Unit Eleven Modern Cars 148
Warming-up Identifying Cars 148
Text Modern Cars 148
Grammar Passive Voice（Ⅰ） 150
Enjoy Yourself Is Your Ear Infected? 154
Practical English Filling English Forms 155
Unit Twelve Specifications for Vehicles Operating 157
Warming-up Certificates 157
Text Safe Specifications for Vehicles Operating on Roads 157
Grammar Passive Voice（Ⅱ） 160
Enjoy Yourself Road Signs 164
Practical English Writing Notes（Ⅰ） 166
Unit Thirteen Computers 168
Warming-up Learning to Use a Computer 168
Text Computers 168
Grammar Passive Voice（Ⅲ） 170
Enjoy Yourself The longest and the Shortest 174
Practical English Writing Notes（Ⅱ） 174
Unit Fourteen E-mails 176
Warming-up Acronyms and Signs in E-mails 176
Text E-tiquette 176
Grammar Emphatic Sentence 178
Enjoy Yourself God Knows 183
Practical English Writing E-mails 184
Unit Fifteen A Business letter 186
Warming-up Having a Dinner 186
Text A Business Letter 187
Grammar Non-finitive Verbs（Ⅰ）：Infinitive 189
Enjoy Yourself A Cold Welcome 194
Practical English Writing Business Letters 194
Revision Ⅲ 197
Unit Sixteen Electronics 208
Warming-up To Know Electronic Components 208
Text Electronics 208
Grammar Non-finitive Verbs（Ⅱ）：Gerund 211
Enjoy Yourself Running Faster than You 214
Practical English Writing Application Letters 215
Unit Seventeen Digital Camera 218
Warming-up Talking about Digital Camera 218
Text Digital Camera 219
Grammar Non-finitive Verbs（Ⅲ）：Participles 220
Enjoy Yourself Pancakes 224
Practical English Advertisements 224
Unit Eighteen Colour TelevisionV 226
Warming-up Get to Know Colour TV 226
Text Colour Television 227
Grammar Noun Clause 229
Enjoy Yourself A Hundred 233
Practical English Sending a Fax in English 234
Unit Nineteen Multimedia 236
Warming-up Multimedia Devices 236
Text Multimedia 237
Grammar Attributive Clause 240
Enjoy Yourself "Yes"and"No" 243
Practical English Writing Business Cards 244
Unit Twenty Numerical Control 246
Warming-up NC Machines 246
Text Advantages of NC 247
Grammar Adverbial Clause 249
Enjoy Yourself Sending for the Fire Brigade 254
Practical English Signs 254
Revision Ⅳ 256
Appendix Ⅲ Special Terms 265
Appendix Ⅳ Translation 267