Unit 23

Exercise 1

1. b

2. a

3. d

4. b

5. a

Exercise 2

1. locker

2. discord

3. blizzard

4. multicultural

5. cavity

6. courtesy

7. oversee

8. generate

9. frigid

10. pierce

Exercise 3

1. C

2. C

3. I

4. C

5. C

6. I

7. I

8. C

9. I

10. C

11. I

12. I

13. C

14. I

15. C

16. I

17. C

18. C

19. I

20. C

Reading Comprehension

Part A

1. T

2. T

3. F, The expert who oversaw the process made sure there wasn’t discord between the workers.

4. T

5. F, The builders couldn’t replicate the design from normal houses.

Part B

1. Tools were allocated to each worker.

2. Colored lights were inserted in the cavities in the roof.

3. They got right to work.

4. Nearby warm rooms were a courtesy to people who got too cold.

5. Erik stores his belongings in his ice locker.

Unit 24

Exercise 2

1. b

2. d

3. b

4. c

5. a

Exercise3

1. prototype

2. patent

3. overpopulation

4. sector

5. habitual

6. abide

7. output

8. fumes

9. export

10. scraps

Exercise 3

1. synthesis

2. suspend

3. subscribe

4. prototype

5. export

6. conversion

7. subsist

8. scrap

9. abide

10. defer

Exercise 4

1. C

2. C

3. C

4. I

5. I

Reading Comprehension

Part A

1. T

2. F, The environmental sectors of many governments are setting strict standards.

3. T

4. F, A conversion to clean cars means petroleum can be saved for the future.

5. T

Part B

1. A synthesis of these ideas will help to support the growing population.

2. Wasting resources and polluting have become habitual behaviors in the world today.

3. Many car companies already have patents on prototypes for very efficient cars.

4. People are realizing they can no longer justify their wasteful behavior.

5. Many countries are also subscribing to the point of view that immediate action is needed to provide the world with enough food.

Unit 25

Exercise 1

1. b

2. b

3. d

4. c

5. a

Exercise 2

1. acrobats

2. fluid

3. communal

4. inventive

5. judicial

6. statutes

7. rehearsed

8. industrious

9. Mandarin

10. metropolitan

Exercise 3

1. C

2. I

3. C

4. C

5. C

6. I

7. I

8. C

9. I

10. C

11. C

12. I

13. C

14. C

15. I

16. C

17. C

18. I

19. C

20. I

Reading Comprehension

Part A

1.F, The Chinese farmers became great acrobats while entertaining themselves during the winters.

2. T

3. T

4. T

5.F, Advocacy groups convinced the government to support Chinese acrobatics.

Part B

1. According to the passage, the farmers were inventive and industrious.

2. Acrobat’s training is communal. A veteran performer teaches the young people in the village.

3. In the past, people thought that acrobats were villains and just wanted to trick rich people.

4. The acrobats used vines to perform tricks high above the ground.

5. The acrobats were invited to perform in metropolitan areas as well as villages and performed for judicial officers and other important people.

Unit 26

Exercise 1

1. tolerant

2. saliva

3. restrain

4. sprint

5. emulate

6. guts

7. moist

8. forefinger

9. constrain

10. nope

Exercise 2

1. b

2. a

3. c

4. d

5. b

Exercise 3

1. C

2. C

3. I

4. I

5. C

6. I

7. I

8. I

9. C

10. C

11. I

12. C

13. C

14. I

15. C

Reading Comprehension

Part A

1. T

2. F, The scary man restrained her arms and legs and carried her to his house.

3. F, Anne’s guts began to hurt because she was intimidated by the horrible man.

4. T

5. T

Part B

1. They would hide behind the door of the school janitor’s closet, and then jump out to scare her.

2. Anne waited quietly until he fell asleep.

3. “You’ll stay right here until I get a ransom from your parents. Then I’ll be rich! ”

4. She boarded a bus to the police station. She told the police what happened, and they arrested the kidnapper.

5. “Weren’t you too scared to escape? ”