Unit 4 Our World-Topic 1 What's the strongest animal on the farm -Section A-ppt课件-(含教案)-省级公开课-仁爱科普版八年级上册(编号：602fa).zip

Teaching aims: 1. Master the changing rules and the use of the comparative degrees of adjectives. 掌握形容词比较级的变化规则和使用。 2. Talk about the beautiful scenery of nature. 谈论美丽的自然风景。 3. Enhance the consciousness of enjoying nature and protecting the environment. 提高保护环境的意识，享受大自然。 tall thin long hair big eyes short fat short hair small eyes Her mother is young.She is younger. young 的比较级 She is _ than her mother. younger Yao Ming is _ than Pan Changjiang. Pan Changjiang is _ than Yao Ming. taller shorter tall - taller short - shorter Yao Ming is tall. Pan Changjiang is short. Liu Huan is _ than Gong Hanlin. Gong Hanlin is _ than Liu Huan. . fatter thinner fat - fatter thin - thinner Liu Huan is fat.Gong Hanlin is thin. I am _ than before. happier happy - happier I am happy . The rabbit is _ than the turtle.later late - later She is younger than her mother. Yao Ming is taller than Pan Changjiang. Pan Changjiang is shorter than Yao Ming. Liu Huan is fatter than Gong Hanlin. Gong Hanlin is thinner than Liu Huan. I am happier than before. The rabbit is later than the turtle. . Competition Discussion She is younger than her mother. Yao Ming is taller than Pan Changjiang. Pan Changjiang is shorter than Yao Ming. Liu Huan is fatter than Gong Hanlin. Gong Hanlin is thinner than Liu Huan. I am happier than before. The rabbit is later than the turtle Discuss with your partner and find out the sentence structure of the comparative degrees of adjective. tall fat late long thin nice happy young ugly lazy + ere + r 双写+er变y为i+er tall fat late long thin nice happy young ugly lazy 火眼金睛：将下列单词分类，并小组总结火眼金睛：将下列单词分类，并小组总结 形容词比较级的变化规则：形容词比较级的变化规则： 单音节及部分双音节形容词比较级（单音节及部分双音节形容词比较级（- er）的规则：）的规则： 1. 1. 一般在词尾直接加一般在词尾直接加er:er: talltalltalltallerer 2. 2. 以以e e 结尾的单词直接加结尾的单词直接加r: r: latelatelatelater r 3. 3. 以辅音字母加以辅音字母加y y结尾的单词，把结尾的单词，把y y改成改成i,i, 再加再加 erer : : busybusbusybusierier 以重读闭音节结尾，且末尾只有一个辅音字母的单以重读闭音节结尾，且末尾只有一个辅音字母的单 词，双写末尾的辅音字母，再加词，双写末尾的辅音字母，再加erer : : bigbigbigbiggerger The horse is bigger than the hen . The hen is smaller than the horse . Practice big small The pig is fatter than the duck. The duck is thinner than the pig . fat thin The cow is stronger than the mouse. strong Does Wang Wei like the countryside or the city? Now, watch the flash of 1a, and find out the answer.视频视频1a-P81 1a 1bListenListen toto 1a1a againagain andand followfollow it,it, thenthen checkcheck thethe wordswords youyou hear.hear. _ fresher _ busier _ bluer _ taller _ bigger _ clearer _ nicer _ quieter _ noisier 录音录音1a-P81 Read 1a with your partner, and then find out the key points. 1.think about = think of (思考，考虑 ) 2. much 可以修饰形容词的比较级。 3. That must be fine! Wang Wei likes the countryside very much because he thinks the air is _, the sky is _ and the rivers are _ there. Michael thinks the countryside is much _ than the city, too, so people can enjoy the beauties of nature. Wang Wei goes to the countryside every year for his summer holiday. fresher blue r clearer quieter AskAsk somesome studentsstudents toto readread thethe dialogdialog againagain andand otherother studentsstudents fillfill inin thethe blanks.blanks. For example: The air in the countryside is fresher than that in the city. (sky air river rode tree.) Make a report Discuss with your partner, and compare the countryside with city, then make a report. 政府决定奖励每位市民一套新房，你会 选择在城市还是乡村，并请说出原因。 （至少写出3句话，可以从以下几方面阐 述 ：空气 树木 道路 河水 等等） 开头已给出： I want to live in , because Homework 1. recite 1a. 2. finish the exercise book. 3.write a passage about your hometown, using the comparative degrees of adjectives . Unit 4 Our World Topic1 Plants and animals are important to us Section A I . Teaching aims and demands 教学目标教学目标 1.Master the changing rules and the use of the comparative degrees of adjectives. 2. Talk about the beautiful scenery of nature. 3.Enhance the consciousness of enjoying nature and protecting the environment. . Teaching aids 教具教具 Multi-media computer and tape. . Teaching procedure:教学过程教学过程 Step 1: Review: Let a student make a report about her trip and then look at the picture about her，try to say what does she look like？ (Review some adjectives: tall、thin、fat、big) Step 2 : Lead in: 1. 利用图片，学习形容词比较级，导入新课。 T: Who are they? Ss: They are Yao Ming and Jordon Jordon is tall. Yao Ming is taller. Yao Ming is taller than Jordon. (板书并领读，让学生观察 tall 的比较级。) 以此类推，学习并领读 shorter、later、happier、fatter、thinner. 2. T: Lets have a competition between the boys and the girls about the sentences that we have learned，who can read them loudly and clearly，who will be the winner. (男女生竞赛读新授句型) 3. Discuss the use of the comparative degrees of adjectives. (小组合作讨论总结得出：be +adj.比较级+than ) 4. Play a game: put the adjectives into different groups，and then sum up the changing rules of the comparative degrees of adjectives. 5. Practice (grammar focus) Show students more pictures，let them talk about the sentences by using the comparative degrees of adjectives. Step 3: Presentation 1. T: Look at the picture. Michael and Wang Wei are talking about the life in the countryside. Now listen to the tape and try to answer the following questions: Who likes the countryside? Why? (核对答案。) 2. (再放 1a 录音，让学生跟读 1a，注意语音语调。) T: Listen to1a and read after the tape. Pay attention to the pronunciation and intonation. Step 4: Consolidation 1. (分角色朗读课文。) T: Now Ill divide the class into two groups. Group A acts as Michael，and Group B acts as Wang Wei. Then change the roles. 2 . (根据 1a，完成 1c。) T: Now finish 1c according to1a. (核对答案。) Step 5: Practice T: Discuss with your partner, and compare the countryside with city， then make a report. (通过多媒体呈现农村与城市的图片，进一步练习形容词比较级。 ) Step 6: Project 1、多媒体展示：告诉大家一个好消息，政府决定奖励每位市 民一套新房，你会选择在城市还是乡村，并请说出原因。让学 生用所学新词的比较级写一篇短文。通过写作进一步练习和运 用形容词的比较级，培养学生综合运用语言的能力。 2、小组派出代表，进行展示。 Step 7: Homework 画出自己所喜爱的动物，运用比较级写一篇短文对其进行描 述，并表达自己的喜爱程度及原因。