英语 第4册PDF电子书下载

Lesson 54 1

Text Nuclear Physics and Agriculture 1

Lesson 55 16

Text Salvation 16

Lesson 56 31

Text Graveyard of the Atlantic 31

Lesson 57 46

Text A Man Who Had No Eyes 46

Lesson 58 62

Text What Use Is Philosophy? 62

Lesson 59 76

Text Your Speech Is Changing 76

Text The Space Age 94

Lesson 60 94

Lesson 61 112

Text Assault on a Home in Brooklyn 112

Lesson 62 132

Text Fact Catches up with Fiction 132

Lesson 63 148

Text Education for a Difficult World 148

Lesson 64 168

Text In Another Country 168

Lesson 65 188

Text The Country and the People 188

Lesson 66 209

Text The Declaration of Independence 209

Lesson 67 230

Revision Exercises 230