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英语课件. 北师大版 高二 选修 7 Unit 21. Warm-up. Key words: The Body. ankle, brain, eye, heart, kidneys, bone, knee, liver, lungs, skin, stomach, wrist, fingers. Five systems of human body. throat. lungs. windpipe. heart. intestine. liver. bladder. stomach.
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英语课件 北师大版 高二 选修7 Unit 21
Key words: The Body ankle, brain, eye, heart, kidneys, bone, knee, liver, lungs, skin, stomach, wrist, fingers
throat lungs windpipe heart intestine liver bladder stomach
Two sides and is like a computer that processes information Listen and guess which parts of the body are being described. Which words helped you decide? brain
heart Beats 100,000 times a day, pumps blood into the lungs.
lungs Get rid of carbon dioxide Absorb oxygen Either side of the heart
eye send signals to the brain delicate organ work like a camera
stomach digests your food like a bag
Listen to the tape and fill in the blanks. • 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 _____ at regular intervals 100,000 times a day. With each beat, it circulates 80ml of blood through the body–that’s 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 found breathing
4. This is a very delicate organ. There are two in a body and they have ___________ which protect them. Light enters and reaches special light sensitive cells. These work like a _______ and finally send signals to the brain. delicate lids camera
5. This organ is like a bag which receives everything _______. It ______ your food and sends vitamins and ________ into the blood. you eat digests minerals
Work in pairs. Do you look after yourself?
How often do you do physical exercise, enough to make you out of breath?