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1、Unit 4 Scientists who changed the worldGrammar & Usage (I)Verb-eJ forms as attributives? adverbials and object complements内容分析：本板块提供了两个与单元主题关系紧密的语篇，一篇关于亚历山大弗莱明 发现青霉素的经历，另一篇是关于本杰明富兰克林的风筝实验。教学中，教师 指导学生在学习科学家优异特质的同时，还应重点观察、归纳、理解语篇中动词 -ed形式做定语、状语和宾语补足语的用法；再通过句子、语篇两个层面的巩固 练习，内化新知，从而能够准确，恰当，得体地使用目标语法；最后综合
2、使用动 词-ed形式、动词-ing形式和动词不定式完成描述科学家魏格纳发现“板块漂移” 现象的写作任务。教学目标：By the end of this section, students will be able to:1. understand the meaning of verb-ed forms as attributives, adverbial, and object complements;summarize the grammatical rules of verb-ed forms as attributives, adverbial, and object compleme
3、nts;2. use verb-ed forms, verb-沅g forms and to-infinitives to organize a paragraph based on the notes given.教学重难点：1. To summarize the general rules;To apply the rules correctly and properly.教学过程：Step 1 Lead-inAsk students the questions:1. Who is this man?2. What is his great discovery?Suggested answ
4、er:Alexander Fleming, (born August 6, 1881一died March 11, 1955, London, England), Scottish bacteriologist best known for his discovery of penicillin.Step 2 Exploring the rulesTell the students to read through the science magazine article of part A on page 48 and fill in the following table.Suggested
5、 answers:Tu YouyouAlexander FlemingNationalityChineseScottishDiscoveryQinghaosuPenicilliTime of discovery19721928Use of discoveryTreat malariaTreat wounds/killbacteriaEffect of discoveryBenefited millions of Saved millions of lifepatientsPrizeNobel Prize, 2015Nobel Prize, 1945【设计意图：快速引入话题，了解语篇脉络。】Fi
6、nd the verb-ed forms in the article and fill in the table below. The first one has been done for you.Suggested answers:forms assomething produced by the mouldattributivesthe prepared mindVerb-cd forms as adverbialssurprised by this,.Verb-e/7 forms as objectget its mass productioncomplementsstarted【设
7、计意图：通过总结归纳，让学生识别-ed的不同用法。】Step 3 Working out the rulesThe verb-ed form can be used like an adjective or an adverb, indicating a(n) (1) (active/passive) meaning.The verbJ form can appear before or after a noun or pronoun. It modifies the noun or pronoun like a(n) (2)(relative clause/adverbial clause)
8、.The verb-ed form can be used as an adverbial or an object complement.Possible answer:(1) passive (2) relative clause【设计意图：进一步归纳总结和认识-ed的用法。】Useful expressions: unlikely sourcebe widely considered to beplate板块；碟子；车牌He is aware that.indicatecatch the attention ofmass productionby accidentfar from the
9、 truthFortune favours the prepared mind.运气总是青睐有准备的人。Step 4 Go through aGrammar notes from P100-101.Step 5 ExerciseIdentify the function of the verb-ed forms in the following sentences.1) Tu Youyou has become the first female scientist of the Peoples Republic of China to receive a Nobel Prize, awarde
10、d for her contribution to the fight against malaria.2) Thanks to her discovery of qinghaosu, malaria patients all over the world now have had a greatly increased chance of suvival.3) Born in 1930, in Ningbo, Zhejiang Province, Tu studied medicine at university in Beijing between 1951 and 1955.4) Ins
11、pired by an over 1,600-year-old text about preparing qinghao extract with cold water, Tu redesigned the experiments and tried extracting the herb at a low temperature in order not to damage its effective part.5) Even with large amounts of qinghao extract produced, however, they still face another pr
12、oblem.Possible answers:1. attributive 2. attributive 3. adverbial 4. adverbialobject complementTips:注意下面过去分词作定语的几种情况：1 .单个的过去分词作定语一般放在被修饰的名词之前。We needed much more qualified workers.我们需要更多的合格的工人。My friend is a returned student.我的朋友是个归国的留学生。2 .单个分词也可以作后置定语，用以强调动作。They decided to change the material us
13、ed.他们决定更换使用的材料。3 .过去分词短语作定语要放在被修饰的名词后面，作后置定语，其作用相当于 一个定语从句。The student dressed in white is my daughter.二The student who is dressed in white is my daughter.穿白色衣服的学生是我的女儿。4 .单个过去分词前加一名词或副词，常用连字符将它们连接起来构成一个复合 形容词，放在其修饰的名词前，作前置定语。例如：This is a state-owned factory. 这是一家国营工厂。This is our school-run factory.这是我们的校办工厂。5 .作前置定语的某些动词的过去分词的形式与作谓语或表语的过去分词的形式 往往不一样。light lighted; light litWe lit the candle and the candle lit up the room. 我们点着蜡烛，蜡烛照亮房间。There is a lighted candle on the table.桌上有一支点着的蜡烛Step 6 HomeworkFinish Exercise C on P76.【设计意图：强化知识运用。】教学反思