Warm-up Unit21 北师大版第七模块

1、Unit 21 Human Biology,Warm-up,1. Find six Key Words to label the parts of the body in the diagram.,Key Words: The Body ankle, brain, eye, heart, kidneys, bone, knee, liver, lungs, skin, stomach, wrist, fingers,brain,lungs,heart,liver,stomach,kidneys,This organ weighs about a kilo and is made up of t

2、wo sides. It is like a super computer that processes information.,This is about the size of a closed hands. Its job is to break down the food we eat so that we have energy and can be healthy and strong.,stomach,brain,This organ beats 100,000 times a day. With each beat it moves 80 milliliters of blo

3、od thats 8,000 liters of blood per day! It pumps blood into the lungs, where it receives oxygen, before being pumped around the rest of the body.,heart,Either of the two organs in the body that remove waste products from the blood and produce URINE.,kidney,A large organ in the body that cleans the b

4、lood and produces BILE.,liver,These organs absorbs oxygen and get rid of carbon dioxide. They are situated on either side of the heart. They receives air as a result of breathing and when blood passes through, they give it oxygen.,lungs,2. Listen and guess which parts of the body are being described

5、. Which words helped you decide?,brain,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,eyes,delicate organ,work like a camera,send signals to the brain,stomach,like a bag,digests your food,This organ _ about a kilo a

6、nd _ two sides. It is like a super computer that _ information.,weighs,is made up of,processes,Listen to the tape again and fill in the blanks.,2. This organ _ at regular intervals 100,000 times a day. With each beat, it circulates 80ml of blood through the bodythats 8,000 liters of blood per day! I

7、t _ 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.,absorb,g

8、et rid of,found,breathing,4. This is a very delicate organ. There are two in a body and they have delicate lids which protect them. Light enters and reaches special light sensitive cells. These work like a _ and finally send signals to the brain.,camera,5. This organ is like a bag which receives eve

9、rything _. It _ your food and sends vitamins and _ into the blood.,you eat,digests,minerals,Do you look after yourself?,Work in pairs.,4. Do the questionnaire with your partner.,Language points,1. Its like a super computer that processes information. 它就像一个处理信息的超级计算机。 process vt. (电脑) 处理 (数据),e.g. Th

10、e new network will enable data to be processed more speedily. 这个新网络将能够更快地处理数据。,2. With each beat, it circulates 80 ml of blood through the body 心脏每跳一下，就使80毫升的血液 在体内循环。 circulate vt. (使) 循环，(使) 流通,e.g. Swimming helps to get the blood circulating through the muscles. 游泳有助于血液在肌肉间循环。 Ceiling fans circul

11、ated warm air around the room. 天花板风扇使唤暖气循环到房间各 个角落。,3. It pumps blood into the lungs, 它把血液泵入肺中， pump vt. (用泵) 抽出，注入 (液体、 气体等),e.g. The fire department is still pumping floodwater out of the cellars. 救火队还在从地窖里抽出洪水。,4. These organs absorb oxygen and get rid of carbon dioxide. 这些器官吸收氧气，排出二氧化碳。 absorb vt. 1) 吸收 (液体) e.g. Plants absorb nutrients from the soil. 植物从土壤中吸收养分。,2) 理解，掌握 e.g. Her capacity to absorb information is amazing. 他理解信息的能力真令人惊异。,5. It digests your food and send vitamins and minerals into the blood. 它消化食物，并把维生素和矿物质 送入血液中。 digest vt. 1) 消化 (食物),e.g