选修模块7 Unit 21 Human Biology Warm up

课件12张PPT。Warm-upKey words: The Bodyankle, 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?brainheartBeats 100,000 times a day, pumps blood into the lungslungsAbsorb oxygen Either side of the heartGet rid of carbon dioxideeyeDelicate organ.Work like a camera. Light enters and reaches special light sensitive cells.liverBreak down the food. The size of a closed hand.TapescriptThis organ ______ about a kilo and ____________ two sides. It is like a super computer that ________ information.weighsis 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 situatedbreathing 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 camera5. 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