Extensive Reading-Book D Unit 53 (E)

advent

an invention, something coming into being
The advent of the personal computer revolutionized the society.

amass

to collect, to gather
He amassed a great fortune over the years as a trial lawyer.

circumstances

a condition or factor which has effects on others
Several circumstances lead to his decision to leave the company.

conducted

to bring about, to lead
The scientists conducted their research at the laboratory.

critiqued

to review or criticize
His play was critiqued by editors of a national magazine.

demeaning

to lower in quality or character
His opinions of his friends was demeaning.

digestive

pertaining to digestion
The old man complained of problems with his digestive tract.

exemplified

to give an example, to show something
His actions exemplified the kind of behavior the president hoped for.

frequency

a condition of ocurring frequently
The frequency of his calls to his brother increased over the years.

metronome

a device used for keeping time or a beat
She practiced the piano with the help of a metronome.

negative

marked by denial or without affirmation
The candidate received a negative response for changing his views.

outgrowth

a situation of outgrowing something, or of being derived from something else
His increased performance was an outgrowth of continued practice.

pellet

a small, round piece of something
The food pellets were offered to the rabbit in the morning.

positive

characterized by affirmation
The musician received a positive response from the public.

reflexes

an automatic response to a stimulus
His reflexes closed his eyes when he looked at the sun.

reinforcement

a condition of reinforcing, adding strength or support
The police reinforcement helped control the situation.

saliva

an enzyme secreted into the mouth by the salivary glands
saliva helps keep the mouth clean by breaking down starches.

stimuli

something that motivates some type of activity
stimuli were presented to subjects to test their reactions.

unconditioned

void of limitations or conditions
It was an unconditioned response they were interested in.

vogue

fashion, a popular item
Different fashions come in and out of vogue over the years.