中国留学之家，中国最优秀的留学咨询公司，全球顶尖大学申请专家！自测试题二（1）

路由器 - 2008-6-16 11:45:00

Time -30 minutes　　25 Questions
　　1. Soft Drink Manufacturer：Our new children's soft
　　drink， RipeCal， is fortified with calcium.
　　Since calcium is essential for developing
　　healthy bones， drinking RipeCal regularly
　　will help make children healthy.
　　Consumer Advocate：But RipeCal also contains large
　　amounts of sugar， and regularly consuming
　　large amounts of sugar is unhealthful， especially
　　for children.
　　In responding to the soft drink manufacturer， the
　　consumer advocate does which of the following？
　　（A）Challenges the manufacturer's claim about the
　　nutritional value of calcium in children's diets
　　（B）Argues that the evidence cited by the manufac-
　　turer， when properly considered， leads to a
　　conclusion opposite to that reached by the
　　manufacturer.
　　（C）Implies that the manufacturer of a product is
　　typically unconcerned with the nutritional value
　　of that product.
　　（D）Questions whether a substance that is healthful
　　when eaten in moderation can be unhealthful
　　when eaten in excessive amounts.
　　（E）Presents additional facts that call into question
　　the conclusion drawn by the manufacturer.
　　2.Over a period of several months， researchers attached
　　small lights to the backs of wetas-flightless insects
　　native to New Zealand-enabling researchers for the
　　first time to make comprehensive observations of the
　　insects' nighttime activities.Thus， since wetas forage
　　only at night， the researchers' observations will
　　significantly improve knowledge of the normal
　　foraging habits of wetas.
　　Which of the following is an assumption on which
　　the argument depends？
　　（A） Researchers were interested only in observing
　　the wetas' foraging habits and so did not keep
　　track of other types of behavior.
　　（B） No pattern of behavior that is exhibited by wetas
　　during the nighttime is also exhibited by wetas
　　during the daytime.
　　（C）Attaching the small lights to the wetas' backs
　　did not greatly alter the wetas' normal night-
　　time foraging habits.

路由器 - 2008-6-16 11:45:00

Questions 3-8　　On each day of the Monday through Friday workweek，
　　exactly two of three employees-George， Hilda， and
　　Irene-must remain on duty in the office to answer tele-
　　phones during the noon to 1 p.m. lunch break. In the
　　scheduling of telephone duty the following constraints
　　must be met：
　　Hilda and Irene have telephone duty together on
　　Tuesday.
　　George and Hilda have telephone duty together on
　　Thursday.
　　No one can have telephone duty on more than four of the
　　five days of the week.
　　3.Which of the following can be the week's telephone
　　duty schedule？
　　Monday Tuesday Wednesday Thursday Friday
　　（A） George George Hilda George Hilda
　　Hilda Irene Irene Hilda Irene
　　（B） George Hilda George Hilda George
　　Hilda Irene Hilda Irene Irene
　　（C） George Hilda George George George
　　Irene Irene Hilda Hilda Hilda
　　（D） Hilda Hilda George George Hilda
　　Irene Irene Hilda Hilda Irene
　　（E） Hilda Hilda George George George
　　Irene Irene Hilda Irene Irene
　　4.If Hilda has telephone duty for exactly two days of
　　the week， which of the following must be true？
　　（A）George and Irene have telephone duty together
　　on Wednesday.
　　（B）George and Hilda have telephone duty together
　　on Friday.
　　（C）Hilda and Irene have telephone duty together on
　　Wednesday.
　　（D）Hilda and Irene have telephone duty together on
　　Friday.
　　（E）Irene has telephone duty for exactly three days
　　of the week.
　　5.If Hilda and Irene have telephone duty together on
　　Monday and on Wednesday， which of the following
　　must be true？
　　（A）George and Hilda have telephone duty together
　　on Friday.
　　（B）George and Irene have telephone duty together
　　on Friday.
　　（C）George has telephone duty on exactly three of
　　the days of the week.
　　（D）Hilda has telephone duty on exactly three of the
　　days of the week.
　　（E）Irene has telephone duty on exactly three of the
　　days of the week.
　　6.If George and Hilda have telephone duty together on
　　Monday and George and Irene have telephone duty
　　together on Friday， any of the following can be true
　　EXCEPT：
　　（A）George and Hilda have telephone duty together
　　on Wednesday.
　　（B）George and Irene have telephone duty together
　　on Wednesday.
　　（C）George has telephone duty for four days of the
　　week.
　　（D）Irene has telephone duty for four days of the
　　week.
　　（E）Hilda and Irene have telephone duty together for
　　two days of the week.
　　7.If there is one pair of employees who have telephone
　　duty together for three of the five days， which of the
　　following must be true？
　　（A）George has telephone duty on Wednesday.
　　（B）George and Hilda have telephone duty together
　　for three days of the week.
　　（C）Hilda and Irene have telephone duty together for
　　three days of the week.
　　（D）One of the three employees has telephone duty
　　for exactly two days of the week.
　　（E）Exactly one of the workers has telephone duty
　　for exactly three days of the week.
　　8.Any of the following can be true EXCEPT：
　　（A）One pair of employees has telephone duty
　　together for exactly one day of the week
　　（B）One pair of employees has telephone duty
　　together for exactly four days of the week
　　（C）The pair of employees that has telephone duty
　　together on Monday also has telephone duty
　　together on Wednesday
　　（D）The pair of employees that has telephone duty
　　together on Tuesday also has telephone duty
　　together on Wednesday
　　（E）The pair of employees that has telephone duty
　　together on Thursday also has telephone duty
　　together on Friday
Question 9 is based on the following graph
　　9.Which of the following， if true， contributes most to
　　an explanation of the change in ice cream sales？
　　（A）Because of low demand for its transcontinental
　　flights departing from the airport， one airline
　　ceased offering such flights as of December
　　31，1993.
　　（B）There were fewer airline passengers who were
　　traveling to destinations outside the United
　　States in January1993 than there were in
　　January1992
　　（C）The average daily number of passengers at the
　　airport in the month of January was the same
　　for each of the three years
　　（D）In January 1993 a blizzard forced all flights out
　　of the airport to be canceled for three days，
　　stranding many passengers at the airport.
　　（E）There were five percent fewer commuter flights
　　scheduled to depart from the airport in January
　　1993 than there were in January of either 1991
　　or 1992
　　10.People whose bodies cannot produce the substance
　　cytochrome P450 are three times as likely to develop
　　Parkinson's disease， a disease that affects the brain，
　　as are people whose bodies do produce this substance.
　　Since cytochrome P450 protects the brain from toxic
　　chemicals， toxic chemicals probably play a role in the
　　development of Parkinson's disease.
　　Which of the following， if true， most strongly
　　supports the argument？
　　（A）It will soon be possible for cytochrome P450 to
　　be synthesized for the treatment of people
　　whose bodies cannot produce this substance.
　　（B）Many people whose bodies are unable to
　　produce cytochrome P450 lack the ability to
　　produce certain other substances as well.
　　（C）Cytochrome P450 has no effect on the brain
　　other than to protect it from toxic chemicals.
　　（D）People with Parkinson's disease often exhibit a
　　marked lessening in the severity of their symp-
　　toms when they are treated with dopamine， a
　　chemical produced naturally in the brain.
　　（E）Many people with Parkinson's disease have the
　　ability to produce cytochrome P450 naturally.

路由器 - 2008-6-16 11:49:00

11.The early universe contained only the lightest　　elements， hydrogen and helium. Heavier elements，
　　such as carbon， form only in nuclear reactions in
　　stars and are dispersed when the stars explode. A
　　recently discovered gas cloud contained carbon
　　several billion years ago， when the universe was
　　no more than two billion years old.
　　If the statements above are true， which of the
　　following must， on the basis of them， also be true？
　　（A）The earliest stars contained only hydrogen.
　　（B）Some stars were formed before the universe was
　　two billion years old.
　　（C）The carbon in the gas cloud later formed part of
　　some stars.
　　（D）No stars identified to date are as old as the gas
　　cloud.
　　（E）The gas cloud also contained hydrogen and
　　helium.
　　12.Sleep deprivation is a known cause of workplace
　　error， and many physicians frequently go without
　　sleep for periods of 24 hours or more. However， few
　　of these physicians have， in the course of a routine
　　examination by a peer， been diagnosed with sleep
　　deprivation.So there is little cause for concern that
　　habitual sleep deprivation will cause widespread
　　physician error.
　　The answer to which of the following questions
　　would be most helpful in evaluating the argument？
　　（A）Do physicians who have been diagnosed with
　　sleep disorders also show signs of other ills not
　　related to sleep deprivation？
　　（B）Is the ability to recognize the symptoms of sleep
　　deprivation in others significantly impaired by
　　habitual sleep deprivation？
　　（C）Do factors other than habitual sleep deprivation
　　ever lead to errors in the workplace on the part
　　of physicians？
　　（D）Of people who have recently been treated by
　　physicians， what percentage believe that many
　　physicians have occasionally suffered from sleep
　　deprivation？
　　（E）Is the incidence of sleep deprivation higher
　　among physicians than it is among other health
　　care workers？

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