The Magic Bus INSIDE THE HUMAN BODY

The Magic Bus INSIDE THE HUMAN BODY

It all began when Ms Frizzle showed our class a filmstrip about the human body.We knew trouble was about to start,because we knew Ms Frizzle was the strangest teacher in the school.

A filmstrip is only the beginning, you know.I bet it's a book about this too! Once recess?

The very next day, The Friz made us do an experiment on our own bodies. Oh, weird!

Then she announced that we were going on a class trip to the science museum.We were going to see an exhibit about how our bodies get energy from the food we eat.

Your cells need energy to help you grow, move, talk, think, and play.

Just being in Ms Frizzle's class takes all my energy.

The trip started out like any other trip. We rode to the museum in the old school bus.Along the way, we stopped at a park for lunch.

Left over fish fingers?! Ick!

I'll treat you these terrific fish fingers for that horrible peanut butter and banana sandwich.

Forget it! Take a look at her shoes. Please! I'm eating!

When it was time to go, everyone got back on the bus - everyone but Arnold.He was still at the picnic table, daydreaming and eating a bag of Cheesie-Weesies.

When you eat, your body digest's the food so your cells can use it to make energy.

"Hurry up, Arnold!" called Ms Frizzle.She reached for the ignition key, but instead she pushed a strange little button nearby.Arnold's really out to lunch.

At once, we started shrinking and spinning through the air.

From inside, we couldn't see what was happening.All we knew was that we landed suddenly...Gulp! Hey, where's the bus?and then we were going down a dark tunnel.

We had no idea where we were. But, as usual, Ms Frizzle knew.She said we were inside a human body,going down the oesophagus - the tube that leads from the throat to the stomach.Most of us were too upset about leaving Arnold behind to pay much attention.

Where's Arnold? He got left!

That's what happens when you eat junk food!

I thought we were going to the museum.

There's been a slight change of plans ... we're being digested instead.

"We are now passing into the stomach," said Ms Frizzle. It wasn't exactly quiet in there.

The walls of the stomach moved in and out, churning and mashing the food into a thick liquid.

The bus was turning round and round, and digestive juice splashed the windows.Now we knew how it felt to be a hamburger!

Roll up your windows, children. Yuck!

Ms Frizzle drove to the bottom of the stomach.

"We'll drive through this opening to the small intestine," she said.

In the small intestine, food is broken down into molecules tiny Enough for the body Cells to use.

I want to go home! But this is educational. Does education have to be this messy?

I don't feel so good. Maybe it was something I ate. Poor Kid!

The small Intestine was a coiled-up hollow tube.

The inner walls of the tube were covered with tiny "fingers" called villi.

"In the villi are tiny blood vessels.

Food molecules are taken into these blood vessels," said Ms Frizzle.

"Once the food is in the blood, it can travel all over the body."

We felt ourselves getting even smaller,and Ms Frizzle started driving into one of the villi.

She was going straight into a blood vessel!

Class, the bus is following the path of the food molecules in to the blood.I wish Arnold were here to see this. Yes! It's so gross!

You mean this body thinks we're food? That's better than being waste.

Now we were in the blood, but it did not look red.

"Blood is not just a red liquid," explained Ms Frizzle.

"Blood is made of cells, floating in a clear fluid."

"Those cells look like red rubber saucers!" someone called out.

"Those are red blood cells," Ms Frizzle said.

"Red blood cells carry oxygen from the lungs to all the cells of the body."Did you see that?

Here and there a white blood cell was busy destroying disease germs.

White blood cells are like soldiers protecting your body from enemies said Ms Frizzle.

The white blood cell ate the germ. That's disgusting!

Looking back, we saw a white blood cell chasing the bus.

"We'll be safer with the red blood cells, kids," said Ms Frizzle.

She reached for the handle that controlled the bus's doors.

"Don't do it!" we cried, but when did Ms Frizzle ever listen?The doors of the bus flew open.

That white blood cell must think the school bus is a germ.

Well, the bus is pretty dirty.

We were swept out of the bus and into the bloodstream.

"Everybody hitch a ride!" called The Friz.

Each kid grabbed a red blood cell as it went by.

Our last glimpse of the bus was when it went into another blood vessel-with the white blood cell right behind it!

Why can't we just have spelling tests like other kids?

We'll never get out of here now!

These red blood cells have turned dell red - they need more oxygen.

Meanwhile ... Oh my gosh! I'm lost! Don't panic!

The next thing we knew, we had flowed into the heart."Inside the heart are four hollow spaces, called chambers," said Ms F.

Each chamber is a little pump."The two chambers on the right side of the hearttook in used blood from the body and pumped it to the lungs.

Have a heart, Ms Frizzle, get us out of here!

In the lungs, the red cells picked up fresh oxygen.

We get new oxygen from the air each time we breathe in.

We get rid of a waste gas - carbon dioxide - each time we breathe out.

My heart is pounding. Take a deep breath. You'll be ok.

From the lungs, our red blood cells carried us back to the heart.

This time we were on the left side of the heart-the side that pumps fresh blood back to the body again.

"Kids, it looks as if these red blood cells are on their way to the brain," said Ms Frizzle.

Look! When the red blood cells pick up oxygen, they turn bright red.

Class, those brain cells need more oxygen!

We'll never get home unless we find the bus. Maybe we'll find it in the brain.

Which way back to school? Use your brain.

When we reached the brain, we let go of our red blood cells and squeezed out of the blood vessel.It was hard to believe that this wrinkled grey blob was the control centre of the body.

Children, we are walking on the cerebral cortex, the pinkish grey, outer layer of the brain.Without it we couldn't see, hear, Smell, Touch, taste, talk, move, or think!

Ms Frizzle said the brain is made of billions of busy nerve cells.They are constantly sending and receiving messages from the eyes, ears, muscles and other parts of the body.

Do you think we'll be smarter after this! I hope so! Where's the bus?

Let's see ... Ms Frizzle was driving that way to the museum,so are school must be this way. Good thinking.

......
未登录用户只显示文件一半，登录后可以查看全文，并且可以听外教原声朗读。