Unit 5Water is life（ Cross-curricular connection）课件 2024-2025学年沪教版英语七年级下册

Unit 5 Water is life Cross-curricular connection 英语沪教版（2024）七年级下册 Learning objectives 目录页标题 通过本课时学习，学生能够： 1. 读懂文章，获取关键信息，理解水对于人体的重要性以及人和动物如何依赖水分来维持健康。 2. 综合运用所学知识写一篇水与人体关系的小短文。 3. 通过学习水对于生命体的作用和意义，强化科学饮水意识，提升健康意识。 重点 Think and choose What percentage of a cucumber is water? A. 65% B. 75% C. 85% D. 95% Think and choose What is the percentage of water in our body weight when we are born? A. 30%-40% B. 50%-60% C. 70%-80% Let’s find out more facts about water in the human body! Scan and answer What is the main idea of the passage? It mainly introduces the significance of water for living things and water in the human body. Read and complete Read the passage and complete the notes. about 70%-80% about 60% about 55% 1.5 0.5 Read and answer Q1: Why do women usually have less water in their bodies than men? Q2: How much water should adults drink every day to stay healthy? Women usually have more body fat than men. They need to drink about 2-3 litres per day to stay healthy. Read and answer Q3: Why do we sweat? Q4: What will happen if we lose more than 10% of our body weight in water? To help our bodies cool down. We will feel ill. Think and answer What else does the body use water for? It keeps your mouth wet and washes away dirt on your eyes. Water in our blood (血液) carries nutrients (营养物质) and oxygen (氧气) to cells throughout the body. Think and answer What else does the body use water for? Water helps remove (排出) waste (废物) from the body through urine and sweat. Water keeps joints (关节) lubricated (润滑) so they can move smoothly. Think and answer Some people don’t drink enough water every day. Some people drink soda water or fruit juice instead of water. Some people wait until they feel very thirsty to drink water. What are bad drinking habits? Think and answer Some people drink too much water quickly instead of sipping (小口喝) it slowly. Some people drink too much water right after eating meals. Some people drink water that is too hot or too cold. What are bad drinking habits? Write a composition Write a short composition about the relationship between water and the human body. Introduce water in the human body and explain why people need water. List some bad drinking habits and the disadvantages. Call on people to develop good drinking habits and keep their bodies healthy. Share your composition The Importance of Water to the Human Body Water is like fuel for the human body. Just as a car cannot run without gasoline, our bodies cannot work properly without water. In fact, about 60% of our body weight is water. Water helps carry nutrients, control body temperature, and remove waste. Without enough water, people may feel tired, get headaches, or even face serious health problems. However, many people have bad drinking habits. Some wait until they feel thirsty to drink water. Others replace water with sugary drinks like soda or juice. Drinking too much water at once is also unhealthy. It may hurt your kidneys(肾). These habits can harm our bodies. To stay healthy, we should develop good drinking habits. First, drink enough water every day—6-8 glasses. Second, drink small amounts of water regularly instead of waiting until you’re thirsty. Third, choose clean water instead of sweet drinks. Take a water bottle with you or set alarms. These can help you develop good habits. In conclusion, water is important to life. Let’s value this “invisible hero”(隐形英雄) in our bodies by drinking wisely. Start today, and your body will thank you with better energy and health! Summary talk about water in the human body. realize the importance of developing good drinking habits to keep my body healthy. know more facts about water in the human body. 2 3 1 After learning this lesson, I can Homework 1. Find out more facts about how water helps our bodies work. 2. Design a personal water-drinking schedule for one day. Present your plan to the class. 3. Work in groups to make a poster to call on people to develop good drinking habits. Bye-bye! $$