passage 34 外来人口导致生存竞争

★★☆

①Was resource intensification—an increase in labor and time devoted to subsistence activities in order to increase food yields—by Dorset Paleo-Eskimos and Recent Indians on the island of Newfoundland simply a response to population pressure? ②Not exactly. ③On Newfoundland, population pressure did not result from a steadily growing resident population but, rather, from the arrival and lingering presence of new and significantly different populations. ④Newfoundland’s hunter-gatherer populations—both resident and newcomer—adjusted to the presence of other populations through niche differentiation. ⑤Building on a tradition that emphasized marine resources, Dorset Paleo-Eskimos intensified their harvest of seals in response to the arrival of Recent Indians in the first few centuries A.D. ⑥Recent Indians who were more familiar with broad-based, interior-maritime adaptation, intensified this strategy to cope with the Dorset. 

① + ② 作者观点

     ↓

    ③

     ↓

    ④

     ↓

⑤ + ⑥ 

1. According to the passage, which of the following resulted from the arrival of the Recent Indians?

B

A. The Dorset Paleo-Eskimos were forced to compete with the Recent Indians for a limited supply of seals. 没有证据

B. The Dorset Paleo-Eskimos spent more time harvesting seals than they had in the past. 对应intensify

C. The Dorset Paleo-Eskimos increased the amount of labor and time devoted to defending their territory. 没有证据

D. The Dorset Paleo-Eskimos began to adopt new subsistence strategies they learned from the Recent Indians. 没有证据

E. The previously steady growth of the Dorset Paleo-Eskimo population came to a halt. 没有证据

2. Which of the following best describes the function of the highlighted sentence in the context of the passage as a whole? 现象解释类文章

D

A. It points out a flaw in a theory discussed earlier in the passage.没有证据/相反

B. It demonstrates the need for additional research on a phenomenon mentioned earlier in the passage.没有证据

C. It underscores the importance of a trait mentioned earlier in the passage. 没有证据

D. It supports an assertion made earlier in the passage.

E. It questions the evidence for a tradition mentioned earlier in the passage. 没有证据/相反