精英家教网 > 高中英语 > 题目详情

People who cannot tell all colors apart are said to be color-blind. Most color-blind people can see yellows and blues, but confuse reds with green. It is very rare for a person to be blind to all colors, but they may see everything in shades of black, white and gray.
It is interesting to point out that many color-blind people don’t even realize that they are color-blind, they don’t know that the colors they are seeing and naming are not the actual colors that people with normal vision can see. This can be dangerous when a color-blind person confuses the red and green of a traffic light.
Color blindness is thought to be inherited(遗传)and although doctors have tested color blindness, there is no cure to treatment for it.
【小题1】There are four cards here, and each has two colors. Which card’s colors do you think a color-blind person can tell correctly?

A.Red, Green B.Green, Yellow C.Red, Brown D.Brown, Yellow
【小题2】A color-blind person______.
A.always knows how color-blind he is
B.often gives the wrong name of colors
C.see everything as the same color
D.can hardly see something of strong colors
【小题3】It’s especially dangerous for a color-blind person to cross a street when_____
A.it is crowded
B.it is a dark night
C.there are no traffic lights at the cross of the streets
D.the traffic light turns red
【小题4】A person who is color-blind is believed to have something to do with_____.
A.his old age
B.his poor eyesight
C.his parents or grandparents
D.his living condition
【小题5】Up to now, doctors______.
A.have found a way to prevent a person from getting color-blind
B.have found a way to free a person from his color blindness
C.have been able to tell whether a person is color-blind or not
D.have made it quite clear the cause of color blindness


【小题1】D
【小题2】B
【小题3】D
【小题4】C
【小题5】C

解析试题分析:文章介绍色盲的一些情况,色盲的人对什么样的颜色会色盲,为什么会色盲等等。
【小题1】细节题:从第一段的句子:Most color-blind people can see yellows and blues, but confuse reds with green.可知色盲的人会把红色和绿色混淆,所以ABC都不对,选D
【小题2】细节题:从第二段的句子:they don’t know that the colors they are seeing and naming are not the actual colors that people with normal vision can see.可知色盲的人看见的说的颜色和正常人不一样,就是错的,选 B
【小题3】推理题:从第一段的句子:Most color-blind people can see yellows and blues, but confuse reds with green.可知色盲的人会把红色和绿色混淆,可推断出色盲人过马路的时候会分不清红绿灯,比较危险,选D
【小题4】细节题:从第三段的句子:Color blindness is thought to be inherited(遗传)可知色盲是遗传的,所以是和父母和祖父母有关,选C
【小题5】细节题:从第三段的句子:although doctors have tested color blindness, there is no cure to treatment for it.可知医生能够辨别一个人是否是色盲。选C
考点:考查健康类短文

练习册系列答案
相关习题

科目:高中英语 来源: 题型:阅读理解

“If music is the medicine of the soul(灵魂), let it play on,” said a famous person. I think he said so because probably he got some help from music. Music has some strange abilities. Medical scientists have found that a person that feels stressed can actually listen to some kind of music and become well.
The researchers said that since stress comes as a result of life events such as starting a new family, starting a new business, and starting a new job, one can actually listen to good music and feel good because good music touches the human mind in a positive way. Music helps you to forget the life events that make you worried and remember the important events that once happened in your life.
Depression(抑郁) is a disease cause by stress, smoking, social problems and so on. Depression is also caused by problems such as failure in business. Depression may bring us weakness, headache, and loss of concentration. Good music makes one remember happy moments or good days. If you play music about love, it makes you feel like falling in love again though you may have had several upset experiences. And such good feeling make you healthy.
Anxiety(焦虑) is another health problem that can be controlled by music. Anxiety is a side effect of some major health problems such as cancer of the liver and cancer of the breast. Good music makes you feel relaxed and removes the pains from these diseases and you feel all right.
Good music can send you to sleep. And you need to know that sleep puts your body in a healthy condition. Sleep takes away the effects of stress, depression and anxiety from a person.
【小题1】According to the famous person in Paragraph 1, music can___________.

A.treat many kinds of diseases
B.help you keep healthy in your mind
C.take the place of medicine in treating illness
D.make you remember things happened in the past
【小题2】Good music helps people remove stress mainly by _________.
A.letting people have a good sleep
B.making people think positively
C.showing something new to people
D.making people focus only on important things
【小题3】Which of the following is NOT a reason for depression mentioned in the passage?
A.StressB.SmokingC.Failure in businessD.Loss of concentration
【小题4】According to the passage, one who has cancer will most probably experience __________.
A.stress B.depressionC.anxietyD.upset
【小题5】Which of the following might be the best title for the passage?
A.The health benefits of listening to music
B.Stress can bring us many kinds of diseases
C.Some diseases have something to do with music
D.Tips for us to live a healthy and comfortable life

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

British researchers have found that children’s IQ predicts their probability of becoming vegetarians (素食者) as young adults.
Recent studies suggest that vegetarianism may be associated with lower cholesterol (胆固醇), reduced risk of overweight and heart disease.
“We know from other studies that brighter children tend to behave in a healthier fashion as adults—they’re less likely to smoke, less likely to be overweight,less likely to have high blood pressure and more likely to take exercise.” lead author Catharine Gale said, “This study provides further evidence that people  with a high IQ tend to have a healthier lifestyle.”
In the study, Gale’s team collected data on nearly 8,200 men and women aged 30, whose IQ had been tested when they were 10 years of age.
“Children who scored higher on IQ tests at age 10 were more likely than those who got lower scores to report that they were vegetarian at the age of 30.”Gale said. 
The researchers found that 4.5 percent of participants were vegetarians. Of these, 2.5 percent were vegan, and 33.6 percent said they were vegetarian but also ate fish or chicken.
There was no difference in IQ score between strict vegetarians and those who said they were vegetarian but also ate fish or chicken,the researchers added.
One expert said the findings weren’t the whole answer,however.
“We don’t know the beliefs or attitudes of the parents of the children,nor do we know if there was a particular event that led these children to becoming vegetarian in their teens or adulthood.” said Lona Sandon, and assistant professor at the University of Texas Southwestern Medical Center at Dallas.
【小题1】From the article,we know that ________.

A.brighter children are likely to become vegetarians when they are ten.
B.people with a higher IQ will not be overweight
C.brighter children are likely to have a healthier lifestyle
D.overweight may cause high blood pressure
【小题2】What does the underlined word “vegan” in the sixth paragraph mean?
A.Someone who only eats vegetables.
B.Someone who chooses not to eat meat or fish.
C.Someone who likes eating meat and fish.
D.Someone who likes eating vegetables.
【小题3】This study left some unanswered questions EXCEPT “________”.
A.Did the vegetarian children grow up in a family with a vegetarian parent?
B.Did the children eat a primarily vegetarian diet at the age of 10?
C.Were meatless meals regularly served in the participants’ families?
D.Did the vegetarian children really have a high IQ?
【小题4】The main idea of the passage is that ________.
A.the low IQ children will be unhealthier when they grow up
B.being vegetarians can reduce the risk of overweight and heart disease
C.IQ is important to vegetarians
D.high IQ children are more likely to become vegetarian when they grow up

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

Even a small reduction in salt in the diet can be a big help to the heart. A new study used a computer model to predict how just three grams less a day would affect heart disease in the United States.
The result: 10% fewer heart attacks, 8% fewer strokes, 4% fewer deaths, 11% fewer new cases of heart disease, and 240 billion dollars in health care savings.
Researchers found it could prevent 100,000 heart attacks and 92,000 deaths every year.
The study is in the New England Journal of Medicine. Kirsten Bibbins-Domingo at the University of California, San Francisco was the lead author. She says people would not even notice a difference in taste with three grams, or one half teaspoon, less salt per day. The team also included researchers at Stanford and Columbia University.
Each gram of salt contains four hundred milligrams of sodium(钠), which is how foods may list their salt content.
The government says the average American man ears ten grams of salt a day. The American Heart Association advises no more than three grams for healthy people. It says salt in the American diet has increased fifty percent since the nineteen seventies, while blood pressures have also rise. Less salt can mean a lower blood pressure.
New York City Mayor Michael Bloomberg is leading effort called the National Salt Reduction Initiative. The idea is to put pressure on food companies and restaurants. Critics call it government interference.
Mayor Bloomberg has already succeeded in other areas, like requiring fast food places in the city to list calorie information. Now a study by the Seattle Children’s Research Institute show that the calorie information on the menu can influence what parents order for their children.
【小题1】According to the passage, what disease is not related to salt in diet?

A.Cancer.B.Stroke. C.Blood pressure.D.Heart attack.
【小题2】It can be inferred from the passage that________.
A.all the heart diseases result from eating too much salt
B.the American Heart association suggest less than 3 grams of salt a day for everyone
C.how much salt is contained in certain food is measured by the amount of sodium
D.the less salt one eats, the healthier he will be
【小题3】The National Salt Reduction Initiative aims to________.
A.attract the public attention to the problem
B.require fast food places to list salt information
C.inform people of the harm that salt does to health
D.put pressure on food companies and restaurants
【小题4】The last paragraph mainly tells us________.
A.Bloomberg has made some other efforts to improve people’s health
B.Bloomberg is very successful in his career
C.parents must pay great attention to calorie information
D.a new study is being done about calorie information

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

If you are having trouble falling asleep, you are in good company. About 65% of Americans said they have sleeping problems a few nights each week, according to a recent study by the National Sleep Foundation. Sleeping too little can lead to a higher risk of becoming fat and getting depressed(沮丧的). But before you go to a doctor for advice, it is worth examining your sleeping habits one more time. Some of your favorite evening habits may have something to do with the sleeping problems.
Setting a Bright Alarm Clock
The light of your bright alarm clock can prevent you from falling asleep. You can make your room as dark as possible. Cover the bright numbers with a book or consider buying a small travel clock. Your cellphone alarm may also do the trick.
Counting Sheep
When you just can’t  fall asleep, it’s useless to stay in bed to count sheep. If you’ve been trying to fall asleep for more than 30 minutes, the National Sleep Foundation suggests you get up to do some reading or watch TV for a while. Such activities will make you sleepy. Before you know it, you’ll be going back to bed really tired.
Exercising Late at Night?
Daytime workouts(锻炼) will keep you full of energy for hours. That’s why you don’t want to exercise within three hours of hitting the sack. Fierce(剧烈的)  physical activity raise your body temperature and pumps your energy level—both are bad for a good night’s sleep.
【小题1】What can we learn from the first sentence of the passage?

A.It’s not good to fail to fall asleep at night.
B.People in a good company often have sleeping problems.
C.There are many people who have sleeping problems.
D.You should find someone to talk to if you can’t fall asleep.
【小题2】The underlined part “hitting the sack” in the last paragraph means “______”.
A.going back homeB.going to bed
C.going to the gymD.falling asleep
【小题3】Which of the following is NOT mentioned in the passage?
A.The bad results of getting too little sleep.
B.Why the bright alarm clock keeps you awake.
C.What to do if you can’t fall asleep after 30 minutes.
D.Why watching TV and reading books make people sleepy.

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

WASHINGTON-School lunches have been called many things, but a group of retired military officers is giving them a new label: national security threat.
That's not a reference to the mystery meat served up in the cafeteria line either. The retired officers are saying that school lunches have helped make the nation's young people so fat that fewer of them can meet the military's physical fitness standards, and recruitment will be difficult.
A new report being released Tuesday says more than 9 million young adults, or 27 percent of all Americans ages 17 to 24, are too overweight to join the military. Now, the officers are advocating for passage of a wide­ranging nutrition bill that aims to make the nation's school lunches healthier.
The military group acknowledges that other things keep young adults out of the armed services, such as a criminal record or the lack of a high school diploma. But weight problems that have worsened over the past 15 years are now the leading medical reason that recruits are rejected.
Although all branches of the military now meet or exceed recruitment goals, retired Navy Rear Adm. James Barnett Jr., a member of the officers group, says the obesity trend could affect that.
“When over a quarter of young adults are too fat to fight, we need to take notice,” Barnett said. He noted that national security in the year 2030 is “absolutely dependent” on reversing child obesity rates.
This isn't the first time the military has gotten involved in the debate over school lunches. During World War Ⅱ, military leaders had the opposite problem, reporting that many recruits were rejected because of stunted growth and inadequate nutrition. After the war, military leaders pushed Congress to establish the national school lunch program so children would grow up healthier.
Today, the group is urging Congress to eliminate junk food and high­calorie beverages from schools, put more money into the school lunch program and develop new strategies that help children develop healthier habits.
【小题1】What is the main problem of the lunches in schools according to the military officers?

A.The meat in the lunches is mysterious.
B.The lunches are too expensive.
C.The lunches contain too much fat.
D.There is inadequate nutrition in the lunches.
【小题2】The underlined word “obesity” in Paragraph 5 means ________.
A.slow in mind B.state of being fat
C.quick in movementD.lack of confidence
【小题3】Which of the following statements is NOT true?
A.The lunches in American schools are not very healthy.
B.During World War Ⅱ,many people could not join the army because of overweight.
C.According to the author , overweight was the key reason why many recruits were rejected.
D.By now, Congress hasn't eliminated junk food and high­calorie beverages from schools.
【小题4】Which of the following is the best title for the article?
A.School lunches: a national security threat?
B.National security in danger ?
C.Retired officers tired of school lunches
D.The recruitment of 2030

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

Many animals recognize their food because they see it. So do humans. When you see an apple or a piece of chocolate you know that these are things you can eat. You can also use other senses when you choose your food. You may like it because it smells good or because it tastes good. You may dislike some types of food because they do not look, smell or taste very nice. Different animals use different senses to find and choose their food. A few animals depend on only one of their senses, while most animals use more than one sense.
Although there are many different types of food, some animals spend their lives eating only one type. The giant panda(大熊猫)eats only one particular type of bamboo(竹子). Other animals eat only one type of food even when given the choice. A kind of white butterfly(蝴蝶)will stay on the leaves of a cabbage, even though there are plenty of other vegetables in the garden. However, most animals have a more varied diet(多样化饮食). The bear eats fruits and fish. The fox eats small animals, birds and fruits. The diet of these animals will be different depending on the season.
Humans have a very varied diet. We often eat food because we like it and not because it is good for us. In countries such as France and Britain, people eat foods with too much sugar. This makes them overweight, which is bad for their health. Eating too much red meat and animal products, such as butter, can also be bad for the health. Choosing the right food, therefore, has become an area of study in modem life.
【小题1】We can infer from the text that humans and animals _________.

A.depend on one sense in choosing food
B. are not satisfied with their food
C.choose food in similar ways
D.eat entirely different food
【小题2】Which of the following eats only one type of food?
A.The white butterfly.B.The small bird.
C.The bear.D.The fox.
【小题3】Certain animals change their choice of food when ___________.
A.the season changes
B.the food color changes
C.they move to different places
D.they are attracted by different smells
【小题4】We can learn from the last paragraph that __________.
A.food is chosen for a good reason
B.French and British food is good
C.some people have few choices of food
D.some people care little about healthy diet

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

L1PITOR

ABOUT LIPITOR
Lipitor is a prescription medicine.Along with diet and exercise,it lowers “bad,’
cholesterol(胆固醇)in your blood.It can also raise “good'’ cholesterol·
Lipitor can lower the risk of heart attack in patients with several common risk factors,
including family history of early heart disease,high blood pressure,age and smoking·
 
WHO IS LIPITOR FOR?
Who can take LIPITOR:
.People who cannot lower their cholesterol enough with diet and exercise
·Adults and children over l0
Who should NOT take LIPITOR:
.Women who are pregnant,may be pregnant,or may become pregnant. Lipitor may harm
your unborn baby.
.women who are breast-feeding.Lipitor can pass into your breast milk and may harm
your baby.
·  People with liver(肝脏)problems
 
 POSSIBLE SIDE EFFECTS OF LIPITOR
Serious side effects in a small number of people:
.Muscle(肌肉)problems that can lead to kidney(肾脏)problems,including kidney failure
.Liver problems.Your doctor may do blood tests to check your liver before you start
Lipitor and while you are taking it.
Call your doctor right away if you have:
.Unexplained muscle pain or weakness,especially if you have a fever or feel very tired
.Swelling of the face,lips,tongue,and/or throat that may cause difficulty in breathing or
swallowing
· Stomach pain
Some common side effects of LIPITOR are:
· Muscle pain
· Upset stomach
· Changes in some blood tests
 
 
 HOW TO TAKE LIPITOR
DO:
· Take Lipitor as prescribed by your doctor.
· Try to eat heart-healthy foods while you take Lipitor.
· Take Lipitor at any time of day, with or without food.
· If you miss a dose(一剂),take it as soon as you remember.But if it has been more than
12 hours since your missed dose,wait.Take the next dose at your regular time.
Don’t:
· Do not change or stop your dose before talking to your doctor.
· Do not stal-t new medicines before talking to your doctor.
 
 
【小题1】What is a major function of Lipitor?
A.To help quit smoking. B.To control blood pressure. 
C.To improve unhealthy diet. D.To lower "bad" cholesterol. 
【小题2】Taking Lipitor is helpful for              .
A.breast-feeding women B.women who are pregnant 
C.adults having heart disease D.teenagers with liver problems 
【小题3】If it has been over 12 hours since you missed a dose, you should         .
A.change the amount of your next dose 
B.eat more when taking your next dose 
C.have a dose as soon as you remember 
D.take the next dose at your regular time 
【小题4】Which of the following is a common side effect of taking Lipitor?
A.Face swelling. B.Upset stomach 
C.Kidney failure. D.Muscle weakness. 
【小题5】What is the main purpose of the passage?
A.To teach patients ways for quick recovery. 
B.To present a report on a scientific research. 
C.To show the importance of a good lifestyle. 
D.To give information about a kind of medicine 

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

  People believe that climbing can do good to health. Where can you learn the skill of climbing then? If you think that you have to go to the mountains to learn how to climb, you’re wrong. Many Americans are learning to climb in city gyms(体育馆). Here, people are learning on special climbing
wall. The climbing wall goes straight up and has small holding places for hands and feet.
How do people climb the wall? To climb, you need special shoes and harness(保护带) around your chest to hold you. There are ropes(绳索)tied to your harness. The ropes hold you in place so that you don’t fall. A beginner’s wall is usually about 15 feet high, and you climb straight up. There are small pieces of metal that stick out for you to stand on and hold on to. Sometimes it’s easy to see the new piece of metal. Sometimes, it’s not. The most difficult part is to control your fear. It’s normal for humans to be afraid of falling, so it’s difficult not to feel fear. But when you move away from the wall, and the ropes hold you, and you begin to feel safe. You move slowly until you reach the top.
Climbing attracts people because it’s good exercise for almost everyone. You use your whole body, especially your arms and legs. This sport gives your body a complete workout. When you climb, both your mind and your body can become stronger.
【小题1】The most difficult thing to do in wall climbing is _______.

A.to tie ropes to your shoes B.to control your fear
C.to move away from the wall D.to climb straight up
【小题2】The word “workout” underlined in the last paragraph most probably means _________.
A.settlement B.exercise
C.excitement D.tiredness
【小题3】 Why does the author write this passage?
A.To tell people where to find gyms.
B.To prove the basic need for climbing
C.To encourage people to climb mountains.
D.to introduce the sport of wall climbing

查看答案和解析>>

同步练习册答案