托福单词记忆对于大多数托福考生来说是一大难点。托福词汇的学习需要放在文章语境中去记忆和理解。本文为大家带来托福词汇模拟练习精选试题(36)，希望对大家托福备考有所帮助。
351. Young that are fed by their parents become nutritionally independent at a much greater fraction of their full adult size. And in the meantime those young are shielded against the vagaries of fluctuating of difficult-to-find supplies.
The word "shielded" is closest in meaning to which of following?
(A) raised
(B) protected
(C) hatched
(D) valued
352. A second, more dense atmosphere, however, gradually enveloped Earth as gasses from molten rocks within its hot interior escaped through volcanoes and steam vents.
The word "enveloped" is closest in meaning to which of following?
(A) surrounded
(B) changed
(C) escaped
(D) characterized
353. With much of the water vapor already condensed into water and the concentration of carbon dioxide dwindling, the atmosphere gradually became rich nitrogen.
The word "gradually" is closest in meaning to which of following?
(A) accidentally
(B) quickly
(C) in the end
(D) by degrees
354. At any rate, plant growth greatly enriched our atmosphere with oxygen. The reason for this enrichment is that plants, in the presence of sunlight, process carbon dioxide and water to produce oxygen.
The word "At any rate" is closest in meaning to which of following?
(A) regardless
(B) in addition
(C) although unlikely
(D) fortunately
355. Over 25,000 islands are scattered across the surface of the Pacific, more than in all the other oceans combined, but their land area adds up to little more than 125,000 square kilometers, about the size of New York State, and their inhabitants total less than two million people, about a quarter of the number that live in New York City.
The word "scattered" is closest in meaning to which of following?
(A) widely known
(B) usually estimated
(C) rarely inhabited
(D) irregularly distributed
356. Many are uninhabitable, by virtue of their small size and particular characteristics, but even the most favored are very isolated fragments of land, strictly circumscribed by the ocean, strictly limited in terms of the numbers of people they can support.
The phrase "by virtue of" is closest in meaning to which of following?
(A) regarding
(B) because of
(C) taking advantage of
(D) in place of
The word "circumscribed" is closest in meaning to which of following?
(A) located
(B) flooded
(C) restricted
(D) pushed
357. Simply surviving those ocean crossings of indeterminate length, in open canoes, to arrive on the shores of uninhabited and hitherto unknown islands, was a formidable achievement.
The word "indeterminate" is closest in meaning to which of following?
(A) undecided
(B) uncertain
(C) unacceptable
(D) increasing
358. The Rosetta stone thwarted scholars' efforts for several decades until the early nineteenth century when several key hieroglyphic phrases were decoded using the Greek inscriptions.
The word "thwarted" is closest in meaning to which of following?
(A) continued
(B) influenced
(C) encouraged
(D) frustrated
359. Lichens, probably the hardiest of all plants, live where virtually nothing else can---not just on rugged mountain peaks but also on sunbaked desert rocks.
The word "hardest" is closest in meaning to which of following?
(A) most unusual
(B) most basic
(C) most abundant
(D) most vigorous
360. Unlike other members of the plant kingdom, lichens are actually a partnership between two plants. The framework of a lichen is usually a network of minute hairlike fungus that anchors the plant.
The word "framework" is closest in meaning to which of following?
(A) structure
(C) condition
(D) environment
参考答案：B A D A D C C B D D A
以上就是为大家整理的托福词汇模拟练习精选试题，考生可在复习中进行练习以提高自己的考试水平。若您想了解托福考试更多相关信息请关注前程百利。
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