Unit2 Saving the earth Topic2 Section D 课件-2024-2025学年仁爱科普版九年级英语上册

Topic 2 All these problems are very serious. 【Unit2 Saving the earth】 仁爱科普版九年级上册英语课件 SectionD 综合复习课 1 Learning objectives After learning the lesson, we can: 01 02 03 04 Learn some core words and expressions of the text; Summarize and use Indefinite Pronoun and Adverb correctly. Talk about ways of saving water. Write a proposal. Come on！ Practice makes perfect！ Review Grammar Indefinite Pronoun and Adverb _______of us likes pollution. Don’t spit ___________ in public. _________ should care for wild animals and plant more trees. We should do ___________ we can to protect the environment. None anywhere Everyone everything Review Functions ______ a result（结果）, a lot of rich land has changed _____（变为）desert. Trees can stop the wind from ______ the earth _____(吹走）. We shouldn’t leave rubbish ___________(到处). All these problems are very serious,_____(所以) we must do something now. into blowing away here and there so As Review What is the video mainly about? Lead in Imagine you are water. What do you want people to do? Reuse water in multiple ways. Avoid water pollution. Stop water waste. Pre-reading Fast reading：Put the following paragraphs in order. ( ) The sea seems to have the best answer. There is plenty of water in the sea. But we need to take the salt away from the sea water. This is very expensive. If scientists can find cheaper ways to do it, we can solve the problem of the shortage of water. ( ) How can we avoid a serious water shortage? First, we should save water and not waste it. Second, we should protect our water resources and not pollute them. Third, we should discover ways to reuse water. Scientists have made some progress in this field. Today, some large cities are reusing their water. But people’s need for water is increasing day by day. We still don’t have enough water. What else can we do? ( ) Although the world is hungry, it is even thirstier. While nearly ¾ of the earth is covered with water, we are still short of drinking water. This is because about 97% of the water on the earth is sea water. So we can’t use it for watering plants or drinking directly. Humans can only drink and use fresh water from places including rivers, lakes and underground. 3 2 1 While-reading Find out the topic sentence of each paragraph. Although the world is hungry, it is even thirstier. How can we avoid a serious water shortage? The sea seems to have the best answer. Paragraph 1 Paragraph 2 Paragraph 3 While-reading 1. Why is our world thirsty when 3/4 of the earth is covered with water? 2. What can we do now to avoid the water shortage? Because about 97% of the water on the earth is sea water. We can't use it directly. First,we should save water and not it waste...... Careful reading： Answer some questions. While-reading 3. What will be the best way to solve the problem in the future in the passage? 4. Do you know any others to solve the problem? What are they? We need to take the salt away from the sea water. 海水冻结，蒸馏法，反渗透法等。 While-reading “南水北调”工程 While-reading 1. There is plenty of water in the sea. But we need to take the salt away from the sea water. plenty of 大量的，许多的，后接可数名词复数或不可数名词。 take…away from 从….拿走….. Language points avoid v.防止，避免 v.发现，找到 e.g. He avoided answering my questions. 不定式不可以做宾语。 2. How can we avoid a serious water shortage? 我们如何避免水资源短缺呢？ 3. ...we should discover ways to reuse water.我们需要找到再利用水的方法。 代词 动名词 名词 Language points 2 Discuss in groups different ways of protecting and saving water. Write down the key information. Example: Pass laws( n.法律) against water pollution. Collect and reuse waste water. … … Post-reading How to protect and save water? Example: Pass laws( n.法律) against water pollution. Collect and reuse waste water. —————————————— —————————————— 5. ———————————————————— 6. —————————————————— ___________________________________ … Turn off the taps in time. Take a shower instead of a bath. stop…from…, pour…into…, turn off, tap(水龙头), wash clothes/vegetables, clean the floor, throw…into… Stop the factories from pouring waste water into rivers. Don’t throw litter into the water. After we wash clothes or vegetables, we can reuse the water to clean the floor. Post-reading Write a proposal about saving water to all the students. My dear friends, Water is very important to human beings. Let’s do something to protect and save it. First, ________ . Second,_________. Third, _________. Let’s try our best to save water and our planet. Writing My dear friends, Water is very important to human beings. Let’s do something to protect and save it. First, we should protect our water resources and not pollute them. The government should also pass laws against the water pollution. Second, we should save water in our daily life, turn off the taps in time, take a shower instead of a bath, and always remember to collect and reuse water. Third, let’s try to spread the message about protecting and saving water. Make more people around us know the problem of water shortage and how to help solve it. Let’s try our best to save water and our planet. Student Union Show time Writing Making Posters About Natural Resources Each group should discuss their own uses, the problems that they face and their wishes. Then give a report in class. Example: Uses: I am soil. Plants can’t grow without me. People use me to do many things … Problems: Sometimes people use too many chemicals in the fields. What’s worse, they put waste into the land … So I’m hurt. Please help me. Wishes: I hope human beings can protect and take care of me. And then I could do more useful things for them… 2. Make some posters with the result. Project To save water is to save life. Don't let the last drop of water become our tears. Project Summary We learn: some words: avoid, discover, thirsty, nearly, law 2. some phrases: day by day, be short of 3. some sentences: (1)But people’s need for water is increasing day by day. (2)While nearly ¾ of the earth is covered with water, we are still short of drinking water. We can: 1. Talk about ways of saving water. 2. Summarize and use the indefinite pronoun and adverb correctly. 3. Write a proposal. Assessment Try hard OK Good Excellent Read and write new words. Summarize and use the indefinite pronoun and adverb correctly. Talk about some ways of saving water. Write a proposal about saving water to all the students. Homework 基础性作业： 1. Review the vocabulary and the sentence structures. 提高性作业： 2. Polish the proposal about saving water to all the students. 拓展性作业： 3. Change the ways of protecting and saving water into a passage. Lavf57.62.100 Lavf58.28.100 Lavf58.28.100 $$nullnullnullnull