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TPO45托福阅读文本及答案解析(Microscopes The Beringia Landscape)

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发表于 2018-11-6 11:52:09 | 显示全部楼层 |阅读模式
  1. The word "remnants" in the passage is closest in meaning 【词汇题】
  A remains
  B evidence
  C results
  D reminders
  答案:A
  解析:remnants残余,残留。对应A选项remains, 残余,遗骸。
  evidence证据。 results 结果。reminder提醒。

  2. The word "domain" in the passage is closest in meaning to 【词汇题】
  A field of expertise
  B challenge
  C interest
  D responsibility
  答案:A
  解析:domain领域。对应A选项field of expertise, 专业领域。
  challenge挑战。interest兴趣。 responsibility责任。

  3. According to paragraph 3, all of the following are true of the Beringian landscape EXCEPT. 【否定事实信息题】
  A There was little vegetation.
  B The mammal species there all survived into modern versions.
  C The climate was drier than it is today.
  D There were mountains with glaciers.
  答案:B
  解析:B选项的all过于绝对,与原文的This land mass supported… and somewhat modern versions of caribou…中的somewhat的表述不符。
  A选项对应原文的sparse vegetation. C选项对应原文的They need landscapes with strong winds that remove the winter snows, exposing the dry grasses beneath. D选项是原文glaciated mountains的同义替换。

  4. The purpose of paragraph 3 is to 【修辞目的题】
  A contrast today’s Beringian landscape with other landscapes in the American continent
  B describe the Beringian landscape during the last ice age
  C explain why so many Beringian species became extinct during the last ice age
  D summarize the information about Beringia that historians agree on
  答案:B
  解析:第3段主要就是描述last ice age期间的Beringian的景色,故B选项正确。A选项的contrast原文没有提到。C选项的explain的内容原文没有提到。D选项并没有对historians所同义的information进行summarize.

  5. The word "continuous” in the passage is closest in meaning to 【词汇题】
  A unpredictable
  B very cold
  C dangerous
  D uninterrupted
  答案:D
  解析:continuous 持续的。D选项的uninterrupted意为连续的、不间断的。符合continuous在原文的语境。unpredictable不可预知的,very cold 很寒冷的, dangerous危险的。

  6. Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. 【句子简化题】
  A According to biologist Dale Guthrie, mammal species require broad areas of vegetation to survive.
  B Dale Guthrie is an Arctic biologist who argued that broad areas of dense vegetation were surely enough to attract mammals such as mammoth, horse, and bison to Beringia.
  C Dale Guthrie argued that Beringia, though cold and dry, must have had enough dense vegetation to support the herds of mammoth, horse, and bison that lived there.
  D As long as Beringia was cold and dry, argued Dale Guthrie, dense vegetation grew in order to support the herds of mammoth, horse, and bison—the mammal species present there.
  答案:C
  解析:原句的逻辑while表示让步,句子核心:哺乳动物的存在让Dale认为即使cold and dry, 也一定有vegetation support 那些哺乳动物。C选项句子对应原句的两个核心,though的逻辑关系正确,因此C选项正确。

  7. According to paragraph 4,Guthrie believes that the teeth of ice-age fauna support which of the following conclusions? 【事实信息题】
  A Large mammals would not have been able to survive in the Beringian landscape.
  B Grasslands were part of the Beringian landscape.
  C Strong winds exposed dry grasses under the snow.
  D Horses and bison did not have the ability to search for food through deep snow cover..
  答案:B
  解析:此题根据关键词teeth, ice-age fauna定位到原文的nearly all of the ice-age fauna had teeth that indicate an adaptation to grasses and sedges. 此句中的indicate对应题干的support, B选项的grassland对应句中的an adaptation to grasses and sedges。故B选项正确。

  8. According to paragraph 4,which of the following statements is true of the relationship between ice- age Benngian animals and their environment? 【事实信息题】
  A When present in sufficient quantities, lichens and mosses provide enough nutrients to satisfy the needs of herds of large mammals.
  B The anatomy of certain animals present in that environment provides information about the intensity of winds there at that time.
  C The structure of the teeth of most ice-age fauna indicates that they preyed on animals such as the mammoth, horse, and bison.
  D Horses and bison are large enough that their feet can easily penetrate deep snow and uncover areas where they can feed on plant material.
  答案:B
  解析:A选项的表述与原文They could not have been supported by a modern flora of mosses and lichens的表述不符。B选项对应原文的Guthrie has…the landscape must have been subject to intense and continuous winds, …through deep snow cover. C 选项对应原文的…ice-age fauna had teeth that indicate…,但是选项中indicates的内容与原文不符。D选项的large enough… feet can easily penetrate的表述与原文 do not have the ability…的表述不符,错误。

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发表于 2018-11-8 17:31:26 | 显示全部楼层
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