Nuclear power’s danger to health, safety, and even life itself can be summed up

Nuclear power’s danger to health, safety, and even life itself can be summed up

题型:不详难度:来源:
Nuclear power’s danger to health, safety, and even life itself can be summed up in one word: radiation.
Nuclear radiation has a certain mystery about it, partly because it cannot be detected by human senses. It can’t be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we can’t detect them, sense them, without a radio receiver. Similarly, we can’t sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.
At very high levels, radiation can kill an animal or human being immediately by killing masses of cells in vital organs. But even the lowest levels can do serious damage. There is no levels of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be serious. This is the case when only a few cells are hit, and if they are killed immediately. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They can grow into cancer. Sometimes this does not show up for many years.
This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the victim being aware at the time that damage has occurred. A person can be irradiated(辐射)and feel fine, then die for cancer five, ten, or twenty years later as a result. Or a child can be born weak as a result of radiation absorbed by its grandparents.     
Radiation can hurt us. We must know the truth.         
小题1:Which of the following statements is true?                   
A.Nuclear radiation is just like common radio waves.
B.Nuclear radiation can cause cancer to human beings.
C.Nuclear radiation can be detected by human senses.
D.Nuclear radiation can be safe to human beings if its level is low.
小题2:How can nuclear radiation kill an animal?                    
A.By damaging its heart.B.By killing a few cells.
C.By hitting any place in its body.D.By killing many cells in important organs.
小题3: If a human being is hit by nuclear radiation, he may _______.
A.die of cancer after many yearsB.die immediately
C.have a child who may be born weak D.all of the above

答案

小题1:B
小题2:D
小题3:D   
解析

试题分析:文章介绍核辐射对人类和动物的危害,如果辐射较弱,可能会危害健康,有的影响不是明显的,但是人们可能多年后会死于癌症,或会对后代产生影响,如果核辐射量大,对导致死亡。
小题1:细节题:从第三段的句子:But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They can grow into cancer. Sometimes this does not show up for many years.可知核辐射会导致人类的癌症,选B。
小题2:细节题:从第三段的句子:At very high levels, radiation can kill an animal or human being immediately by killing masses of cells in vital organs. 可知核辐射可以***死重要器官的细胞从而使动物立刻死亡,选D
小题3:细节题:从第一段可知核辐射可以致人死亡,最后一段可知核辐射可以让人多年后死于癌症,也会生出虚弱的孩子,所以选D   
举一反三
Good health is the most valuable thing a person can have but one cannot take good health for granted .It is important to remember that the body needs proper care in order to be healthy. There are three things that a person can do to help stay in good shape, eat right food, get enough sleep, and exercise regularly.
Proper nutrition  is  important for good  health.  Your body cannot work well unless  it receives the proper kind“fuel".Don"t eat too much food with lots of sugar and fat, Eat plenty of foods high in protein, like meat fish eggs and nuts. Vegetables and fruits are very important because they provide necessary vitamins and minerals.  However  don"t overeat It is not helpful to be overweight
Getting the proper amount of sleep is also important.  If you don"t get enough sleep, you feel tired and easily get angry. You have no energy. Over a long period of time a little amount of sleep may even result In a change of personality(人的个性).Be sure to allow yourself from seven to nine hours of sleep each ,If you do, your body will feel strong and refreshed ,and  your mind will be sharp.
Finally, get plenty of exercise Exercise firms the body, strengthens the muscles, and prevents you from gaining  weight  It also improves your heart and lungs. If you follow a regular exercise program, you will probably increase your life-span(寿命).An kind of exercise is good. Most sports excellent for keeping the body in good shapes: basketball, swimming, bicycling, running and so on. Sports are not only good for your body, but they are enjoyable and interesting, too.
If everybody were to eat the right foods, get plenty of sleep and exercise regularly, the world would be a happier and healthier place. We would all live to be much older and wiser.
小题1:In order to keep good health______.
A.we should eat a lot of sweets
B.one needs a large amount of fat
C.we must try to sleep now and then
D.people should eat according to the foods nutrition
小题2:Eating more and sleeping less_______.
A. can keep healthyB. is no good for you
C. gets you more energyD. will keep your personality
小题3:The writer explains ________in the 4th paragraph.
A. how to eatB. what to eat
C. how to keep healthyD. the importance of doing exercise
小题4:The title for the article should be“_______".
A. Eating and ExercisingB. How Vitamins Work in Man"s Body
C. Staying HealthyD. Sleeping Well

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“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

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LEEDS, England—A Leeds University psychology professor is researching a course to help dozens of Britons forgive their enemies.
“The hate we hold within us is a cancer.” Professor Ken Hart said, adding that holding in anger can lead to problems such as high blood pressure and heart disease.
More than 70 people have become volunteers in Hart’s first 20-week workshop in London—a course he says is the first of its kind in the world.
These are people who are sick and tired of living with a memory. They realize their bitterness is a poison they think they can pour out, but they end up drinking it themselves, said Canadian-born Hart.
The students meet in each group of eight to ten for a two-hour workshop with a director every two weeks.
The course, ending in July, is expected to get rid of the cancer of hate in these people. “People have lots of negative attitudes towards forgiveness,” he said, “People confuse forgiveness with forgetting. Forgiveness means changing from a negative attitude to a positive one.”
Hart and his team have created instructions to provide the training needed.
“The main idea is to give you guidances on how to look at all kinds of angers and how they affect you, and how to change your attitudes towards the person you are angry with,” said Norman Claringbull, a senior expert on the forgiveness project.
Hart said, “I believe forgiveness is a skill that can be taught, as these people want to get free of the past.”
小题1:From this passage we know that ________.
A.without hate, people will have less trouble connected with blood pressure and heart disease
B.people who suffer from blood pressure and heart disease must have many enemies
C.high blood pressure can only be cured by psychology professors
D.high blood pressure and heart disease are caused by hate
小题2:If you are angry with somebody, you should ________.
A.attend Hart’s course
B.persuade him or her to have a positive talk with you
C.never meet him or her any longer
D.treat him or her positively instead of negatively
小题3:In Hart’s first 20-week workshop, people there can ________.
A.meet their enemies
B.change their attitudes
C.enjoy the professor’s teaching
D.learn how to quarrel with others
小题4:If you are a volunteer in Hart’s workshop, you’ll ________.
A.meet in eight or ten groups
B.get rid of the illness of cancer
C.attend a gathering twice a month
D.pour out everything stored in your mind
小题5:The author wrote this passage in order to________.
A.persuade Britons to go to Hart’s workshop
B.tell us the news about Hart’s research
C.tell us how to run a workshop like Hart’s
D.help us to look at all kinds of angers

题型:不详难度:| 查看答案
Our lifestyles today are very busy. We have family, school, sports, entertainment and social activities to fit into a time that seems never enough. We need to be healthy to meet the demands of daily life. But what does it mean to have a healthy lifestyle?
To have a healthy lifestyle, we need to:
◆ eat different kinds of healthy food most of the time
◆ do exercise often
◆ have time to relax
◆ get enough sleep to give our bodies time to grow healthy and strong
Read about a normal day in the lives of two children.

Abbey gets up at 7:00 am, feeds the dog, and has cereal and a glass of juice for breakfast.  She walks to school with her friend, Julia. She has a bag of chips for a morning snack, drinks water, and has a chicken and lettuce sandwich with a banana for lunch. She likes to play soccer with her friends at lunch and morning break time. She walks home with Julia, has some crackers with cheese and juice for afternoon snack and plays with the dog for a while. She plays computer games for an hour or two before dinner, then has a shower and does her homework. She watches her favorite television show for an hour, then usually goes to bed at about 9:30 pm.
Carl gets up at 8:30 am and has two pieces of bread with jam and a glass of milk for breakfast. His mother drives him to school on her way to work. He eats cookies with juice for morning snack and a pot pie ordered from the school lunch room with juice for lunch. He likes to play card games with his friends at lunchtime and climb the fixed equipment at morning break time. He catches the bus home, has a cereal bar and a can of soda for afternoon snack, then watches some television. He has a shower before dinner, then plays the computer for an hour or two. He goes to bed at about 10:30 pm.
No matter which kind of lifestyle you agree on, just remember it’s important to balance all aspects of life.
小题1:About a healthy lifestyle, the writer doesn’t talk about __________.
A.dietB.exerciseC.relaxationD.medicine
小题2:What can we learn from the article?
A.Abbey plays soccer with her friends at school.
B.Abbey does her homework first after school.
C.Carl goes to school by bus every day.
D.Carl has juice for breakfast.
小题3:Where is the article probably from?
A.A health magazine.
B.A clothing website.
C.A sports guidebook.
D.A travel advertisement.

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Everyone has got two personalities—the one that is shown to the world and the other that is secret and real. You don"t show your secret personality when you"re awake because you can control your behavior, but when you"re asleep, your sleeping position shows the real you. In a normal night, of course, people frequently change their position. The important position is the one that you go to sleep in.
If you go to sleep on your back, you"re a very open person. You normally trust people and you are easily influenced by fashion or new ideas. You don"t like to upset people, so you never express your real feelings. You"re quite shy and you aren"t very confident.
If you sleep on your stomach, you are a rather secretive(不坦率的)person. You worry a lot and you"re always easily upset. You"re very stubborn(顽固的), but you aren"t very ambitious. You usually live for today not for tomorrow. This means that you enjoy having a good time.
If you sleep curled up(卷曲), you are probably a very nervous person. You have a low opinion of yourself and so you"re often defensive. You"re shy and you don"t normally like meeting people.You prefer to be on your own. You"re easily hurt.
If you sleep on your side, you have usually got a well-balanced personality. You know your strengths and weaknesses. You"re usually careful. You have a confident personality. You sometimes feel anxious, but you don"t often get depressed. You always say what you think even if it annoys people.
小题1: According to the writer,you naturally show your secret and real personality _________.
A.only in a normal night
B.only when you go to sleep
C.only when you refuse to show yourself to the world
D.only when you change sleeping position
小题2: Which is NOT mentioned in the second paragraph about a person"s personality?
A.He or she is always open with others.
B.He or she always likes new ideas earlier than others.
C.He or she is always easily upset.
D.He or she tends to believe in others.
小题3: Maybe you don"t want to make friends with a person who sleeps curled up. Why?
A.He or she would rather be alone than communicate with you.
B.He or she is rarely ready to help you.
C.He or she prefers staying at home to going out.
D.He or she wouldn"t like to get help from you.
小题4:It appears that the writer tends to think highly of the person who sleeps on one side because __________.
A.he or she always shows sympathy for people
B.he or she is confident,but not stubborn
C.he or she has more strengths than weaknesses
D.he or she often considers annoying people

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