雅思阅读实战模拟试题（一）

　　Questions 1-6

　　Do the following statemets reflect the claims of the writer in Reading Passage 1? Write your answer in Boxes 1-6 on your answer sheet.

　　TRUE if the statement reflets the claims of the writer FALSE if the statement contradicts the claims of the writer NOT GIVEN if it is possbile to say what the writer thinks about thisf1.The belief of neoclassical economics does not accord with the increasing evidence that humans make use of the emotions to make decisions.

　　2.Animals are urged by emotion to strive for an optimal outcomes or extract maximum utility from any situation.

　　3.George Loewenstein thinks that modern ways of shopping tend to allow people to accumulate their debts.

　　4.The more active the nucleus accumens was, the stronger the desire of people for the product in question became.

　　5.The prefrontal cortex of the human brain is linked to monetary loss and the viewing of upsetting pictures.

　　6.When the activity in nucleus accumbens was increased by the sense of a good bargain, people tended to purchase coffee.

　　Questions 7-9

　　Choose the appropriate letters A-D and write them in boxes 7-9 on your answe sheet.

　　7.Which of the following statements about orthodox economics is true?

　　A.The process which people make their decisions is rational.

　　B.People have a clear idea of their best interests in any situation.

　　C.Humans make judgement on the basis of reason rather then emotion.

　　D.People weigh the present good against future alternatives in shopping.

　　8.The word “miserliness” in line 3 of Paragraph J means__________.

　　A.people's behavior of buying luxurious goods

　　B.people's behavior of buying very special items

　　C.people's behavior of being very mean in shopping

　　D.people's behavior of being very generous in shopping

　　9.The three researchers are now designing the future experiments, which test

　　A.whether people with very different spending behaviour experience different amounts of pain in response to products.

　　B.whether buying an item with credit cards eases the pain of the same individuals compared with paying for it by cash.

　　C.whether the abstract nature of credit cards may modulate the “con” side of the calculation in favour of the “pro”.

　　D.whether the credit cards may subvert human instincts in ways that seem pleasurable but with a terrible effect.

　　Questions 10-13

　　Complete the notes below.

　　Choose NO MORE THAN THREE WORDS from Reading Passage 1 for each answer.

　　Write your answers in boxes 10-13 on your answer sheet.

　　To find what happens in the brain of humans when it is deciding things to buy, George Loewenstein and his co-researchers did an experiment by using the technique of fMRI.They found that different parts of the brain were invloved in the process.The activity in (10) was greatly increased with the displaying of certain product.The great activity was found in the insular cortex when (11)and the subject decided not to buy a product.The activity of the medial prefrontal cortex seemed to associate with both (12)informaiton.What interested Dr Loewenstein was the (13) of the assessment of the product and its price in different parts of the brain.

　　Part II

　　Notes to Reading Passage 1

　　1.the nucleus accumbens, the insular cortex, and the medial prefrontal cortex:

　　大脑的不同部位 (皮层，皮质等)

　　e.g.cerebellar cortex 小脑皮层cerebral cortex 大脑皮层

　　2.hone:

　　珩磨，磨快，磨练，训练使。。。更完美或有效.

　　3.subvert:

　　毁灭，破坏;摧毁：

　　4.piggyback：

　　骑在肩上;在肩上骑

　　5.deferment:

　　推迟、延迟、分期付款

　　6.aftertaste:

　　余味，回味事情或经历结束后的感觉，特指令人不快的感觉

　　Part III

　　Keys and explanations to the Questions 1-13

　　1. TRUE

　　See the second and third sentence in Paragraph A “Neoclassical economics assumes that the process of decision-making is rational.But that contradicts growing evidence that decision-making draws on the emotions—even when reason is clearly involved.”

　　2. TRUE

　　See the third sentence in Paragrph B “ Since emotion is the mechanism by which animals are prodded towards such outcomes, evolutionary and economic theory predict the same practical consequences for utility in these cases.”

　　3.FALSE

　　See the second sentence in Paragrph C “In particular, he suspects that modern shopping has subverted the decision-making machinery in a way that encourages people to run up debt.”

　　4.TRUE

　　See the last sentence in Paragrph E “Moreover, the level of its activity correlated with the reported desirability of the product in question.”

　　5.FALSE

　　See the second sentence in Paragrph F and G respectively “Excessively high prices increased activity in the insular cortex, a brain region linked to expectations of pain, monetary loss and the view

★Don't wash those fossils!

　　Standard museum practice can wash away DNA.

　　1.Washing，brushing and varnishing fossils — all standard conservation treatments used by many fossil hunters and museum curators alike — vastly reduces the chances of recovering ancient DNA.

　　2.Instead，excavators should be handling at least some of their bounty with gloves，and freezing samples as they are found，dirt and all，concludes a paper in the Proceedings of the National Academy of Sciences today.

　　3.Although many palaeontologists know anecdotally that this is the best way to up the odds of extracting good DNA，Eva-Maria Geigl of the Jacques Monod Institute in Paris，France，and her colleagues have now shown just how important conservation practices can be. This information，they say，needs to be hammered home among the people who are actually out in the field digging up bones.

　　4.Geigl and her colleagues looked at 3,200-year-old fossil bones belonging to a single individual of an extinct cattle species，called an aurochs. The fossils were dug up at a site in France at two different times — either in 1947，and stored in a museum collection，or in 2004，and conserved in sterile conditions at -20 oC.

　　5.The team's attempts to extract DNA from the 1947 bones all failed. The newly excavated fossils，however，all yielded DNA.

　　6.Because the bones had been buried for the same amount of time，and in the same conditions，the conservation method had to be to blame says Geigl. "As much DNA was degraded in these 57 years as in the 3,200 years before," she says.

　　Wash in，wash out

　　7.Because many palaeontologists base their work on the shape of fossils alone，their methods of conservation are not designed to preserve DNA，Geigl explains.

　　8.The biggest problem is how they are cleaned. Fossils are often washed together on-site in a large bath，which can allow water — and contaminants in the form of contemporary DNA — to permeate into the porous bones. "Not only is the authentic DNA getting washed out，but contamination is getting washed in," says Geigl.

　　9.Most ancient DNA specialists know this already，says Hendrik Poinar，an evolutionary geneticist at McMaster University in Ontario，Canada. But that doesn't mean that best practice has become widespread among those who actually find the fossils.

　　10.Getting hold of fossils that have been preserved with their DNA in mind relies on close relationships between lab-based geneticists and the excavators，says palaeogeneticist Svante P??bo of the Max Planck Institute for Evolutionary Anthropology in Leipzig，Germany. And that only occurs in exceptional cases，he says.

　　11.P??bo's team，which has been sequencing Neanderthal DNA，continually faces these problems. "When you want to study ancient human and Neanderthal remains，there's a big issue of contamination with contemporary human DNA," he says.

　　12.This doesn't mean that all museum specimens are fatally flawed，notes P??bo. The Neanderthal fossils that were recently sequenced in his own lab，for example，had been part of a museum collection treated in the traditional way. But P??bo is keen to see samples of fossils from every major find preserved in line with Geigl's recommendations — just in case.

　　Warm and wet

　　13.Geigl herself believes that，with cooperation between bench and field researchers，preserving fossils properly could open up avenues of discovery that have long been assumed closed.

　　14.Much human cultural development took place in temperate regions. DNA does not survive well in warm environments in the first place，and can vanish when fossils are washed and treated. For this reason，Geigl says，most ancient DNA studies have been done on permafrost samples，such as the woolly mammoth，or on remains sheltered from the elements in cold caves — including cave bear and Neanderthal fossils.

　　15.Better conservation methods，and a focus on fresh fossils，could boost DNA extraction from more delicate specimens，says Geigl. And that could shed more light on the story of human evolution.

　　(640 words nature )

　　Glossary

　　Palaeontologists 古生物学家

　　Aurochs 欧洲野牛

　　Neanderthal (人类学)尼安德特人，旧石器时代的古人类。

　　Permafrost (地理)永冻层

　　Questions 1-6

　　Answer the following questions by using NO MORE THAN THREE WORDS for each answer.

　　1.How did people traditionally treat fossils?

　　2.What suggestions do Geigl and her colleagues give on what should be done when fossils are found?

　　3.What problems may be posed if fossil bones are washed on-site? Name ONE.

　　4.What characteristic do fossil bones have to make them susceptible to be contaminated with contemporary DNA when they are washed?

　　5.What could be better understood when conservation treatments are improved?

　　6.The passage mentioned several animal species studied by researchers. How many of them are mentioned?

　　Questions 7-11

　　Do the following statements agree with the information given in the passage? Please write

　　TRUE if the statement agrees with the writer

　　FALSE if the statement does not agree with the writer

　　NOT GIVEN if there is no information about this in the passage

　　7.In their paper published in the Proceedings of the National Academy of Sciences ，Geigl and her colleagues have shown what conservation practices should be followed to preserve ancient DNA.

　　8.The fossil bones that Geigl and her colleagues studied are all from the same aurochs.

　　9.Geneticists don’t have to work on site.

　　10.Only newly excavated fossil bones using new conservation methods suggested by Geigl and her colleagues contain ancient DNA.

　　11.Paabo is still worried about the potential problems caused by treatments of fossils in traditional way.

　　Questions 12-13

　　Complete the following the statements by choosing letter A-D for each answer.

　　12.“This information” in paragraph 3 indicates:

　　[A] It is critical to follow proper practices in preserving ancient DNA.

　　[B] The best way of getting good DNA is to handle fossils with gloves.

　　[C] Fossil hunters should wear home-made hammers while digging up bones.

　　[D] Many palaeontologists know how one should do in treating fossils.

　　13.The study conducted by Geigl and her colleagues suggests:

　　[A] the fact that ancient DNA can not be recovered from fossil bones excavated in the past.

　　[B] the correlation between the amount of burying time and that of the recovered DNA.

　　[C] the pace at which DNA degrades.

　　[D] the correlation between conservation practices and degradation of DNA.

　　Suggested answers and explanations

　　1.washing，brushing，varnishing 见第一段。

　　2.handling with gloves / freezing samples ( any one of the two ) 见第二段。

　　3.losing authentic DNA / being contaminated / contamination ( any one of the three) 见第八段“Not only is the authentic DNA getting washed out，but contamination is getting washed in”(答being contaminated或 contamination比较保险)

　　4.they are porous porous 的意思是多孔的。见第八段“... which can allow water — and contaminants in the form of contemporary DNA — to permeate into the porous bones.”

　　5.human evolution 见第十五段。其中“shed light on sth”的意思是使某事显得非常清楚，使人了解某事。

　　6.4 分别为第四段的“an extinct cattle species，called an aurochs”，即欧洲野牛，已经绝迹;第十一段“Neanderthal”， 是人类学用语，尼安德特人，旧石器时代的古人类;第十四段“woolly mammoth”和“cave bear”，其中mammoth是猛犸，一种古哺乳动物。

　　7.T 见第二段。

　　8.T 见第四段“Geigl and her colleagues looked at 3,200-year-old fossil bones belonging to a single individual of an extinct cattle species，called an aurochs.”即他们研究的骨化石是一头欧洲野牛身上的。

　　9.NG

　　10.F 见第十二段第一、二句话。

　　11.T 见第十二段末句“But P??bo is keen to see samples of fossils from every major find preserved in line with Geigl's recommendations — just in case.”意即为保险起见，Paabo还是非常希望见到用Geigl建议的方法保存的化石样本。“just in case” 的意思是以防万一，就是Paabo对用传统保存处理的化石不放心的意思。

　　12.A 见第三段。This information就是前一句中“... just how important conservation practices can be”(to preserve good DNA)。“be hammered”之中hammer一词的意思是不断重复强调。

　　13.D 面信息。需要理解文章各处关于Geigl和她的同事所作的研究。