7、notions

8、its applications in personal computers, digital communications, and factory robots

9、still unimagined technology could produce a similar wave of dramatic changes

10、will have the greatest advantage and produce the most wealth

Unit Five

Warming Up

F NG T

Listening

Understanding Short Conversations

1~5 A D D D B

6~10 C D C A D

Understanding a Long Conversation

1~5 B B A C C