評(píng)論
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GRE出國考試模擬試題9
SECTION 6
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 keeptrack 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.
(D)Wetas typically forage more frequently during the months in which the researchers studied them than they do at other times.
(E)The researchers did not use other observational techniques to supplement their method of using small lights to track the nighttime behavior of wetas.
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 telephones 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
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 symptoms 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.
