科技英语听力入门PDF电子书下载

Cassette 1 Side A 1

Unit 1．The Worldwide Reports 1

Lesson 1 Nobel Prize Winners in Physics and Chemistry(1986) 1

Lesson 2 The International Year of the Forest(1985) 3

Lesson 3 Greenhouse Effect in Atmosphere(1987) 5

Exercise 1 Teenage Science Contest in 1989(1989) 7

Unit 2．Computers and Hightech 9

Lesson 4 Computers in the U.S.(1984) 9

Exercise 2 Does A Computer Hold Information Permanently(1985) 14

Cassette 1 Side B 16

Lesson 5 Computer Learning System(1985) 16

Lesson 6 VDTs and their Influence(1985) 19

Lesson 7 Hightech(1986) 21

Exercise 3 New Transportation Systems in Shanghai(1987) 23

Unit 3．Space Technique and Ocean 25

Lesson 8 The U.S.Naval Observatory(1985) 25

Lesson 9 Spacecrafts and Halley's Comet(1986) 28

Lesson 10 The Moon Dust(1985) 30

Exercise 4 Spacelab(1986) 32

Cassette 2 Side A 34

Lesson 11 Ozone(1986) 34

Lesson 12 Spacecraft to Jupiter(1986) 36

Lesson 13 Meteor Shower(1987) 38

Exercise 5 Ocean Storms(1986) 40

Unit 4．Medicine and Environment Protection 42

Lesson 14 How a Common Drug Might Affect our Hearing(1986) 42

Lesson 15 How to Live Longer(1987) 44

Lesson 16 Waste Treatment(1988) 46

Exercise 6 Vitamins Affections(1987) 48

Cassette 2 Side B 50

Unit 5．Some Articles with Faster Reading Speed and/or Various Speaking StylesLesson 17 Making a Circle Square(1989) 50

Exercise 7 Days are Getting Longer(1985) 52

Lesson 18 Computers(1986) 54

Exercise 8 A Failing Grade for American Public Education(1988) 59

Lesson 19 Working at Home(1988) 61

Exercise 9 Working at Ford Company(1987) 63

Lesson 20 Telephone Today(1987) 65

Exercise 10 Greenhouse Building(1989) 69

Answers to Self-taught Training 71

Key to Exercises 75