Unit 21 Human Biology Warm up课件 2021-2022学年北师大版高中英语选修七

北师大版 选修7 Unit21 Human Biology Warm up Body and Health (speaking) liver brain lungs stomach heart kidney Listen and Guess brain heart lungs eye stomach Read and Guess 消 化 维 生 素 矿 物 质 Fresh fruits are rich in vitamins like VB and VC. When we eat too much, our stomach may not digest all the food. Our body also needs minerals such as Calcium (Ca). Do you look after yourself well? A Questionnaire How long is it enough for us to sleep? How often should we brush our teeth ? Should we do exercise regularly? Can we often eat sweets？ What should we eat more? What have we learnt? Seven or eight hours sleep is sufficient. at least two times to keep clean So we should, or the body couldn’t be built up. No. Sweets contain much calorie and are bad for teeth. fresh fruits and vegetables, easy to digest, rich in vitamins Discussion the secret to a healthy life eating sleeping exercise ? Speaking a healthy life--eating What does this picture mean? Speaking a healthy life---exercise