托福词汇题精选440题(39）

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托福词汇题精选440 题(39）

对于托福考试中单词题的解题方法，同学们还是多练为主，本系列汇总了托福词汇
题精选440 题 ，本期带来的是381-390，相信大家通过勤加练习，多看多记，一定可以
攻克托福词汇题的。

381. The simple of these is the carbon dioxide from the respiration of an ant cluster, a
chemical that acts pheromone to promote aggregation.

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

(A) organ(B) activity(C) group(D) cycle382. Fire ants also make use of an alarm
pheromone to alert workers to an emergency, and their scouts lay down a trail pheromone
as a guide during mass migrations.

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

(A) allow(B) transport(C) warn(D) provide383. A fire ant queen emits a chemical signal
that identifies her to the colony's workers. They respond by scurrying to gather around her.
The decomposing corpse of a dead ant also generates a signal, to which workers respond by
eliminating the corpse from the nest.

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

(A) agreeing(B) appearing(C) competing(D) rushing384. Rivers also reveal clay along
their banks, and erosion on a hillside may make clay easily accessible.

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

(A) buried(B) improved(C) available(D) workable385. Variations of clay composition and
the temperatures at which they are fired account for the differences in texture and
appearance between a china teacup and an earthenware flowerpot.

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

(A) reduce(B) explain(C) combine with(D) list all of386. One researcher observed babies
and their mothers in si x diverse cultures and found that, in all six languages, the mothers
used simplified syntax, short utterances and nonsense sounds, and transformed certain
sounds into baby talk.

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