Page 77 - Score_2
P. 77
Unit 1 READING 2
I t is true that animals cannot talk, but
they do communicate in many
different ways. First, many animals use
smells and sounds to talk to each other.
Many kinds of insects send out
*pheromones when they want to
attract mates. Pheromones are used
by many animals, too, including wolves and deer. And most sea animals,
like the dolphin, use sounds to talk to each other. That’s not all.
Animals also use a number of gestures to communicate. (a) Bees dance to
tell other bees where to find food. (b) Giraffes press their necks together to
show love. (c) And kangaroos give a warning sign of danger by putting their
feet down very hard. (d) Finally, gorillas stick out their tongues when
they get angry.
* pheromone: a chemical made by animals that affects the behavior of others
English Usage
• preparatory It : ‘It’ is often used as a preparatory subject or object for a that-
clause.
It is essential that you visit the art museum.
It surprised her that he was still in bed.
74 Chapter 4 Social Studies
I t is true that animals cannot talk, but
they do communicate in many
different ways. First, many animals use
smells and sounds to talk to each other.
Many kinds of insects send out
*pheromones when they want to
attract mates. Pheromones are used
by many animals, too, including wolves and deer. And most sea animals,
like the dolphin, use sounds to talk to each other. That’s not all.
Animals also use a number of gestures to communicate. (a) Bees dance to
tell other bees where to find food. (b) Giraffes press their necks together to
show love. (c) And kangaroos give a warning sign of danger by putting their
feet down very hard. (d) Finally, gorillas stick out their tongues when
they get angry.
* pheromone: a chemical made by animals that affects the behavior of others
English Usage
• preparatory It : ‘It’ is often used as a preparatory subject or object for a that-
clause.
It is essential that you visit the art museum.
It surprised her that he was still in bed.
74 Chapter 4 Social Studies
