Unit 1 Students'Life 1
Communicative Samples 1
Paragraph Reading A:Adult Education 2
Paragraph Reading B:How to Judge a Person 5
Grammar Focus:General Introduction概说 7
Unit 2 Environment ＆ Conservation 11
Communicative Samples 11
Paragraph Reading A:Water Pollution 12
Paragraph Reading B:Nature Conservation 15
Grammar Focus:Nouns名词 17
Unit 3 Web 21
Communicative Samples 21
Paragraph Reading A:Welcome to the Web! 22
Paragraph Reading B:Ready,Steady,Go! 25
Grammar Focus:Articles冠词 27
Unit 4 Climate ＆ Weather 32
Communicative Samples 32
Paragraph Reading A:How to Measure Distance in California 33
Paragraph Reading B:Hurricane 36
Grammar Focus:Pronouns代词（一） 38
Unit 5 Culture 42
Communicative Samples 42
Paragraph Reading A:Father's Day 43
Paragraph Reading B:Holidays ＆ Vacation 46
Grammar Focus:Pronoun代词（二） 48
Unit 6 Sports ＆ Games 52
Communicative Samples 52
Paragraph Reading A:Jesse Owens 53
Paragraph Reading B:Sports 55
Grammar Focus:Number数词 58
Unit 7 People's Life 62
Communicative Samples 62
Paragraph Reading A:Fire Disaster 63
Paragraph Reading B:Hawaii 65
Grammar Focus:Preposition介词 68
Unit 8 Studying Online 72
Communicative Samples 72
Paragraph Reading A:Internet 73
Paragraph Reading B:How to Read 75
Grammar Focus:Adjective ＆ Adverb形容词和副词（一） 78
Unit 9 Traffic ＆ Transmission 82
Communicative Samples 82
Paragraph Reading A:The Trans-Amazonian Highway 83
Paragraph Reading B:Asking for a Way 86
Grammar Focus:Adjective ＆ Adverb形容词和副词（二） 88
Unit 10 Letters 92
Communicative Samples 92
Paragraph Reading A:Pen Friends 93
Paragraph Reading B:Fun at the Supermarket 96
Grammar Focus:Tense时态（一） 98
Unit 11 Energy Resources 102
Communicative Samples 102
Paragraph Reading A:Recycling Waste 103
Paragraph Reading B:How to Solve the Energy Shortage 106
Grammar Focus:Tense时态（二） 108
Unit 12 How to Learn 112
Communicative Samples 112
Paragraph Reading A:Vast,West or Vest 113
Paragraph Reading B:Marking on Books 116
Grammar Focus:Tense时态（三） 118
Glossary 122
Model Test 1 136
Model Test 2 146
Answer Keys 155