Contents（目录）单元教学目的和要求（Teaching aims and demands） 1
Teaching notes of each unit（分单元教学建议） 13
Unit Title Grammar Daily Expressions in PageCommunication 13
15 Healthy eating Making suggestions Seeing the doctor 13
Giving advice 13
16 Fire! Past Indefinite Prohibition warnings 17
Past Continuous 17
Passive Voice 22
17 Nature Present Continuous Intentions purposes 22
18 The necklace Indirect Speech(3) Lost found;talking 27
about past experiences 27
19 Jobs Attributive Clause(4)Judgements opinions 32
20 Mainly revision 37
21 Karl Marx Past Perfect Past Talking about language 41
Indefinite study22 Britain and Ireland Identifying people 45
23 Rescuing the temple Attributive Clause(5)Making suggestions 49
24 The science of farming Indirect Speech Talking about 54
the weather25 At the conference Modal Verbs Making telephone calls 59
26 Mainly revision 64
Unit Text Page 64
15 What is a healthy diet? 68
16 Sao Paulo fire 71
17 Milu deer return to China 74
18 The necklace 80
19 The secret is out! 87
20 Paper 94
21 How Marx learned foreign languages 97
22 Britain and Ireland 105
23 The rescue of Abu Simbel 113
24 A farming pioneer 117
25 At the conference 122
26 An interesting life 127
附录（Appendix） 131
阅读课文译文（Translations of reading texts） 131
Key to exercises in the Workbook（练习册中部分练习的答案） 143