video m1-2

08 - How do cells fight viruses?

Title

How do cells fight viruses?

Reading Text

Imagine your body is a busy city. The cells are the houses. A virus is a bad guy. It wants to come inside your body to make you sick. When someone sneezes, the virus flies into the air and can go into your nose. It tries to enter a cell. The cell has a membrane, which is like a wall or a door, to protect it. But sometimes the virus tricks the door and gets inside. The cell is smart! It knows an enemy is inside. The cell uses energy to make special weapons to fight the virus. These weapons are called antibodies. Finally, the cell wins, the virus goes away, and you become healthy again.

Activities

Vocabulary

Definitions:

Text: A tiny germ that makes people sick.
Text: The smallest building block of our body.
Text: The power we need to move, run, and play.
Text: When air comes out of your nose suddenly and loudly.
Text: To keep something safe from bad things.
Text: The thin skin around a cell.

Items:

Label: Virus
Answer: A
Label: Cell
Answer: B
Label: Energy
Answer: C
Label: Sneeze
Answer: D
Label: Protect
Answer: E
Label: Membrane
Answer: F

Fill In The Blanks:

Before: When you have a cold, you might
Answer: sneeze
After: a lot.
Before: A
Answer: virus
After: is very small but it can make you sick.
Before: Every person starts as one tiny
Answer: cell
After: .
Before: We eat food to get
Answer: energy
After: for our day.
Before: It is important to eat vegetables to stay
Answer: healthy
After: .