Part II Reading Comprehension (35 minutes)

　　Passage One

　　Questions 21 to 24 are based on the following passage:

　　Automation refers to the introduction of electronic control and automatic operation of pro-ductive machinery. It reduces the human factors, mental and physical, in production, and is de-signed to make possible the manufacture of more goods with fewer workers. The development of automation in American industry has been called the "Second Industrial Revolution".