其实，我们背诵掌握的托福词汇，在考试的时候也未必就会用到。要区分重点和非重点，这样也可以减轻自己的负担。下面，北京新航道托福小编和大家共享托福词汇练习题，通过做题来帮助大家掌一些常见的词汇。看看今天的20道托福词汇练习题吧，让你每日更进一步，最终实现质的飞跃。

　　361. When water is scarce (as is often the case on a mountain) , lichens may become dormant and remain in that condition for prolonged periods of time.

　　The word "prolonged" is closest in meaning to which of following?

　　(A) precise

　　(B) extended

　　(C) approximate

　　(D) regular

　　362. For decades, scientists wondered how the offspring of an alga and a fungus got together to form a new lichen; it seemed unlikely that they would just happen to encounter one another.

　　The word "encounter" is closest in meaning to which of following?

　　(A) lose

　　(B) support

　　(C) meet

　　(D) create

　　363. Newbery notwithstanding, Americans still looked on children's books as vehicles for instruction, not amusement, though they would accept a moderate amount of fictional entertainment for the sake of more successful instruction.

　　The word "notwithstanding" is closest in meaning to which of following?

　　(A) in spite of

　　(B) in addition to

　　(C) as a result of

　　(D) as a part of

　　364. As the children's book market expanded, then, what both public and publishers wanted was the kind of fiction Maria Edgeworth wrote: stories interesting enough to attract children and morally instructive enough to allay adult distrust of fiction.

　　The word "allay" is closest in meaning to which of following?

　　(A) clarify

　　(B) attack

　　(C) reduce

　　(D) confirm

　　365. The characters of children in this fiction were serious, conscientious, self-reflective, and independent --- strong>testimony to the continuing influence of the earlier American moralistic tradition in children's books.

　　The word" testimony to" is closest in meaning to which of following?

　　(A) inspiration for

　　(B) evidence of

　　(C) requirement for

　　(D) development of

　　366. The Moon, which has undergone a distinct and complex geological history presents a striking appearance.

　　The word "undergone" is closest in meaning to which of following?

　　(A) altered

　　(B) substituted

　　(C) experienced

　　(D) preserved

　　367. It is now known that the vast majority of the Moon's craters were formed by the impact of solid bodies with the lunar surface.

　　The word "vast" is closest in meaning to which of following?

　　(A) special

　　(B) Known

　　(C) varied

　　(D) great

　　368. The term "latent heat" refers to the energy that has to be used to convert liquid water to water vapor.

　　The word "convert" is closest in meaning to which of following?

　　(A) mix

　　(B) change

　　(C) adapt

　　(D) reduce

　　369. In the atmosphere, a large portion of the Sun's incoming energy is used to evaporate water, primarily in the tropical oceans.

　　The word "primarily" in the line 19 is closest in meaning to which of following?

　　(A) chiefly

　　(B) originally

　　(C) basically

　　(D) clearly

　　370. Other species may become better adapted to an environment, resulting in competition and, ultimately, in the death of a species.

　　The word "ultimately" is closest in meaning to which of following?

　　(A) exceptionally

　　(B) dramatically

　　(C) eventually

　　(D) unfortunately

　　371. One of the best-known examples of mass extinction occurred 65 million years ago with the demise of dinosaurs and many other forms of life.来源：北京新航道托福考试频道

　　The word "demise" is closest in meaning to which of following?

　　(A) change

　　(B) recovery

　　(C) help

　　(D) death

　　372. One interesting, and controversial, finding is that extinctions during the past 250 million years have tended to be more intense every 26 million years.

　　The word "finding" is closest in meaning to which of following?

　　(A) published information

　　(B) research method

　　(C) ongoing experiment

　　(D) scientific discovery

　　373. Even the name is an epithet, a synonym for the stunted, the scruffy, the insignificant, what is beautiful about such a place?

　　The word "insignificant" is closest in meaning to which of following?

　　(A) unimportant

　　(B) undisturbed

　　(C) immature

　　(D) inappropriate

　　374. Potter, for instance, found it convenient to locate their workshops near their source of clay, regardless of its relation to the center of settlement.

　　The phrase "regardless of" is closest in meaning to which of following?

　　(A) as a result of

　　(B) no matter what

　　(C) proud of

　　(D) according to

　　375. The techniques of pottery manufacture had evolved well before the Greek period, but marked stylistic developments occurred in shape and in decoration, for example, in the interplay of black and other glazes with the red surface of the fired pot.

　　The word "marked" is closest in meaning to which of following?

　　(A) original

　　(B) attractive

　　(C) noticeable

　　(D) patterned

　　376. The broad utility of terra-cotta was such that workers in clay could generally afford to confine themselves to either decorated ware and house wares like cooking pots and storage jars or building materials like roof tiles and drainpipes.

　　The word "confine" is closest in meaning to which of following?

　　(A) adapt

　　(B) train

　　(C) restrict

　　(D) organize

　　377. Some sixth-and fifth-century B. C. Athenian pottery establishments are known to have concentrated on a limited range of fine ware, but a rural pottery establishment on the island of Thasos produced many types of pottery and roof tiles too, presumably to meet local demand.

　　The word "presumably" is closest in meaning to which of following?

　　(A) frequently

　　(B) practically

　　(C) preferably

　　(D) probably

　　378. The expense of moving a family to the ever-receding frontier exceeded the means of many, and the cost of tools draft animals, a wagon, a well, fencing, and of building the simplest house, might come to$1,000---a formidable barrier.

　　The word "formidable" is closest in meaning to which of following?

　　(A) obvious

　　(B) predictable

　　(C) difficult

　　(D) manageable

　　379. Homesteaders usually came from districts not far removed from frontier conditions. And despite the intent of the law, speculators often managed to obtain large tracts.

　　The word "intent" is closest in meaning to which of following?

　　(A) purpose

　　(B) power

　　(C) effect

　　(D) invention

　　380. The smooth operation of an ant colony depends on ten to twenty different signals, most of which are pheromones(chemical signals triggering behavioral responses) .

　　The phrase "smooth operation" is closest in meaning to which of following?

　　(A) daily activity

　　(B) effective functioning

　　(C) delicate balance

　　(D) permanent location

　　上面就是今天大家要做的20到托福词汇练习题，希望在做题的过程中掌握的词汇，及其用法和相关的知识。最后预祝各位考生都能够突破词汇大关，顺利拿取理想成绩。

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