Unit 1 Basic Circuit and Its Applications 1
INTENSIVE READING 2
1.1 Basic Circuit Concepts 2
1.2 Capacitance and Inductance 5
WRITING 9
Resume 9
INTENSIVE READING 11
1.3 Voltage Dividers 11
1.4 Filters 14
CAREER SPEAKING 17
Job Interview 17
EXTENSIVE READING 22
Passage 1 Ohm's Law 22
Passage 2 What Is Electricity 23
TRANSLATION 24
Features of Scientific English 24
UNIQUE ENGLISH 26
Brain Teaser 26
Unit 2 Optics 27
INTENSIVE READING 28
2.1 Nature of Light 28
2.2 Reflection and Refraction 32
WRITING 36
Letter of Thanks 36
INTENSIVE READING 37
2.3 Numerical Aperture(NA) 37
2.4 Electromagnetic Radiation 40
CAREER SPEAKING 43
Meeting Guests 43
EXTENSIVE READING 48
Passage 1 What Is Light 48
Passage 2 Convex Lens 49
TRANSLATION 50
Translation of Words and Phrases 50
UNIQUE ENGLISH 52
Incredible Sentences 52
Unit 3 Laser 53
INTENSIVE READING 54
3.1 This Is Laser 54
3.2 APPlications of Laser 58
WRITING 63
Letter of Congratulation 63
INTENSIVE READING 64
3.3 Laser Construction 64
3.4 Popular Misconceptions about Laser 69
CAREER SPEAKING 73
Introducing Enterprises 73
EXTENSIVE READING 78
Passage 1 A Prospectus about Laser Machines 78
Passage 2 Surgery Using Lasers 80
TRANSLATION 82
Translation of Noun Clauses 82
UNIQUE ENGLISH 84
Funny Chinglish 84
Unit 4 Optical Detection 85
INTENSIVE READING 86
4.1 Photoelectric Effect 86
4.2 Photodiode 90
WRITING 94
Letter of Apology 94
INTENSIVE READING 95
4.3 Optical Detection Techniques 95
4.4 CCD 100
CAREER SPEAKING 103
Making Calls 103
EXTENSIVE READING 108
Passage 1 LED Technology 108
Passage 2 Optical Storage Technology 109
TRANSLATION 111
Translation of Attributive Clauses 111
UNIQUE ENGLISH 112
Exotic Sentences 112
Unit 5 Fiber-optic Communication 113
INTENSIVE READING 114
5.1 Brief Introduction of Fiber-optic Communication 114
5.2 Typical Optical Transmitter—LEDs 119
WRITING 123
Memo 123
INTENSIVE READING 124
5.3 Typical Optical Receivers 124
5.4 Comparison with Electrical Transmission 129
CAREER SPEAKING 133
Business Meeting 133
EXTENSIVE READING 138
Passage 1 Optical Fibers 138
Passage 2 Fiber to the Home 139
TRANSLATION 141
Translation of Adverbial Clauses 141
UNIQUE ENGLISH 143
Mother 143
Unit 6 Laser Processing 144
INTENSIVE READING 145
6.1 Laser Cutting 145
6.2 Laser Marking 149
WRITING 154
E-mail 154
INTENSIVE READING 155
6.3 Laser Welding 155
6.4 Laser perforating 160
CAREER SPEAKING 164
After-sales Service 164
EXTENSIVE READING 168
Passage 1 Everyday Use of Laser 168
Passage 2 Laser Safety 170
TRANSLATION 172
How to Translate with Aid of the Internet and Software 172
UNIQUE ENGLISH 174
Funny Proverbs 174
Glossary 175
References 189