高中英语阅读理解专项练习题-科普知识型阅读理解.doc

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1、Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date高中英语阅读理解专项练习题-科普知识型阅读理解高中英语阅读理解专项练习题-科普知识型阅读理解1.2013四川卷 阅读理解 Fear may be felt in the heart as well as in the head, according to a study that has found a link between the cycles of a bea

2、ting heart and the chance of someone feeling fear.Tests on healthy volunteers found that they were more likely to feel a sense of fear at the moment when their hearts are contracting(收缩) and pumping blood around their bodies, compared with the point when the heartbeat is relaxed. Scientists say the

3、results suggest that the heart is able to influence how the brain responds to a fearful event, depending on which point it is at in its regular cycle of contraction and relaxation. Sarah Garfinkel at the Brighton and Sussex Medical School said: Our study shows for the first time that the way in whic

4、h we deal with fear is different depending on when we see fearful pictures in relation to our heart. The study tested 20 healthy volunteers on their reactions to fear as they were shown pictures of fearful faces. Dr Garfinkel said, The study showed that fearful faces are better noticed when the hear

5、t is pumping than when it is relaxed. Thus our hearts can also affect what we see and what we dont see - and guide whether we see fear. To further understand this relationship, the scientists also used a brain scanner(扫描仪) to show how the brain influences the way the heart changes a persons feeling

6、of fear.We have found an important mechanism by which the heart and brain speakto each other to change our feelings and reduce fear, Dr Garfinkel said. We hope that by increasing our understanding about how fear is dealt with and ways that it could be reduced, we may be able to develop more successf

7、ul treatments for anxiety disorders, and also for those for those who may be suffering from serious stress disorder.1. What is the finding of the study?A. Ones heart affects how he feels fear. B. fear is a result of ones relaxed heartbeat.C. fear has something to do with ones health. D. Ones fast he

8、artbeats are likely to cause fear.2. The study was carried out by analyzing _.A. volunteers heartbeats when they saw terrible picturesB. the time volunteers saw fearful pictures and their health conditionsC. volunteers reactions to horrible pictures and data form their brain scansD. different pictur

9、es shown to volunteers and their heart-brain communication3. Which of the following is closest in meaning to mechanism in Paragraph 6?A. Order. B. System. C. Machine. D. Treatment.4.This study may contribute to _.A. treating anxiety and stress betterB. explaining the cycle of fear and anxietyC. find

10、ing the sky to the heart-brain communicationD. understanding different fears in our hearts and heads答案:1.A2.C3.B4.A2.2013安徽合肥质检It is a tall tale that terrifies most young children. Swallow a piece of chewing gum and it will remain in your body for seven years before it is digested. Or so they say. A

11、n even worse tale is that swallowed gum can wrap itself around your heart. But what does happen if you should accidentally eat a stick of gum? Chewing gum is made out of gum base, sweeteners, coloring and flavoring. The gum base is pretty indigestibleit is a mixture of different ingredients（成分）that

12、our body cant use. Most of the time, your stomach really cannot break down the gum the way it would break down other foods. However, your digestive system has another way to deal with things you swallow. After all, we eat lots of things that we are unable to fully digest. They keep moving along unti

13、l they make it all the way through the gut（肠子）and come out at the other end one to two days later. The saliva（唾液）in our mouths will make an attempt at digesting chewing gum as soon as we put it in our mouths. It might get through the shell but many of gums base ingredients are indigestible. Its then

14、 down to our stomach muscleswhich contract and relax, much like the way an earthworm movesto slowly force the things that we swallow through our systems. Swallowing a huge piece of gum or swallowing many small pieces of gum in a short time can cause a blockage within the digestive system, most often

15、 in children, who have a thinner digestive tube than adultsbut this is extremely rare. 1.Children might feel terrified after swallowing chewing gum mainly because_.A. they believe the tall tales about chewing gum B. chewing gum will stay in their body for many yearsC. their heart will be wrapped by

16、chewing gumD. chewing gum is indigestible for children2. What happens to the food that cant be fully broken down? .A. It remains in our digestive system foreverB. It will be eventually moved out of our bodyC. It will fight against the power of the gutD. It will stick to the gut for one or two days 3

17、. The word It (in the 4th paragraph) refers to “_ ”.A. the attempt B. the salvia C. the shell D. the gum base4. What would be the best title for text? A. How does our digestive system work?B. Can chewing gum be swallowed by kids?C. Does swallowing chewing gum matter?D. Why swallowing chewing gum fri

18、ghtens kids? 参考答案: 1.A 2.B 3.B4. C3.2013 江西南昌模拟“Plants were expected to get larger with increased carbon dioxide in the atmosphere，but changes in temperature，humidity and nutrient availability seem to have trumped the benefits of increased carbon dioxide，” said researchers from the National Universi

19、ty of Singapore. 45 percent of the species studied now reach smaller adult sizes than they did in the past.The researchers point out that warmer temperatures and changing habitats，caused by climate change，are possible reasons for the shrinking of creatures. “We do not yet know the exact mechanisms i

20、nvolved，or why some organisms are getting smaller while others are unaffected，” the researchers said.“Until we understand more，we could be risking negative consequences that we cant yet quantify.” The change was big in cold-blooded animals.Only two decades of warmer temperatures were enough to make

21、reptiles (爬行动物) smaller.An increase of only 1 caused nearly a 10 percent increase in metabolism (新陈代谢)Greater use of energy resulted in tiny tortoises and little lizards.Fish are smaller now too.Though overfishing has played a part in reducing numbers，experiments show that warmer temperatures also s

22、top fish growth.There is a recent report on warmer temperatures negative effects on plankton (浮游生物)，the base of the marine ecosystem. Warmblooded animals werent immune from the size change caused by climate change.Many birds are now smaller；Mammals have been miniaturized too.Soay sheep are thinner.R

23、ed deer are weaker.And polar bears are smaller，compared with historical records.This isnt the first time this has happened in Earths history. 55 million years ago，a warming event similar to the current climate change caused bees，spiders and ants to shrink by 50 to 75 percent over several thousand ye

24、ars.That event happened over a longer time than the current climate change. The speed of modern climate change could mean organisms may not respond or adapt quickly enough，especially those with long generation times.So，it is likely that more negative influences of climate change will be shown in the

25、 future. 1Which of the following would be the best title for the passage? AWhy do some species become smaller? BHow does climate change in Earths history? CClimate change has many negative effects DSpecies become smaller as climate warms 2The underlined word “trumped” in the first paragraph can be r

26、eplaced by “_” Aincreased Bbeaten Cstrengthened Dequaled 3Researchers from the National University of Singapore believe that_. Ahow climate change affects animals sizes has not been found clearly Ball the animals on the Earth have become smaller Ctoo many studies on animals sizes have been done Dcli

27、mate change has more negative effects on warm-blooded animals 4What can we learn from the passage? AClimate change has even affected plankton negatively. BBirds have suffered more from climate change than fish. CCold-blooded animals become smaller because of the lack of food. DThe warming event has

28、never happened in Earths history before. 参考答案: 1.D 2.B 3.A 4. A 5.A4.2013郑州预测二 If the eyes are the romantics window into the soul, then the teeth are an anthropologists ( 人类学家 ) door to the stomach. In a study published last month in the journal Science, Peter Ungar of the University of Arkansas and

29、 his partner, Matt Sponheimer of the University of Colorado, US, examined the teeth of our early human ancestors to find out what they were really eating. They already knew that different foods cause different marks on teeth. Some cause scratches, while others cause pits (坑).The carbon left on teeth

30、 by different foods is also different. Tropical grasses, for example, leave one kind of carbon, but trees leave another kind because they photosynthesized ( 光合作用 ) differently. Traditionally, scientists had looked at the size and shape of teeth and skulls ( 头骨 ) to figure out what early humans ate.

31、Big flat teeth were taken to be signs that they ate nuts and seeds, while hard and sharp teeth seemed good for cutting meat and leaves. But this was proven wrong.The best example was the Paranthropus (傍人), one of our close cousins, some of which lived in eastern Africa. Scientists used to believe Pa

32、ranthropus ate nuts and seeds because they had big crests(突起)on their skulls, suggesting they had large chewing muscles and big teeth. If this had been true, their teeth should have been covered with pits like the surface of the moon. They would also have had a particular type of carbon on their tee

33、th that typically comes from tree products, such as nuts and seeds. However, when the two scientists studied the Paranthroupus, it turned out to have none of these characteristics. The teeth had a different kind of carbon, and were covered with scratches, not pits. This suggests they probably ate gr

34、ass, not nuts and fruit stones. It was the exact opposite of what people had expected to find. Carbon “foodprints” give us a completely new and different insight into what different species ate and the different environments they lived in. If a certain species had the kind of carbon on its teeth tha

35、t came from grasses, it probably lived in a tropical grassland, for example.1.The underlined sentence in Paragraph 1 probably means that anthropologists can _.A.know the structure of human stomachs by studying their teethB.find out the diet of early humans by studying their teethC. learn whether hum

36、ans were healthy by looking at their teethD.get the most useful information about humans from their teeth2.According to Paragraphs 3-5，which of the following statements is true?A.Pits on teeth are caused by eating grass or leaves.B.Scratches on teeth are caused by eating nuts or seeds.3.The example

37、of the Paranthropus was mentioned in order to tell us _.A.they were one of our close cousins living in eastern AfricaB.living environment makes a difference to skull structureC.they had different eating habits from other humansD. the size and shape of teeth dont show accurately what early humans ate

38、4.Which of the following structures shows the best organization of the article?(CP： Central Point Para: Paragraph P： Point Sp: Sub-point次要点 C: Conclusion)参考答案: 1.B 2.C 3.D 4. A5-2014预测Global Positioning Systems are now a part of everyday driving in many countries. These satellite-based systems provi

39、de turn-by-turn directions to help people get to where they want to go. But they can also cause a lot of problems, sending you to the wrong place or leave you completely lost. Many times, the driver is to blame. Sometimes a GPS error is responsible. Most often, says Barry Brown, it is a combination

40、of the two.Barry Brown is with the Mobile Life Centre in Stockholm, Sweden. The center studies human-computer interaction, or HCI, especially communications involving wireless devices. We spoke to Mr. Brown by Skype. He told us about an incident involving a friend who had flown to an airport in the

41、eastern United States. There he borrowed a GPS-equipped car to use during his stay.Barry Brown: “And they just plugged in an address and then set off to their destination. And, then it wasnt until they were driving for thirty minutes until they realized they actually put in a destination back on the

42、 West Coast where they lived. They actually put their home address in. So again, the GPS is kind of garbage in garbage out.”Mr Brown says this is a common human error. But, he says, what makes the problem worse has to do with some of the shortcomings, or failures, of GPS equipment.Barry Brown: “One

43、problem with many GPS units is they have a very small screen and they just tell you the next turn. Because they just give you the next turn, sometimes that means that it is not really giving you the overview that you would need to know that its going to the wrong place.”Barry Brown formerly served a

44、s a professor with the University of California, San Diego. While there, he worked on a project with Eric Laurier from the University of Edinburgh. The two men studied the effects of GPS devices on driving by placing cameras in peoples cars. They wrote a paper based on their research. It is called “

45、The Normal, Natural Troubles of Driving with GPS.”Barry Brown: “One of the things that struck us, perhaps the most important thing was that you have to know what youre doing when you use a GPS. There are these new skills that people have developed. There are these new competencies that you need to h

46、ave to be able to use a GPS because they sometimes go wrong.” Barry Brown says this goes against a common belief that GPS systems are for passive drivers who lack navigational skills.“The Normal, Natural Troubles of Driving With GPS” lists several areas where GPS systems can cause confusion for driv

47、ers. These include maps that are outdated, incorrect or difficult to understand. They also include timing issues related to when GPS commands are given.Barry Brown says to make GPS systems better we need a better understanding of how drivers, passengers and GPS systems work together.1. What is the best title for this passage?A. Is GPS system reliable to use?B. What is the use of GPS?C. How to make the most of GPS?D. Blame! GPS or Passengers?2. What is the implication of the underlined part?A. GPS is just a garbage device.B. GPS will not correct human err