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Unit 2 READING 2
C oral reefs are one of the most
fascinating things in the world.
Coral reefs live in shallow and clear
waters and have many different sizes
and shapes. Some reefs look like
large sponges or brains, while others
resemble cabbages. Their colors are
so beautiful that people are amazed to see them.
As coral reefs grow, they provide a habitat for thousands of creatures. They
include many kinds of fish, mollusks, and crabs, which serve as food for
humans. Coral reefs also play a role as a natural barrier when big ocean
waves crash against coastal areas. The force of the waves becomes weaker
and doesn’t cause serious damage on the areas. Coral reefs are even used as
a source of medicine. People made anti-viral and anti-cancer drugs using
sponges in Caribbean coral reefs.
Coral reefs are very valuable natural resources for us. However, coral reefs
are suffering from pollution and overfishing these days. Eighty percent of
the reefs in Southeast Asia are in danger. So, it becomes important to
protect them from human harm.
English Usage
• provide [supply, furnish, present] something for someone
The charity provided clothes and food for poor people.
• protect someone from something
You should know how to protect yourself from bad people.
108 Chapter 5 Science
C oral reefs are one of the most
fascinating things in the world.
Coral reefs live in shallow and clear
waters and have many different sizes
and shapes. Some reefs look like
large sponges or brains, while others
resemble cabbages. Their colors are
so beautiful that people are amazed to see them.
As coral reefs grow, they provide a habitat for thousands of creatures. They
include many kinds of fish, mollusks, and crabs, which serve as food for
humans. Coral reefs also play a role as a natural barrier when big ocean
waves crash against coastal areas. The force of the waves becomes weaker
and doesn’t cause serious damage on the areas. Coral reefs are even used as
a source of medicine. People made anti-viral and anti-cancer drugs using
sponges in Caribbean coral reefs.
Coral reefs are very valuable natural resources for us. However, coral reefs
are suffering from pollution and overfishing these days. Eighty percent of
the reefs in Southeast Asia are in danger. So, it becomes important to
protect them from human harm.
English Usage
• provide [supply, furnish, present] something for someone
The charity provided clothes and food for poor people.
• protect someone from something
You should know how to protect yourself from bad people.
108 Chapter 5 Science
