HOLT Vocabulary Workshop Fourth Course - Lesson 24

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 HOLT Vocabulary Workshop Fourth Course - Lesson 24

 HOLT Vocabulary Workshop Fourth Course - Lesson 24
CONTEXT: The Environment

Laboratory Lakes for Acid Rain 


In Canada, scientists have turned a group of forty-six remote lakes into a laboratory known as the Experimental Lakes Area. In 1976, scientists began experiments to determine the effects of adding acids to the lakes. Results have proven that acids-such as those found in acid rain caused by the burning of fossil fuels-do damage plant and animal life. 

These ten Vocabulary Words will be used.
  1. Oblivious
  2. Subsidiary
  3. Cant
  4. Equilibrium
  5. Rectify
  6. Substantially
  7. Arbiter
  8. Stratagem
  9. Disconcerting
  10. Breaching
Each word is provided with its syllables, pronunciation, part of speech, definition, examples, synonyms, and antonyms.

ar·bi·ter
ärbitər
noun
someone who has the authority to decide an issue or settle a dispute.
They trusted their older sister's judgment and asked her to be the arbiter of their dispute.
synonyms: arbitrator, decider, mediator, umpire
breach
brēch
noun
a violation, as of a law, code, or promise.
When he left his fiancee for another woman, she took him to court for breach of promise.
If you don't sing in this concert, it may be considered a breach of your contract.
synonyms: infraction, infringement, transgression, violation
antonyms: observance
cant 
kant
noun
insincere statements made to give one the appearance of goodness, piety, or the like.
I'm tired of hearing the cant of these hypocrites in politics.
synonyms: claptrap, lip service, sanctimony
dis·con·cert
diskənsurt
transitive verb
to upset the calm or self-assurance of; ruffle.
The announcement of a change in the manner of judging disconcerted the competitors.
antonyms: assure
e·qui·lib·ri·um
ēkwəlibrēəm[or]ekwəlibrēəm
noun
a state in which all acting forces cancel each other to create balance or stability.
After teetering, the gymnast somehow regained her equilibrium and stayed in the handstand.
synonyms: balance, equipoise, poise
antonyms: imbalance
ob·liv·i·ous
əbliəs
adjective
not conscious or paying attention; unknowing or unaware (usually followed by "to" or "of").
Engrossed in the television program, he was oblivious to the noise of the children.
My mother was busy with her own life and was oblivious to all my struggles.
They talked and talked, oblivious of the time that was passing.
synonyms: insensible, unaware, unconscious, unmindful
antonyms: aware, conscious
rec·ti·fy
rekti
transitive verb
to put right or correct (a bad situation, injustice, or the like); remedy.
She knew she'd made a bad decision, and she hoped to rectify it.
synonyms: amend, remedy, repair, right
strat·a·gem
strajəm
noun
a plan or trick to deceive, surprise, or outwit an opponent, especially as a military maneuver.
The opossum's stratagem of playing dead discourages certain predators.
synonyms: maneuver, tactic
sub·sid·i·ar·y
səbsiā
adjective
assisting or supplementing.
The medical research program has a subsidiary organization for fund-raising.
synonyms: ancillary, auxiliary
antonyms: main, primary
sub·stan·tial·ly
səbstanshə
adverb
to a large or significant degree; considerably.
Danish and German are substantially different although they are related historically.
author-img
Mr. ‏El-Sayed Ramadan ‎ ‎

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