea came to Su Enlu and his girlfriend one day. They were talking about the  4    of a weekend trip when Su said, half-jokingly, that they might just go to France.

 5     doing some online research and talking with people who'd been there, they decided to take the plunge. To prepare for it, they read French history and tested each other in  6     French language.

This has been one of the happiest  7     in our three-year relationship, said Su, a 22-year-old English major at the University of International Business and Economics.

Su saw no problem with asking his parents to  8     the trip for about 10,000 yuan from each side. "I'm seizing the day," he said. "Later, when I have that  9     money, I might not have time to enjoy it."

The couple  10     been to foreign countries. But in order to secure a visa, they went for travel agency to take care of their  11    . Moreover, they asked friends who study in France to be their contact person and arrange some cheap   12   during their stay abroad to save money as much as they can.

Some students, like 19-year-old freshman Nan Zhichao, have decided to use the winter holiday to get some  13    . Nan and a group of classmates are going on their own cycling tour of Hainan.

The Huazhong University of Science and Technology information major  14     the whole project himself. From booking accommodations   15    collecting mechanical supplies, to studying the weather forecast, to drawing out the route for each day, Nan worked hard to  16     every detail was right.

This trip is not only about pushing our limits,  17     about looking for adventure, said Nan. "It's also a testament to being adults, and part of a new generation of college students."

Now in Hainan, Nan's team is pedaling  18     in T-shirts and shorts, shedding some of the  19     they gained during the fall semester, and strengthening the bond of their friendships. Said Nan: "We now know each other more than we used to, even  20     months of living together."

(   ) 1. A. snow                 B. cold                        C. vacation           D. season

(   ) 2. A. to                             B. for                          C. at                     D. with

(   ) 3. A. great                  B. bad                         C. useful               D. helpful

(   ) 4. A. choice               B. possibility               C. break                      D. rest

(   ) 5. A. Before                      B. Within                     C. During             D. After

(   ) 6. A. advanced            B. basic                      C. middle             D. official

(   ) 7. A. times                 B. days                        C. months             D. seasons

(   ) 8. A. carry                 B. fund                        C. hold                 D. bring

(   ) 9. A. many                 B. much                             C. few                  D. little

(   ) 10. A. have               B. don’t                      C. are                   D. haven’t

(   ) 11. A. application               B. work                      C. plan                 D. job

(   ) 12. A. food               B. accommodations       C. clothes             D. trip

(   ) 13. A. money             B. sleep                      C. exercise            D. help

(   ) 14. A. panned             B. changed                   C. caught              D. led

(   ) 15. A. until               B. to                           C. for                   D. at

(   ) 16. A. make free        B. make colorful          C. make sure        D. make true

(   ) 17. A. but for             B. as for                             C. only also          D. but also

(   ) 18. A. on                   B. forward                   C. around             D. in

(   ) 19. A. meat               B. weight                            C. flesh               D. sweater

(   ) 20. A. after               B. in                           C. for                   D. over

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

Americans have never before exercised and dieted as eagerly as they are doing today.As a result, they do not only look younger and slimmer, but feel better.Because of increased physical fitness, life expectance in the nation has risen to seventy-three years, with fewer people suffering from heart disease, the nation's number one killer.

Jogging ( 慢跑 ), the easiest and cheapest way of improving the body, keeps over 30million people of all ages on the run.For the price of a good pair of running shoes, anyone anywhere can join the race.

Dieting, too, has become a national  pastime.Promoters of diets that eliminate eating one thing or another, such as fats or carbohydrates ( 碳水化合物 ), promise as much as 20- pound weight losses within two weeks.Books describing such amazing diets always head up ( 居……之首 )the best-seller lists because people who are overweight want to lose weight quickly and easily.

Nevertheless, jogging and dieting, carried to extremes, can be harmful.Many confused joggers overdo and finally suffer from ankle and foot damage.Dieting, fortunately, becomes only a temporary means for shedding a few  pounds while the body lose the balanced nutrition ( 營養(yǎng) )it requires, so most dieters cannot keep on diets.Above all, common sense should be the keystone for any dieting and exercise plan.

1.The main idea of this passage is that___________ .

       A.both jogging and dieting can improve your health

       B.exercise and improved diet has raised the American's life expectance

       C.people, who jog and diet wisely, will be healthier than those who do not

       D.diet and exercise harm rather than benefit health

2.According to the passage, which of the following statements is TRUE?

       A.Jogging can damage the body because it is too tough an exercise.

       B.Diets are so popular because they are on the best-seller lists.

       C.Americans now live to be 73 years old.                              

       D.Exercise and diet are more widespread in America than ever before.

3.It is implied but not stated that ___________ .

       A.heart disease is the number one killer among Americans

       B.exercise and dieting bring about spiritual as well as physical well-being

       C.people don't stay on a diet because it doesn't work

       D.a(chǎn) 20-pound weight loss within two weeks is too much for the body

4.The best title for this passage is ___________ .

       A.Jogging and Diet                                  B.Exercise and Health

C.Physical Fitness                                   D.Life Expectancy and Diet

查看答案和解析>>

科目:高中英語 來源:2012屆山東省微山一中高三10月月考英語試卷 題型:閱讀理解

We've all experienced a "good cry". Shedding (流) some tears can often make us feel better and help us put things in perspective. But why is crying beneficial? And is there such a thing as a "bad cry"?
The researchers analyzed the detailed accounts of more than 3,000 recent crying experiences and found that the benefits of crying depend entirely on the what, where and when of a particular crying episode (一段經(jīng)歷). The majority of persons reported improvements in their mood following a short period of crying. However, one third reported no improvement in mood and a tenth felt worse after crying. Criers who received social support during their crying episode were the most likely to report improvements in mood.
Research to date has not always produced a clear picture of the benefits of crying, in part because the results often seem to depend on how crying is studied. The researchers note several challenges in accurately studying crying behavior in a laboratory setting. Volunteers who cry in a laboratory setting often do not describe their experiences as making them feel better. Rather, crying in a laboratory setting often results in the study participants feeling worse;  this may be due to the stressful conditions of the study itself, such as being videotaped or watched by researchers. This may produce negative emotions, which neutralize (使無效) the positive benefits usually connected with crying.
However, these laboratory studies have provided interesting findings about the physical effects of crying. Criers do show calming effects such as slower breathing, but they also experience a lot of unpleasant stress, including increased heart rate and sweating. What is interesting is that bodily calming usually lasts longer than the unpleasant. The calming effects may occur later and overcome the stress reaction, which would account for why people tend to remember mostly the pleasant side of crying.
Research has shown that the effects of crying also depend on who is shedding the tears. For example, individuals with anxiety or mood disorders are least likely to experience the positive effects of crying. In addition, the researchers report that people who lack insight into their emotional lives actually feel worse after crying.
【小題1】 We can infer from the passage that __________________.

A.people don't like being seen crying
B.crying in public makes people feel better
C.a(chǎn) bad cry is as common as a good cry
D.a(chǎn) good cry can sometimes help us face problems rightly
【小題2】The beneficial effects of crying can be shown when _________.
A.your breath becomes slowB.you sweat a lot.
C.your face turns paleD.you are being watched
【小題3】Who will be least likely to feelworse after crying?
A.People who receive help in course of crying.
B.People who fail to understand their emotions.
C.People who are anxious and nervous.
D.People whose mood is not in order.
【小題4】The passage is mainly about ___________.
A.the types of cryingB.the way of crying
C.the psychology of cryingD.the causes of crying

查看答案和解析>>

科目:高中英語 來源:2015屆遼寧省丹東市高一上學(xué)期期末考試英語試卷(解析版) 題型:完型填空

Sarah came running in. She shouted happily, "Look what I ____36_____." She put a snake skin on the newspaper I was reading and it came so suddenly that it caused me to ____37_____. "Mom, look! Isn't it ____38_____?" said my seven-year-old daughter. I ____39_____ the snake skin and thought that it really wasn't pretty. Everything children see ____40_____is full of beauty in their eyes; they see only ____41_____ and excellence in the world until educated.

"____42_____ did the snake do this?" Sarah asked. I tried to seize the ____43_____ to teach my children that there was almost always something beyond the obvious. I wanted to tell them that there was something else going on ____44_____ what they saw in front of them. "Snakes shed (蛻) their skin because they need to renew themselves," I ____45_____.

"Why do they have to renew themselves?" Sarah asked.

My son Robert laughed and said, "Because they don't ____46_____ what they are and they want to be someone else." I politely ignored him and said that by shedding skins, we could ____47_____ the hidden reality.

"We often need to shed our skin, those coatings that we ____48_____ ourselves with," I said to my children, who listened very ____49_____, with their eyes wide open. "This snake ____50_____ needs this skin. It is probably too hard for him, or he probably doesn't think he looks as ____51_____in it as he once did. It's like buying a new ____52_____."

I'm sure this explanation will not ____53_____ the naturalists. But Sarah was getting to understand that renewal is part of ____54_____. She should learn from it what we need to keep and what we need to ____55_____.

1.                A.made          B.seized          C.caught   D.found

 

2.                A.think           B.jump           C.run  D.struggle

 

3.                A.interesting      B.smooth         C.beautiful  D.colorful

 

4.                A.stared at        B.took off         C.referred to    D.brought back

 

5.                                  A.by accident B.over and over again

C.in the future                      D.for the first time

 

6.                A.honesty        B.difference       C.value D.fear

 

7.                A.Where         B.Why           C.How D.When

 

8.                A.information     B.possibility       C.opportunity   D.question

 

9.                A.besides         B.for            C.without   D.a(chǎn)round

 

10.               A.talked          B.explained       C.whispered D.shouted

 

11.               A.keep          B.want           C.need D.like

 

12.               A.see            B.guess          C.ignore D.remember

 

13.               A.keep          B.store          C.cover D.improve

 

14.               A.properly        B.a(chǎn)ttentively      C.sadly D.a(chǎn)ngrily

 

15.               A.once more      B.a(chǎn)t times        C.right now  D.no longer

 

16.               A.nice           B.healthy         C.strong D.big

 

17.               A.hat            B.watch          C.suit   D.home

 

18.               A.move          B.satisfy          C.correct    D.defeat

 

19.               A.experience     B.a(chǎn)chievement    C.progress   D.competition

 

20.               A.throw out       B.hope for        C.find out   D.throw away

 

 

查看答案和解析>>

科目:高中英語 來源:河南省2010屆三下學(xué)期第一次月考 題型:閱讀理解

D

Americanshave neverbeforeexercisedand dieted as eagerly as they are doing today. As a result,they do not only look younger and slimmer,but feel better.Because of increased physical fitness,life expectance in the nation has risen to seventy-three years, with fewer people suffering from heart disease,the nation's number one killer.

Jogging (慢跑),the easiest and cheapest way of improving the body,keeps over 30million people of all ages on the run. For the price of a good pair of running shoes, anyone anywhere can join the race.

Dieting,too, has become a national  pastime.Promoters of diets that eliminate eating one thing or another,such as fats or carbohydrates (碳水化合物),promise as much as20- pound weight losses within two weeks. Books describing such amazing diets always head up (居…之首)the best-seller lists because people who are overweight want to lose weight quickly and easily.

Nevertheless,jogging and dieting, carried to extremes,can be harmful.Many confused joggers overdo and finally suffer from ankle and foot damage.Dieting,fortunately,becomes only a temporary means for shedding a few pounds while the body lose the balanced nutrition it requires,so most dieters cannot keep on diets.Above all,common sense should be the keystone for any dieting and exercise plan.

68.The main idea of this passage is that________.

A.both jogging and dieting can improveyour health

B.exercise and improved diet has raisedthe American's life expectance

C.people,who jog and diet wisely,will behealthier than those who do not

D.diet and exercise harm rather thanbenefit health

69.According to the passage,which of thefollowing statements is TRUE?

A.Jogging can damage the body becauseit is too tough an exercise.

B.Diets are so popular because they areon the best-seller lists.

C.Americans now live to be 73years old.

D.Exercise and diet are more widespreadin America than ever before.

70.It is implied but not stated that ________.

A.heart disease is the number one killeramong Americans

B.exercise and dieting bring about spiritual as well as physical well-being

C.people don't stay on a diet because itdoesn't work

D.a 20-pound weight loss within two weeks is too much for the body

71.The best title for this passage is _________..

A.Jogging and Diet     B.Exercise and Health

C.Physical FitnessD.Life Expectancy and Diet

 

查看答案和解析>>

同步練習(xí)冊答案