内容简介
本书每单元分为四大部分。第一部分是单元学习重点、相关的背景材料、课文的重要语言点和建议开展的口语活动，第二部分是听力的文字材料及参考答案等。
目录
Unit 1 Smoking Habits Listening Exercises Conversation Practice Reading Activity Supplementary Reading Unit 2 Lifestyles Listening Exercises Conversation Practice Reading Activity Supplementary Reading Unit 3 Character Listening Exercises Conversation Practice Reading Activity Supplementary Reading Unit 4 Family Life Listening Exercises Conversation Practice Reading Activity Supplementary Reading Unit 5 Population Listening Exercises Conversation Practice Reading Activity Supplementary Reading Unit 6 Human Needs Listening Exercises Conversation Practice Reading Activity Supplementary Reading Unit 7 Inventions Listening Exercises Conversation Practice Reading A
