Unit 2 Saving the Earth Topic 2 Section D 课件 2025-2026学年仁爱科普版（2012）九年级英语上册

Unit 2 Saving the Earth Topic 2 All these problems are very serious Section D 1 Language goals By the end of the class, you will be able to 1.Master the following words ,phrases and sentences: Words： avoid, discover, thirsty, nearly, law Phrases: day by day, be short of Sentences：①But people’s need for water is increasing day by day. ②While nearly ¾ of the earth is covered with water, we are still short of drinking water. 2. Master Indefinite Pronoun and Adverb 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 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 Indefinite pronoun and adverb 一、构成。 不定代词、副词是由some, any, no, every与thing, one , body, where 等构成。 e.g. something, someone, nowhere, anybody等。 二、用法。 1．通常情况下,由some, every加后缀构成的不定代词、 副词常用于肯定句；由any加后缀构成的不定代词、副 词常用于疑问句、否定句中。 e.g. You will find your bag somewhere. Can you hear anything? Grammar 课文关 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 注意：当说话人希望得到肯定答复,或是表示建议、请求等意图时,something, somebody, someone也可以用于疑问句中。当要表达“任何人；任何事物”时,anything, anybody, anyone也可以用于肯定句中。 e.g. Would you like something to drink? Anybody can do it except Tom. Grammar Read 1a and find out the key phrases and expressions. 似乎_____________ 大量的________________ 需要做某事________________ 从...带走_________________ 取得进步________________ 日复一日_________________ 被...覆盖___________________ ...短缺____________ 用...做..._____________ seem to plenty of need to do take away from make progress day by day be covered by be short of use sth. for doing sth. 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 Read 1a again and answer the questions. 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 for watering plants or drinking directly. 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. 3.What will be the best way to solve the problem in the future in the passage? 4.Do you know any other ways to solve the problem? What is it? To find cheaper ways of taking the salt away from the sea water. ______ 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. Functions into blowing away here and there / everywhere so As water pollution Write a proposal about saving water to all the students in your school. You can write it like this: 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 Key points 1. How can we avoid a serious water shortage? 我们如何避免水资源短缺呢？ 观察下列三个句子，归纳总结avoid的用法。 1). You should pay attention to your spelling, and avoid it. 2). We should drive carefully to avoid traffic accidents. 3). Mike tried to avoid answering my question. avoid意为____________,后面可接_______,________,_________. 避免，防止 名词 代词 动名词 avoid doing sth.避免做某事 2. But people’s need for water is increasing day by day. 但是人们对于水的需求正与日俱增。 day by day意为“日复一日，一天比一天地...” 想一想，年复一年怎么说？ year by year Imagine you are water. Please tell us your functions, problems and wishes. I’m water. I used to be … Factories usually pour … I wish human beings … While nearly 3/4 of the earth is covered with water, we are still short of drinking water. 虽然地球表面进四分之三被水覆盖，我们仍旧缺乏饮用水。 1). be covered with意为____________. 地面上覆盖着积雪。 被...覆盖 The ground is covered with snow. 2). be short of意为____________. 我这个星期手头紧，你能借我点钱吗？ 缺少 I'm short of money this week. Can you lend me some? 扩展： be short for意为“...的简称。” The word “ad” is short for “advertisement”. Making Posters About Natural Resources Divide the class into several groups: Water Group, Tree Group, Soil Group … 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 make 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… 3. Make some posters with the results. Project Read 1a again and answer the questions. 1. Why is our world thirsty when ¾ 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 for watering plants or drinking directly. 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. 通过以上活动，我们可以知道：为了解决水资源短缺，我们可以做到以下三点： 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. 当堂检测见DCF课件 活动小结 Unit 2 Topic 2 Section D 巩固不定代词和副词的用法 学习怎样保护水资源以及节约用水 当堂检测 根据句意及汉语提示完成句子。 1. If we want to use the sea water, we must ____ _____(拿走) the salt from the sea water. 2. How can we ______(避免) a serious water shortage? 3. We should _________(找到) ways to reuse water. 4. People’s need for water is increasing __________(一天天). 5. Although the world is hungry, it is even ________(更渴的). 6. While _______(几乎，差不多) ¾ of the earth is covered with water, we are still short of drinking water. take away avoid discover day by day thirstier nearly Lavf57.62.100 $