托福阅读历年真题精选34_第2页

23 The word “partitioning” in line 2 is closest in meaning to

(A)   division

(B)   modification

(C)   opening

(D)   circulating

24 According to the passage, acidic soils tent to be associated with

(A)   a high salt content

(B)   an increase in farming

(C)   large amounts of rain

(D)   glacial meltwater

25 The word “enhanced” in line 13 is closest in meaning to

(A)   implied

(B)   increased

(C)   indicated

(D)   informed

26 How did glacial meltdown affect the soil in North America?

(A)   It redistributed the soil types

(B)   It added salt to the soil

(C)   It made the soil more neutral in content

(D)   It added minerals to the soil

27 The phrase “this regionalization scheme” in line 19 refers to the

(A)   movements of glacial deposits

(B)   patterns of natural vegetation

(C)   human modification of the North American environment

(D)   distinction between humid America and arid America

 

28 The word “transition” in line 23 is closest in meaning to

(A)   elevation

(B)   change

(C)   advantage

(D)   condition

29 The passage supports which of the following statements?

(A)   Arid America is not necessarily characterized by the presence of deserts

(B)   Most of Canada and the northeastern United States consists of short-grass prairies wherever natural vegetation has not been modified by humans

(C)   The accumulation of loess is primarily the result of irrigation

(D)   Glaciation removed the fertile layer of soil from much of the Mississippi Valley