2. Main Idea

This paragraph is mainly about

• how people and birds sing
• who uses air to make words
• why people like to sing
• why birds can be so loud

This selection is mainly about

• who takes buses on long trips
• how bus companies got more riders
• what movies are shown on long trips
• how many people ride buses

What is the main idea?

• People are fighting about net fishing.
• Only certain turtles get caught in nets.
• The cost of fish traps is high.
• Some people don't care about turtles.

This selection mainly tells

• about the way to make red.
• how all colors are made from primary colors.
• which colors to mix to make yellow.
• what color is everyone's favorite.

The story mainly tells

• that a cubit measured small things.
• what a digit is.
• what the longest measurement is.
• how the body was used for measuring .

What is the main idea in this selection?

• Most people live in Hong Kong.
• What a junk boat is.
• The difference between a junk boat and a ship.
• Many people own a junk boat.

What is the main idea?

• Sleet sticks to trees and wires.
• Freezing rain is more common than sleet.
• Sleet and freezing rain are not the same.
• Sleet does not stick to trees and wires.

What is the main idea of this paragraph?

• What a black hole is
• How a star lives and dies
• There is strong gravity in space
• How fast light travels