目录

Contents
LESSON 1 How to Study English
LESSON 2 Try,Try Again
LESSON 3 Counting and Measuring in Old Times
General Review 1
LESSON 4 Scientists'Language
Supplementary Reading:A Dialogue
LESSON 5 Something about tie Sun
LESSON 6 Motion of Sound
Supplementary Reading:Velocity of Sound
General Review 2
LESSON 7 Tomorrow Is with Us
LESSON 8 Dreiser's Letter to William Z．Foster
Supplementary Reading:Our Faith in Victory
LESSON 9 A．S．Popov,the Inventor of Radio
General Reuiew 3
Reading Material:The Air
LESSON 10 Experiments in Physics
Supplementary Reading:Energy
LESSON 11 Michael Faraday
LESSON 12 Power—An Important Factor of Productive Force
Supplementary Reading:Learn by Asking
LESSON 13 Galileo and the Lamps
LESSON 14 Electronic Computers
Supplementary Reading: Electronics and Its Applications
General Reuiew 4
Reading Material:Atomic Energy