Lesson 15

Question 1

foster (v)

SYN stimulate

Answer 1

(foster habit) پرورش دادن، باعث شدن

• the industrial revolution fostered the rise of the middle class.
• parents usually foster the development of good habits in their children.

Question 2

gain (v)
SYN attain
(adj) gainful
(n) gain

Answer 2

(gain experience)

• he gained a lot of experience working as a volunteer.
• he gain in knowledge was impressive.

Question 3

halt (v)
SYN stop
(adj) halting
(adv) haltingly

Answer 3

• bus service to the city was halted due to poor road conditions.
• the supervisor put a halt to the tardiness of the employees.

Question 4

harbor

SYN shelter

Answer 4

(harbor a terrorist)

• he harbors ill feelings for her.
• they harbored the political refugee in their home.

Question 5

insignificant (adj)
SYN meaningless
(adv) insignificantly
(n) insignificance

Answer 5

• the amount of rainfall this summer has been insignificant.
• the insignificance of his comment become apparent with the passing of time.

Question 6

mysterious (adj)

(adv) mysteriously
(n) mystery

Answer 6

(mysterious neighbors)

• he had a mysterious effect on everyone who heard him speak.
• the man’s disappearance was a mystery.

Question 7

perilous (adj)
SYN dangerous
(n) peril
(adv) perilously

Answer 7

• it’s perilous to exceed speed limit.

* there are ample perils in the sport of mountain climbing.

Question 8

promote (ver)
SYN boost
(n) promoter, promotion

Answer 8

(I need a job promotion, promote tourism)

• many nations promote tourism to lure foreign currency.
• the customers responded favorably to the half-price promotion.

Question 9

redundant (adj)
SYN repetitious
(n) redundancy
(adj) redundantly

Answer 9

(I was redundant)

• students who ask teachers to “repeat that again” are being redundant because “repeat” means “again”.
• Lush, redundant vegetation is common in tropical climates.

Question 10

substantial (adj)
SYN significant
(adj) substantive
(adv) substantially

Answer 10

(play substantial role, substantial achievements)

• the discovery of a vaccine for smallpox was a substantial medical achievement.
• this substantive article will change your opinion of rock music.

Question 11

trait (n)

SYN characteristic

Answer 11

(personality trait)

• her scene of humor and cheerful personality are some of her most impressive traits.
• Alma’s blonde hair is a trait inherited from her father.

Question 12

durable (adj)
SYN sturdy
(n) durability
(n) duration

Answer 12

(sturdy shoes)

• it was a durable refrigerator, but it finally broke.
• the durability of tires is a key factor in determining their quality.