CONTENTS 1
UNIT ONE 1
UNIT TWO 8
UNIT THREE 17
UNIT FOUR 27
REVIEW Ⅰ(Unit1——4) 40
UNIT FIVE 45
UNIT SIX 55
UNIT SEVEN 65
UNIT EIGHT 77
REVIEW Ⅱ(Unit 5——8) 88
UNIT NINE 94
UNIT TEN 104
UNIT ELEVEN 115
UNIT TWELVE 127
REVIEW Ⅲ(Unit 9——12) 137
UNIT THIRTEEN 139
UNIT FOURTEEN 148
UNIT FIFTEEN 156
UNIT SIXTEEN 164
GENERAL REVIEW 172
附录Ⅰ 缩写符号说明 180
附录Ⅱ 不规则动词表 181
附录Ⅲ 课堂用语 183
附录Ⅳ 短语和词组 189
附录Ⅴ 专有名词 191
附录Ⅵ 总词汇表 192