题干

Here is an astonishing and significant fact: Mental work alone can’t make us tire. It sounds absurd. But a years ago, scientists tried to find out how long the human brain could labor without reaching a stage of fatigue (疲劳). To the amazement of these scientists, they discovered that blood passing through the brain, when it is active, shows no fatigue at all! If we took a drop of blood from a day laborer, we would find it full of fatigue toxins(毒素) and fatigue products. But if we took blood from the brain of an Albert Einstein, it would show no fatigue toxins at the end of the day.
So far as the brain is concerned, it can work as well and swiftly at the end of eight or even twelve hours of effort as at the beginning. The brain is totally tireless. So what makes us tired?
Some scientists declare that most of our fatigue comes from our mental and emotional(情绪的) attitudes. One of England’s most outstanding scientists, J.A. Hadfield, says, “The greater part of the fatigue from which we suffer is of mental origin. In fact, fatigue of purely physical origin is rare.” Dr. Brill, a famous American scientist, goes even further. He declares, “One hundred percent of the fatigue of sitting worker in good health is due to emotional problems.”
What kinds of emotions make sitting workers tired? Joy? Satisfaction? No! A feeling of being bored, anger, anxiety, tenseness, worry, a feeling of not being appreciated---those are the emotions that tire sitting workers. Hard work by itself seldom causes fatigue. We get tired because our emotions produce nervousness in the body.
【小题1】What surprised the scientists a few years ago?
A.Fatigue toxins could hardly be found in a laborer’s blood.
B.Albert Einstein didn’t feel worn after a day’s work.
C.The brain could work for many hours without fatigue.
D.A mental worker’s blood was filled with fatigue toxins.
【小题2】According to the author, which of the following can make sitting workers tired?
A.Challenging mental work.B.Unpleasant emotions.
C.Endless tasks.D.Physical labor.
【小题3】What’s the author’s attitude towards the scientists’ idea?
A.He agrees with them.B.He doubts them.
C.He argues against them.D.He hesitates to accept them.
【小题4】We can infer from the passage that in order to stay energetic, sitting workers need to ___________.
A.have some good food.B.enjoy their work
C.exercise regularlyD.discover fatigue toxins
上一题 下一题 0.99难度 阅读理解 更新时间:2014-10-23 12:08:37

答案(点此获取答案解析)

同类题1

   What Theresa Loe is doing proves that a large farm isn’t a prerequisite for a modern grow-your-own lifestyle. On a mere 1/10 of an acre in Los Angeles, Loe and her family grow, can (装罐) and preserve much of the food they consume.
Loe is a master food preserver, gardener and canning expert. She also operates a website, where she shares her tips and recipes, with the goal of demonstrating that everyone has the ability to control what’s on their plate.
Loe initially went to school to become an engineer, but she quickly learned that her enthusiasm was mainly about growing and preparing her own food. “ got into cooking my own food and started growing my own herbs(香草)and foods for that fresh flavor,” she said. Engineer by day, Loe learned cooking at night school. She ultimately purchased a small piece of land with her husband and began growing their own foods.
“I teach people how to live farm-fresh without a farm,” Loe said. Through her website Loe emphasizes that ‘‘anybody can do this anywhere.” Got an apartment with a balcony (阳台)? Plant some herbs. A window? Perfect spot for growing. Start with herbs, she recommends, because “they’re very forgiving.” Just a little of the herbs “can take your regular cooking to a whole new level,” she added. “I think it’s a great place to start.” Then? Try growing something from a seed, she said, like a tomato or some tea.
Canning is a natural extension of the planting she does. With every planted food, Loe noted, there’s a moment when it’s bursting with its absolute peak flavor. “I try and keep it in a time capsule in a canning jar,” Loe said. “Canning for me is about knowing what’s in your food, knowing where it comes from.”
In addition to being more in touch with the food she’s eating, another joy comes from passing this knowledge and this desire for good food to her children: “Influencing them and telling them your opinion on not only being careful what we eat but understanding the bigger picture,” she said, “that if we don’t take care of the earth, no one will.”
【小题1】The underlined word “prerequisite” (Para. 1) is closest in meaning to“ ”.
A.recipeB.substitute
C.requirementD.challenge
【小题2】Why does Loe suggest starting with herbs?
A.They are used daily.B.They are easy to grow.
C.They can grow very tall.D.They can be eaten uncooked.
【小题3】According to Loe, what is the benefit of canning her planted foods?
A.It can preserve their best flavor.B.It can promote her online sales.
C.It can better her cooking skills.D.It can improve their nutrition.
【小题4】What is the “the bigger picture” (Para. 6) that Loe wishes her children to understand?
A.The knowledge about good food.B.The way to live a grow-our-own life.
C.The joy of getting in touch with foods.D.The responsibility to protect our earth

同类题2

   When it's five o'clock,people leave their office.The length of the workday,for many workers,is defined by time. They leave when the clock tells them they're done.

These days,the time is everywhere: not just on clocks or watches,but on cell-phones and computers.That may be a bad thing,particularly at work.New research shows on that clock-based work schedules hinder morale and creativity.
Clock-timers organize their day by blocks of minutes and hours.For example: a meeting from 9 a.m. to 10 a.m., research from 10 a.m.to noon,etc.On the other hand,task-timers have a list of things they want to accomplish.They work down the list,each task starts when the previous task is completed.It is said that all of us employ a mix of both these types of planning.

What,then,are the effects of thinking about time in these different ways? Does one make us more productive? Better at the tasks at hand? Happier? In experiments conducted by Tamar Avnet and Anne-Laure Sellier,they had participints organize different activities-from project planning,holiday shopping,to yoga-by time or to-do list to measure how they performed under "clock time" vs "task time".They found clock timers to be more efficient but less happy because they felt little control over their lives.Task timers are happier and more creative,but less productive. They tend to enjoy the moment when something good is happening,and seize opportunities that come up.

The researchers argue that task-based organizing tends to be undervalued and under-supported in the business culture.Smart companies,they believe,will try to bake more task-based planning into their strategies.

This might be a small change to the way we view work and the office,but the researchers argue that it challenges a widespread characteristic of the economy: work organized by clock time.While most people will still probably need,and be,to some extent,clock-timers,task-based timing should be used when performing a job that requires more creativity.It'll make those tasks easier,and the task-doers will be happier.
【小题1】What does the author think of time displayed everywhere?
A.It makes everybody aware of time.
B.It is a convenience for work and life.
C.It may have a negative effect on creative work.
D.It clearly indicates the fast pace of modern life.
【小题2】What did Tamar Avnet and Anne-Laure Sellier find in their experiments about clock-timers ?
A.They seize opportunities as they come up.
B.They always get their work done in time.
C.They have more control over their lives.
D.They tend to be more productive.
【小题3】What do the researchers say about today's business culture?
A.It does not support the strategies adopted by smart companies.
B.It does not attach enough importance to task-based practice.
C.It places more emphasis on work efficiency than on workers’ lives.
D.It aims to bring employees' potential and creativity into full play.
【小题4】What do the researchers suggest?
A.Task-based timing is preferred for doing creative work.
B.It is important to keep a balance between work and life.
C.Performing creative jobs tends to make workers happier.
D.A scientific standard should be adopted in job evaluation.

同类题3

   People are interested in eating raw foods or whole foods partly because eating these types of food reduces the risk of acid accumulation(酸堆积)in our body.

Raw and whole foods are usually digested more efficiently than cooked and processed foods. When we cook foods, we destroy the natural enzymes(酶)that are part of the food in its raw form. These enzymes were intended by nature to help us digest the food. When we consume food without these natural enzymes, our bodies either digest the food improperly or allow too many nutrients to be absorbed into the bloodstream. In both cases, the result is obesity. When too many nutrients are absorbed at once, the body grows fat.

Processed foods contain chemical elements, which might confuse the appetite system that tells us when we’ve had enough to eat; as a result, people often overeat. Processed foods also upset the digestive cycle. The body will either identify these foods as allergens and then store them safely away from the organs as fat, or the remains of undigested food will become acidic and enter the bloodstream as acid waste, which will stick to the blood vessel walls(血管壁)and block the passage of vital oxygen and nutrients heading for the body’s cells. The body’s metabolism(新陈代谢)becomes inactive, and the result is weight gain and obesity.

To stop this vicious circle in its tracks, people need to consume food and supplements that will balance the acid already accumulated in body. Eating the right types of raw and whole foods can help. It’s also important to restore our enzyme balance. We need to identify and avoid the foods that cause acid accumulation and consume the foods that increase enzyme production. If we truly want to change and help our body heal itself, we need to take an active approach.

【小题1】We can learn from the 2nd paragraph that __________.
A.it is essential for us to digest some fat
B.cooked and processed foods are healthier
C.foods with natural enzymes help us keep fit
D.absorbing many nutrients is beneficial to our health
【小题2】Processed foods will probably __________.
A.stop body’s metabolismB.be difficult to digest
C.destroy body’s cellsD.lead to obesity
【小题3】The underlined word “ vicious ” in the last paragraph probably means __________.
A.harmfulB.violent
C.progressiveD.positive
【小题4】To change and help our body heal itself, we need to __________.
A.consume enough acid foods
B.identify enzyme production
C.avoid restoring our enzyme balance
D.eat the right types of raw and whole foods

同类题4

It was a beautiful morning, though every morning was beautiful. And I think that morning was ______. As usual I ______ myself for office, locked my room and stepped outside from my hostel(宿舍). Suddenly, I saw two poor kids ______ under a tree, shivering(颤抖) and ______ people as they were passing by.
I could see the light in their eyes, smile on their faces, as they were ______ watching people. I went to them and asked ______ they were sitting over there and where their house was. They ______ in their childish voice that their ______ was nearby, and that they were sitting there because sometimes people gave them ______ or gave them money.
It was ______, but I could feel their ______ of getting something was still alive.
I told them to stay there and I ______ to hostel’s canteen, packed some food and gave them to those children. Their faces were covered completely with ______ and they started eating ______. I also gave them few packets of biscuits and told them to go home, ______ them with their family. They ______ me with smile and said goodbye to me. I was feeling extremely happy that I could at ______ give them some food that of course wouldn’t fill their stomach or ______ their needs, but could give them a little strength. I ______ want to give the two little hearts some ______ on a cold morning.
【小题1】
A.specialB.snowyC.coldD.usual
【小题2】
A.orderedB.advisedC.preparedD.arranged
【小题3】
A.playingB.sittingC.readingD.crying
【小题4】
A.looing atB.laughing atC.galring atD.staring at
【小题5】
A.fortunatelyB.silentlyC.patientlyD.calmly
【小题6】
A.howB.whetherC.whenD.why
【小题7】
A.repliedB.apologizedC.agreedD.promised
【小题8】
A.schoolB.homeC.parentsD.kindergarten
【小题9】
A.booksB.fruitC.foodD.toys
【小题10】
A.terribleB.sadC.hopelessD.freezing
【小题11】
A.needB.chanceC.honorD.hope
【小题12】
A.pointedB.decidedC.escapedD.returned
【小题13】
A.joyB.surpriseC.sadnessD.worry
【小题14】
A.finallyB.timelyC.hurriedlyD.gradually
【小题15】
A.discussingB.sharingC.keepingD.collecting
【小题16】
A.respondedB.praisedC.answeredD.thanked
【小题17】
A.lastB.firstC.leastD.most
【小题18】
A.improveB.discoverC.satisfyD.keep
【小题19】
A.reallyB.totallyC.completelyD.partly
【小题20】
A.supportB.praiseC.warmthD.information

同类题5

   Before I studied psychology, I used to think that people would laugh when funny things occurred. While I was right about that, I discovered there are lots of other psychological factors that make people laugh other than the funny part of a joke. When someone laughs at a joke, there will usually be more than one reason that makes him laugh—and the more reasons there are, the more powerful the joke will be.

I was attending a stand­up comedy show in Egypt, and when the man started to make fun of pedestrians crossing streets, everyone laughed their heads off. The main reason why those people strongly laughed was that almost all of them felt angry towards pedestrians who crossed streets carelessly. The joke wasn't only funny, but it also made the audience feel that they were right about being angry at those pedestrians. That is, people were laughing both because of the funny joke and because of the happiness experienced as a result of the psychological support they got.
The better a joke makes a person feel, and the more it includes other psychological factors, the more the person will like it. For example, if you envy one of your friends, and someone tells a joke that is funny and, at the same time, makes your friend seem stupid, then you will probably laugh at it louder than if you weren't jealous of him.
In short, we don't laugh only when we hear something funny; we also laugh when we experience some kind of happiness that results from the other psychological factors involved in the joke. I strongly discourage you from making fun of anyone or belittling someone to make someone else laugh. All I want to explain is that if your joke supports a person's emotions, he will certainly like it a lot.
【小题1】What did the author find out after studying psychology?
A.Only good jokes make people laugh.
B.Many factors lead to people's laughing.
C.Funny things can make people laugh.
D.Laughter can make people healthy.
【小题2】Why did the audience laugh loud at the pedestrians?
A.They played a trick on the pedestrians.
B.The pedestrians behaved in a funny way.
C.They could feel the pedestrians' happiness.
D.Their emotion was approved of by the show.
【小题3】What does the underlined word “belittling” probably mean?
A.Annoy.B.Blame.
C.Look down on.D.Make up to.
【小题4】Which of the following best shows the structure of the passage?
A.B.
C.D.