精英家教网 > 高中英语 > 题目详情
The whole body is covered with skin.The surface of the skin is dead(like the hair and the nails),but it is made from a living layer(层)just under the surface.The outside dead layers wear off(磨损)all the time,with new ones replacing them,and the body forms a totally new skin every three weeks.
The skin protects the body from the outside world and it passes information from the outside.It helps to keep water in the body and to keep the body at the same temperature.Becteria(细菌)can’t get in through the skin unless it is damaged.
If the weather is cold,the blood vessels(血管)in the skin squeeze down,or contract(收缩),so that as little blood as possible comes near the surface.This means that less warmth is lost to the outside.This makes the skin look pale,or even “blue”.At the same time,the hairs on the skin are pulled upright by tiny muscles.
When it is hot,the blood vessels expand(扩大),or get wider again,to allow plenty of blood to run near the surface of the skin.This helps the body to lose heat,and the skin may look red.At the same time,the sweat glands(汗腺)produce more sweat,which cools the skin.
If your skin has ever been numb(麻木的),you will realize how important the feeling from the skin is.Nerves(神经)in the skin are sensitive(敏感的)to heat and cold,sharpness,hardness and softness,wetness and dryness and pain.If one is not able to feel these things,which can act as warnings,he is likely to be burned,cut or hurt in other ways.
The colour of the skin depends on special colour cells(细胞).These are just below the top layers of the skin.They are needed as protection from some harmful ray of the sun.The stronger the sun is,the more important it is to have a dark skin.People with pale skins may “tan”(晒黑)in the sun.This happens when the body produces extra colour cells in the skin for protection.In the sun,the skin produces a vitamin(vitamin D)which is needed for strong bones.
小题1:Which of the following statements is NOT true?
A.Our hair and nails are dead like the surface of the skin.
B.There is skin all over our body.
C.The skin of our bodies will be completely different in three weeks.
D.The surface of the skin is made of a living layer.
小题2:The second paragraph mainly tells us about______.
A.the functions of the skin
B.the information from the outside
C.the water in the body
D.the temperature of the body
小题3:Bacteria will get in through the skin______.
A.when one’s skin is numb
B.when one is ill
C.when the skin is cut
D.when the sweat glands produce more sweat
小题4:When the weather is cold,the skin will contract in order to______.
A.allow more blood nearB.make the skin look blue
C.keep warmthD.help the body lose heat
小题5:The colour of the skin is determined by______.
A.the rays of the strong sunB.colour cells
C.top layers of the skin D.vitamin D

小题1:D
小题2:A
小题3:C
小题4:C
小题5:B
练习册系列答案
相关习题

科目:高中英语 来源:不详 题型:完形填空

阅读下面短文,掌握其大意,然后从各题所给的四个选项(A、B、C、D)中,选出最佳选项,并在答题卡上将该项涂黑。
We recently treated our new-adult son and his girlfriend to a seafood feast, near Cocoa Beach, Florida. Our server, a grandmotherly woman skilled in the art of___36_____, flew around the ___37_____juggling dishes and drinks while treating customers as individuals. She remembered their ____38_____tastes likes and dislikes –all of which she’d learned after only the briefest ____39_____.
At the end of the meal, she presented the bill, and then went to____40_____ the growing crowd of other dinners. My husband ___41____with a credit card, added her___42____, and we were off.  
“Mr. Goldsmith!” our waitress ran out of the dining room waving a receipt at him, “Thank you.”
He looked at her as though he didn’t __43_____. We’ve all seen that universal___44___ of confusion—eyebrows drawn together and head cocked to one side
“What did you give her?” I asked in a stage whisper, ____45___if he had done something __46___ or made a calculation error.
“Wow, Dad,” our son said, ___47___like an awestruck 10 –year-old. “I’ve never seen a waitress ____48____anyone out of the restaurant to say ‘thank you’ for the tip.
“She gave us great service. I just thought she deserved a little bump __49_____ what I usually give.”
It wasn’t until later, when I accidentally heard our ___50____retelling the story of the ___51___waitress, that I realized she had given my family something___52___ a “thank you”. She showed our son the importance of ___53_____hard work and the rewarding sound of “thank you”. Her show of thanks helped a dad earn a bit more ___54___from a loving son. And it reminded me just why I ___55____this thoughtful, caring man.
小题1:
A.
painting
B.
smiling
C.
cooking
D.
serving
小题2:
A.
restaurant
B.
sky
C.
corner
D.
table
小题3:
A.
common
B.
special
C.
considerable
D.
delicious
小题4:
A.
argument
B.
discussion
C.
conversations
D.
debate
小题5:
A.
attend to
B.
look for
C.
care for
D.
find out
小题6:
A.
paid
B.
called
C.
carried
D.
pushed
小题7:
A.
advice
B.
suggestions
C.
tip
D.
prize
小题8:
A.
doubt
B.
suspect
C.
happen
D.
understand
小题9:
A.
feeling
B.
look
C.
attitude
D.
expression
小题10:
A.
thinking
B.
hoping
C.
wondering
D.
expecting
小题11:
A.
unreasonable
B.
appropriate
C.
unfair
D.
helpful
小题12:
A.
looking
B.
sounding
C.
doing
D.
imagining
小题13:
A.
help
B.
keep
C.
drive
D.
follow
小题14:
A.
except
B.
below
C.
above
D.
within
小题15:
A.
son
B.
friend
C.
colleague
D.
parent
小题16:
A.
excellent
B.
skilled
C.
generous
D.
grateful
小题17:
A.
rather than
B.
more than
C.
less than
D.
no more than
小题18:
A.
devoting
B.
remembering
C.
acknowledging
D.
ignoring
小题19:
A.
respect
B.
sympathy
C.
thanks
D.
satisfactory
小题20:
A.
trained
B.
refused
C.
left
D.
married

查看答案和解析>>

科目:高中英语 来源:不详 题型:完形填空

阅读下面短文,掌握其大意,然后从36-55各题所给的四个选项(A、B、C和D)中,选出最佳选项.
"Everything happens for the best." My mother said whenever I faced disappointment, "If you 36   one day something good will happen. And you'll realize that it wouldn't have happened if not for that previous   37 ."
Mother was right. After graduating from college I had decided to try for a job in   38  , then work my way up to   39  . I got   40  on the door of every station every time.
In one studio, a kind lady told me that big stations wouldn't   41  hiring an inexperienced person. "Go out in the sticks(边远地区) and find a   42  station that'll give you a chance." she said.
I thumbed(搭便车) home to Dixon, Illi.   43  there were no radio-announcing jobs in Dixon, my father said Montgomery Ward had opened a store and wanted a local   44  to manage   45  sports department. Since Dixon was where I had played high-school football, I  46  the post, but I wasn't hired.
My disappointment must have shown. "Everything happens for the best." Mom   47  me. I drove to Davenport, in Iowa. I   48  WOC Radio there. Peter Macarthur, the program director, told me they had already hired an announcer.
As I left his office, my frustration(挫折感)   49  over. I asked aloud. "How can a fellow get to be a sports announcer if he can't get a job in a radio station ?" I was waiting for the   50   when I heard Macarthur calling. "What was that you said about sports? Do you know anything about   51  ?" Then he stood me before a microphone and asked me to broadcast a(an)   52   game.
I remembered a game we had won. I did a 15-minute buildup to that play, and Peter told me I would   53  Saturday's game!
On my way home, I thought of my mother's words,   54  I have many times since, "If you … , one day something good will happen...."
I often wonder what my   55  might have been like if I'd gotten the job at Montgomery Ward.
小题1:
A.work hardB.are braveC.carry onD.are lucky
小题2:
A.problemsB.difficultyC.disappointmentD.unemployment
小题3:
A.sportsB.radioC.shopsD.clubs
小题4:
A.sports announcerB.sports starC.shop managerD.film maker
小题5:
A.turned awayB.turned downC.turned inD.turned off
小题6:
A.like B.decideC.standD.risk
小题7:
A.biggerB.smallC.localD.private
小题8:
A.IfB.WhileC.UnlessD.Until
小题9:
A.businessmanB.college studentC.athleteD.announcer
小题10:
A.his B.herC.theirD.its
小题11:
A.applied forB.acceptedC.consideredD.refused
小题12:
A.blamedB.suggestedC.remindedD.persuade
小题13:
A.listened toB.foundC.triedD.expected
小题14:
A.becameB.turnedC.wentD.boiled
小题15:
A.lift B.directorC.resultD.reply
小题16:
A.radioB.directingC.footballD.broadcasting
小题17:
A.live B.imaginaryC.excitingD.lively
小题18:
A.join inB.missC.broadcastD.organize
小题19:
A.asB.thenC.whenD.though
小题20:
A.dreamB.aimC.lifeD.failure

查看答案和解析>>

科目:高中英语 来源:不详 题型:完形填空


三、完形填空(共15小题;每小题1分,满分15分)
阅读下面短文,掌握其大意,然后从34-48各题所给的四个选项A、B、C和D中,选出最佳选项,并标在试卷的相应位置。
If we really want to be happy, why do we complain all the time in our daily life? We can be active in our life by setting goals and going   34   what we want. But if we’re always expressing complaints, we can not really live   35  .
If you don’t believe me,   36   how many times you complain about something or other in one day. Whether it is being stuck in traffic, being bothered by the weather, or whatever it is, there are endless   37   where you can find a reason to complain. But it’s not just outside circumstances   38   we complain about. We also complain about   39  . We complain constantly that we don’t have enough time, that we don’t have enough money and that we’re not   40   enough, cool enough, or just enough.
Most of us have experienced plenty of unpleasantness   41   complaining about things we can’t control, so do I. And I   42   really thought about it much until I found the website about “living in a complaint-free world”, which   43   my attitude towards life.
Imagine how   44   you would be if you simply stopped being a complainer.   45   of what you complain of is outside of your control anyway.   46  , it is no use thinking about something you have no power to change. When you   47   that you’re complaining, stop and ask yourself if you would rather complain, or be happy.
In our daily life, we have many choices. As Dale Carnegie puts it, any fool can criticize and complain but it takes character and   48   for the wise persons to live a complaint-free and happy life.
34.   A. without                B. against              C. after             D. over
35.   A. effectively                B. normally           C. casually             D. honestly
36.   A. scan                         B. evaluate            C. witness              D. count
37.   A. effects                            B. cases                 C. consequences     D. anecdotes
38.   A. that                         B. which               C. where               D. what
39.   A. yourselves                B. themselves         C. oneself              D. ourselves
40.   A. clumsy                     B. attractive           C. neat                  D. awesome
41.   A. due to                      B. in addition to     C. by means of       D. in spite of
42.   A. ever                         B. even                 C. never                D. once
43.   A. reflected                  B. strengthened      C. abandoned         D. changed
44.   A. awkward                  B. confident           C. awful                D. cheerful
45.   A. Few                         B. Little                C. Much                D. Many
46.   A. Therefore                 B. However           C. Otherwise          D. Anyway
47.   A. guarantee                 B. determine      C. realize               D. recommend
48.   A. dignity                     B. self-control        C. judgement         D. affection

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

One dark and stormy night, an elderly man and his wife entered the hall of a small hotel in Philadelphia, hoping to get shelter for the night.
The clerk, a friendly man with a beautiful smile, explained that there were three conferences in town. “All of our rooms are taken,” the clerk said, “but I can't send a nice couple like you into the rain at one o’clock in the morning. Would you perhaps be willing to sleep in my room? It’s not a suite, but it will be good enough to make you comfortable for the night.” The couple agreed.
As the elderly man paid the bill the next morning, he told the clerk, “You are the kind of person who should be the boss of the best hotel in the United States. Maybe someday I’Il build one for you.” The clerk looked at them and smiled. The three of them had a good laugh.
Two years passed. The clerk had almost forgotten the incident when he received a letter from the elderly man, asking the clerk to pay him a visit. The elderly man met him in New York, and led him to the corner of the Fifth Avenue and 34th Street. He then pointed to a great new building there, a reddish stone one with watchtowers thrusting up to the sky, and told the clerk that it was the hotel he had just built for him to manage.
That wonderful building was the original Waldorf-Astoria Hotel. And this young clerk whose names was George C. Boldt never foresaw the return of events that would lead him into the manager of one of the world's most attractive hotels.
56 .When the elderly couple left the hotel, they ________.          .
A .took what they said as a joke
B .wanted to build the same hotel in the future
C .hoped that the clerk would replace the boss of the hotel
D. thought the clerk was talented in managing hotels
57. Why did the elderly man build a hotel for the clerk?
A .He was grateful to the clerk.         B.They had a bet at first.
C.He wanted to please the clerk.        D. He wanted to sell the hotel.
58. According to the text, the clerk         
A. helped the couple because he thought they were poor
B. hoped that the old couple could give him a large amount of money
C. didn't expect to receive things in return from the old couple.
D. became rich, thanks to his own efforts
59. From the text, we can infer that        .
A. anybody can be a successful manager          B. old people are always very rich
C. good luck is always waiting for lucky people    D. kindness can bring a good return
60.What do you think of the clerk?
A. He was willing to help.                      B. He was very attractive.
C. He tried to make money for his hotel.         D. He liked making friends.

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解


第三部分:阅读理解(共20小题,每题2分,满分40分)
阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳答案,并在答题卡上将该项涂黑。
Today most Chinese teenagers are happy to be favored by two parents and four grandparents
in their families. But have you ever thought about how to take care of four to twelve old people
when you grow up and get married? This could be a problem for most Chinese youths as China is
entering a new stage of an aging society.
An aging society refers to one where 10 percent or more of its population is over 60. By the end of 2007, Chinese over 60 years old have made up 11.7 percent of the nation’s total population.
“China is getting old before becoming rich,” said Cai Chuang, a professor at the Chinese Academy of Social Sciences. The population increase that has powered Chinese growth for three decades will give way over the next ten years to a rapid aging of the society. This will lead to weaker economic growth, because of a lack of labor resources.
As a result of the family planning policy, it is expected that the country’s total working population will decrease after 2015.
China is not the only country getting old. More that 60 countries have become aging societies and one in three people in the European Union is a senior citizen.
However, experts said that China doesn’t have a highly developed social security network to support the old. Social security is an insurance program protecting those in need, including the old, the disabled and others.
56.An aging society is a society that        .
A.less that 10% of its population is over 60
B.10% or more of its population is over 60
C.there are four old people in a family
D.most of its population is over 60
57.If China enters an aging society,      .
A.there will not be enough labor resources
B.the family planning policy will be ended
C.everyone needs to take care of four to twelve old people
D.China will have a highly developed social security network
58.What does Cai Chuang mean by saying “China is getting old before becoming rich.”?
A.China will be an aging society, then be a developed country.
B.China will be a rich country before being an aging society.
C.An aging society will affect Chinese economy development.
D.China will stop developing because of its aging problem.
59.The passage mainly talks about         .
A.an aging society             B.Chinese social problem
C.family panning policy     D.aging problem in China

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解


第三部分 阅读理解(共20小题;每小题2分,满分40分)
Will it matter if you don't have your breakfast ? A short time ago , a test was given in the United States. People of different ages, from 12 to 83, were asked to have a test . During the test , these people were given all kinds of breakfasts , and sometimes they got no breakfast at all. Scientists wanted to see how well their bodies worked when they had different kinds of breakfasts.
The rules show that if a person eats a right breakfast , he or she will work better than if he or she has no breakfast. If a student has fruit , eggs, bread and milk before going to school ,he or she will learn more quickly and listen more carefully in class.
The result is opposite to what some people think . Having no breakfast will not help them lose weight . This is because they are so hungry at noon that eat too much for lunch . They will gain weight instead of losing it . You will lose weight if you reduce your other meals.
56. During the test , the people were given _________.
A. no breakfast at all          B. different breakfast or sometimes none
C. very rich breakfast         D. little food for breakfast
57. Scientists wanted to know whether __________.
A. breakfast had any effect on work and studies.   B. people were interested in breakfast
C. breakfast did harm to people 's health   D. people would work better without breakfast
58. According to the passage , some people think without breakfast they will ____
A. lose weight      B. get a good result in their work
C. gain weight      D. not be hungry at all.
59. Which of the following sciences is not right?
A. It is bad for your health to have no breakfast.
B. No breakfast and more lunch may make you fatter.
C. The more breakfast you have, the more quickly you will learn in class.
D. If you don't eat much for lunch and supper , you may lose weight.

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解


Women’s roles have changed throughout the world in recent years, but nowhere so obviously as in America .As the roles of women have changed ,so have men’s .In many American homes today ,the husband still carries on his traditional role of breadwinner ,while his homemaker wife is in charge of the home and child—raising. But it is more and more common to find that the children are left in day –care centers or nursery schools while both parents work .The woman may earn as much or more money than her husband. At home ,household duties are shared in varying degrees by all family members .It is not unusual to find father cooking dinner ,cleaning the living room or changing the baby .Mother might be outside mowing the lawn or washing the car .Children have responsibilities ,too .One of the goals of the Women’s Liberation Movement has been to have both men and women share in childcare, housework and financial responsibility. Today many American women will not marry a man who is not willing to share equally in household responsibilities.
The high cost of living has made it necessary for many women to have jobs outside the home ,but women often choose to have jobs in order to use their skills and education or to seek a more fulfilling and interesting life .Many American women enjoy the independence that an outside job and the salary give men and even some women—sometimes are not for women working outside the home ,and in some cases ,a woman might be paid less than a man who performs the same job .American women ,however ,have met challenges(挑战)since pioneer days ,and they continue to work for true equality.
45.Many American women go out to work in order to            .
A.earn enough money to support the family
B.make their husbands share in the housework
C.enjoy independence
D.get more money than their husbands
46.What does sex discrimination mean, EXCEPT            ?
A.It’s harder for women to get a same job as men
B.Women get less paid than men at the same position
C.Women do most of the housework
D.Women have jobs outside house
47.         for the women to win true equality.
A.It’s impossible         B.It takes a long time
C.It’s greatly successful      D.It’s not difficult
48.From the text we known          .
A.women’s roles in the world have changed a lot but men’s roles haven’t changed
B.American women continued to work for their true equality
C.in all areas of American men and women got paid equally
D.most women began to work outside the home

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解


B
Below is a table which shows the melting(液化)and boiling points of common substances.Study the table.Then do Numbers 4—7.
Substance
Melting point(C)
Boiling Point(C)
Water
Alcohol
Nitrogen
Oxygen
0
–117
–210
-218
100
78
–196
–183
4.The underlined word‘substances'means‘a type of'_________.
A.matter        B.liquid            C.solid         D.gas
5.Which of the four should be a liquid at-90 degrees?
A.water         B.alcohol           C.nitrogen      D.oxygen
6.Mixing alcohol and water is often used to wash windscreens of cars during the wintertime because _________.
A.it is easier for alcohol to change into gas
B.alcohol is not easily separated from water
C.alcohol freezes at lower temperature than water
D.the mixture is not expensive
7.In order to change water from a solid to a liquid energy must be _________.
A.removed       B.added             C.created       D.destroyed

查看答案和解析>>

同步练习册答案