A survey has found that in adolescence (青春期) a lack of physical activity is connected with emotional and behavioral problems. More than 7,000 teenagers in Finland took part in the survey that judged their levels of physical activity and mental and emotional health. Boys who reported less than one hour of physical activity a week were more likely to be anxious and sad than boys who were more active. Girls who were not active had similar problems, and were more likely than boys who were not active to have sleep problems and break school rules.
The researchers concluded that both boys and girls who are not active are more likely than active ones to have social and attention problems.
“Adolescence is already a difficult stage of life-emotionally, mentally and physically,” study author Marko T.Kantomaa said in the American College of Sports Medicine.
“Mixing that with negative mental and emotional effects brought on by lack of physical activity does not help young people enter adulthood smoothly. Physical activity could be a highly effective and relatively easy way to help that transition and could lead to healthy habits for one’s whole life,” Kantomaa said.
Researchers said that evidence suggests that an increase in physical activity helps reduce problems of sadness and anxiety in both adolescents and adults. “It seems that there is a psychological(心理的)and physiological(生理的)connection that helps explain the beneficial effects of exercise on mental health,”Kantomaa said.
1. The first paragraph leads us to believe that________.
A. a lack of physical activity may cause many mental problems
B. a lack of physical exercise is common among teenagers
C. girls have more physical and mental problems than boys
D. inactive boys are more likely to break rules than inactive girls
2. Which of the following problems may NOT be caused by a lack of activity according to the passage?
A. Anxiety.     B. sleeplessness.    C. Inattention.   D. unkindness.
3. From the passage we can conclude that___________.
A. boys take more physical exercise than girls
B. teenagers who aren’t active spend a lot of time studying
C. plenty of physical activity is effective in developing healthy habits
D. physical exercise is the only way to cure mental problems
4. The underlined word “transition” in the fourth paragraph is closest in meaning to“_______”.
A. change      B. condition       C. balance       D. activity

小題1:A
小題2:D
小題3:C
小題4:A
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:閱讀理解

There is a brown female(母的) Canadian duck that weighs only four hundred fifty grams. The duck had flown to the southern state of Florida for the winter.A hunter shot it on January fifteenth and  took it to his home in the city of Tallahassee.He put it in the refrigerator(冰箱).Two days later the man’s wife opened the refrigerator door.The duck lifted its head and looked at her.It was alive!
The family took the duck to a doctor who treats animals.The doctor gave the duck to the Goose Creek Animal Sanctuary(動(dòng)物保護(hù)區(qū)).Animal sanctuaries provide homes for animals and teach people about their care.
The doctor said it was easy to understand why people thought the duck was dead. He said ducks generally do not move a 1ot,especially after being shot.And he said its low body temperature helped it survive in the refrigerator.
That was enough to make the duck famous around the world.The Tallahassee newspaper published the story that was re-printed in many different countries.But that was not the end of the story.
Workers at the wildlife sanctuary named the duck Perky.And they got the doctor to give an operation to repair the duck’s damaged wing.During the operation,Perky stopped breathing--not just once but two times.The doctor tried to save Perky by giving her oxygen.But he finally said the duck had died.A few seconds later, however, Perky began to move.Reports say the people in the operating room were so happy that they cried.
Workers at the wildlife sanctuary say Perky will not have any more operations. It seems the drugs that were used had side-effects on her.Perky is expected to live at the sanctuary.And a local company has begun to sell T-shirts showing a picture of the lucky duck. Money from the sale of the shirts will help pay for Perky’s care.
小題1:Which of the following statements is TRUE?
A.Animal sanctuaries are homes specially for wounded animals.
B.The hunter shot the duck in the wing.
C.Ducks do not move at all for the whole winter.
D.The hunter’s wife intended to free the duck in the refrigerator.
小題2:The underlined Word “That” in the fourth paragraph refers to the fact that______.
A.the duck survived the shot and the cold in the refrigerator
B.the hunter had saved the duck by freezing it
C.the hunter shot the duck from Canada
D.the Tallahassee newspaper published the story
小題3:The duck in the story______.
A.was big and strong
B.flew to Florida for food
C.stayed in the refrigerator to keep its body temperature low
D.was considered dead before being put in the refrigerator
小題4:What is the best title for the passage?
A.Save the DuckB.The Lucky DuckC.Stop Killing DucksD.The Poor Duck
小題5:It can be inferred from the passage that_______.
A.the local company will get large profits by selling the T-shirts
B.it was illegal for me hunter to shoot the duck
C.the duck is likely to be well cared for in the sanctuary
D.Perky likes Florida better than Canada

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


A breathtaking trick potentially left over from our ancestors might be found in us — the ability to sense oxygen through our skin.
Amphibians, animals such as frogs that can live both on land and in water, have long been known to be capable of breathing through their skin. In fact, the first known lungless frog that breathes only through its skin was discovered recently in the rivers of Borneo.
Now the same oxygen sensors found in frog skins and in the lungs of mammals (哺乳動(dòng)物) have unexpectedly been discovered in the skin of mice.
“No one had ever looked,” explained Randall Johnson, a biologist researcher.
Mice and frogs are quite distant relatives, so the fact they have these molecules (分子) in common in their skin suggests they might well be found in the skin of other mammals, such as humans.
“We have no reason to think that they are not in the skin of people too,” Johnson said.   These molecules not only detect oxygen, but help increase levels of vital red blood cells, which carry oxygen around the body. Normal mice breathing in air that is 10 percent oxygen—a dangerously low level similar to conditions at the top of Mount Everest, and about half that of air at sea level. However, mice that had the oxygen sensor HIF-1a genetically removed from their skin failed to produce this hormone (荷爾蒙) even after hours of such low oxygen.
These findings, if they hold true in humans, suggest one could raise the level of oxygen circulating inside the body. This could help treat lung diseases and disorders such as anemia (貧血癥) without injecting drugs, which make up a multibillion-dollar market, Johnson said.
Athletes also often try to get more oxygen delivered to their muscles in order to improve their performance. They often do this by training at high altitudes or in low-oxygen tents. The new study suggests they might want to expose their skin as well as breathing in low-oxygen air to improve their performance. “It’s hard to say what exactly might be done, however—there’s a lot we don’t know yet,” Johnson explained.
The scientists detailed their findings in the April 18 issue of the journal Cell.
49. Which of the following statements is TRUE according to the passage?
A. Johnson believes that Oxygen sensors also exist in human skin.
B. People have to surf the Internet to read detailed findings.
C. It has been proved that these findings help treat lung diseases.
D. It has long been expected oxygen sensors exist in mice’s skin. 
50. One of the functions of the molecules mentioned above is _______.
A. carrying oxygen around the body                   B. improving athletes’ performance
C. detecting oxygen                                          D. increasing level of oxygen
51. What is Johnson’s attitude to the application of the findings to the athletes’ training?
A. Negative                  B. Doubting                  C. Positive             D. Hesitating
52. The best title of the passage may be _______.
A. Great Findings Benefits Athletes A Lot
B. Frogs And Mice Are Distant Relatives
C. First Known Animal Breathes Through Skin
D. Humans Might Sense Oxygen Through Skin

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


The following conversation is between Susan Russell-Robinson from the US Geological (地質(zhì)學(xué)的)Survey and Barbara Reynolds from USA Today .
Q: Why , after 600 years of no activity , did Mount Pinatubo in Philippines erupt(噴發(fā))in 1991 ?
A: Volcanoes (火山)each have their own eruption styles . This volcano probably has a rule which makes it erupt in the order of every 500 to 1000 years , but a volcano in Hawaii seems to erupt every year , and some of the Alaskan volcanoes might erupt every 10 or 20 years .
Q: So nothing caused it ?
A: There’s nothing out of the ordinary . If you were to take an ordinary calendar year , 50 to 75 or 80 volcanoes erupt around the world every year . There are 20 to 30 volcanoes every month that show signs of unrest . That might be a full-blown eruption or a whole host of activities like that .
Q: What is “the ring of fire” ?
A: If you look at where active volcanoes are placed around the world , there are somewhere between 500 and 600 of them . There is what appears to be almost a necklace that goes around the Pacific Ocean . It makes a ring where 60% of the world’s volcanoes lie .
Q: Why such a concentration(集中)there ?
A: That’s based on a theory that the oceans and the continents are like separate pieces . When they move , one might ride up over the other one . In this case , the Pacific Ocean goes under the continents and when that happens it seems to produce magma (熔巖)at depth and then you have volcanoes in the same ring .
1.What kind of writing do you think this passage is ?
A.A text taken from a geography book .    B.An interview published in the press .
C.A conversation carried out in a film .     D.An oral test recorded as an example .
2.Which of the following statements can correctly explain why we have so many volcanoes around the Pacific Ocean ?
A.The movement of the surface of the earth makes it possible.
B.The Pacific Ocean produces magma and presses it everywhere.
C.The oceans and the continents are separated from each other.
D.The earth’s surface around the Pacific is thinner than any other part.
3.Barbara Reynolds’ main purpose here is______________ .
A.to show how dangerous volcanoes are to the world
B.to learn what signs a volcano gives us before its eruption
C.to warn the world of the existence of “the ring of fire”
D.to introduce some general idea of volcanoes to the public
4.Which of the following can be considered as the best conclusion of the conversation?
A.There are so many volcanoes in the world and we are always in danger.
B.Volcanoes have erupted more frequently than ever before.
C.Volcanoes are waiting to be better known.
D.Something must be done to protect the people near the ring of fire.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


第二部分:閱讀理解(共20 小題。第一節(jié)共15 小題,每題2分;第二節(jié)共5 題,每題2分;共40 分)
閱讀下列短文,從每題所給的四個(gè)選項(xiàng)  A.B.C.D中選出最佳選項(xiàng)。
A
Unnoticed and unappreciated for five decades,a large female turtle (龜)with a stained(彩色的),leathery(粗而硬的) shell is now a precious commodity(物品)in Changsha’s old zoo.She is fed on a special diet of raw meat.Her small pool has been covered with glass which can defend it from bullets.A special camera monitors her movements.A guard is posted at night.
The purpose is simple:the turtle must not die.
Earlier this year,scientists concluded that she was the planet’s last known female Yangtze giant soft shell turtle.She is about 80 years old and weighs almost 90 pounds.
As it happens,the planet also has only one known male.He lives at a zoo the city of Suzhou.He is 100 years old and weighs about 200 pounds.They are the last hope of saving a species believed to be the largest freshwater turtles in the world.
“It’s a very dangerous situation,” said Peter Pritchard, a famous turtle expert in the United States,who has helped try to save the species.、
For many Chinese people,the turtle is the symbol of health and long life,but the last two Yangtze giant soft-shell creatures show the threatened state of wildlife and biodiversity(生物多樣性)in China.Pollution, hunting and over development are destroying natural habitats,and also endangering the plant and the animal population.
China contains some of the world’s richest treasures of biodiversity, yet the latest major survey of plants and animals shows a discouraging picture.Nearly 40 percent of all mammal species in China are now endangered, Scientists say.For plants,the situation is worse;70 percent of all nonflowering plant species and 86 percent of flowering species are considered threatened.
46.Why is the turtle in Changsha specially cared?
A.She has been unnoticed and unappreiated five decades.
B.She can be sold at a high price.
C.She is the planet’s last known female Yangtze giant soft-shell turtle.
D.She is old and heavy.
47.Which of the following statements is TRUE according to the text?
A.The turtle in Changsha is precious because it is the symbol of health and long life.
B.Peter Pritchard believes the female turtle is the largest freshwater turtle in the world.
C.The female turtle is in a dangerous situation where she may be killed.
D.The female turtle in Changsha and the male turtle in Suzhou are the last hope of saving the largest freshwater turtle species in the world.
48.According to the text ________in China.
A.there are the richest species of living things
B.wild plants and animals are becoming fewer
C.turtles are specially protected
D.the situation of plants is better than that of mammal species
49.The last paragraph proves the threatened state of wildlife and biodiversity in China by__________ .
A.facts and numbers                      B.Peter Pritchard’S words
C.teaching theory                        D.telling a story

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


A branch of psychology called neurolinguistic programming has made an interesting and useful discovery :You can change the way you imagine or remember things without changing what you imagine, and it will change your feelings.For example, if a visual memory makes you sad whenever you think about it, you can make that mental picture smaller and dimmer, and when you do, the memory won’t make you as sad.Since you haven’t changed the content of the memory, you haven’t lost any information.You have simply made it less painful.
When you visually remember a pleasant memory, you can made the picture more colorful and the money will give you even more intense good feelings.You can make your pictures of the future brighter, wider , deeper, or you can bring the images closer.Changes like these will make you feel different--- even when you leave the content of the picture the same.
These are general guidelies (指導(dǎo)方針).You’ll need to experiment for yourself to find out what will work for a particular image.For a few people, making an exciting picture brighter makes the feelings less intense.And for some kinds of pictures, increasing the brightness would cause the feelings to become less intense --- for example, a romantic memory.
What is true for visual images also applies to the way you talk to yourself.
For example, if you have trouble motivating yourself , try changing the tone of voice you use when you spread to yourself.Some people order themselves about .The voice they use to talk to themselves is harsh and commanding.Listening to yourself being bossy can have the same effect as listening to someone else being bossy: It can make you want to rebel.Change your tone to friendly or seductive, and you might feel more motivated .When you tell yourself, “I can do it,” fill your internal voice with enthusiasm and back it up with inspiring music.The possibilities are in fact endless.
The important thing to understand is that they way you code your inner world has an impact , and you have quite a bit of control over that coding.You can change it deliberately.When you do , it will change your feelings, which change your actions, which will change the world around you..
1.Which is the best title of the passage?
A.You Can Change the World Around You
B.Be Merry
C.You Can Change People’s Attitude towards You
D.Talk to Yourself in a Friendly Way
2.The underlined word  “deliberately “ can be replaced by ___
A.by change          B.on purpose          C.difficultly          D.wiser
3.We can infer that if we make a sad mental picture bigger and brighter, we can become _____
A.happier      B.sadder             C.calmer            D.wiser.
4.What does the underlined sentence “Some people order themselves around” suggest?
A.Some people order a lot of food.
B.Some people order others to follow their instructions
C.Some people are very hard on themselves
D.Some people are very strict with themselves.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


第二部分閱讀理解(共25小題。第一節(jié)每小題2分,第二節(jié)每小題1分;滿分45分)
第一節(jié)閱讀下列短文,從每題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。
When students think of learning a foreign language, the first thought is of books, exercises, and audio cassettes.Those are important to learning but sometimes a little bit boring.Therefore, it is time for us to spice things up a bit.
Things like a cellphone can keep your interest level high.It’s a perfect study material.You have it with you day after day, you are familiar with how it works and you can use it to practice whenever you have time.You don’t need to have your books by your side or stay in your room to listen to tapes.
Let’s take a look at how to add your cellphone to your study tools.
Set up your cellphone to use the language you want to study.Go to the menu, find settings, locate language and change it to English or Spanish, which benefits your language learning.
Look at the buttons and connect those items with the new vocabulary.This enables you to master simple words and phrases with little effort.For example, each time you open up your cellphone you’ll see “messages”, “games” and “calls made”.These words begin to take root if you see them again and again.
When you have time, take out your cellphone and start hitting buttons.You’ll be surprised at all the vocabulary you can learn by playing with the different menu items.Some things you’ll recognize immediately and others you can guess just by where you find them.
It can keep your learning fresh and interesting.And that’s important because boredom is a big problem with language learners.You need variety and a cellphone is one way to get it.
1.The underlined part “spice things up” in the first paragraph means “______”.
A.make things interesting       B.make things realistic
C.make things helpful          D.make things obvious
2.Which of the following is NOT an advantage of using a cellphone as a study material?
A.We can study with it at any moment.
B.It keeps our learning interest high.
C.We can use it to practice freely.
D.It offers the chance to practice learning.
3.By playing with a cellphone, you can ______.
A.learn the words in the menu
B.remember the messages sent by others
C.improve the techniques of playing games
D.become familiar with different kinds of languages
4.Why did the author write the passage?
A.To stress the importance of language learning.
B.To introduce the latest ways of language learning.
C.To inform how to keep your learning fresh.
D.To explain how to use cellphones to learn language.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


Findings from a new study were presented at a recent meeting of the American Psychosomatic Society. Researchers in the United States studied one hundred thousand women during an eight-year period, beginning in nineteen ninety-four. All of the women were fifty years of age or older. The study was part of the Women’s Health Initiative organized by the National Institutes of Health.
The women were asked questions that measured their beliefs or ideas about the future. The researchers identified each woman’s personality eight years after gathering the information.
The study found that hopeful individuals were fourteen percent less likely than other women to have died from any cause. The hopeful women were also thirty percent less likely to have died from heart disease after the eight years.
Hilary Tindle from the University of Pittsburgh School of Medicine in Pennsylvania was the lead author of the report. She said the study confirmed earlier research that linked optimistic feelings to longer life.
The researchers also gathered information about people’s education, financial earnings, physical activity and use of alcohol or cigarettes. Independent of those things, the findings still showed that optimists had less of a chance of dying during the eight-year period.
Some women who answered the questions were found to be cynically hostile, or highly untrusting of others. These women were sixteen percent more likely to die than the others. They also were twenty-three percent more likely to die of cancer.
The study also found that women who were not optimistic were more likely to smoke and have high blood pressure or diabetes. They were also more likely not to exercise.
Professor Tindle says the study did not confirm whether optimism leads to healthier choices, or if it actually affects a person’s physical health. She also says the study does not prove that negative emotions or distrust lead to bad health effects and shorter life. Yet there does appear to be a link that calls for more research.
1. What’s the purpose of carrying out the study?
A. To gather information for the National Institutes of Health.
B. To find out the relationship between women’s personality and their health.
C. To decide who is more likely to enjoy happier life.
D. To identify each woman’s personality 8 years after gathering the information.
2. What can be inferred from the passage?
A. It’s uncertain whether optimism affects a person’s physical health.
B. Negative emotions do cause shorter life.
C. The connection between personality and health has been established.
D. The more optimistic you are, the longer life you may enjoy.
3. According to the passage, who is more likely to die of cancer?
A. A woman who has high blood pressure or diabetes.
B. A woman who doesn’t exercise.
C. A woman who has poor physical health.
D. A woman who always doubts what others say.
4. Which of the following is true?
A. American Psychosomatic Society organized the new study.
B. Women who were optimistic were less likely to smoke.
C. More questions were given than those measuring women’s beliefs or ideas.
D. Hopeful women were 16% less likely to die from heart disease.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

The unquestioned role of a student is to learn as much as possible through whatever means it takes to acquire knowledge. Teachers and professors are human beings and are therefore not perfect. No one knows the correct answer to every question even when you limit the questions to a certain field of study. Having certain skepticism (質(zhì)疑) about what they are being taught can help students to make the teachers even better by correcting mistakes and misinformation.
Students certainly have a huge role in their own abilities to learn. Teachers should act more as guides along the way rather than try to force each student to learn. The best teachers in the world cannot teach an unmotivated student. If the teacher, for whatever reason, cannot motivate the student, then the student must somehow find a way to motivate himself or herself.
One method of doing this is by becoming an active rather than a passive student. The more the student involves himself or herself in the act of studying, the better he or she can learn. One of the best ways to become more active is simply to ask the teacher or professor questions. Students who passively sit in a classroom and take everything that the teacher says for granted are not fully using their mental capacities(能力) to learn.
Better education comes from teachers who are able to get their students to think about a subject rather than merely absorb a certain amount of information. Having a healthy skepticism can improve a student’s ability to both think and absorb knowledge in a learning situation.
Teachers are human beings and no one is one hundred percent right all of the time, even in a classroom situation. Perhaps a teacher would simply unconsciously say the wrong word or pass on some misinformation that the teacher truly believed was correct. A student’s question could prevent an entire classroom from becoming confused or misinformed.
There is of course a fine balance between a student having a healthy skepticism, and just
being a downright(令人不快的) skeptic. But with the proper attitude toward learning and a little skepticism, both the students and teachers can improve upon the learning process and maximize learning efficiency.
64. Which of the following is the author’s main argument?
A. Passive learning results from passive teaching in class.
B. A student’s ability plays a huge role in the learning process.
C. A healthy skepticism fully depends on students’ motivation and ability.
D. A healthy skepticism and proper attitude contribute to effective learning.
65. Being passive learners, the students ________.
A. use little of their mental ability while studying
B. seldom involve themselves completely in learning
C. can hardly tell the right from the wrong in class
D. simply ask their teachers questions without thinking
66. According to the passage, a good teacher should ________.
A. help the unmotivated students patiently
B. instruct students in the learning process
C. make no mistakes in the teaching process
D. answer all the questions raised by students

查看答案和解析>>

同步練習(xí)冊(cè)答案