Unit1 In the Library 1
Unit2 Water sports 11
Unit3 Make our world more beautiful! 22
Unit4 Travel 33
Unit5 Have a good time! 41
Unit6 Mainly revision 51
Unit7 A man who never gave up 62
Unit8 Merry Christmas! 72
Unit9 What is it made of? 82
Unit10 When was it built? 90
Unit11 Planting trees 99
Unit12 Mainly revision 112
Unit13 The world s population 122
Unit14 Shopping 133
Unit15 A doctor for animals 146
Unit16 The football match 157
Unit17 The missing mecklace 169
Unit18 Mainly revision 181
一 名词 194
二 冠词 199
三 数词 204
四 代词 209
五 形容词和副词 219
六 动词 227
七 介词 244
八 连接词 250
九 感叹词 254
十 句子成分 255
十一 简单句 260
十二 并列句 268
十三 复合句 272
综合测试(一) 282
综合测试(二) 291