Unit 1 Students'Life 1
Communicative Samples 1
Paragraph Reading A:On Applying for a College 2
Paragraph ReadingB:Examination 5
Grammar Focus:Form Words实词 7
Unit 2 Environment ＆ Conservation 13
Communicative Samples 13
Paragraph Reading A:Pollution 15
Paragraph Reading B:Global Warming 17
Grammar Focus:Notional Words虚词 20
Unit 3 Web 24
Communicative Samples 24
Paragraph Reading A:The Internet 25
Paragraph Reading B:Americans'Use of the Internet 28
Grammar Focus:Tenses时态（一） 30
Unit 4 Climate ＆ Weather 34
Communicative Samples 34
Paragraph Reading A:Predicting Weather 35
Paragraph Reading B:“Road Rage”Behavior 38
Grammar Focus:Tenses时态（二） 40
Unit 5 Culture 45
Communicative Samples 45
Paragraph Reading A:The Cultures 46
Paragraph Reading B:Manners 49
Grammar Focus:Tenses时态（三） 51
Unit 6 Sports ＆ Games 56
Communicative Samples 56
Paragraph Reading A:Sports and Games 57
Paragraph Reading B:The Sporting Spirit 60
Grammar Focus:Tenses时态（四） 62
Unit 7 People's Life 66
Communicative Samples 66
Paragraph Reading A:Making Good Use of Time 67
Paragraph Reading B:Surviving in a Forest 70
Grammar Focus:Passive Voice被动语态 72
Unit 8 Studying Online 79
Communicative Samples 79
Paragraph Reading A:The Distance Learning 81
Paragraph Reading B:The E-mail 83
Grammar Focus:Infinitive动词不定式 86
Unit 9 Traffic ＆ Transmission 92
Communicative Samples 92
Paragraph Reading A:Traffic Safety 93
Paragraph Reading B:The Public Transport 96
Grammar Focus:Gerund动名词 98
Unit 10 Letters 104
Communicative Samples 104
Paragraph Reading A:The President's Letters 105
Paragraph Reading B:Applicants and Employers 108
Grammar Focus:Participle分词 110
Unit 11 Energy Resources 116
Communicative Samples 116
Paragraph Reading A:Natual Resources 118
Paragraph Reading B:Electricity 120
Grammar Focus:Emphasis and Inversion强调与倒装 123
Unit 12 How to Learn 128
Communicative Samples 128
Paragraph Reading A:How to Read 129
Paragraph Reading B:Learning a Foreign Language 132
Grammar Focus:Tag Question反意疑问句 134
Glossary 140
Model Test 1 155
Model Test 2 164
Answer Keys 173