科技英语听力训练PDF电子书下载

1.What Is Satellite？ 1

2.The Pacific Ocean 5

3.The Glow-Worm 9

4.Housing Problems in 2000 A.D 14

5.Plants and their Life 18

6.The Silkworm 22

7.The Size of the Universe 27

8.The Sun’s Family 32

9.Mechanised Farming 37

10.Marie Curie 42

11.Why Does a Space Rocket Go So Fast？ 47

12.The Chemistry of the Earth 52

13.A Nuclear War 57

14.How Does Radio Work？ 62

15.Are There Men on Other Worlds？ 67

16.Similarities between Man and the Chimpanzee 72

17.Color Blindness 77

18.Space Requirements 82

19.Electric Motors 87

20.What Causes Waves？ 92

21.Atomic Bombs 97

22.Sweet Dreams 102

23.Cat Naps 107

24.Comets 112

25.Brain Chemistry 118

26.Cryptography 123

27.Lightning 129

28.Why Vitamins？ 135

29.Edison the Inventor 141

30.Sea Harvest 146

31.What about Ulcers？ 152

32.Plastic Surgery 160