前言
Unit 11 Scientific achievements
作业1 Period 1 Warming up,listen-ing and speaking
作业2 Period 2 Reading
作业3 Period 3 Grammar
��业4 Period 4 Integratin skills
Unit 12 Fact and fantasy
作业5 Period 1 Warming up,listen-ing and speaking
作业6 Period 2 Reading
作业7 Period 3 Grammar
作业8 Period 4 Integratin skills
Unit 13 The water planet
作业9 Period 1 Warming up,listen-ing and speaking
作业10 Period 2 Reading
作业11 Period 3 Grammar
作业12 Period 4 Integratin skills
Unit 14 Freedom fighters
作业13 Period 1 Warming up,listen-ing and speaking
作业14 Period 2 Reading
作业15 Period 3 Grammar
作业16 Period 4 Integratin skills
Unit 15 Desstinations
作业17 Period 1 Warming up,listen-ing and speaking
作业18 Period 2 Reading
作业19 Period 3 Grammar
作业20 Period 4 Integratin skills
Unit 16 The United States of America
作业21 Period 1 Warming up,listen-ing and speaking
作业22 Period 2 Reading
作业23 Period 3 Grammar
作业24 Period 4 Integratin skills
Unit 17 Disabilities
作业25 Period 1 Warming up,listen-ing and speaking
作业26 Period 2 Reading
作业27 Period 3 Grammar
作业28 Period 4 Integratin skills
Unit 18 Inventions
作业29 Period 1 Warming up,listen-ing and speaking
作业30 Period 2 Reading
作业31 Period 3 Grammar
作业32 Period 4 Integratin skills
Unit 19 The Merchant of Venice
作业33 Period 1 Warming up,listen-ing and speaking
作业34 Period 2 Reading
作业35 Period 3 Grammar
作业36 Period 4 Integratin skills
Unit 20 Archaeology
作业37 Period 1 Warming up,listen-ing and speaking
作业38 Period 2 Reading
作业39 Period 3 Grammar
作业40 Period 4 Integratin skills
参考答案