A new study says one part of the human brain may become smaller as the result of a condition known as jet lag . Jet lag results from flying long distances in an airplane . People with jet lag may feel extremely tired for several days . They may also have problems thinking clearly and remembering .

Recently a researcher at the University of Bristol in Britain reported the findings of his jet lag study , which involved twenty young women who worked for international airlines . They had served passengers on airplanes for five years . These flight attendants flew across many countries and at least seven time zones . In the study , the flight attendants had different amounts of time to recover from jet lag . Halt the women spent five days or fewer in their home areas between long flights . The other half spent more than fourteen days in their home areas .

The researcher took some saliva (唾液) from the women’s mouths to measure levels of a hormone (荷爾蒙) that increases during stress . He tested them to see if they could remember where black spots appeared on a computer screen . And he took pictures of their brains to measure the size of the brain’s temporal lobes (腦葉).

It was found that the women who had less time between flights had smaller right temporal lobes . This area of the brain deals with recognizing and remembering what is seen . The same group performed worse and had slower reaction times on the visual memory test . And their saliva samples showed higher levels of stress hormones .

The researcher believes the brain needs at least ten days to recover after a long trip . He says airline workers told him their ability to remember got worse after working on planes for about four years . Other studies have shown increased feelings of stress can cause a loss of cells in the part of the brain that controls memory .

Scientists say more tests are needed to study the effects of jet lag on the brain . They want to find out if too much jet lag could permanently affect memory .

 

57．According to the text , jet lag        .

       A．can cause difficulties in speaking

       B．can be caused by flying over several time zones

       C．can be only found in flight attendants

       D．can make people feel tired for a few weeks

58．It can be inferred from the text that        .

       A．the conclusion is refused by many scientists

       B．scientists fear that this research is not done properly

       C．every scientific conclusion needs the support from many tests

       D．the women who were examined in the research were not healthy

59．From the result of the research we can see that        .

      A．the women who have longer rest at home show better memory

       B．the women who fly in short time have smaller right temporal lobes

       C．the women who have longer flights fail the memory test

       D．the women who rest more than 14 days produce more hormones

60．What is the subject discussed in the text ?

       A．The cause of jet lag .

       B．A story of a group of flight attendants .

       C．The importance of having enough rest after flights .

       D．A research about the effects of jet lag on the brain .

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：江西省南昌外國語學(xué)校2011屆高三10月月考英語試題 題型：050

閱讀理解

　　Tattoos(紋身)and body piercings(穿洞)have moved up on the trend list in recent years．Around Western schools lots of teens are sporting new holes and flesh ink．Like all other subjects, we'll surely be faced with such situation．To get a better view of what has happened in the West, let's sit down and hear what they say．

　　Kerstin Otto from Washington：

　　The hotter it gets and the more layers of clothing disappear, the more tattoos and piercings appear on various places of the human body, I wouldn't be caught dead with a snake tattooed on my ankle or with a piece of metal stuck in my belly button．

　　Erin from Indiana：

　　I think body piercing is cool．In most situations, you don't really have to worry about it getting torn out．I go to Noblesville High School．I am a sophomore(that is the l0th grade)．Body piercing can be cool, only if it is not taken to too much of an extent．I would not want to get my nose pierced, just because I think I'll look bad．But that is my personal opinion．I guess that type of thing is a cultural difference．

　　Tiara from Indiana：

　　I personally think body piercing is sickening．If there were supposed to be holes in your body, you would have been born with them．I do, however, think that ear piercing, is not wrong．There is a difference between ear piercing and belly button piercing．Ear piercing is not nearly as dangerous．I would be sick if someone stuck a needle in my belly button．

　　Lee from Illinois：

　　Hi!I live in Illinois．I am 23．I have 12 tattoos and three piercings．I love my tattoos and consider myself an art collector．You would be surprised at who has given me the thumbs-up on my art work．People on the street stop me to look at that on my leg．Most of them don't know what it is．They just think the work itself is great．

　　Subotai from California：

　　I'm not prohibitive(禁止)of self-expression, but when I see high school students getting these piercings, I really wonder．In some cases, the drive is deeper and darker than mere fashion．A friend of mine tried piercing her own tongue with a safety pin．It got infected and she had a tongue the size of a cow's．

　　Nagib from Washington：

　　I wanted an earring．My friends had them and it looked like a cool thing．I wanted to get a nose ring, but my mum wouldn't let me．Now I'm glad I didn't get it．I just wanted a little stud, but I wouldn't have looked good with it．

　　Jackson from Ohio：

　　I don't think it's wrong, but when people do it all over the place like their face and everything －I think that's ridiculous．People who get the big dragons that cover your whole body－I don't think that's necessary．When I see naked chicks on guys, I think．“You have no respect for women．”

　　Brittney from New York：

　　You don't want to do stuff to your body．You don t need to do that because you were made perfect．You don't need to add piercings．If it will make you feel beautiful and you really feel like you need to do it for yourself, then okay．If it really makes a big difference impacting your self-esteem and how you are towards others, then do it．But otherwise, don't mess with what you got．Maybe you should try something more substantial(充實(shí)的)to find beauty in yourself．

(1)

Who is wholeheartedly lost in tattoos and piercing?

[　　]

A．

Tiara

B．

Erin

C．

Nagib．

D．

Lee．

(2)

Who doesn't think tattoos and piercing are beautiful?

[　　]

A．

Jackson．

B．

Brittney．

C．

Tiara．

D．

Nagib．

(3)

We can conclude that ________．

[　　]

A．

tattoos and piercing are a new kind of elegant art

B．

all the teachers in the West are in favor of tattoos and piercing

C．

everything is changeable with time going on

D．

it is necessary to live with all different views of beauty

(4)

The best title for this passage is probably ________．

[　　]

A．

Body Art or Damage

B．

Damage to the Youth's Body

C．

Young People's Different Curiosities

D．

A Great Anxiety About Young People

查看答案和解析>>

科目：高中英語 來源：江西省八校2010屆高三下學(xué)期4月聯(lián)考 題型：閱讀理解


B
Piercings（穿洞）have moved up on the trend list in recent Tattoos（紋身）and body years. Around Western schools lots of teens are sporting new holes and flesh ink. Like all other subjects, we’ll surely be faced with such situation. To get a better view of what has happened in the West, let’s sit down and hear what they say.
Kerstin Otto from Washington:
The hotter it gets and the more layers of clothing disappear, the more tattoos and piercings appear on various places of the human body, I wouldn’t be caught dead with a snake tattooed on my ankle or with a piece of metal stuck in my belly button.
Tiara from Indiana:
I personally think body piercing is sickening. If there were supposed to be holes in your body, you would have been born with them. I do, however, think that ear piercing, is not wrong.  There is a difference between ear piercing and belly button piercing. Ear piercing is not nearly as dangerous. I would be sick if someone stuck a needle in my belly button.
Lee from Illinois:
Hi! I live in Illinois. I am 23. I have 12 tattoos and three piercings. I love my tattoos
and consider myself an art collector. You would be surprised at who has given me the thumbs-up on my art work. People on the street stop me to look at that on my leg. Most of them don’t know what it is. They just think the work itself is great.
Nagib from Washington:
I wanted an earring. My friends had them and it looked like a cool thing. I wanted to get a nose ring, but my mum wouldn’t let me. Now I’m glad I didn’t get it. I just wanted a little stud, but I wouldn’t have looked good with it.
Jackson from Ohio:
I don’t think it’s wrong, but when people do it all over the place like their face and everything —I think that’s ridiculous. People who get the big dragons that cover your whole body—I don’t think that’s necessary. When I see naked chicks on guys, I think. “You have no respect for women.”
Brittney from New York:
You don’t want to do stuff to your body. You don t need to do that because you were made perfect. You don’t need to add piercings. If it will make you feel beautiful and you really feel like you need to do it for yourself, then okay. If it really makes a big difference impacting your self-esteem and how you are towards others, then do it. But otherwise, don’t mess with what you got. Maybe you should try something more substantial（充實(shí)的）to find beauty in yourself.
60. Who is wholeheartedly lost in tattoos and piercing?
A. Tiara           B. Kerstin           C. Nagib.           D. Lee.
61. Who doesn’t think tattoos and piercing are beautiful?
A. Jackson.          B. Brittney.           C. Tiara.           D. Nagib.
62. We can conclude that ________.
A. tattoos and piercing are a new kind of elegant art
B. all the teachers in the West are in favor of tattoos and piercing
C. everything is changeable with time going on
D. it is necessary to live with all different views of beauty
63. The best title for this passage is probably _________.
A. Body Art or Damage                    B. Damage to the Youth’s Body
C. Young People’s Different Curiosities       D. A Great Anxiety About Young People

查看答案和解析>>

科目：高中英語 來源：2010—2011學(xué)年江西省吉安市高一下學(xué)期期末考試英語試卷 題型：閱讀理解

At EF – English First, we aim to provide the best English language training program and teachers are at the heart of our leaning system. EF has over 100 schools in 60 cities throughout China, and it is well – known in China. EF is looking for native English speakers with teaching experience to help Chinese people learn English well. Our English teaching principles focus on practice, confidence building and practical application of the language. While teaching English with EF, you will continue to develop as a teaching professional and experience life in this great nation.
As soon as you walk into an EF school, you will understand why creating a welcoming learning environment is important to how we teach English. Our schools have well – equipped, modern classrooms, computer labs, and teaching preparation arcas. Our teachers receive a complete modern teaching program, popular classroom – based training to prepare them to teach to our high standards.
A professional package for an international teaching professional.
Our package includes:
◆High salary                                                 ◆Flight payment
◆Health insurance                                        ◆Living place & food help
◆Generous paid vacation + national holidays ◆Working visa (簽證)
◆Help upon arrival                               ◆Teacher training & development
◆Chances of being raised to higher ranks
Set up in 1965 with they duty to “break down difficulties in language, culture and geography”, EF has helped over 15 million stud tens, learn a new language and travel in foreign countries. EF was the Official Language Training Services Supplier of the Beijing 2008 Olympic Games and one of the largest employers of English teachers in China. EF works in one of today’s fastest growing industries – education – and promises teachers a chance to make a real difference.
【小題1】What does EF stand for?

A．English Farm.B．English First.C．English Fit.D．English Fact.
【小題2】Where will the teachers at EF schools work?
A．In 60 cities in China.B．In the middle of China.
C．In 100 cities in China.D．In the countryside of China.
【小題3】What kind of person can probably the chosen as a teacher by EF?
A．A native Frenchman with working visa.
B．A native Englishman who lived in China.
C．A native American who wants to help others.
D．A native English speaker with teaching experience.
【小題4】The professional package includes the following EXCEPT          .
A．medical insuranceB．high salary
C．unemployment insuranceD．help when arriving
【小題5】What is the main idea of the last paragraph?[
A．It is about EF – English First.
B．It is about traveling in foreign countries.
C．It is about the Beijing 2008 Olympic Games.
D．It is about difficulties in language, culture and geography.

查看答案和解析>>

科目：高中英語 來源：20102011學(xué)年江西省吉安市高一下學(xué)期期末考試英語試卷 題型：閱讀理解

At EF – English First, we aim to provide the best English language training program and teachers are at the heart of our leaning system. EF has over 100 schools in 60 cities throughout China, and it is well – known in China. EF is looking for native English speakers with teaching experience to help Chinese people learn English well. Our English teaching principles focus on practice, confidence building and practical application of the language. While teaching English with EF, you will continue to develop as a teaching professional and experience life in this great nation.

As soon as you walk into an EF school, you will understand why creating a welcoming learning environment is important to how we teach English. Our schools have well – equipped, modern classrooms, computer labs, and teaching preparation arcas. Our teachers receive a complete modern teaching program, popular classroom – based training to prepare them to teach to our high standards.

A professional package for an international teaching professional.

Our package includes:

◆High salary                                                 ◆Flight payment

◆Health insurance                                        ◆Living place & food help

◆Generous paid vacation + national holidays ◆Working visa (簽證)

◆Help upon arrival                               ◆Teacher training & development

◆Chances of being raised to higher ranks

Set up in 1965 with they duty to “break down difficulties in language, culture and geography”, EF has helped over 15 million stud tens, learn a new language and travel in foreign countries. EF was the Official Language Training Services Supplier of the Beijing 2008 Olympic Games and one of the largest employers of English teachers in China. EF works in one of today’s fastest growing industries – education – and promises teachers a chance to make a real difference.

1.What does EF stand for?

       A．English Farm.      B．English First.       C．English Fit.          D．English Fact.

2.Where will the teachers at EF schools work?

       A．In 60 cities in China.                              B．In the middle of China.

       C．In 100 cities in China.                            D．In the countryside of China.

3.What kind of person can probably the chosen as a teacher by EF?

      A．A native Frenchman with working visa.

       B．A native Englishman who lived in China.

       C．A native American who wants to help others.

       D．A native English speaker with teaching experience.

4.The professional package includes the following EXCEPT          .

       A．medical insurance                                 B．high salary

       C．unemployment insurance                      D．help when arriving  

5.What is the main idea of the last paragraph?[

       A．It is about EF – English First.

       B．It is about traveling in foreign countries.

       C．It is about the Beijing 2008 Olympic Games.

       D．It is about difficulties in language, culture and geography.

 

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

Tattoos（紋身） and body piercing（穿洞） have moved up on the trend list in recent years. Around Western schools lots of teens are sporting new holes and flesh ink. Like all other subjects, we’ll surely be faced with such situation. To get a better view of what has happened in the West, let’s sit down and hear what they say.

Kerstin Otto from Washington:

The hotter it gets and the more layers of clothing disappear, the more tattoos and piercing appear on various places of the human body, I wouldn’t be caught dead with a snake tattooed on my ankle or with a piece of metal stuck in my belly button.

Erin from Indiana:

I think body piercing is cool. In most situations, you don’t really have to worry about it getting torn out. I go to Noblesville High School. I am a sophomore （that is the l0th grade）. Body piercing can be cool, only if it is not taken to too much of an extent. I would not want to get my nose pierced, just because I think I’ll look bad. But that is my personal opinion. I guess that type of thing is a cultural difference.

Tiara from Indiana:

I personally think body piercing is sickening. If there were supposed to be holes in your body, you would have been born with them. I do, however, think that ear piercing, is not wrong.  There is a difference between ear piercing and belly button piercing. Ear piercing is not nearly as dangerous. I would be sick if someone stuck a needle in my belly button.

Lee from Illinois:

Hi! I live in Illinois. I am 23．I have 12 tattoos and three piercing. I love my tattoos and consider myself an art collector. You would be surprised at who has given me the thumbs-up on my art work. People on the street stop me to look at that on my leg. Most of them don’t know what it is. They just think the work itself is great.

Subotai from California:

I’m not prohibitive（禁止）of self-expression, but when I see high school students getting these piercings, I really wonder. In some cases, the drive is deeper and darker than mere fashion. A friend of mine tried piercing her own tongue with a safety pin. It got infected and she had a tongue the size of a cow’s.

Nagib from Washington:

I wanted an earring. My friends had them and it looked like a cool thing. I wanted to get a nose ring, but my mum wouldn’t let me. Now I’m glad I didn’t get it. I just wanted a little stud, but I wouldn’t have looked good with it.

Jackson from Ohio:

I don’t think it’s wrong, but when people do it all over the place like their face and everything —I think that’s ridiculous. People who get the big dragons that cover your whole body—I don’t think that’s necessary. When I see naked chicks on guys, I think. “You have no respect for women.”

Brittany from New York:

You don’t want to do stuff to your body. You don t need to do that because you were made perfect. You don’t need to add piercing. If it will make you feel beautiful and you really feel like you need to do it for yourself, then okay. If it really makes a big difference impacting your self-esteem and how you are towards others, then do it. But otherwise, don’t mess with what you got. Maybe you should try something more substantial（充實(shí)的） to find beauty in yourself.

1．Who is wholeheartedly lost in tattoos and piercing?

       A．Tiara                   B．Erin                    C．Nagib.                 D．Lee.

2．Who doesn’t think tattoos and piercing are beautiful?

       A．Jackson.             B．Brittany.              C．Tiara.                 D．Nagy.

3．We can conclude that ________.

       A．tattoos and piercing are a new kind of elegant art

       B．a(chǎn)ll the teachers in the West are in favor of tattoos and piercing

       C．everything is changeable with time going on

       D．it is necessary to live with all different views of beauty

4．The best title for this passage is probably _________.

       A．Body Art or Damage

       B．Damage to the Youth’s Body

      C．Young People’s Different Curiosities

       D．A Great Anxiety About Young People

查看答案和解析>>

同步練習(xí)冊答案