每个人都有自己的一套背托福词汇的方法，网络上也充斥着各种技巧和经验。其实，适合自己的方法才是的。其它的可以作为参考，来帮助自己不断改进。下面，北京新航道托福小编和大家共享托福词汇练习，帮助大家自己的词汇量。接着看今天的20道托福词汇练习题，让你每日更进一步，最终实现质的飞跃。

　　241. The scientific investigation of an experience as private as consciousness is frustratingly beyond the usual tools of the experimental psychologist. This may be one reason that many researchers have shied away from the notion of mind and consciousness in nonhuman animals.

　　The phrase "shied away from" is closest in meaning to which of following?

　　(A) approached

　　(B) avoided

　　(C) respected

　　(D) allowed

　　242. Gallup' report of the experiment, published in a 1970 article, was a milestone in our understanding of animal minds, and psychologists wondered how widespread self- recognition would prove to be.

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

　　(A) significant development

　　(B) initial step

　　(C) universal concept

　　(D) obstruction to progress

　　243. Biological diversity has become widely recognized as a critical conservation issue only in the past two decades.

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

　　(A) negative

　　(B) essential

　　(C) interesting

　　(D) complicated

　　244. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems.

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

　　(A) predicted

　　(B) shocking

　　(C) unknown

　　(D) illuminating

　　245. However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment.

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

　　(A) concern

　　(B) determination

　　(C) carelessness

　　(E) extent

　　246. The conservatism of the early English colonists in North American, their strong attachment to the English way of doing things, would play a major part in the furniture that was made in New England.

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

　　(A) control of

　　(B) distance from

　　(C) curiosity about

　　(D) preference for

　　247. The mortise is the hole chiseled and cut into one piece of wood, while the tenon is the tongue of protruding element shaped from another piece of wood so that it fits into the mortise; and another small hole is then drilled (with the auger) through the mortised end and the tenon so that a whittled peg can secure the joint-thus the term "joiner."

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

　　(A) parallel

　　(B) simple

　　(C) projecting

　　(D) important

　　248. Locks and escutcheon plates-the latter to shield the wood from the metal key-would often be imported.

　　The word "shield" in line 23 closest in meaning to

　　(A) decorate

　　(B) copy

　　(C) shape

　　(D) protect

　　249. The establishment of these posts opened new roads and provided for the protection of daring adventurers and expeditions as well as established settlers.

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

　　(A) lost

　　(B) bold

　　(C) lively

　　(D) foolish

　　250. Throughout the wilderness, post bands provided entertainment and boosted morale.

　　The word "boosted" is closest in meaning to which of following?来源：北京新航道托福考试频道

　　(A) influenced

　　(B) established

　　(C) raised

　　(D) maintained

　　251. It slowed construction of forts and inhibited their military function.

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

　　(A) involved

　　(B) exploited

　　(C) united

　　(D) hindered

　　252. Anyone who has handled a fossilized bone knows that it is usually not exactly like its modern counterpart, the most obvious difference being that it is often much heavier.

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

　　(A) species

　　(B) version

　　(C) change

　　(D) material

　　253. But it is a wrong interpretation; fossils are frequently so dense because the pores and other spaces in the bone have become filled with minerals taken up from the surrounding sediments.

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

　　(A) joints

　　(B) tissues

　　(C) lines

　　(D) holes

　　254. Although nothing remains of the original collagen, some of its component amino acids are usually still detectable, together with amino acids of the noncollagen proteins of bone.

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

　　(A) sizable

　　(B) active

　　(C) moist

　　(D) apparent

　　255. In spite of Hunt's inviting facade, the living space was awkwardly arranged. Those who could afford them were quite content to reunion in the more sumptuous, single-family homes, leaving the Stuyvesant to young married couples and bachelors.

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

　　(A) open

　　(B) encouraging

　　(C) attractive

　　(D) asking

　　256. Those who could afford them were quite content to reunion in the more sumptuous, single-family homes, leaving the Stuyvesant to young married couples and bachelors.

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

　　(A) luxurious

　　(B) unique

　　(C) modern

　　(D) distant

　　257. The lot could also accommodate a rectangular tenement, though it could not yield the square, well-lighted, and logically arranged rooms that great apartment buildings require.

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

　　(A) harvest

　　(B) surrender

　　(C) amount

　　(D) provide

　　258. A snowfall consists of myriads of minute ice crystals that fall to the ground in the form of frozen precipitation.

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

　　(A) tiny

　　(B) quick

　　(C) clear

　　(D) sharp

　　259. The process can be very rapid, quickly creating sizable ice crystals, some of which adhere to each other to create a cluster of ice crystals or a snowflake.

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

　　(A) belong

　　(B) relate

　　(C) stick

　　(D) speed

　　260. In addition, mountainous sections or rising terrain can initiate snowfalls by the geographical lifting of a moist airstream.

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

　　(A) enhance

　　(B) alter

　　(C) increase

　　(D) begin

　　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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