走向英语世界 阅读与基础语法PDF电子书下载

UNIT ONE:THE PRESENT TENSE 1

chapter 1 Litter Is a Problem in Our Cities 2

chapter 2 People Work at Many Different Jobs 8

chapter 3 Handicapped People Do Useful Work 22

chapter 4 Hallowe'en Is a Holiday for Children 27

UNIT TWO:THE PRESENT CONTINUOUS TENSE 32

chapter 5 The Kites Are Flying High 33

chapter 6 Pollution Is Spoiling the Air You Breathe! 40

UNIT THREE:THE PRESENT PERFECT TENSES 47

chapter 7 This Woman Has Lost Her Job 48

chapter 8 It's Diffcult to Say Good-bye 54

chapter 9 Are Buses as Easy to Use as Cars? 60

UNIT FOUR:THE PAST TENSE 66

chapter 10 Lightning Struck the City Last Night 67

chapter 11 Rescue Workers Saved Four People 73

chapter 12 Dinosaurs Lived Many Years Ago 80

chapter13 Dry Land Farming:An Art and a Science 87

UNIT FIVE:THE PAST HABITUAL TENSES 92

chapter 14 Transportation Used to Be Much Slower 95

chapter 15 Thanksgiving on the Farm 101

UNIT SIX:THE PAST CONTINUOUS TENSE 106

chapter 16 When the Wall Fell In 107

UNIT SEVEN:THE PAST PERFECT TENSES 113

chapter 17 Nobody Had Believed It Was Possible 114

chapter 18 Husky Had Been Very Healthy 123

chapter 19 Luckily,I Had Been Wearing My Seatbelt 129

UNIT EIGHT:THE FUTURE TENSES 136

chapter 20 The Car of the Future 137

chapter 21 Helicopters to the Rescue! 145

UNIT NINE:THE FUTURE CONTINUOUS TENSE 154

chapter 22 When the Tornado Hits 155

UNIT TEN:THE FUTURE PERFECT TENSES 162

chapter 23 Pit Stop at the Race Track 163

chapter 24 Run for the Money 170

chapter 25 Too Little,Too Late 176