中学英语拓展阅读丛书 自然科学系列 第6册PDF电子书下载

1 A Rain Forests: Tropical and Temperate 1

1 B Manaus: City in the Amazon Rain Forest 3

2 A The Science of Navigational Sailing 5

2 B The Astrolabe 7

3 A Sculpture on a Grand Scale 9

3 B Elemental Expression 11

4 A The Milky Way 13

4 B Globular Star Clusters 15

5 A Properties of Snow 17

5 B Surviving Blizzards 19

6 A Renewable Energy Sources 21

6 B The Hoover Dam 23

7 A Penicillin: The Wonder Drug 25

7 B Bacteria 27

8 A Urban Sprawl 29

8 B Environmental Architecture 31

9 A Sea Otters 33

9 B Smart Creatures 35

10 A Two Kinds of Forests 37

10 B The Colorful Deaths of Leaves 39

11 A Desert Biomes 41

11 B The Saguaro Cactus 43

12 A The Artist and Light 45

12 B Theatrical Lighting and Design 47

13 A Amphibians 49

13 B Frog Food 51

14 A The Water Cycle 53

14 B Rainmaker: An Experiment 55

15 A Wetlands 57

15 B The Benefits of Wetlands 59

16 A Glaciers 61

16 B The Ice Age 63

17 A Careers in Zoology 65

17 B The Daily Care of Zoo Animals 67

18 A Heredity and Genetics 69

18 B Identical and Fraternal Twins 71

19 A Computers and the Information Revolution 73

19 B Voice Synthesizers 75

20 A Hidden Animals 77

20 B The Misunderstood Chameleon 79

21 A The Life Cycle of a Flowering Plant 81

21 B The Sea Anemone 83

22 A Earthquakes 85

22 B Tectonic Plates and Earthquake Geography 87

23 A Memory and the Brain 89

23 B Left Brain vs.Right Brain 91

24 A Optical Illusions 93

24 B What Is a Mirage? 95

25 A The Dandelion 97

25 B Natural Superstitions 99

附录 101

Answer Key 101

Reading Rate 103

Comprehension Score 104

Comprehension Skills Profile 105