UNIT 1 INCREASE YOUR VOCABULARY

UNIT 2 HEAT PUMPS

UNIT 3 MICE IN MONGOLIA

UNIT 4 GAINING KNOWLEDGE FOR LIFE

UNIT 5 VOICES OF TIME

UNIT 6 THE LITTLE GIRL WHO COULDN'T SMILE

UNIT 7 THE"SHOW-ME"STATE—MISSOURI

UNIT 8 EYE COMMUNICATION

UNIT 9 BURNING UP MONEY AND YOURSELF

UNIT 10 WATER SUPPLY

UNIT 11 THE GREAT AMERICAN GARAGE SALE

UNIT 12 EMPLOYMENT INTERVIEW(Ⅰ)

UNIT 13 EMPLOYMENT INTERVIEW(Ⅱ)

UNIT 14 ADULTS NOT ADMITTED

UNIT 15 PAPER HOUSING

UNIT 16 THE NEW WORLD

UNIT 17 THE FUTURE OF INTERNATIONAL TRADE

UNIT 18 MISERY OF SHYNESS

UNIT 19 THE AMERICAN COWBOY

UNIT 20 THE STOCK MARKET

UNIT 21 GETTING ALONG WITH YOUR BOSS

UNIT 22 SHARKS

UNIT 23 TOURISM(Ⅰ)

UNIT 24 TOURISM(Ⅱ)

UNIT 25 MATERIAL WEALTH AND HARD WORK

UNIT 26 WORLD FOOD AND NATURAL RESOURCES OUTLOOK

UNIT 27 THE SOCIAL COST OF DRUG USE

UNIT 28 THE VALUEOF FRIENDSHIP

UNIT 29 NURSING HOMES

UNIT 30 SMELL

ANSWER KEY