Lesson One 1
New Words and Expressions 1
Text:English 2
Notes to the Text 3
参考译文：英语 5
Word Study:meet,result 6
Grammar：英语语法概论 8
Exercises 10
Lesson Two 12
New Words and Expressions 12
Text:A Circuit and Voltage 13
Notes to the Text 14
参考译文：电路和电压 15
Word Study:show,turn 16
Grammar：五种句型 17
Exercises 18
Lesson Three 20
New Words and Expressions 20
Text:Force,Work and Power 21
Notes to the Text 22
参考译文：力、功和功率 23
Word Study:take,equal 24
Grammar：短语动词 25
Exercises 29
Lesson Four 31
New Words and Expressions 31
Text:Three Laws of Newton 32
Notes to the Text 33
参考译文：牛顿三定律 34
Word Study:or,act,proportional 35
Grammar：六种时态 37
Exercises 39
Lesson Five 42
New Words and Expressions 42
Text:The Three States of Matter 43
Notes to the Text 44
参考译文：物质的三态 45
Word Study:change,get 46
Grammar：形容词和副词的级 48
Exercises 50
Lesson Six 53
New Words and Expressions 53
Text:Conductors,Insulators and Semiconductors 54
Notes to the Text 55
参考译文：导体、绝缘体和半导体 56
Word Study:allow,carry,go 57
Grammar：动词不定式 60
Exercises 65
Lesson Seven 68
New Words and Expressions 68
Text:Magnets 69
Notes to the Text 71
参考译文：磁铁 72
Word Study:hold,either,believe 73
Grammar：分词 75
Exercises 79
Lesson Eight 82
New Words and Expressions 82
Text:Science 83
Notes to the Text 84
参考译文：科学 86
Word Study:come,do 87
Grammar：动名词 89
Exercises 93
Lesson Nine 96
New Words and Expressions 96
Text:Energy 97
Notes to the Text 98
参考译文：能（量） 100
Word Study:fall,happen,apply 101
Grammar：被动语态 103
Exercises 107
Lesson Ten 111
New Words and Expressions 111
Text:Water 112
Notes to the Text 114
参考译文：水 116
Word Study:make,bring 116
Grammar：名词从句和形容词从句 119
Exercises 124
Lesson Eleven 129
New Words and Expressions 129
Text:Radar 130
Notes to the Text 131
参考译文：雷达 133
Wofd Study: send,find 133
Grammar：状语从句 136
Exercises 144
Lesson Twelve 148
New Words and Expressions 148
Text:Rocket 149
Notes to the Text 151
参考译文：火箭 152
Word Study:move,cause 152
Grammar：强调 156
Exercises 158
Lesson Thirteen 160
New Words and Expressions 160
Text:Computers 161
Notes to the Text 163
参考译文：计算机 163
Word Study:work our,give out 164
Grammar：倒装 166
Exercises 171
Lesson Fourteen 175
New Words and Expressions 175
Text:Lasers 177
Notes to the Text 178
参考译文：激光 179
Word Study:produce,spread 179
Grammar：省略 182
Exercises 186
练习参考答案 190
第一课 190
第二课 191
第三课 191
第四课 192
第五课 193
第六课 194
第七课 195
第八课 196
第九课 197
第十课 199
第十一课 201
第十二课 202
第十三课 203
第十四课 205
总词汇表 207