1、课 题 Unit 3 Language in use 共 1 课时主备教师 使用教师备课日期 上课日期教学目标1.Knowledge objective来源:学优高考网 gkstk来源:学优高考网To practice word-building: compounds, derivatives, conversion来源:学优高考网2.Ability objective来源:gkstk.ComEnable students to learn how to protect environment and Earth Hour.来源:gkstk.Com3.Moral objectiveTo aro
2、use the awareness of students protecting environment.教材分析教学重难点 To learn word-building: compounds, derivatives, conversion课 型 Revision and application 授课方 法PWP method, task-based method 教具准备 A tape recorder, multimedia and some pictures教与学的设计 我的修改Chapter 1 Lead-in : Warming up(营造氛围，导入新课)Step 1 Langua
3、ge practice Reuse means “use again”.Though pollution is heavy now, I dont think its hopeless.Step 2 Make a new words. Join the parts of words in Box A with the words in Box B. You need to use some of the parts more than once.A able -ful im- -less re- un-B care collect hope possible use usual wanted
4、wasteChapter 2 The students can learn by themselves, and ask some questions about the study. (自主学习 提出疑问)Step 3 Now work in groups. Play the guessing game English for Fun.English for Fun1. full of care _2. can be collected _3. full of hope _4. without any hope _5. not possible _6. not usual _7. witho
5、ut any use _8. use again _9. not wanted _10. making a lot of waste _Step 4 Learning to learnSometimes if you know the meaning of the parts of a word, you can work out the meaning of the whole word. re + new + able; re = again, able = can be renewable = can be new againChapter 3 The students can lear
6、n the main point with the help of the teacher, and solve the problems. (精讲点拨)Step 5 构词法1. 合成法将两个或两个以上独立且语义不同的单词合在一起构成新词的方法叫做合成法。合成法是一种比较灵活的构词方法，可以合成名词、形容词、副词、代词、动词等。例如：afternoon, sportsman, blackboard, sportsperson, newspaper, airplane, classmate, grandfather 等就是通过合成构词法构成的名词；kind-hearted, middle-age
7、d, hard-working 等为合成形容词；however, maybe, himself, everyone, nothing, overlook 等也都是通过合成法构成的单词。2. 派生法通过在词根前面加前缀或在词根后面加后缀构成一个新词的方法叫作派生法。要通过派生法理解和记忆单词, 我们需要掌握常见的前缀和后缀及派生规律。(1) 常见前缀前缀 含义 例词dis- 不 disagree, dislikeen- 使处于某种状态 enable, enrichim-, in- 不 impossible, impatient, inexpensiveinter- 在之间, 相互 interna
8、tional, interconnectmis- 错误地 mislead, misunderstandnon- 不, 非 non-smoker, non-nativere- 再, 重复 rewrite, retellun- 不 unable, unhappy, unpopular(2) 常见后缀后缀 功能 例词-er, -or teacher, worker, visitor-ian musician-ing building, painting, shopping, meaning-ist artist, scientist-ment agreement, government-ness c
9、oldness, happiness, illness-th truth, warmth-tion competition, education, information, invitation-ty构成名词activity, safety-ble, ible comfortable, eatable, enjoyable, possible, probable-al environmental, international, national, traditional-ful careful, helpful, useful-ive active, expensive-less构成形容词ca
10、reless, helpless, homeless, useless-ly friendly, lovely, monthly, weekly-ous dangerous, famous-teen eighteen, fifteen, seventeen-th fifteenth, fifth, fortieth, seventh-ty构成数词forty, sixty, twenty-ly构成副词badly, carefully, carelessly, happily, quickly(3) 派生规律由一个词根加上相应的词缀可以派生出名词、形容词、副词等，掌握派生规律对扩充词汇有很大帮助。
11、例如：由 interest 可以派生出：uninterestinginterest interesting interestinglyinterested uninterested由 help 可以派生出：helpless helplesslyhelp helpful helpfully由 able 可以派生出：enableable unableabilitydisable3. 转化法英语构词法中把一种词性转化为另一种词性而词形不变的方法称作转化法。常见的转化有：(1) 动词转化为名词 Lets talk about it more. 咱们再谈谈这件事吧。 I think wed better
12、 finish the talk now. 我想我们最好现在结束谈话。(2) 名词转化为动词She gave me a cup of water. 她给了我一杯水。You should water the flowers twice a day. 你应该每天给这些花浇两次水。 (3) 形容词转化为名词She was wearing a black dress. 她穿着一条黑色的裙子。The girl in black looks very beautiful. 那个穿黑衣服的女孩看上去很漂亮。Chapter 4 Effective practice, consolidate the knowl
13、edge(训练巩固) Step 6 ExercisesComplete the sentences with the words in the box.hopeful impossible reuse unhealthy wasteful1. Polluted water is _.2. It is _ to throw so much food away.3. If you look after things well, you may _ some of them later.4. It is _ to clean up the whole river in such a short ti
14、me.5. If we pay attention to pollution now, the future will be _.Step 7 Complete the table.Noun Verb Adjective Adverbuseful/uselesshope hopefully / hopelesslypollution water waste usually/unusuallyStep 8 Complete the sentences with the correct form of the words in Activity 3.She was hopeful that her
15、 new job would make her more successful.1. The factory _ the river, and the fish died.2. We often walk in the countryside. It is a(n) _ activity for us.3. Do not use so much water. It is very _.4. To keep the flowers growing, you need to _ them once a day.Step 9 Complete the sentences.A lunchbox is
16、a box that you keep your lunch in.1. A _ is a card that you write on one side of and send to someone by post.2. A _ is a room where you have classes at school.3. A _ is a book that has one or more stories for children.4. A _ is a black board that is used at school for writing on with chalk.Step 10 W
17、ork in pairsLook at the pictures and answer the questions.1. What kinds of things can be recycled?2. How can these things be reused?3. How does this help the environment?4. Have you ever recycled or used things that can be recycled? How?Step 11 Complete the conversation with the correct form of the
18、expressions in the box.be good for throw away turn off worry about Mike: I hear you are off to the Caribbean for a holiday! Lucky you! But arent you _ the pollution that such long plane journey may cause for the environment?Ken: I know, but what can I do about it? Ive already tried my best to protec
19、t the environment. I recycle. I dont _ things if I dont want them any more. I _ the lights when I leave a room. Dont tell me I shouldnt travel by plane any more!Mike: No, of course not. But we can do more to protect the environment. For example, we can help keep the air clean by planting trees. Tree
20、s _ the environment. In this way, we can reduce the harm of pollution.Ken: Good! So I can enjoy my holiday, and when I come back, Ill plant some trees!Mike: Thats the idea! Maybe we can all join in and start a small forest!Step 12 Listening Listen and check () the true sentences.a) Do not throw away
21、 things made of glass, plastic and paper, but recycle them when possible.b) Take a bag when you go shopping.c) It is OK to throw used things away. Looking after them takes a lot of time.d) Turn off lights when you do not need them.e) Ride a bike or walk, and do not often drive your car.f) Paper cups
22、 and bottled drinks make our life easier. We can use them as much as possible.Step 13 Listen again and complete the table.Advice Reasons1. Dont throw away things made of _, but _ them.Throwing things away is wasteful.2. _ your plastic bags when you can and _ with you when you go shopping.Plastic bag
23、s _ recycle.3. Use less electricity and oil to _.4. Dont leave lights on and _. 5. _ and do not often drive your car.Producing electricity and using oil may cause _.Chapter 5 Summary evaluation, leak turnover(总结评价，查漏补缺)Step 14 Around the worldEarth HourRead the passage and answer the questions. When
24、 is Earth Hour held each year? Why do people switch off the lights during Earth Hour? When and where was the first Earth Hour held? Which city take part in the event today?Step 15 Module task: Discussing what you can do about pollutionWork in groups. Decide what kind of pollution you want to talk ab
25、out. Choose a subject that you care about the most. It could be water pollution, air pollution, etc. Find out more information about your subject. Look it up on a website or in a book.If you choose air pollution, lets watch a video about air pollution from a factory.Do you know PM 2.5? Lets know mor
26、e about PM 2.5 and protect the environment from now.作业布置Discuss your subject. Take turns to say what you think about the problems and what can be done. Listen to what others say. If you agree with what they have said, say “I agree”. “Thats true” or “Thats a good point”; if you do not agree with what someone says, say “Im sorry, but I dont agree. I think that 板书设计Unit 3 Language in use构词法1. 合成法2. 派生法3. 转化法课后反思
