Increasingly, over the past ten years, people--- especially young people –have become aware of the need to change their eating habits, because much of the food they eat, especially processed food(加工過的食品), is not good for the health. As a result, there has been a growing interest in natural foods: foods which do not contain chemical additives(添加劑) and which have not been affected by chemical fertilizers(化肥), widely used in farming today.
Natural foods, for example, are vegetables, fruit and grain which have been grown in soil that is rich in organic matter. In simple words, this means that the soil has been nourished(給…營養(yǎng)) by unused vegetable matter, which provides it with vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fertilizers, the main purpose of which is to increase the amount—but not the quality—of foods grown in commercial farming area.
Natural foods also include animals which have been allowed to feed move freely in healthy pastures(牧場). Compare this with what happens in the mass production of poultry(家禽):there are battery farms, for example, where thousands of chickens live crowded together in one building and are fed on food which is little better than rubbish. Chickens kept in this way are not only tasteless as food; they also produce eggs which lack important vitamins.
There are other sides of healthy eating which are now receiving increasing attention from experts on diet. Take, for example, the question of sugar. This is actually unnecessary food. It is not that sugar is harmful in itself. But it does seem to be addictive: the quantity we use has grown steadily over the last two centuries and in Britain today each person consumes an average of 200 pounds a year! Yet all it does is provide us with energy, in the form of calories. There are no vitamins in it, no minerals, and no fibre.
小題1:People have become more interested in natural foods because______.
A.they want to keep healthy
B.they want to taste all kinds of foods
C.natural foods are more delicious than processed foods
D.they want to return to nature
小題2:Chickens raised in poultry farms are all of the following EXCEPT that _____.
A.they are fed on food which is little better than garbage
B.they live in very crowded condition
C.the eggs they produce lack vitamins
D.they are allowed to move about and eat freely
小題3:According to the passage, ______.
A.people can only find sugar to give them energy
B.sugar is bad for the health
C.the use of sugar is habit forming
D.sugar only sweetens food, but provides us with nothing useful

小題1:A
小題2:D
小題3:C 

小題1:細(xì)節(jié)理解題。由第一段可知“因為他們所吃的大部分食品,特別是加工食品,對健康不利。因此,人們越來越對天然食品感興趣,即不含化學(xué)添加劑的食品和不受如今農(nóng)業(yè)中廣泛使用的化肥影響的食品!
小題2:細(xì)節(jié)理解題。結(jié)合第三段可知:有許多籠式養(yǎng)雞場,那里數(shù)以千計的雞擠在一間雞舍內(nèi),所喂的飼料幾乎無異于垃圾。用這種方法養(yǎng)的雞不僅乏味,而且下的蛋缺乏重要的維生素。沒有提到D項。
小題3:細(xì)節(jié)理解題。結(jié)合最后一段中for example, the question of sugar. This is actually unnecessary food可知答案。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:閱讀理解

Office workers should know that long periods of sitting at your desk may be a killer. Scientists have shown a new threat from this lifestyle that they call  “muscular inactivity (肌肉遲鈍)”.
Sitting still for long periods of time leads to the buildup of substances (物質(zhì)) in the blood that are harmful to health. And exercise alone won’t drive them away.
Millions of people spend their days between car,office desk and the sofa in front of the TV. While the bad influences are well rocognized,it has been thought that they can be changed by regular trips to the gym or swimming pool.
Now researchers say that is not enough. In addition to regular exercise,office workers need to keep moving while they work,by making regular trips to the printer,coffee machine or to chat with workmates.
Elin Ekblom­Bak,an expert on health,says research shows long periods of sitting and lack (缺乏)  of “whole body muscular movement”  are strongly linked to obesity,heart disease and cancer,and a higher risk of death,regardless of (不管) whether they take enough exercise.
“Everyone knows about the health benefits of regular exercise. But what we haven’t realized before is that long­period sitting down carries an extra risk that cannot be dealt with by taking exercise,” Dr Ekblom­Bak said,adding that sitting still should be recognized as a risk to health.
“It is important to have a five­minute break from desk work every 45 minutes. Don’t email workmates—walk across the office to give them the message. Take a coffee break or put the printer in the next room. I am a desk worker and I try to do it. It is not difficult but sometimes you get lost in your work and you forget about it.”
However,more studies are needed to confirm the ill effects of sitting for too long and ways of fighting them. But at present they conclude that  “keep moving”  should be added to the advice to “keep exercising.”
小題1:Nowadays,many office workers wrongly think that________.
A.long periods of sitting has bad influences on them
B.regular exercise benefits them after long periods of sitting
C.they are living a lifestyle called “muscular inactivity”
D.it’s unfair for them to sit in the office for too long
小題2:What does the author suggest office workers should do?
A.Chat with workmates often.
B.Send emails instead of chatting.
C.Keep moving in the office regularly.
D.Take more exercise after work.
小題3:The last paragraph suggests that the result of the study is________.
A.scientific B.uncertainC.unbelievableD.convincing
小題4:What would be the best title for the passage?
A.A new threat :long­period sitting
B.Office workers should keep exercising
C.Taking exercise benefits a lot
D.Keep moving,it could save your life

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Cholesterol                          Dr, Arlene Donar, Medical
Watchers                                     Director SPECIAL PURCHASE
ALERT-JULY 2008
“BEST PRODUCT WE VE EVER SEEN”—THIS REALLY-WORKS—ON SALE NOW
Need to ler your cho1esterol(膽固醇)?  We strongly recommend
CholesterolblockTM, This really works, and how is the best time to buy, because of a special offer for the first 250 customers only for a limited time.   
*Takes cholesterol out of food, no matter what you eat.
*Clinically demonstrated effective in university and hospital testing,.
*Lowers cholesterol absorption up to 42% or more.
*NO SIEDE EFFCTS unlike LiptorR, ZocorR, CrestorR& other commonly prescribed(處方的)medications safe and effective.
*Outsells all other brands on Internet every month.    
LIMITED TIME ONLY---Try Cholesterol Watchers free with purchase. 
小題1:If you happen to be the 200th customer to buy Cholesterolblock, you will      
A.be able to buy it at a low priceB.be the luckiest one online
C.try it free of chargeD.change your diet
小題2:LiptorR, ZocorR,CrestorRare       .
A.diseasesB.side effectsC.medicinesD.cholesterol
小題3:CholesterolblackTM has the following advantages EXCEPT that       
A.it helps take cholesterol out of whatever food you eat
B.it has been proved useful in hospital testing
C.it helps people absorb at least 42% cholesterol
D.it sells best on Internet every month
小題4:Where can you most probably read this passage?
A.In a travel guide book.B.On a university bulletin board.
C.In a health magazine.D.In a doctor's prescription.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Do you know that girls are seven times more likely than boys to be unhappy and twice more likely to commit suicide(自殺)and that girls are three times more likely than boys to have a negative attitude?Twenty percent of the girls in the US between the ages of 12 and 17 drink alcohol(酒)and smoke cigarettes.
So what is mental(心理的)health?Mental health is how we think,feel,and act in order to face life’s problems.
A young girl’s mental health affects her daily life and future. Like physical health,mental health is important at every stage of life. Caring for and protecting a young girl’s mental health is important to ensure that she grows up to become the best she can be.
Many children experience mental health problems that are painful and can be serious. Mental health problems affect at least one in every five young people at any given time. Unluckily,about two thirds of all young people with mental health problems are not getting the help they need. Mental health problems can lead to school failure,alcohol or other drug abuse(濫用),family violence,or even suicide.
There are many signs that may point to a possible mental health problem in a child or teenager. If you are worried about a child or have any questions,look for help at once. Talk to your doctor,a school teacher,or other mental health experts who are trained to know whether your child has a mental health problem. You can also call 1­800­789­2647 for a list of warning signs.
小題1:What is implied in the first paragraph?
A.More and more girls are committing suicide.
B.Boys are usually physically stronger than girls.
C.Girls are more likely to have mental health problems than boys.
D.Children in America are lacking in parental care.
小題2:In the author’s opinion,________.
A.mental health is more important than physical health
B.mental health is important no matter how old you are
C.people with mental health problems will never succeed
D.it’s easier for children to have mental health problems than adults
小題3:According to the passage,which of the following people would most probably call 1­800­789­2647?
A.People who are sure they have mental health problems.
B.Children who have mental health problems and want help.
C.Parents who want to know whether their children are doing well at school.
D.Parents who want to know whether their children have mental health problems.
小題4:The purpose of this passage is to________.
A.tell parents what to do if they find that their children have mental health problems
B.explain why so many children have mental health problems
C.tell people how bad it is to have mental health problems
D.a(chǎn)sk parents to pay more attention to their children’s mental health

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Welcome every morning with a smile. Let your first hour set the theme of success and positive action that is certain to echo through your entire day. Today will never happen again. Don’t waste it with a false start or no start at all. You were not born to fail.
Starting the day right can give good momentum (動力) for the rest of the day. Having a power morning is a key factor for a fruitful day. Here are some tips on getting the most out of the morning.
Wake up early. In theory, there’s no difference in waking up early or late as long as you get the proper amount of sleep. However, there is a psychological advantage when you wake up earlier than the average person and then you’ll have more time to do preparation before engaging in the real world.
Exercise. Good health is always a benefit with exercise, but studies have also shown that morning exercise helps you to sleep better at nights.
Eat breakfast. It’s the most important meal of the day. According to the Mayo Clinic, we should choose three from the following four: fruits and vegetables, grains, dairy, and protein. Did you know that you can actually gain weight when you skip breakfast?
Take a shower. When you shower, do you do it in the morning or at night? I used to shower in the evenings, but I found that morning showers helped me to be more alert.
Prioritize (優(yōu)先) your To-Do list. Leo coined the acronym MIT to mean “most important tasks.” Our to-do list might be never ending, but put on top of the list a couple of urgent tasks that will define the day to be a successful one.
Check your emails. Only once. Getting a lot of emails can be very distractive. You actually are more productive when you check them only a few times at fixed time of the day. I only do them 2-3 times a day—once in the morning, once at lunch, and one more as it gets toward the end of the day.
小題1:The purpose for the author to write this passage is to       .
A.tell you to get up early every day
B.offer you the best way to start the day
C.give you advice about how to arrange a day
D.a(chǎn)dvise you to prioritize your to-do list every morning
小題2:If you don’t have breakfast, you may       .
A.lose weight.B.be productive.
C.put on weight.D.be more alert.
小題3:The underlined word “coined” in Paragraph 6 means       .
A.inventedB.designedC.foundedD.defined
小題4:The author advises you to check your emails only once because       .
A.the emails are not important
B.reading e-mails is distractive
C.you can only read e-mails at fixed time
D.getting so many emails can distract your attention

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Is there anything more important than health? I don't think so. "Health is the greatest wealth(財富)," wise people say. You can't be good at your studies or work well when you are ill.
If you have a headache, toothache, backache, earache or bad pain in the stomach, if you complain of a bad cough, if you run a high temperature and have a bad cold, or if you suffer from high or low blood pressure, I think you should go to the doctor.
The doctor will examine your throat, feel your pulse, test your blood pressure, take your temperature, sound your heart and lungs, test your eyes, check your teeth or have your chest X-rayed. After that he will advise some treatment or some medicine. The only thing you have to do is to follow his advice.
Speaking about doctor's advice, I can't help telling you a funny story.
An old gentleman came to see the doctor. The man was very ill. He told the doctor about his weakness, memory loss and serious problems with his heart and lungs. The doctor examined him and said there was no medicine for his disease.
He told his patient to go to a quiet place for a month and have a good rest. He also advised him to eat a lot of meat, drink two glasses of red wine every day and take long walks. In other words, the doctor advised him to follow the rule-Eat at pleasure, drink with measure and enjoy life as it is. The doctor also said that if the man wanted to be well again, he shouldn't smoke more than one cigarette a day.
A month later the gentleman came into the doctor's office. He looked cheerful and happy. He thanked the doctor and said that he had never felt a healthier man.
"But you know, doctor," he said, "it's not easy to begin smoking at my age."
小題1:The writer thinks that ____.
A.health is more important than wealth
B.work is as important as studies
C.medicine is more important than pleasure
D.nothing is more important than money
小題2:The doctor usually tells his patient what to do _____.
A.without examining the patient
B.a(chǎn)fter he has examined the patient
C.if the patient doesn't take medicine
D.unless the patient feels painful
小題3:The underlined part in the passage means "____".
A.he was feeling better than ever
B.he will be well again
C.he was feeling worse than before
D.he wasn't a healthy man
小題4:From the last sentence of the passage, we learn the man ____ before.
A.was a heavy smoker
B.didn't smoke so much
C.didn't smoke at all
D.began to learn to smoke
小題5:Which of the following is NOT true?
A.The man thanked the doctor.
B.The man didn't follow the doctor's advice.
C.The man told the doctor he couldn't remember things.
D.The doctor usually tests his/her blood pressure when a person is ill.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

A blocked airway(呼吸道) can kill someone in three to four minutes, but it can take more than eight minutes for an ambulance to arrive. So a simple procedure such as opening someone's airway can save their life while they're waiting for emergency medical help. This means you're more likely to give first aid to someone you know than a stranger.
There are many misconceptions(誤解) surrounding first aid. Below are the ‘most popular’ ones with details of what you should do.
You should put butter or cream on a burn. The only thing you should put on a burn is cold water - keep the butter for cooking. Put the affected area under cold running water for at least ten minutes.
The best way to treat bleeding is to put the wound under a tap. If you put a bleeding wound under a tap you wash away the body's clotting agents(凝血劑) and make it bleed more. Instead put pressure on the wound with whatever is available to stop or slow down the flow of blood. As soon as possible call 999. Keep pressure on the wound until help arrives.
Nosebleeds are best treated by putting the head back. If you put the head back during a nosebleed, all the blood goes down the back of the airway. Instead advise them to tilt(傾斜) their head forwards and ask the person to pinch(捏) the end of their nose and breathe through their mouth.
You need lots of training to do first aid. You don’t - what you mostly need is common sense. You can learn enough first aid in a few minutes to save someone's life – whether it’s from a book, attending a course or watching videos online.
Remember: anyone can save a life
小題1:The most important point to save a person’s life is to ensure _____.
A.his smooth breath
B.a(chǎn)mbulances’ arriving time
C.the quiet surroundings
D.emergency medical help
小題2:If a person is burnt, what you should do immediately is to _____.
A.put some cream on the burn area
B.cook some butter for the burn
C.place the burn under cold running water
D.wash the affected area for a long time
小題3:If a bleeding wound is put under a tap, what should happen?
A.It will help the bleeding stop at once.
B.It will help produce more clotting agents.
C.It will produce more pressure on the wound
D.It will bleed more and hard to stop
小題4:Which of the following statement is RIGHT?
A.When a person’s nose bleed, please put the head back.
B.You can learn first aid in quickly in different ways.
C.When a person is burnt, crap the burn until help arrives.
D.Not everyone can do first aid to save a life.
小題5:The passage mainly tells us _____.
A.how to learn first aid by yourself
B.some misunderstanding about first aid
C.the importance of first aid
D.how to help medical team save a life

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Why do men die earlier than women? The latest research makes it known that the reason could be that men’s hearts go into rapid decline(下降) when they reach middle age.
The largest study of the effects of ageing on the heart has found that women’s longevity may be linked to the fact that their hearts do not lose their pumping power with age.
“We have found that the power of the male heart falls by 20-25 percent between 18 and 70 years of age,” said the head of the study, David Goldspink of Liverpool John Moores University in the UK.
“Within the heart there are millions of cells that enable it to beat. Between the age of 20 and 70, one-third of those cells die and are not replaced in men,” said Goldspink. “This is part of the ageing process.”
What surprises scientists is that the female heart sees very little loss of these cells. A healthy 70-year-old woman’s heart could perform almost as well as a 20-year-old one’s. “This gender( 性別) difference might just explain why women live longer than men,” said Goldspink. They studied more than 250 healthy men and women between the ages of 18 and 80, focusing on healthy persons to remove the confusing influence of disease. “The team has yet to find why ageing takes a greater loss on the male heart,” said Goldspink.
The good news is that men can improve the health of their heart with regular exercise. Goldspink stressed that women also need regular exercise to prevent their leg muscles becoming smaller and weaker as they age.
小題1:The underlined word “l(fā)ongevity” in the second paragraph probably refers to “________”.
A.healthB.a(chǎn)geingC.long lifeD.effect
小題2:The text mainly talks about ________.
A.men’s heart cellsB.women’s ageing process
C.the gender differenceD.hearts and long life
小題3:According to the text, the UK scientists have known that ________.
A.women have more cells than men when they are born
B.women can replace the cells that enable the heart to beat
C.the female heart loses few of the cells with age
D.women never lose their pumping power with age
小題4:If you want to live longer, you should ________.
A.exercise regularly to keep your heart healthy
B.find out the reason for ageing
C.enable your heart to beat much faster
D.prevent your cells from being lost
小題5:We can know from the passage that ________.
A.the reason why ageing takes a greater loss on the male heart has been found out
B.scientists are on the way to finding out why the male heart loses more of the cells
C.the team has done something to prevent the male from suffering the greater loss
D.women over 70 could lose more heart cells than those at the age of 20

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Doctors say anger can be an extremely damaging emotion, unless you learn how to deal with it. They warn that anger can lead to heart disease, stomach problems, headaches, emotional    probems and possibly cancer.
Anger is a normal emotion that we all feel from time to time. Some people express anger openly in a calm reasonable way. Other burst with anger, and scream and yell(咆哮).But other people keep their anger inside. They can not or will not express it. This is called repressing anger.
For years many doctors thought that repressing anger was more dangerous to a person's health than expressing it. They said that when a person is angry,the brain releases the same hor-mones(荷爾蒙).They speed the heart rate, raise blood pressure, or sugar into the blood, etc. In general the person feels excited and ready to act.
Some doctors say that both repressing and expressing anger can be dangerous. They believe that those who express anger violently may be more likely to develop heart disease, and they believe that those who keep their anger inside may face a greater danger of high blood pressure.
Doctors say the solution(解決辦法) is learning how to deal with anger. They say the first step is to admit that you are angry and to recognize the real cause of the anger, then decide if the cause is serious enough to get angry about. If it is, they say,“Do not express your anger while angry. Wait until your anger has cooled down and you are able to express yourself calmly and reasonably.”
Doctors say that a good way to deal with anger is to find humor in the situation that has made you angry. They said that laughter is much healthier than anger.
小題1:“Damaging emotion” means that _________.
A.the emotion is harmless
B.the emotion is harmful
C.the feeling is very strong
D.the feeling is hard
小題2: What statement is right?
A.Were you angry, you would be cancered(得癌癥).
B.Once you are angry, you must be cancered.
C.Angry as you are often, you can't be cancered.
D.Anger may cause you a cancer.
小題3: Expressing anger violently _________ repressing it according to some scientists.
A.is just the same as
B.is more harmful than
C.is no better than
D.is much better than
小題4:According to the author, you'd better _________.
A.never be angry
B.cool it down before you express it
C.laugh and laugh when you get angry
D.a(chǎn)dmit you are wrong when you are angry

查看答案和解析>>

同步練習(xí)冊答案