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

U5 Water is life Cross-curricular connection Biological Science Reading: The water in our bodies Learning Objectives 学习目标 1.了解关于水的一些事实。 2. 通过实验探究与数据分析，培养科学逻辑能力。 3. 理解水对全球生命的重要性每一滴水都在守护生命的平衡。 4. 合作完成实验任务，用英语解决实际问题。 60 75 a few days 2 to 3 wash clothes and take baths wash clothes and take baths wash clothes and take baths Review 1. Do you think water is important? Why? 2. Why do we need to drink water every day? Let’s watch a video and answer the questions. (P72 Listening) Answer the questions 1. Do you think water is important? Why? 2. Why do we need to drink water every day? 1. What is the genre (体裁) of this article? A. A diary. B. A post. C. An exposition (说明文). 2. What does the article probably talk about? A. The percentage of body water. B. The importance of drinking water. C. How to save water. title General reading picture Look at the picture and the title of the article on page 21. Then answer the questions below. P80 Read Para. 1-2 and finish the charts. Body water (percent of body weight) cucumber dog about 95% about 60% Careful reading about 60% about 55% about 70%-80% Look at the numbers and answer the questions. 1. What can you learn from the numbers ? The percentage of body water goes down as we grow up. 2. Why is the amount of water a bit lower for women? Because women usually have more body fat than men. body water Newborn Adult man Adult woman 0.75 0.6 0.55000000000000004 Newborn Adult man Adult woman 1 Newborn Adult man Adult woman 1 Read Para. 3 and do the experiment study. Conclusion: Adults need to drink about __________of water per day to stay healthy. 1.5 0.5 2-3 litres Record: 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 Para. 4 and the pictures. Then answer the questions. 14:00 p.m. 17:00 p.m. 1. What’s wrong with the boy? He probably feels ill now after playing basketball for a long time. 2. Why does the boy feel ill? (Give possible reasons) Perhaps because he sweats a lot and loses too much water. 3. Do you have some good advice to avoid this dangerous situation? Yes. Bring a water bottle. / Don’t play sport for too long on hot days. / Drink water in time if you sweat a lot./ See the doctor if necessary. ...... 14:00 p.m. 17:00 p.m. Why do we drink water after sports? How should we drink water in a healthy way? Group discussion 事实上 例如 n. 青瓜 n. 数据 下降 组成 v. 替代 保持健康 n. 尿液 降温 n. 汗 adj. 正常的 超过 变累 记得做某事 percent Key words and phrases Water is life Water is life. Flowers need water. Puppies need water. Cats need water. Of course, you need water. Water cools you. Water helps your body work well. We need to drink water every day. After learning this unit, what do you think about water? 15 Key words 1. cucumber n. 黄瓜 5. sweat n. 汗 2. figure n.数据 6. normal adj.正常的 3. urine n. 尿液 7. percent n. 百分比 4. replace v.替代 Key phrases 1. in fact 事实上 5. stay healthy 保持健康 2. for example 例如 6. cool down 降温 3. go down 下降 7. more than 多于 4. make up 组成 8. get tired 变累 必做： 1. 读记本课核心词汇与短语并完成练习。 2. 上网搜索世界水日相关信息，明天上课分享。 选做： 小组合作制作一款未来的智能水杯，并介绍其功能（比如：它可以记录你的喝水量，并在你缺水时可以提醒你.....)。 Homework Thank You $$You must not know how important water is to the human body. Water is a very important resource on earth. IT can be found in soil and many places in human cells. Water content is affected by factors such as location, obesity index, age and gender. Newborn's have up to seventy five percent water. Such a high water content makes them look like fish swiming water. And a one year old baby has sixty five percent, while the average water content in adults is fifty five to sixty. So the question is, we have so much water in our bodies, what impact does this water have on our bodies? How much water do we need to drink every day to achieve a healthy baLance? In fact, water in the human body has the functions of buffering and lubricating joints, regulating temperature, nourishing the brain and spinal cord, in addition to water in blood. In fact, the water content of our brain and hot is as high as three quarters. The water content is equal to that of a banana. The water content them is eighty three percent of apples. Even solid and dry bones contained thirty one percent water. Suppose our body is mainly composed of water, and water is everywhere in our lives. Then why do we still need to drink so much water? That because while we are replying shing water, we are also losing water. The body loses about two to three leaders of water every day. IT is lost through skin evaporation. You're in breathing water vapor and fees, because these activities are especially for the body need to replenish water in time, and maintaining water baLance is important. IT can prevent dehydration or excessive dehydration. Both of these conditions can damage the body's health. Once the water content is found to be low, the hype islamic receptors will prompt the body releases anti diuretic hormone. When the kidneys receive the hormone, IT will open water channels and a special channel, which allows blood to absorb and retain water, leading to concentrated eun, causing black euro. Excessive dehydration can lead to obvious fatigue, depression, dry skin, low blood pressure and cognitive implement, and dehydrated brain requires more efforts to perform daily tasks, which can lead to brain loss and even atrophy. This is mainly caused by dehydration and over hydration. When the brain with excessive dehydration promotes D, H, IT will move slowly, and in severe cases, IT will even stop moving and release this hormone into the blood, delete the sodium electronic in the body, causing cell swelling in severe cuts. In severe cases, the kidneys cannot handle the volume of diluted euro, which leads to water poisoning. IT may also be accompanied by headaches, vomiting. In rare cases, epilepsy or death may OK, but this only occurs in very extreme in our penny special time. In our daily life, IT is relatively easy to maintain a body system in baLance. Because we are lucky enough, we can get clean drinking water for a long, a long time. Common sense tells us to drink eight glasses of water. This standard has been slightly adJusting. now. The widely accepted view is that our water intake mainly depends on our weight and environment. Recommended daily intake is two point five to three point seven leaders and two point seven leaders. For women, if we are in a healthy, energetic, elderly or feverish state, this range can be appropriately adjusted. Who has the best ability to hydrate? Drinks like coffee and tea can also replenish body fluid. The water in food accounts for one fifth of our daily water intake in fruits and vegetables, strawberries, cucumbers and even color flower have more than ninety percent water. They can provide valuable nutrient and dietary fiber while replenishing body fluids. Drinking water along and maintaining water baLance has many benefits. Studies show that the best water baLance can reduce the risk of illness, weight loss and certain cancers, any case. In any case, consuming the right amount of fluid and keeping water baLance is important. That affects your mood, thinking and daily life. Thank you for watching. Wish you all a happy.