中学英语拓展阅读丛书 自然科学系列 第1册PDF电子书下载

1 A Using Energy to Ride a Bike 1

1 B Fixing a Flat 3

2 A Animals of the Forests 5

2 B A Listening Walk in the Forest 7

3 A The Constellations 9

3 B A Visit to a Planetarium 11

4 A The Need for Plants 13

4 B Grow Your Own Vegetables 15

5 A What Is a Veterinarian? 17

5 B Are Dogs Getting Healthier? 19

6 A The Features of Earth's Surface 21

6 B Down the Mississippi River 23

7 A Simple Machines 25

7 B A Simple Solution 27

8 A The Scientific Discoveries of Benjamin Franklin 29

8 B How Do Kites Fly? 31

9 A The Truth About Sharks 33

9 B The Crittercam 35

10 A Types of Clouds 37

10 B Meteorologists Predict the Weather 39

11 A Fruits and Vegetables:A Key to Good Health 41

11 B Exotic Fruits 43

12 A Crossing the Land with Steam Power 45

12 B Robert Fulton and the Steamboat 47

13 A Seasons Around the World 49

13 B Staying Warm in Winter 51

14 A What Is a Mammal? 53

14 B Mammals with Pouches 55

15 A How to Organize a Great Science Fair Project 57

15 B A Tasteful Science Experiment 59

16 A Rocks and Minerals 61

16 B The Hope Diamond 63

17 A Water Is Needed for Life 65

17 B How Cacti Survive with Little Water 67

18 A Flowering and Nonflowering Plants 69

18 B The Honeybee and Pollination 71

19 A Waste and Recycling 73

19 B Our Class Recycling Project 75

20 A Elijah McCoy,Inventor 77

20 B Why Do We Say That? 79

21 A The Push and Pull of Magnets 81

21 B Making Magnets 83

22 A The Senses 85

22 B A Fish Out of Water 87

23 A Telescopes and Microscopes 89

23 B An Important Scientist 91

24 A The Life Cycle of a Tree 93

24 B Growing Applesauce 95

25 A How Animals Defend Themselves 97

25 B Animals Keeping Clean 99

附录 101

Answer Key 101

Reading Rate 103

Comprehension Score 104

Comprehension Skills Profile 105