4000 Essential English Words 1 – Answer Key

Unit 1

Exercise 1

Part A

1. c

2. c

3. a

4. b

5. a

Part B

1. c

2. b

3. b

4. a

5. d

Exercise 2

1. a

2. b

3. a

4. b

5. a

6. b

7. b

8. a

9. a

10. b

Reading Comprehension

1. a

2. c

3. b

4. c

5. The lion saw his own face in the water.

Unit 2

Exercise 1

Part A

1. a, b

2. a, d

3. b, d

4. c, d

5. a, d

Part B

1. create

2. adventure

3. approach

4. secret

5. project

Exercise 2

1. a

2. b

3. b

4. b

5. a

6. a

7. b

8. a

9. b

10. a

Reading Comprehension

1. c

2. d

3. d

4. a

5. Mia and Liz went into the laboratory when Mia’s father left the laboratory to eat dinner.

Unit 3

Exercise 1

1. c

2. a

3. d

4. b

5. c

6. d

7. b

8. d

9. a

10. c

Exercise 2

1. a

2. c

3. b

4. d

5. b

Exercise 3

1. ever / Describe

2. chart / aliens

3. planet / universe

4. solve / fail

5. Several / view

Reading Comprehension

1. b

2. d

3. d

4. c

5. He viewed Mars on the trip.

Unit 4

Exercise 1

Part A

1. spread

2. content

3. shake

4. expected

5. avoided

Part B

1. a

2. a

3. b

4. b

5. b

Exercise 2

1. a

2. b

3. a

4. a

5. b

6. a

7. b

8. b

9. a

10. a

Reading Comprehension

1. a

2. c

3. b

4. d

5. They said the bell made people avoid him.

Unit 5

Exercise 1

1. d

2. c

3. d

4. b

5. c

6. d

7. c

8. d

9. b

10. a

Exercise 2

Part A

1. d

2. c

3. d

4. a

5. b

Part B

1. normal

2. wild

3. hurt

4. relax

5. field

Reading Comprehension

1. d

2. a

3. d

4. c

5. She requested, “Will you carry me home?”

Unit 6

Exercise 1.

Part A

1. return

2. wise

3. pet

4. weather

5. face

Part B

1.  ghost / fright

2.  dead / upset

3.  reached / advantage

4.  escape / distance

5.  individual / community

Exercise 2.

1. a

2. b

3. a

4. b

5. a

6. a

7. b

8. a

9. a

10. a

Reading Comprehension

1. a

2. c

3. d

4. a

5. She lived by a large river.

Unit 7

Exercise 1

Part A

1. c

2. a

3. a

4. b

5. b

Part B

1. allowed

2. harm

3. famous

4. claim

5. divided

Exercise 2

1. a

2. b

3. b

4. b

5. a

6. a

7. a

8. b

9. b

10. b

Reading Comprehension

1. b

2. a

3. a

4. d

5. He would have to announce who would become king.

Unit 8

Exercise 1.

1. familiar

2. necessary

3. theory

4. purpose

5. encourage

6. accept

7. balance

8. pattern

9. contrast

10. single

Exercise 2.

Part A

1. c

2. a

3. d

4. a

5. b

Part B

1. b

2. a

3. a

4. b

5. a

Reading Comprehension

1. b

2. c

3. c

4. d

5. She arranged her hair and wore nice clothes.

Unit 9

Exercise 1

1. c

2. c

3. a

4. d

5. b

6. a

7. b

8. c

9. b

10. a

Exercise 2

1. b

2. c

3. b

4. d

5. c

Exercise 3

1. beach / wave

2. island / ocean

3. fix / damage

4. rock / still

5. throw / step

Reading Comprehension

1. a

2. b

3. c

4. d

5. Some starfish went back into the water, and they were safe.

Unit 10

Exercise 1.

1. essential

2. benefit

3. trouble

4. certain

5. function

6. site

7. image

8. separate

9. remain

10. tail

Exercise 2.

Part A

1. effect / benefit

2. immediate / primary

3. proud / rested

4. far / separate

5. guard / remain

Part B

1. a

2. b

3. a

4. a

5. a

Reading Comprehension

1. c

2. a

3. c

4. b

5. He only rested a few eyes at a time. The others stayed awake.

Unit 11

Exercise 1.

1. b

2. c

3. d

4. c

5. d

Exercise 2.

1. ground

2. spend time

3. sail

4. wake

5. forest

Exercise 3.

1. prepare

2. serious

3. strange

4. conversation

5. collect

6. introduce

7. decision

8. truth

9. compete

10. asleep

Reading Comprehension

1. c

2. a

3. c

4. b

5. She dreamed about a man with brown hair and brown eyes. It was the man she would wed.

Unit 12

Exercise 1.

Part A

1. c

2. b

3. a

4. c

5. c

Part B

1. neighbor

2. magazine

3. professional

4. compared

5. attitude

Exercise 2.

1. b

2. a

3. b

4. a

5. a

6. b

7. a

8. a

9. b

10. b

Reading Comprehension

1. a

2. c

3. b

4. b

5. His friends felt excited about seeing his painting.

Unit 13

Exercise 1:

1. b

2. a

3. d

4. d

5. a

Exercise 2:

1. spot

2. feed

3. cell

4. whole

5. correct

Exercise 3:

1. b

2. a

3. a

4. b

5. a.

Exercise 4:

1. cell / structure

2. lord / owe

3. position / spot

4. whole / hole

5. feed / crop

Reading Comprehension:

1. d

2. b

3. c

4. d

5. At the end of the week the lord will increase how much money he has to pay.

Unit 14

Exercise 1.

Part A.

1. exam

2. magical

3. technology

4. outline

5. descriptions

Part B.

1. a

2. b

3. a

4. a

5. b

Exercise 2.

1. a

2. b

3. b

4. a

5. a

6. b

7. a

8. a

9. b

10. a

Reading Comprehension.

1. d

2. b

3. c

4. a

5. Her parents made her join the basketball team.

Unit 15

Exercise 1

1. b

2. c

3. a

4. b

5. d

6. a

7. b

8. c

9. d

10. a

Exercise 2

Part A

1. across

2. respond

3. race

4. observed

5. risk

Part B

1. a

2. a

3. b

4. a

5. b

Reading Comprehension

1. a

2. d

3. c

4. b

5. The rabbit saw the turtle almost at the finish line.

Unit 16

Exercise 1:

1. c

2. a

3. b

4. d

5. c

6. a

7. b

8. a

9. a

10. c

Exercise 2:

1. a / d

2. b / d

3. b / c

4. a / b

5. a / b

Exercise 3:

1. academy

2. process

3. maybe

4. theater

5. flat

Reading Comprehension

1. c

2. b

3. a

4. b

5. Jeff was going to a concert.

Unit 17

Exercise 1

Part A

1. d

2. a

3. d

4. b

5. d

Part B

1. fair

2. waste

3. disappear

4. whether

5. determine

Exercise 2

Part A

1. hill

2. solution

3. response

4. puddles

5. appreciate

Part B

1. a

2. a

3. b

4. a

5. a

Reading Comprehension

1. c

2. b

3. b

4. c

5. “It doesn’t matter whether you want to fill it or not. You already did.”

Unit 18

Exercise 1

1. b

2. c

3. b

4. c

5. c

6. d

7. a

8. d

9. c

10. d

Exercise 2

Part A

1. recommend

2. argue

3. products

4. communicate

5. offer

Part B

1. treated

2. fresh

3. select

4. dish

5. gathered

Reading Comprehension

1. a

2. a

3. d

4. b

5. “I recommend doing some work,” said the little red chicken. “Use a tool to plant your own wheat.

Unit 19

Exercise 1.

Part A.

1. a

2. c

3. b

4. d

5. b

Part B.

1. wood

2. policy

3. staff

4. toward

5. speech

Exercise 2.

Part A.

1. speech

2. bother

3. wood

4. staff

5. alive

Part B.

1. speech

2. policy

3. staff

4. bones

5. mentioned

6. doubt

7. injustice

8. conclusion

9. however

10. bothered

Reading Comprehension

1. b

2. c

3. a

4. c

5. The weather became very bad.

Unit 20

Exercise 1

1. b

2. d

3. a

4. b

5. c

Exercise 2

1. meat

2. destroy

3. serve

4. regard

5. war

Exercise 3

1. b

2. a

3. a

4. b

5. b

6. a

7. a

8. a

9. b

10. b

Reading Comprehension

1. b

2. c

3. a

4. b

5. He turned away and went home.

Unit 21

Exercise 1.

1. locate

2. clerk

3. hero

4. pain

5. hurried

Exercise 2.

1. a

2. a

3. b

4. a

5. b

Exercise 3.

1. a

2. b

3. b

4. a

5. b

6. a

7. a

8. a

9. a

10. b

Reading Comprehension

1. b

2. a

3. c

4. b

5. Katy played games, read books, and got flowers for patients.

Unit 22

Exercise 1

Part A

1. a

2. d

3. c

4. a

5. c

Part B

1. b

2. b

3. b

4. a

5. b

Exercise 2

1. a

2. a

3. a

4. b

5. a

6. a

7. b

8. a

9. a

10. a

Reading Comprehension

1. d

2. a

3. b

4. b

5. “If anything strange occurs, call us. If you help us catch the thief, you’ll earn a reward.”

Unit 23

Exercise 1:

1. matches

2. remove

3. average

4. sounded

5. advance

6. member

7. athlete

8. course

9. passenger

10. personality

Exercise 2:

1. b

2. a

3. a

4. b

5. b

Exercise 3:

1. d

2. a

3. b

4. a

5. d

Reading Comprehension

1. b

2. c

3. a

4. d

5. It was a course on water safety. They learned how to be safe passengers on a boat.

Unit 24

Exercise 1

Part A

1.  d

2.  a

3.  d

4.  c

5.  c

Part B

1. strike

2. exercise

3. perform

4. passage

5. pressure

Exercise 2

1.  a

2.  a

3.  b

4.  a

5.  a

6.  b

7.  b

8.  a

9.  a

10.  a

Reading Comprehension

1. c

2. b

3. b

4. a

5. He looked at Tim and said, “I thought I was smart, but I learned a new term today: friendship.”

Unit 25

Exercise 1

Part A

1. d

2. c

3. a

4. c

5. b

Part B

1. produce

2. range

3. populate

4. sign

5. period

Exercise 2

1. b

2. a

3. a

4. b

5. b

6. a

7. b

8. b

9. b

10. a

Reading Comprehension

1. d

2. a

3. a

4. c

5. The video’s features made Joe associate trash with hurting people and their environment.

Unit 26

Exercise 1

Part A

1. a

2. a

3. b

4. c

5. c

Part B

1. react

2. society

3. neither

4. final

5. prove

Exercise 2

Part A

1. advice / suggest

2. attention / situated

3. standard / dropped

4. attracted / reacted

5. further / along

Part B

1. a

2. a

3. a

4. a

5. b

Reading Comprehension

1. c

2. a

3. b

4. c

5. They laughed at Tom and Archie. They started to throw stones.

Unit 27

Exercise 1:

1. b

2. a

3. b

4. d

5. d

6. b

7. a

8. a

9. d

10. d

Exercise 2:

1. a

2. a

3. b

4. a

5. a

Exercise 3:

1. gift / value

2. coast / desert

3. hunger / bite

4. tour / journey

5. quite / Examine

Reading Comprehension

1. b

2. b

3. c

4. a

5. He asks the bug a question first.

Unit 28

Exercise 1:

1. professor

2. barely

3. predict

4. garbage

5. list

6. boring

7. band

8. schedule

9. message

10. rush

Exercise 2:

1. b, c

2. a, c

3. c, d

4. a, c

5. a, d

Exercise 3:

1. a

2. b

3. b

4. a

5. a

Reading Comprehension

1. a

2. c

3. a

4. b

5. To tell him that they would be late.

Unit 29

Exercise 1.

1. b

2. d

3. a

4. a

5. d

6. c

7. b

8. c

9. d

10. c

Exercise 2.

Part A.

1. advertise

2. major

3. competition

4. skills

5. vote

Part B.

1. a

2. b

3. b

4. a

5. b

Reading Comprehension

1. a

2. d

3. c

4. c

5. The sun was inside the bag!

Unit 30

Exercise 1

1. c

2. b

3. c

4. b

5. d

6. b

7. a

8. d

9. b

10. b

Exercise 2

1. b

2. a

3. a

4. a

5. b

6. b

7. a

8. a

9. a

10. b

Reading Comprehension

1. d

2. a

3. c

4. a

5. Later, the man returned to trick more people. Beth saw him, and the memory of the cat came back.

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