托福TPO49三篇阅读答案解析，供大家参考。
托福TPO49第一篇阅读答案解析：
1. The word "crucial" in the passage is closest in meaning to【词汇题】
A.Interesting
B.Important
C.Established
D.Understood
答案：B
解析：
crucial:至关重要的 。a是有趣的，b是重要的，c是建立的，d是理解的。综合选项，b最符合。
2.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.In the last few centuries,the erosion of coastline created the Neolithic stone circle in Brittany,France,at the same time that it destroyed the medieval villages in Yorkshire,England.
B.Coastlines have changed even in recent times as shown by the current locations of certain Neolithic monuments and medieval villages.
C.Recent changes in the coastlines near the Neolithic stone circle of Er Lannic in Brittany,France,and the medieval villages in Yorkshire,England,suggest that ancient coastlines changed in similar ways.
D.Changes in coastlines can lead to the creation of islands such as Er Lannic in France or the total erosion of the cliffs as in Yorkshire in England,though no considerable changes have occurred in recent periods.
答案：B
解析：
提取句子主干，将括号和从句里的内容先去掉，则句子为These have changed constantly through time,even in relatively recent periods,as can be seen from the Neolithic stone circle of Er Lannic,in Brittany,France or medieval villages in east Yorkshire,England。主语these指代前一句的ancient coastlines。句子主干的大意为“海岸线始终在改变，即使在最近的时期，这一现象可以通过Neolithic stone circle和 medieval villages看出“。b选项是对原句的同义替换表达，故正确。a选项的两个谓语动作，即created和destroyed原句中均未提及。c选项说recent coastline changes和ancient coastline changes改变的方式一样，原句未提及。d选项的lead to因果关系在原句中没有体现。
3. According to paragraph 1,the city of Ephesus in western Turkey is an example of which of the following?
A.Recent changes in the shoreline that have resulted in the creation of new land.
B.Port cities that have lost shoreline due to the erosion of land.
C.The ocean's role in the formation of new land.
D.The importance of changes in shoreline to cities located inland.
答案：A
解析：题干问Ephesus in western Turkey是以下哪项的例子。通过题干的Ephesus in western Turkey定位至原文最后一句话的后半部分，由as可以看出，答案为前半句。“silts deposited by rivers sometimes push the sea farther back,creating new land”，同义改写之后即为a。
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托福TPO49第二篇阅读答案解析：
1. The word "this" in the passage refers to【指代题】
A.parchment
B.pumice stone
C.Calf skin
D.Papyrus
答案：D
解析：
看this 所在的语境，往前看一句，就可以判定指Papyrus
2.The word "contracted" in the passage is closest in meaning to【词汇题】
A.translated
B.invented
C.shortened
D.borrowed
答案：C
解析：
contracted：收缩的。a是被翻译的，b是被发明的，c是被缩短的，d是被借入的。综合选项，c最符合。
3. The word "phenomena" in the passage is closest in meaning to【词汇题】
A.traditions
B.occurrences
C.perceptions
D.consequences
答案：B
解析：Phenomena : 现象。a是传统，b是事件; 发生的事，c是 知觉; 觉察，d是结果，成果。综合选项，b最符合。
托福TPO49第三篇阅读答案解析：
1.The word “potential” in the passage is closet in meaning to【词汇题】
A.Rate
B.Dominance
C.Capacity
D.Method
答案：C
解析：
potential, 潜能。A选项rate,比率。B选项dominance,统治。C选项capacity,能力，为同义替换，所以C选项正确。D选项method,方法。
2.According to paragraph 1,all of the following conditions created a favorable environment for the Industrial Revolution EXCEPT:【选择是非题】
A.An active overseas trade.
B.The stability of financial establishments.
C.A decline in the types of goods available for export.
D.The accessibility of money for investment.
答案：C
解析：
由于本段均在讨论industrial revolution的背景，无法根据题干具体定位，所以使用选项定位。A选项根据trade定位到第三句：An increasingly …… overseas colonies.表明海上贸易是贸易活动的促成因素，所以A选项错误。B选项根据financial establishment定位到第五句：Europe’s economic …… new investment.表明欧洲的经济机构非常强大，并且由足够的资产能够进行投资，所以B选项错误，D选项错误。C选项的意思是能够出口的商品类型的减少，这一点文中完全未提及，所以C选项正确。
3. Multiple:Select the TWO answers choices that according to paragraph 2,enabled the development of British technology.To receive credit you must select TWO answer choices.【细节题】
A.An accessible water transportation system
B.A mild climate and plenty of fresh water.
C.The availability of newly developed international technology.
D.A fuel supply that supported industrial growth.
答案：AD
解析：
由于本段均在讨论能够促成technology的一些条件，无法根据题干具体定位，所以使用选项定位。A选项根据water transportation system定位到第三句：Britain was …… natural waterway.表示英国拥有这种可以顺畅通行的自然水路，所以A选项正确。B选项的意思是温和的气候以及大量淡水，段落第一句话出现过climate，但是意思是经济优势创造了一种有利于科技发展的社会风气，并不是指气候情况，所以B选项错误。C选项international technology这个信息文中未提及，所以C选项错误。D选项根据fuel定位段落最后一句：Great Britain …… consumer goods.表明煤炭资源丰富促进了工业与商业，所以D选项正确。
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以上为托福TPO49三篇阅读答案解析，供大家参考。