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skills
introduction
unit 1: trends in living
¡¡chapter 1 a cultural difference: being on time
in some cultures, it is important to be on time. but¡°on time¡±can
have different meanings in different cultures.
¡¡chapter 2 changing lifestyles and new eating habits
the way you live affects the way you eat. sometimes when people
change their lifestyles, they change their eating habits, too.
¡¡chapter 3 dreams: making them work for us
do you have bad dreams£¿ nightmares£¿ you can learn to change
bad dreams into good dreams, and feel better, too.
unit 2: issues in society
¡¡chapter 4 language: is it always spoken£¿
babies learn to communicate in different ways. for babies who are
hearing-impaired, there are other ways to ¡°speak.¡±
¡¡chapter 5 loneliness: how can we overcome it£¿
everyone feels lonely sometimes. but for some people, loneliness
can last a long time. this can be very dangerous to their health.
¡¡chapter 6 the importance of grandmothers
grandmothers are usually a very happy part of their grandchil-
dren's lives. they are also very important for other reasons, too.

unit 3: justice and crime
¡¡chapter 7 innocent until proven guilty: the criminal court system
the american court system protects the rights of the people. how
does the american court system work£¿
¡¡chapter 8 the reliability of eyewitnesses
an eyewitness to a crime can be very important in solving that
crime. but sometimes even an eyewitness can make a mistake.
¡¡chapter 9 solving crime with modern technology
today, there are many improvements in crime technology. this
modern technology helps solve crimes faster and better.
unit 4: science and history
¡¡chapter 10 ancient artifacts and ancient air
archeologists make important discoveries about people who lived
a long time ago. this knowledge of the past can help us in the
future.
¡¡chapter 11 how lunar eclipses have changed history
people did not always understand how lunar eclipses happen.
because of this, superstitions about lunar eclipses had some impor-
tant effects on history.
¡¡chapter 12 mars: our neighbor in space
there are some surprising similarities between the earth and mars.
future missions to mars may help us answer some interesting
questions about our own planet, too.
word list