2020年1月12日托福阅读真题+题目+答案：Changes in the Amount of Forest on the Great Plains

2020年1月12日托福阅读真题+题目+答案：Changes in the Amount of Forest on the Great Plains

2020年1月12日托福阅读真题+题目+答案：Changes in the Amount of Forest on the Great Plains大平原上的森林覆盖量变化，该真题分别在2016年9月28日和2017年11月18日重复考过。以下是本篇阅读真题原文及题目和答案！

At the end of the last ice age, some 8,000 to 10,000 years ago, the climate was cool and damp, and a dense coniferous (evergreen) forest occupied the Great Plains, the vast region stretching from Alberta, Saskatchewan, and Manitoba in Canada south through Texas. A dark mantle of spruce trees extended from what are now the Canadian prairies south through the Dakotas into the central states of the United States, while pinewoods appear to have flourish on the southern plains of the United States. But as the chill of the glaciation gradually lifted, the climate eased into a drier and warmer phase, marked by more frequent droughts, and the forest was forced to retreat to the north. Within a remarkably short time, the forests of the Great Plains either surrendered directly to grasses or else gave way first to deciduous trees (trees that lose their leaves seasonally) and then to prairie grasses.

1.The word “dense” in the passage is closest in meaning to

A.large

B.new

C.dark

D.thick

2.The word “eased into” in the passage is closest in meaning to

A.returned to

B.slowly entered

C.went through

D.rapidly shifted to

3.According to paragraph 1. What was true of the region stretching from the present Canadian prairies south through the southern plains of the United States 8,000 to 10,000 years ago?

A.It was largely covered with grasses.

B.It was largely covered with glaciers.

C.It was covered with coniferous forests.

D.Its forests contained a mixture of deciduous trees.

4.According to paragraph 1, North America changed in all of the following ways after the end of the last ice age EXCEPT:

A.The climate became less wet.

B.Coniferous forests generally retreated northward.

C.Deciduous trees began to replace grasslands in some areas.

D.Grasslands took over in areas once dominated by woody plants.

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