初中外研版 (新标准)Module 12 Save our worldUnit 2 Repeat these three words daily: reduce reuse and recycle.教

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Module 12  Save our worldUnit 2  Repeat these three words daily: reduce, reuse and recycle. 设计说明本单元以图片导入，引导学生谈论recycle，然后到reuse，为学习课文做好准备。然后根据课文，设置速读、精读，加深学生对课文reduce，recycle和reuse的理解；并学习课文中的重难点知识；通过训练加深对课文所学内容的巩固。引导学生从句到篇训练与环保相关的写作。最后通过做题，巩固运用所学知识。教学目标通过本单元的教学，让学生达成以下目标：1. 知识目标掌握本单元新单词及短语china，divide, plastic, policy, reuse, bottle, throw away, repeat, reduce, cloth, ton，tons of, rubber, recycling， rapid, step，grandson，granddaughter。 2. 能力目标能学会用because, so, so that提出建议或给出原因。3. 情感目标通过读写训练，能够了解环境保护的重要性及如何进行环境保护，创造绿色的家园。重点难点重点：本单元的重点单词、短语和句型难点：提出建议并给出原因教学准备PPT课件，教材活动2的录音，有关环境的图片授课时数2课时教学过程Step 1  Lead-inWhat does this symbol mean? recyclingWhat can we recycle?   recycle bottles              reuse thingsStep 2  Reading & vocabulary1. Look at the pictures. Say which ways are good for the environment and why. （1）Let students discuss in pairs. （2）Discuss answers as a class. 1 We shouldn’t use disposable food box or chopsticks. 2 We should use some bowls and spoons made of china. Because we can use them many times. 3 Someone threw an empty bottle in a river. 4 There are three rubbish bins for recycling, so please divide the waste before you throw things into them. They are good for the environment because we can save energy. 2. Look at the title of the passage. What suggestions do you think the passage will make? Use the words in the box to help you.  china        divide      necessary  plastic      policy     reuse （1）Tell the students to look at the title，the pictures and the words in the box.（2）Ask them to work with a partner and write down at least three predictions about what suggestions the passage will make. Answers（Just for reference）:☺It is better to use china cups and bowls because they can be used many times. ☺It is better to divide the waste into things to recycle and things to throw away. ☺It is necessary to use less plastic bags. ☺You should make a recycling policy for your classmates and yourself. Step 3  Reading1. Read the passage and answer. 1 How many ways are mentioned to be greener?__________________________________________________ 2 What are they?  __________________________________________________ Answers：1 Three.     2 Reduce, reuse and recycle.2. Read Paragraphs “Reduce, Reuse, Recycle”, and complete the table.  meaningsuggestionsReduceuse less1 Do not waste things. It ________ and _________. 2 Do not _______________ than you can finish. 3 ____________ when you do not need them. 4 Before you buy something new, think __________. Reuse 1 Use things for ______________. ____________ them so that they will last. ____________ them if possible. Do not ____________ and buy new ones. 2 It is better to ___________________ because they can be used many times. RecycleChange things into something else to be reused1 ___________ your rubbish __________ plastic, glass, paper and rubber. 2 ________________ for the whole community. 3 Buy products ______________ to help save trees. Answers： meaningsuggestionsReduceuse less1 Do not waste things. It saves money and causes less pollution.2 Do not order more food than you can finish. 3 Turn off the lights when you do not need them. 4 Before you buy something new, think whether it’s really necessary. Reuseuse again1 Use things for as long as possible. Look after them so that they will last. Repair them if possible. Do not throw them away and buy new ones. 2 It is better to use china cups and cloth bags because they can be used many times. Recyclechange things into something else to be reused1 Divide your rubbish into plastic, glass, paper and rubber. 2 Develop a recycling policy for the whole community. 3 Buy products such as recycled paper to help save trees. 3. Listen and read. （1）Listen and read after the tape. （2）Read in groups. 4. Read the phrases in the passage and put them into Chinese. turn off ask for divide... into...throw awaybe harmful to as long as possible look after so that  make a change take these simple steps Step 4  Language points1. And what do you do with the bottles when they are empty?瓶子空了时，你怎样处理它们？do with=deal with 应付，处理do with/deal with（1）do with 常与what 连用，侧重对于某事物的利用与处理。（2）deal with常与how连用，强调处理问题的方式，方法。What do you do with the old clothes?你怎样处理旧衣服？I don’t know how to deal with these old photos. 我不知道如何处理这些旧照片。2. Do you divide the waste into things to recycle and things to throw away?你将废物分成可回收利用的和要丢弃的吗？divide作动词，意为“分开，分割”，指把一个整体分成若干部分，常与介词into连用，divide... into...表示“把……分成……”。Please divide the apple into four pieces. 把这个苹果分成四块。We divided this passage into 3 parts. 我们将这篇文章分成3部分。3. We all need a healthy environment，but we produce waste every day，and it is harmful to our environment. 我们都需要一个健康的环境，但是我们每天生产垃圾，这对我们的环境有害。harmful是形容词，意为“有害的”，反义词是harmless（无害的）。be harmful to意为“对……有害”，相当于be bad for/do harm to。Smoking is harmful to our health. =Smoking does harm to our health. 吸烟对健康有害。Junk food is harmful to teenagers. 垃圾食品对青少年有害。4. Use things for as long as possible. 尽可能长时间地使用东西。as...as possible意为“尽可能……”，和as...as sb. can同义。在as...as possible结构中，两个as之间要用形容词或副词的原级。Please come here as soon as possible. ＝Please come here as soon as you can. 请尽快来这里。He does homework as carefully as possible. 他做作业尽可能地细心。Step 5  Practice1. Check（√）the suggestions that are mentioned in the passage. 1 Order food that you can finish. 2 Use less electricity at home. 3 Learn ways to recycle rubbish. 4 Use paper cups and paper bags. 5 Repair things. 6 Divide rubbish into different groups. 7 Collect waste or rubbish to raise money. 8 Burn things to save money. Answers：1 √    2 √    3 √    5 √    6 √ 2. Ask the students to find two things they should do and two things they should not do in the passage. Give reasons. Use their answers to write sentences. Answers（Just for reference）： things should（not）doReasonsTwo things you should doWalk or ride a bike to school. Walking or riding a bike doesn’t burn oil or cause air pollution. Use china cups and cloth bags. China cups and cloth bags can be used many times. Two things you should not doBuy new clothes just because they are modern.Old things can be as good as new ones. Throw things away without recycling. It’s better to change things into something else than throwing them away or burning them. 3. Complete the passage with the correct form of the words in the box. （1）Let students read the words in the box. （2）Tell them to complete the passage with the correct form of the words in the box. divide    granddaughter    plastic     policy    rapid      recyclerepeat       step      tonWe throw away（1）__________ of rubbish every year. If we want a clean world for our grandsons and （2）___________, we have to reduce, reuse and （3）________. （4）_______ these three words every day. The first （5）_______ is to use less. The second is to use things as long as possible. Then （6）_______ your rubbish into（7）________, paper, rubber and glass. Finally, draw up a recycling （8）________ for your community. We cannot hope for （9）_______ change, but every little bit helps!Answers：（1）tons   （2）granddaughters   （3）recycle   （4）Repeat （5）step   （6）divide   （7）plastic   （8）policy   （9）rapidStep 6  Writing 1. Work in pairs. Make a list of things you can do to make your school greener. （1）Let students write down their lists and compare their ideas in groups. （2）Compare ideas as a class. * Don’t throw bottles away. * Write or print on both sides of the paper. * Bring your own chopsticks from home and reuse them. * Don’t use disposable cups or plates, either. * Put paper, plastic, glass and metal in the recycling bins. 2. Write a passage on how to make your school greener and give reasons. Use the list you have made in Activity 7 to help you. Use because, so and so that. Answer（just for reference）：                       Help Make a Green School!We can do many things to make our school green. Remember the three most important words: reduce, reuse and recycle!ReduceMany people waste paper because paper is cheap. But we should use less paper so that we can save trees. Make sure you write or print on both sides of the paper so that nothing is wasted. This simple tip will cut your paper usage in half!ReuseMany people like disposable cutlery because they don’t have to wash up. But these things aren’t green. Bring your own chopsticks from home and reuse them. Don’t use disposable cups or plates, either. RecycleWe all eat and drink at school every day, so there are plenty of wrappers, bottles and cans to dispose of. But don’t just throw your bottles, wrappers and cans in the rubbish bin—support the school’s recycling programme! Put paper, plastic, glass and metal in the recycling bins. Follow these steps and we’ll all have a green school!Step 7  Homework 1. Read the passage. 2. Try to retell paragraphs reduce, reuse and recycle according to the table. 当堂达标Ⅰ. 根据句意及汉语意思写出单词。1. If you take this job, you will have to buy a pair of ________（橡胶）gloves. 2. _________（塑料）bags are bad for the environment. 3. Sarah made ________（迅速的）progress in her studies. 4. If we ________（重复利用）something, it will not end up as waste. 5. The bank put pressure on the company to _________（减少）its borrowing. Ⅱ. 用所给单词的适当形式填空。1. Repeat the three words _________（day）:reduce, reuse and recycle. 2. Take your own bag when _________（shop）. 3. Smog weather is __________（harm）to people’s health. 4. We should try to stop factories _________（pollute）the rivers. 5. Recycling things is better than _________（throw）things away. Ⅲ. 根据提示翻译句子。1. 他们正在使沙漠变为农田。（change... into）   ____________________________________________________2. 我们一定要采取措施防止这样的事情再发生。（take steps）   ____________________________________________________3. 电池可以回收，不要扔掉它们。（throw away）   ____________________________________________________4. 游戏开始前，我要把你们分成三组。（divide...into）   _____________________________________________________5. 我不知道如何处理这些老照片。（do with）_____________________________________________________6. 我尽可能认真地阅读这本书。（as...as possible）_____________________________________________________答案：Ⅰ. 1. rubber    2. Plastic    3. rapid    4. reuse    5. reduceⅡ. 1. daily   2. shopping    3. harmful   4. polluting  5. throwingⅢ. 1. They are changing desert into farmland. 2. We must take steps to prevent this from happening again. 3. Batteries can be recycled. Don’t throw them away. 4. Before the game starts, I’ll divide you into three groups. 5. I don’t know what to do with the old photos. 6. I read the book as carefully as possible. 板书设计Module 12  Save our worldUnit 2  Repeat these three words daily: reduce, reuse and recycle. 1. do with         what            deal with          how2. divide... into...    把……分成……3. be harmful to     对……有害     be bad for/do harm to4. as...as possible    尽可能……     as...as sb. can教学反思 教学反思