Unit 1 Warming Up (p
NG Understanding Short Conversations (p
C Understanding a Long Conversation (p
C Understanding a Passage (p
B Understanding a Movie Dialog (p
upset 2
sick 3
harmless 5
break 6
replaced 7
memories 8
natural 9
birthday 10
appreciate Listening and Speaking (p
sit quietly and listen to 2
a blank stare 3
put it a different way 4
speak up in class 5
in turn, a great deal of Homework Supplementary Listening Task 1 (p
B Task 2 (p
C Task 3 (p
15) 1 the age, size and future 2
Seventy years ago 3
increase with distance 4
Late last month 5
A light year 6
distances in space