英语 第1册PDF电子书下载

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UNIT ONE 1

LESSON ONE 1

LESSON TWO 9

LESSON THREE 16

LESSON FOUR 23

LESSON FIVE 30

LESSON SIX 37

LESSON SEVEN 44

LESSON EIGHT 51

LESSON NINE 58

LESSON TEN 65

UNIT TWO 72

LESSON ELEVEN 72

LESSON TWELVE 81

LESSON THIRTEEN 90

LESSON FOURTEEN 99

LESSON FIFTEEN 108

LESSON SIXTEEN 116

LESSON SEVENTEEN 124

LESSON EIGHTEEN 133

LESSON NINETEEN 142

LESSON TWENTY 152

LESSON TWENTY-ONE 163

LESSON TWENTY-TWO 174

LESSON TWENTY-THREE 185

LESSON TWENTY-FOUR 194

LESSON TWENTY-FIVE 204

LESSON TWENTY-SIX 214

LESSON TWENTY-SEVEN 223

LESSON TWENTY-EIGHT 233

LESSON TWENTY-NINE 243

LESSON THIRTY 254

VOCABULARY 263

IRREGULAR VERBS 293

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