Unit 5 Cross-curricular connection + Project 课件 2024-2025学年沪教版英语七年级下册

Before reading Discussion What are they doing? They are drinking water. 2. Why do people need water? Because water helps people stay healthy. Humans cannot live without water. The water in our bodies All living things need water. In fact, water is an important part of all plants and animals. For example, about 95% of the weight of a cucumber is water. For animals, that figure is usually around 60%. When we are born, about 70%–80% of our body weight is water. This number goes down as we grow up. For an adult man, water makes up about 60% of the body weight. The amount of water is a bit lower for women: around 55%. This is because women usually have more body fat than men. A lot of water leaves our bodies every day, so we need to replace it. Adults need to drink about 2–3 litres per day to stay healthy. Every time we go to the bathroom, we lose water. Every day, there is around 1.5 litres of water in our urine. If your urine is very yellow, you need to drink more water. The body also loses water to help it cool down. This is called sweat. We lose about 500 ml of water as sweat per day. It is normal to sweat a lot when we do sport or go out in hot weather. However, if we lose more than 5% of our body weight in water, we will get tired. It is dangerous to lose more than 10%. If that happens, we will feel ill. Remember to bring a water bottle every time you play sport! Read the text. Answer the following questions. Why is water important in the human body? Why do we need to drink water? Why do we sweat? What should we do when we lose water? Read the text. Answer the following questions. Why is water important in human bodies? Why do we need to drink water? Why do we sweat? What should we do when we lose water? Because water makes up 70—80 per cent of our body weight. To stay healthy. To help our bodies cool down. We should drink more water. Read the text. Complete the notes below. about 60% about 55% about 70%—80% 1.5 0.5 Practical activities Work in groups and choose one of the tasks. Study and research: What else does the body use water for? Group discussion: How can we make sure we drink enough water? Make a poster: Work in groups and design a“drinking water reminder”poster. (e.g. when you drink water, how you drink water) Making a presentation for World Water Day World Water Day (22 March) is about helping people without access to safe water. In this project, you are going to work in groups and make a presentation on the topic “Water is life” for World Water Day. Water is life 2. An introduction 1. A title 3. Some numbers or pictures A fact sheet includes: Water is important in daily life Water is important in society People need to drink water. … Water powered the first machines in the clothes industry. … Different uses of water Ways of saving water wash hands … Turn off the tap … Facts about water The importance of water Different uses of water Ways of saving water Checklist Homework 基础作业 1. 小组合作完成项目式学习。 2. 在全班面前展示分享作品。 拓展作业 欣赏其他小组的作品，修改和丰富本小组的作品。 $$