UNIT1 Family and friends UNIT2 University life UNIT3 Internet life UNIT4 Famous persons UNIT5 Products UNIT6 Cloning UNIT7 Getting along with each other UNIT8 Fitness and health UNIT9 Modern bank UNIT10 Personal Motivation UNIT11 New science UNIT12 Child education UNIT13 One earth UNIT14 Christmas seasons UNIT15 On vacation Glossary · · · · · · (收起)