中学生物英语读本PDF电子书下载

Unit 1 The Basic Characteristics of Living Things 1

Lesson 1 Cells Are the Basic Units of Living Things 1

Lesson 2 All Living Organisms Have Metabolism 4

Lesson 3 Living Things Respond to Stimuli 6

Lesson 4 Growth and Development 8

Lesson 5 Reproduce 10

Lesson 6 Heredity and Variation 12

Lesson 7 Living Things Adapt to and Influence Environment 14

Unit 2 Chemistry of Life 16

Lesson 1 Water is Essential to Life 17

Lesson 2 Inorganic Salts 20

Lesson 3 Carbohydrates Include Sugars,Starches,and Cellulose 23

Lesson 4 Lipids 28

Lesson 5 Amino Acids and Polypeptide Chains 33

Lesson 6 Proteins 36

Lesson 7 Nucleic Acids:DNA and RNA 39

Unit 3 Cells 43

Lesson 1 The Cell Concept 43

Lesson 2 Prokaryotic and Eukaryotic Cells 46

Lesson 3 The Structures of Eukaryotic Cells 50

Lesson 4 Structures of Membrane 54

Lesson 5 The Functions of Cell Membrane(1) 58

Lesson 6 The Functions of Cell Membrane(2) 62

Lesson 7 The Structures and Functions of Organelles(1)-Mitochondris and Plastids 67

Lesson 8 The Structures and Functions of Organelles(2) 71

Lesson 9 Nucleus 75

Unit 4 The Tissues 80

Lesson 1 Epithelial Tissues 80

Lesson 2 Connective Tissues 83

Lesson 3 Muscle Tissue 87

Lesson 4 Nervous Tissue 90

Unit 5 The Organs 93

Lesson 1 The Organs-Skin 93

Lesson 1 The Mobile System(1)-Skeleton 97

Unit 6 Organ Systems in Human 97

Lesson 2 The Mobile System(2)-Skeletal Muscle 101

Lesson 3 Circulatory System(1)-Blood 105

Lesson 4 Circulatory System(2)-Blood Vessels 110

Lesson 5 Circulatory System(3)-Heart 113

Lesson 6 Digestive System 116

Lesson 7 Respiratory System 119

Lesson 8 The Human Excretory System 121

Unit 7 Organ Systems in Human(2) 126

Lesson 1 Endocrine System 126

Lesson 2 Nervous System(1) 128

Lesson 3 Nervous Systems(2) 132

Lesson 4 Nervous Systems(3)-Sense Organs 134

Lesson 5 Reproductive System 138

Unit 8 Metabolism 141

Lesson 1 ATP 141

Lesson 2 Enzymes 144

Lesson 3 Roots Absorb Water 149

Lesson 4 Mineral Nutrition 152

Lesson 5 Photosynthesis(1) 155

Lesson 6 Photosynthesis(2) 159

Lesson 7 Cellular Respiration(1)-Aerobeic Respiration 162

Lesson 8 Cellular Respiration(2)-Anaerobic Respiration 165

Unit 9 Reproduction Growth,and Development 169

Lesson 1 Reproduction 169

Lesson 2 Mitosis and Cell Division(1) 173

Lesson 3 Mitosis and Cell Division(2) 178

Lesson 4 Meiosis(1) 182

Lesson 5 Meiosis(2) 186

Lesson 6 The Development of Plant 188

Lesson 7 The Development of Animal Embryo 191

Unit 10 Heredity(1) 194

Lesson 1 DNA is Main Genetic material 194

Lesson 2 The Structure of DNA 196

Lesson 3 DNA Replicaation 200

Lesson 4 The Gene Theory 202

Lesson 5 Transcription 205

Lesson 6 Translation 210

Lesson 7 Mendel and His Pea 213

Lesson 8 The Law of Segregation(1) 216

Lesson 9 The Law of Segregation(2) 220

Unnit 11 Heredity(2) 225

Lesson 1 The Principle of Independent Assortment 225

Lesson 2 Autosomal Linkage 230

Lesson 3 Sex Determination 232

Lesson 4 Sex-Linkage Inheritance 236

Lesson 1 Natural Selection 241

Unit 12 The Evolution 241

Unit 13 Organisms and Their Environment 246

Lesson 1 Ecology 246

Lesson 2 Population 250

Lesson 3 Community 254

Lesson 4 The Relationships between Organisms 257

Lesson 5 Food Chain and Food Web 260

Lesson 6 Ecosystem 267

Appendix I Keys 271

Appendix II Vocabulary 284

Appendix III The Reference Books 307