4000 Essential English Words 4 – Answer Key
Unit 1
Exercise 1
1. rapid / rate
2. contemporary / vary
3. humid / toxic
4. texture / aroma
5. cluster / combined
6. subtle / soothing
7. cultivated / odor
8. palate / beverage
9. condensed / divine
10. paradise / plantations
Exercise 2
Part A
1. i
2. e
3. c
4. g
5. b
6. a
7. f
8. h
9. d
10. j
Part B
1. g
2.i
3. h
4. a
5. j
6. e
7.f
8.c
10. b
Reading Comprehension
1. T
2. T
3. F The Aztecs cultivated chocolate trees on plantations.
4. T
5. F The first chocolate beverages were made by the Mayans and Aztecs.
6. T
1. a
2. c
3. d
4. c
Unit 2
2. d
4. b
1. c
2. b
3. a
5. d
1. admiral
2. sour
3. Kerosene
4. conscience
5. grapefruits
6. steward
7. fiery
8. string
9. hay
10.hoop
Exercise 3
1. stake
2. flesh
3. wreck
4. accident
5. character
3. F The admiral put branches with sharp thorns in the monkey’s cages.
4. F The steward had a good conscience.
5. F The steward was horrified because the monkeys were thin and weak.
1. b
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Unit 3
1. option / idiot
2. torment / admonished
3. pinpoint / echoed
4. brag / perfect
5. switch / beware
6. eventual / pastime
7. awesome / disagreed
8. audible /conscious
9. immense / indirect
10. hint / thorough
2. j
3. f
5. i
7. d
8. g
9. h
10. c
1. e
4. i
5. a
6. c
9. b
10. f
3. T
4. F When the young man had an option of two trails, he always chose the more difficult of the two.
5. T
6. F When the young man arrived home, he knew that he had acted like an idiot.
1. d
Unit 4
3. b
5. c
6. b
7. a
8. a
1. perish / oblivious
2. roost / fond
3. rim / pit
4. soars / flight
5. moan / weep
6. typical / immoral
7. except / beak
8. trivial / disapprove
9. utterly / ivy
10. slippery / damp
2. F Eagle had a roost near the pit.
5. F Fox was oblivious to the hidden animals.
4. d
Unit 5
1. operate / cyberspace
2. recent / global
3. ignorant / weird
4. essays / edit
5. semester / index
6. fainted / lecture
7. typewritten / highlighted
8. resolution / gymnasium
9. moral / awhile
10. evaluated / private
7. j
9. f
10. d
2. g
4. j
10. a
2. F The private study rooms were downstairs.
3. F The computers in the private study rooms were operating correctly.
5. F The geography test was worth seventy percent of the final grade.
2. a
Unit 6
5. f
6. i
9. e
10. h
3. j
6. d
7. h
9. i
10. g
1. F Jack Frost likes playing tricks on folks.
3. F Jack Frost’s role is to decorate everything with frost and ice.
6. F When Jack Frost set fire to the food, the butter started to melt.
Unit 7
1. resources
2. rally
3. memorable
4. offense
5. account
6. obliged
7. proclaimed
8. volunteered
9. habitat
10. gratitude
1. F The architect wanted to build a new office building.
5. F ...
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