英语阅读教程 第4册PDF电子书下载

Unit 1 Twins,Genes,and Environment 1

Unit 2 You Need More Than a Typewriter 10

Unit 3 The"Dream Mile"Becomes Reality 19

Unit 4 Thekas for Ezier Spelling 29

Unit 5 What Do Americans Think? 38

Unit 6 The Awakening of a Continent 48

Unit 7 The Greatest Treasure Hunt 58

Unit 8 Life on Other Planets 70

Unit 9 Why I Love Wisconsin 79

Unit 10 Across the Sea of Stars 88

Unit 11 The Lost Half-Century 97

Unit 12 The Death of a Lone Oak 106

Unit 13 Our First Congresswoman 115

Unit 14 Fortune Is Fickle 126

Unit 15 Your Voice Gives You Away 135

Unit 16 New Babies Are Smarter Than You Think 146

Unit 17 A Killer Is Born 156

Unit 18 Sons of the Sun 166

Unit 19 English for Americans 176

Unit 20 Fashions in Food 188

Unit 21 Who Decides,Readers or Critics 200

Unit 22 The Etruscan Enigma 211

Unit 23 The Purpose of the Republic 221

Unit 24 The Flu:Sure Nuisance,Possible Disaster 233

Unit 25 The Realistic Idealist 244

Unit 26 A Jazz Tradition 256

Unit 27 Da Vinci's Greatest Triumph 267

Unit 28 Modern Man Is Obsolete 279

Unit 29 Flowering of American Music 291

Unit 30 The Struggle for the World 304

Answer Key 316