大全11题 12 题

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in considering possible explanations for this finding ,the researchers dismissed demographic bias because older individuals were not overrepresented in the fossil samples,they rejected preservational bias because a total absence of breakage in two extinct species demonstrated that the fractures were no the result of abrasion within the pits.they ruled out local bias because breakage data obtained from  other Pliston sites (就是讲这个化石的所在的时期) were similar to the La brea data(这化石的所在地)

11.,the researcher's conclusion concerning the absence of demographic bias would be most seriously undermined if it were found that

A the older an individual carnivore is, the more likely it is to have a large number of tooth fractur

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b the average age at death of present day carnivore is greater than the average age at death of a Pleistocene carnivore

c in Pleistocene carnivore species, older individuals consumed carcasses as thoroughly as did younger individuals

(D) the methods used to determine animals’ ages in fossil samples tend to misidentify many older individuals as younger individuals

(E) data concerning the ages of fossil samples cannot provide reliable information about behavioral differences between extinct carnivores and present-day carnivores

 

12 According to the passage, if the researchers had NOT found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that

(A) the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits

(B) the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits

(C) Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcasses

(D) all Pleistocene carnivore species differed behaviorally from present-day carnivore species

(E) predator densities during the Pleistocene era were extremely high

不好意思　字体有点问题，这个题目我感觉我的逻辑有点问题　o

请大家帮忙分析一下　谢谢你们

12 According to the passage, if the researchers had NOT found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that

(A) the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits

(B) the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits

(C) Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcasses

(D) all Pleistocene carnivore species differed behaviorally from present-day carnivore species

(E) predator densities during the Pleistocene era were extremely high

不好意思　字体有点问题，这个题目我感觉我的逻辑有点问题　o

请大家帮忙分析一下　谢谢你们

c in Pleistocene carnivore species, older individuals consumed carcasses as thoroughly as did younger individuals

(D) the methods used to determine animals’ ages in fossil samples tend to misidentify many older individuals as younger individuals

(E) data concerning the ages of fossil samples cannot provide reliable information about behavioral differences between extinct carnivores and present-day carnivores

 

12 According to the passage, if the researchers had NOT found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that

(A) the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits

(B) the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits

(C) Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcasses

(D) all Pleistocene carnivore species differed behaviorally from present-day carnivore species

(E) predator densities during the Pleistocene era were extremely high

不好意思　字体有点问题，这个题目我感觉我的逻辑有点问题　o

请大家帮忙分析一下　谢谢你们

12 According to the passage, if the researchers had NOT found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that

(A) the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits

(B) the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits

(C) Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcasses

(D) all Pleistocene carnivore species differed behaviorally from present-day carnivore species

(E) predator densities during the Pleistocene era were extremely high

不好意思　字体有点问题，这个题目我感觉我的逻辑有点问题　o

请大家帮忙分析一下　谢谢你们