Unit9 Lesson2 Brain Power 课件-2023-2024学年高中英语北师大版（2019）选择性必修第三册

新北师大版高中英语选择性必修三Unit 9 Human Biology Lesson2 Brain Power brain lungs stomach heart liver kidney Lead-in 1.This organ weighs about a kilo and is made up of two sides. It is like a super computer that processes information. brain Let’s guess what organs they are. Lead-in 2. This organ beats at regular intervals 100,000 times a day. With each beat, it circulates 80 ml of blood through the body! It pumps blood into the lungs, where it receives oxygen, before being pumped around the rest of the body. heart Lead-in 3. These organs absorb oxygen and get rid of carbon dioxide. They are found on either side of the heart. They receive air as a result of breathing and when blood passes through, They give it oxygen. lungs Lead-in 4. This organ is like a bag which receives everything you eat. It digests your food and sends vitamins and minerals into the blood. stomach Lead-in What is the most important organ among the different parts of body? It is the brain that determines how you stand out and get ahead. Lead-in Activate and share How much do you know about the brain? Different areas of the brain are responsible for different functions. 额叶 顶叶 颞叶 枕叶 小脑 协调 Now let’s test our brains. Circle the odd one out. Circle the odd one out. Match the words from the box with their definitions. atom nerve billion cell organ ( ) 1. one thousand million ( ) 2. a part of the body that has a particular purpose, e.g. the heart ( ) 3. the smallest piece of something that can exist alone ( ) 4. a tiny part of the body that helps carry messages to and from the brain ( ) 5. a unit of living matter billion organ atom nerve cell Before listening to a lecture about the brain, read the statements and write T (true) or F (false). ( ) 1. The brain consists of only white matter. ( ) 2. The brain weighs just over a kilo. ( ) 3. The brain contains about one billion cells. (