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Module 12 Save our world Unit 3 Language in use 教学目标 【知识目标】 1.正确运用本模块的词汇及短语,rest, book, baggage, straight, check in 2、能够掌握主谓一致的规则及用法。 【能力目标】 能运用本模块所学的知识叙述、形容夏令营的特点，相关要求及活动。自己的旅游经历。 【情感态度目标】 能够谈论自己的一些环保措施，并劝说人们增强环保意识。 教学重难点 【教学重点】 1、能够掌握主谓一致的规则及用法。 2、能运用本模块所学的知识叙述、形容夏令营的特点，相关要求及活动。 【教学难点】 掌握英语中常用的前缀、后缀 教学过程 Step 1 Languagepractice Reusemeans “use again”. Thoughpollution is heavy now, I don’t think it’s hopeless. Step 2 Make anew words. Join the parts of words in Box A with the words in Box B. You needto use some of the parts more than once. A –able -ful im- -less re- un- B care collect hope possible use usual wanted waste Step 3 Now workin groups. Play the guessing game English for Fun. Englishfor Fun 1. full of care ____________ 2. can be collected ____________ 3.full of hope ____________ 4.without any hope ____________ 5.not possible ____________ 6.not usual ____________ 7.without any use ____________ 8.use again ____________ 9.not wanted ____________ 10.making a lot of waste ____________ Step 4 Learningto learn Sometimesif you know the meaning of the parts of a word, you can work out the meaning ofthe whole word. re+ new + able; re = again, able = can be renewable = can be new again 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-aged,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, dislike | | en- | 使……处于某种状态 | enable, enrich | | im-, in- | 不 | impossible, impatient, inexpensive | | inter- | 在……之间, 相互 | international, interconnect | | mis- | 错误地 | mislead, misunderstand | | non- | 不, 非 | non-smoker, non-native | | re- | 再, 重复 | rewrite, retell | | un- | 不 | unable, unhappy, unpopular |
(2)常见后缀 | 后缀 | 功能 | 例词 | | -er, -or | 构成名词 | teacher, worker, visitor | | -ian | musician | | -ing | building, painting, shopping, meaning | | -ist | artist, scientist | | -ment | agreement, government | | -ness | coldness, happiness, illness | | -th | truth, warmth | | -tion | competition, education, information, invitation | | -ty | activity, safety | | -ble, ible | 构成形容词 | comfortable, eatable, enjoyable, possible, probable | | -al | environmental, international, national, traditional | | -ful | careful, helpful, useful | | -ive | active, expensive | | -less | careless, helpless, homeless, useless | | | friendly, lovely, monthly, weekly | | | | -teen | 构成数词 | eighteen, fifteen, seventeen | | -th | fifteenth, fifth, fortieth, seventh | | -ty | 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。例如： 由 interest 可以派生出： uninteresting interest — interesting —interestingly interested — uninterested 由 help 可以派生出： helpless — helplessly help — helpful —helpfully 由 able 可以派生出： enable able unable ability disable 3. 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 — Let’s talk about it more. 咱们再谈谈这件事吧。 — I think we’d better 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。 Step 6 Exercises Complete the sentences withthe words in the box. hopeful impossible reuse unhealthy wasteful 1. Polluted water is ____________. 2. It is _________ to throw so much food away. 3. If you look afterthings well, you may ________ some of them later. 4. It is ___________ to clean up the whole river insuch a short time. 5. If we pay attentionto pollution now, the future will be __________. Step 7 Complete the table. | Noun | Verb | Adjective | Adverb | | | | useful/useless | | | hope | | | hopefully / hopelessly | | pollution | | | —— | | water | | —— | —— | | waste | | | | | —— | —— | | usually/unusually |
Step 8 Complete thesentences with the correct form of the words in Activity 3. She was hopeful that her new job would make her moresuccessful.
- The factory ___________ the river, and the fish died.
2. We often walk inthe countryside. It is a(n) _______ activity for us. 3. Do not use so much water. It is very __________. 4. To keep theflowers growing, you need to _________ them once a day. Step 9 Complete the sentences. A lunchbox is a box that you keep your lunch in. 1. A ___________ is a card that you write onone side of and send to someone by post. 2. A ___________ is aroom where you have classes at school. 3. A ___________ is abook that has one or more stories for children. 4. A ____________ is ablack board that is used at school for writing on with chalk. Step 10 Work in pairs Look at the pictures andanswer the questions.
- What kinds of things can be recycled?
2. How can these thingsbe reused? 3. How does this help theenvironment? 4. Have you ever recycledor used things that can be recycled? How? Step 11 Complete the conversation with the correct form of theexpressions in the box. Step 12 Listening Listen and check (√) the true sentences. a)Do not throw away thingsmade 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 oftime. 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 and bottled drinks make our life easier. We can use themas much as possible. Step 13 Listen again and complete the table. | Advice | Reasons | | 1. Don’t 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 bags __________ recycle. | | 3. Use less electricity and oil to _________. 4. Don’t leave lights on and __________. 5. ________ and do not often drive your car. | Producing electricity and using oil may cause ___________. |
Step 14 Around the world Earth Hour Read the passage and answer the questions. Ø When is Earth Hour held each year? Ø Why do people switch off the lights during Earth Hour? Ø When and where was the first Earth Hour held? Ø Which city take part in the event today? Step 15 Module task: Discussing what you can do about pollution Work in groups. Decide what kind of pollution you want to talk about. Ø Choose a subject that you care about the most. It could be waterpollution, air pollution, etc. Ø Find out more information about your subject. Look it up on a websiteor in a book. If you choose air pollution, let’s watch a video about air pollutionfrom a factory. Do you know PM 2.5? Let’s know more about PM 2.5 and protect theenvironment from now. Step 16 Discussion Discuss your subject. • Take turns to say whatyou think about the problems and what can be done. • Listen to what otherssay. If you agree with what they have said, say “I agree”. “That’s true” or“That’s a good point”; if you do not agree with what someone says, say “I’msorry, but I don’t agree. I think that …” 课堂作业 Present your group ideas to the whole class. 教学反思
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发表于 2021-4-26 20:11:16
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