Unit2 Topic2 SectionD （趣味课堂课件）英语仁爱科普版九年级上册

nullnullnull 九上Unit 2 Saving the Earth Topic 2 All these problems are very serious. Section D I、Master the new words and phrases： void, discover, thirsty, nearly, law, shortage, resource, reuse, take sth. away from…, the shortage of water / water shortage, avoid (doing) sth., make progress in... II、Be able to talk about ways of saving water. III、Summarize and use the indefinite pronoun and adverb correctly. Be able to write a proposal. Learning aims: Review Say the following phrases. 数以百万计的 究竟，到底 拿走，带走 许多 种类的 从...逃走 结果 涉及 对...有益 在这期间 millions of on earth take away many kinds of escape from... as a result refer to be good for during this period Read through Sections A-C and fill in the blanks with the correct words. 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? 2. 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. 闯关练习： 1. When Anna opened her wallet, she was surprised to find ________. It was empty. A. nothing B. anything C. something D. everything 2. There's ________ wrong with the engine—it's making strange noises. A. nothing B. anything C. everything D. something 3. Did you do __________ during the last summer vacation? A. something special B. special something C. anything special A D C Read through Sections A-C and fill in the blanks with the correct words. ______ 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 Pre-reading Warm up Why can’t we use sea water directly? New words &expressions We know the world is thirsty. While nearly 3/4 of the earth is covered with water, we are still short of drinking water. /'θɜ:sti/ adj. 缺水的；口渴的 /'nɪəli/ adv. 几乎，将近 be covered with 被......覆盖 be short of 缺乏 How can we avoid a serious water shortage? We should protect our water resources and not pollute them. /ə'vɔɪd/ v. 防止，避免 /'ʃɔ:tɪdʒ/ n. 不足；缺失；短缺 /'ri:sɔ:s/ ; /rɪ'sɔ:s/ n. 资源；财力 We should discover ways to reuse water. Pass laws against water pollution. /dɪ'skʌvə/ v. 发现，找到 /,ri:'ju:z/ v. 再次使用；重复使用 /lɔ:/ n. 法律，法令；定律 While-reading water pollution 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 … 1a Read the passage and put the following paragraphs in the correct 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. 1 2 3 1b Read 1a again and answer the questions. 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. 1. Why is our world thirsty when ¾ of the earth is covered with water ? Because about 97% of the water on the earth is sea water, we can’t use it for watering plants or drinking directly. 提示：点击文本框可听录音。 1b Read 1a again and answer the questions. 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? 2. What can we do now to avoid the 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. 提示：点击文本框可听录音。 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? ( ) Scientists haven’t made any progress in this field. ( ) Water is reused nowhere. ( ) People’s need for water is increasing day by day. Read Paragraph2 and mark T or F. F F T 1b Read 1a again and answer the questions. 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. 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. 提示：点击文本框可听录音。 Watch and think Why should we save water? Example: Pass laws ( n.法律) against water pollution. Collect and reuse waste water. … … Discuss in groups different ways of protecting and saving water. Write down the key information. 2 Write a proposal about saving water to all the students in your school. 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. 3 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 Project 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 result. Post-reading 1. 似乎要做某事 ___________________ 2. 避免（做）某事 ______________________ 3. 缺乏 ______________ 4. 被......覆盖 ____________________ 5. 做某事的最好方法 __________________________________ 6. 解决，对付，处理某事 _______________________________________ 7. 使用A去做B _________________________________ 8. 别的什么事 _______________________________ 9. 一天又一天地 ________________ 10.同时 ____________________ Find the phrases. seem to do sth. avoid (doing) sth. be short of be covered with the best way to do sth./of doing sth. deal with sth. (how) = do with sth. (what) use A for doing B = use A to do B what else = what other things day by day at the same time 1. The sea seems to have the best answer.海洋似乎有最好的答案。 seem可用作连系动词或不及物动词，意为“似乎，好像”，常用于以下结构中： (1)“主语+seem+(to be)+adj.”,表语多为形容词，有时是其他单词或短语，以说明主语的特征或状态。 (2)“主语+seem+不定式”，此句型中的 seem 与动词不定式一起构成复合谓语形式。如：She seemed to stay at home all day.她似乎整天都待在家里。 如：She seems(to be)angry. 她似乎生气了。 (3)“It seems+that 从句”中，代词 it 是形式主语，that 引导主语从句。 如： It seems that she stayed at home.她好像 在家。 1. The sea seems to have the best answer. 海洋似乎有最好的答案。 seem可用作连系动词或不及物动词，意为“似乎，好像”， 常用于以下结构中： (1)“主语+seem+(to be)+adj.”,表语多为形容词，有时是其他单词或 短语，以说明主语的特征或状态。 (2)“主语+seem+不定式”，此句型中的 seem 与动词不定式一起构成 复合谓语形式。 eg. She seemed to stay at home all day. 她似乎整天都待在家里。 She seems (to be) angry. 她似乎生气了。 (3)“It seems+that 从句”中，代词 it 是形式主语，that 引导主语从句。 eg.It seems that she stayed at home. 她好像在家。 Key points Key points 名词 avoid 代词 动名词 eg. He avoided answering my questions. avoide + doing sth. 2. How can we avoid a serious water shortage? 我们如何避免水资源短缺呢？ v.防止，避免 Key points 3. We should discover ways to reuse water. discover v. 意为“发现、发觉”发现了原本存在的东西。 eg. Columbus discovered America. 哥伦布发现了美洲大陆。 invent v. 意为“发明、创造”通过科学的手段弄出来原本没有的东西。 eg.The computer was invented in 1946. 在1946年发明了电脑。 create v. 意为“创作”文学和文艺作品。 eg. Walt Disney created Mikey Mouse. Walt Disney创造了米老鼠。 Key points 4. While nearly 3/4 of the earth is covered with water, we are still short of drinking water. 然而地球表面近四分之三被水覆盖，我们仍旧缺乏饮用水。 (1) be covered with “被···覆盖”。 (2) be short of “缺乏，短缺”。 eg. She is always short of money. 她总是缺钱。 【拓展】① for short “简称，缩写”。 eg. Robert is called Bob for short. 罗伯特简称为鲍勃。 ② short for “是···的缩写”。 eg. TV is short for television. TV是 television 的缩写形式。 4. While nearly 3/4 of the earth is covered with water, we are still short of drinking water. 然而地球表面近四分之三被水覆盖，我们仍旧缺乏饮用水。 (3) nearly adv. 几乎，将近 nearly 与 almost 区别 ： （多数情况下可互换） almost 强调的是“十分接近”；可与否定词（如no, nothing,none,never等）连用； nearly 强调的是“尚有不足”； 通常不与否定词连用；nearly前面可以使用not,very, pretty等词修饰，而almost则不能。（not nearly “远不如”） e.g. I have almost never seen him. He had $20, but that was not nearly enough for the trip. Key points Exercises I.用所给词汇的适当形式或根据汉语提示填空。 1. Ben has drunk two whole bottles of water. He seems much ___________ (thirsty) than I. 2. You should avoid __________ (make) such mistakes when taking an exam next time. 3. We are still _________ of water. How can we solve the problem of the water ___________? (short) 4. Can you think of more ways _________ (save) energy? 5. He likes reading, ___________ (include) novels, newspapers and poetry. 6. Scientists have made some ___________ (进步) in this field. thirstier making short shortage to save including progress II.按要求完成句子。 1. Both this book and that one are worth reading.（改为否定句） ________ this book _______ that one is worth reading. 2. David used to go somewhere quiet to read books. （改为一般疑问句） ______ David _______ to go anywhere quiet to read books? 3. We shouldn’t waste water. （对画线部分提问） _______ _________ we _______? 4. He seems to have solved the serious problems.（改为同义句） _______ _______ that he has solved the serious problems. 5. 中国北方下雪时，地面上覆盖着厚厚的白雪。（完成译句） When it snows in northern China, the ground ______ _________ _______ thick white snow Exercises Neither nor Did use What shouldn’t do It seems is covered with Summary We learn: 1. 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. Homework 1. Learn the new words and phrases by heart. 2. Recite the passage in 1a. 3. Finish Section D in the workbook. 4. Preview Section A in Topic 3. Thank you! Lavf58.46.101 null 176179.17 93780.93 Lavf58.46.101 Lavf58.46.101 null 122466.18 $$nullnull