题目内容
5.Here is a surprising and important fact:Mental work(脑力劳动) alone can't make us tired.It sounds absurd(荒谬的).But a year ago,scientists tried to find out how long the human brain could work 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(工人),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.In fact,brain can work as well 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 say that most of our fatigue comes from our mental and emotional(情绪的) attitudes(态度).One of England's most outstanding scientists,J.A.Hartfield,says,"The greater part of the fatigue is of mental origin(源于精神的).In fact,fatigue of physical origin(源于身体的) is rare."Dr.Brill,a famous American scientist,goes even further.He says,"One hundred percent of the fatigue of sitting workers in good health is because of emotional problems."
What kinds of emotions make sitting workers tired?A feeling of being bored,angry,nervous or worried,a feeling of not being appreciated(被欣赏)---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.
42.What surprised the scientists a few years ago?C
A.Fatigue toxins could hardly be found in a laborer's blood.
B.Albert Einstein didn't feel tired 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.
43.According to the writer,which of the following can make sitting workers tired?B
A.Challenging mental work.
B.Unpleasant emotions.
C.Endless tasks.
D.Physical labor(体力劳动).
44.What's the writer's attitude towards the scientists'ideas?A
A.He agrees with them.
B.He doubts them.
C.He argues against them.
D.He is not willing to accept them.
45.We can infer from the passage that in order to stay energetic,sitting workers need toB.
A.have some good food
B.enjoy their work
C.exercise regularly(规律地)
D.discover fatigue toxins.
分析 这是一个令人惊讶和重要的事实:单独的脑力劳动不能使我们劳累.它听起来有些荒谬.但在一年前,科学家试图找出人类的大脑可以工作多久而不疲劳.让这些这些科学家惊讶的是,他们发现血液流经大脑,当它活跃时,没有显示出任何疲劳!如果我们从一个工人身上提取一滴血液,我们会发现它充满疲劳的毒素和疲劳的产物.但是,如果我们从阿尔伯特爱因斯坦的脑中采集血液,它即使在一天结束时也没出显示疲劳的毒素.
事实上,大脑可以在八个或甚至十二小时的努力工作结束时像开始一样好.大脑是完全不知疲倦.那么是什么让我们累呢?
一些科学家说,我们大部分的疲劳来自我们的精神和情绪态度.英格兰最杰出的科学家之一J.A.Hartfield说,"疲劳的更大部分是心理起源.事实上,身体的疲劳是罕见的."美国著名的科学家布莱尔博士甚至更进一步.他说:"百分之百的坐着的健康良好的工人的疲劳是因为情绪问题.
什么样的情绪使坐着的工人厌倦了?无聊,愤怒,紧张或担心的感觉,一种不被欣赏的感觉---这些是坐着的工人的情绪.工作本身很少引起疲劳.我们的疲劳,因为我们的情绪在身体中产生紧张.
解答 42.C.细节分析题.根据To the amazement of these scientists,they discovered that blood passing through the brain,when it is active,shows no fatigue at all可知,让科学家惊奇的是当血液流经大脑,在它活跃时,没有显示出任何疲劳,也就是在大脑工作很长时间后并不会疲劳.故选C.
43.B.判断推理题.根据A feeling of being bored,angry,nervous or worried,a feeling of not being appreciated(被欣赏)---those are the emotions that tire sitting workers可知,本句中所列举的导致工人疲劳的都是一些不愉快的情绪.故选B.
44.A.判断推理题.通过阅读全文以及We get tired because our emotions produce nervousness in the body等句的表述可知,作者同意科学家们的观点.故选A.
45.B.判断推理题.根据最后一段可知,引起坐着的工人疲劳的原因是不愉快的情绪引起的,所以要想不疲劳,就应该避免这种情绪的发生,也就是喜欢上他们的工作,享受他们的工作.故选B.
点评 做此类阅读理解题先快速读一遍文章了解其大意,接下来结合具体题目从文中的相应位置找到相关的句子或关键词,联系上下文,根据句意作答,有的推理题需要仔细推敲.无论什么样的题型,最关键的还是从文章出发,不能脱离原文.
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On March 18,Xie received the L-Oreal?UNESCO Women in Science Award for her achievements in chemistry.It is (67)generally known as the female (女性的)"Nobel Prize"in science.
Xie is a professor at the University of Science and Technology of China.She has discovered new nano materials(纳米材料) that can efficiently turn heat (68)into electricity.
But unlike many other scientists,chemistry wasn't one of Xie's favorite (69)subjects when she was young,Anhui Daily (70)reported.
Born in Anhui province,Xie was (71)crazy about physics in high school.She always moved to the front row in the classroom to get a (72)better listening.
(73)But she didn't do well in physics in the college entrance examination (高考) and was admitted as a chemistry major at Xiamen University.
She told Anhui Daily that she didn't feel upset."I did what I had to do and I think it's better to let nature take its course (顺其自然),"she said.She kept (74)working hard,but this time in chemistry.She went to the lab early and left late.She went through many failures,but (75)her positive attitude has carried her far in the chemistry world.
One (18)A,the boy's father asked for some saplings (树苗) from the neighbor.He told the (19)Cto plant a sapling each person in front of the house.The father said,"Whose sapling grows best,I will buy him or her a favorite(20)D."When the boy saw his brothers and sisters watering the trees,however,he had a strange idea:he hoped that the tree he planted would(21)Asoon.So,after watering it once or twice,he would never (22)Cit.
A few days later,when the little boy went to see his tree again,he was (23)C to find that it didn't fade (枯萎) but grew some fresh leaves.Compared with the trees of his brothers and sisters,his tree was even greener.His father kept his (24)A,bought the little boy his favorite gift and said that from the tree his son planted,he was (25)Dthat his son would become an excellent botanist when he grew up.
Since then,the little boy slowly became optimistic (乐观的).One night,he lay on the bed but couldn't fall asleep.Then he (26)B and came to the yard.To his surprise,his (27)D was splashing something onto his tree.(28)A,he understood:his father had been (29)B fertilizing (施肥) his small tree!He returned to his room,tears running down his cheeks.Later,the little boy didn't become a botanist,but he became President of the United States.His name was Franklin Roosevelt.
(30)Ais the best nourishment (营养) of life.Even if it is just a drop of clear water,it can still help the tree of life thrive.
| 16.A.often | B.seldom | C.sometimes | D.always |
| 17.A.down | B.up | C.straight | D.high |
| 18.A.spring | B.summer | C.autumn | D.winter |
| 19.A.neighbors | B.friends | C.children | D.boys |
| 20.A.book | B.house | C.toy | D.gift |
| 21.A.die | B.grow | C.break | D.survive |
| 22.A.look at | B.look for | C.look after | D.look into |
| 23.A.happy | B.exited | C.surprised | D.sad |
| 24.A.promise | B.secret | C.mind | D.head |
| 25.A.satisfied | B.happy | C.surprised | D.sure |
| 26.A.stood up | B.got up | C.put up | D.came up |
| 27.A.brother | B.sister | C.neighbor | D.father |
| 28.A.Suddenly | B.Luckily | C.Sadly | D.mainly |
| 29.A.slowly | B.secretly | C.quietly | D.happily |
| 30.A.Love | B.Gift | C.Toy | D.Luck. |