高中英语 {Unit3 A healthy life Period 3} 优秀教案 新人教版选修6

用心 爱心 专心 1 Period 3 Grammar the Use of It 1 整整体体设设计计 教学内容分析 This teaching period mainly deals with the grammar the use of it The impersonal pronoun it is used frequently in English and has many different functions It can be used in the subject or object position to stand for an infinitive ing form or a clause The impersonal pronoun it can be used to talk about time distance weather etc It can also be used for emphasis In this period we will focus on only part of its usages that is the use of it when the subject of a sentence is a clause an infinitive or the ing form 三维目标设计 KnowledgeKnowledge andand skillsskills 1 To let the students learn the use of it 2 To enable the students to use it correctly and properly ProcessProcess andand methodsmethods 1 To ask the students to read the reading passage again pick out the sentences with the word it in them and write some on the blackboard 2 To ask the students to discover how it is used in various ways 3 To ask the students to do the exercises in Discovering useful structures on Page 21 for students to master the use of it 4 To ask the students to summarize the use of it 5 To ask the students to do the exercises in Using Structures on Page 57 and some other additional exercises for consolidation EmotionEmotion attitudeattitude andand valuevalue 1 To get the students to become interested in grammar learning 2 To develop the students ability of comparing and summarizing 教学重 难点 1 To get the students to master the structure and usages of the pronoun it 2 To enable the students to learn how to use it 教教学学过过程程 StepStep 1 1 RevisionRevision 1 Check the homework exercises 2 Dictate some new words and expressions 3 Translate the following sentences into English 1 她对电视入了迷 2 虽然有暴风雨 我们依旧准点到达了火车站 3 我每次去访问他 他都不在 Suggested answers 用心 爱心 专心 2 1 She is addicted to television 2 We arrived at the station in spite of the storm 3 Every time I call on him he is out StepStep 2 2 WarmingWarming upup Ask the students to reread the passage and find out the sentences with the word it in them For example 1 It is a beautiful day here and I am sitting under the big tree at the end of the garden 2 It seems amazing that at my age I am still fit enough to cycle 20 kilometres in an afternoon 3 Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up 4 It might help you to stop and strengthen your resolve Ask the students to think about the use of it according to the above four sentences StepStep 3 3 GrammarGrammar learninglearning Ask the students to study the following sentences and try to summarize the structure and usages of it 1 The personal pronoun it and the impersonal pronoun it 1 Tom s mother kept telling him that he should work harder but it didn t help 2 Who is knocking at the door It s me 3 It s about five kilometers from here to the railway station 4 It s getting colder and colder every day 2 It is used in the subject or object position 1 She thought it no use telling him about that 2 I remember I made it clear to you that I was not coming 3 It s important to do proper memory work in the study of a foreign language 4 It is no use learning without thinking 5 It is a pity that you didn t see such a good film StepStep 4 4 SummingSumming upup Try to help the students draw the following conclusions 1 It is a very useful word and can be used in many ways 2 The personal pronoun it can substitute something that is mentioned before In some certain situations it can stand for an unidentified person or a baby 3 The impersonal pronoun it can be used to talk about time distance weather etc 4 It can act as a subject or an object while the real subject or 用心 爱心 专心 3 object can be put backwards in the form of an infinitive ing form or a clause StepStep 5 5 GrammarGrammar practicepractice Ask students to do the following exercises 1 Rewrite the sentences using it structures given 1 Giving up smoking is difficult It is 2 Most people believe smoking causes cancer It is believed 3 The night was dark and stormy when the old man started his journey It was a 4 Don t quit on a stressful day It s no use Suggested answers 1 It is difficult to give up smoking 2 It is believed that smoking causes cancer 3 It was a dark and stormy night when the old man started his journey 4 It is no use trying to quit on a stressful day 2 Do the remaining exercises in Exercise 2 in Discovering useful structures on Page 21 3 First ask students to do the exercises individually and then let them discuss and check their answers with their partners and finally give them the correct answers and deal with any problems they might meet StepStep 6 6 GettingGetting moremore aboutabout thethe grammargrammar 1 it 作形式主语的几种句型 It be 形容词 名词 difficult necessary a rule a duty for of sb to do sth It be 形容词 名词 difficult necessary a rule a duty that clause It be 过去分词 said reported known that clause It be 形容词 名词 useless no use no good doing It takes sb some time to do sth It seems appears that clause It seems appears as if clause 2 it 作形式宾语的特殊用法 某些及物动词或短语不能加宾语从句 此时须先用 it 作形式宾语 然后接宾语从句 此种用法常用于 like dislike hate appreciate depend on see to 等后 如 I hate it when people talk with their mouths full You may depend on it that they will support you I ll appreciate it if you close the door for me I like it in the autumn when the weather is clear and bright 3 it 引起的几个易混的时间句型 1 It s time for sb to do sth 和 It s about high time that sb did sth should do sth 例如 It s time for us to go to bed It s about high time that we went should go to bed 用心 爱心 专心 4 注意 It s about high time that 句型中 谓语动词须用虚拟语气 即用动词的 过去式或 should 动词原形 should 不能省略 2 It This That is the first second time that sb has have done sth 和 It This That was the first second time that sb had done sth 例如 This is the fourth time that she has rung you today It was the second time that I had visited the Great Wall last year 3 It will be long hours days years before sb do does sth 和 It was long hours days years before sb did sth 例如 It will be two years before we meet again It was a long time before I got to sleep again last night 4 It is has been years days weeks since sb did sth 和 It was years days weeks since sb had done sth 例如 What was the party like Wonderful It s years since I enjoyed myself so much It was years since I had began to learn English 5 It is was 具体时间点 when clause 例如 It s 6 o clock when I go home from school every day It was five o clock when they finished the job 注意 在本结构中 when 引导的从句是定语从句 具体时间点是先行词 StepStep 7 7 SummingSumming upup Try to help the students draw the following conclusions 1 There are many sentence patterns in English with it in them It has many functions 2 When it acts as a subject or an object the real subject or object can appear in the form of an infinitive ing form or a clause The impersonal pronoun it can be used to talk about time distance weather etc StepStep 8 8 PlayingPlaying a a gamegame 1 Get students to form groups of 6 2 Let students play the game What is it Spend some time making up clues to identify several objects illnesses habits in this unit Then read your clues to your partner and see if he she can identify them Choose the best ones to read to the class EXAMPLES It is a bad habit for both males and females It is something you shouldn t start because you will be addicted to it It is something which is illegal It is a very expensive habit and so it will waste your money StepStep 9 9 ClosingClosing downdown byby a a quizquiz Show students the following on the screen or give out test papers to them 1 It took us over an hour along the street A walk B to walk 用心 爱心 专心 5 C walking D walked 2 I think it a great honor to visit your country A to invite B inviting C having invited D to be invited 3 Many people now make a rule to buy cards for their friends before Christmas A themselves B it C that D this 4 is very clear to everyone that he is round and tall like a tree A This B What C That D It 5 In the United States bus travel doesn t cost much as train travel A don t they B does it C do they D doesn t it 6 Someone is at the door who is A this B that C it D he 7 raining hard for three hours without stopping A It is B