unit21 Human Biology-- warm-up

(共13张PPT)
Warm-up
Key words: The Body
ankle, brain, eye, heart, kidneys, bone, knee, liver, lungs, skin, stomach, wrist, fingers
Listen and guess which parts of the body are being described. Which words helped you decide
brain
Two sides and is like computer that processes information
heart
Beats 100,000 times a day, pumps blood into the lungs
lungs
Absorb oxygen
Either side of the heart
Get rid of carbon dioxide
eye
Delicate organ.
Work like a camera.
Light enters and reaches special light sensitive cells.
liver
Break down the food.
The size of a closed hand.
Tapescript
This organ ______ about a kilo and ____________ two sides. It is like a super computer that ________ information.
weighs
is made up of
processes
2. This organ ____ 100,000 times a day. With each beat it moves eighty milliliters of blood –that is 8,000 liters of blood per day. It ______ blood into the lungs, where it receives ______, before being pumped around the rest of the body.
beats
pumps
oxygen
3. These organs _______ oxygen and ________ carbon dioxide. They are _______ on the either side of the heart. They receive air as a result of ________ and when blood passes through, they give it oxygen.
absorbs
get rid of
situated
breathing
4. This is a very delicate organ. It is moved by six _______ and _________ varies different layers. Light enters and reaches and special light sensitive cells. This works like a ______ and finally sends signals to the brain.
muscles
consists of
camera
5. This is about the size of a __________. Its job is to break down the food we eat so that we have energy and can be healthy and strong.
closed hand