Unit 3 Computers-Grammar how to compare things by using the comparative of adjectives-ppt课件-(含教案+视频+素材)-市级公开课-牛津深圳版八上(编号：90160).zip

The comparative of adjectives(形容词比较级形容词比较级)is used to compare two people or thingsLets go shopping!Look and Compare The camera is cheaper. The computer screen is smaller. Mothers skirt is longer. Sisters hair is shorter.How to form the comparative of adjectivesRule 1: 大多数单音节大多数单音节词，直接加词，直接加-er Brother is fatter. Brothers T-shirt is bigger. Sister is thinner.How to form the comparative of adjectivesRule 2: 以一个辅音字母结尾的重读闭音节词，以一个辅音字母结尾的重读闭音节词，先双写这个辅音字母，再加先双写这个辅音字母，再加-erPhone WorldA month agoId like a phone with a wide screen.Height:5.44 inches Height:6.22 inchesWidth:2.64 inches Width:3.06 inchesWeight: 4.55 ounces Weight:6.07 ouncesiphone6iphone6 PlusRule 3: 以以-e结尾的词，直接加结尾的词，直接加-riphone6iphone6 PlusHeight:5.44 inches Height:6.22 inchesWidth:2.64 inches Width:3.06 inchesWeight: 4.55 ounces Weight:6.07 ouncesiphone6iphone6 PlusIm happier because my sister is happy.Rule 4:以以“辅音字母辅音字母+y”结尾的词，变结尾的词，变y为为i，再加，再加-er Price￥4,600￥7,500I think a laptop with a bigger screen is more useful.Rule 5: 大多数双音节或多音节词，大多数双音节或多音节词，more+原级原级大多数单音节词大多数单音节词直接直接加加_cheapcheapersmallsmaller以以一一个个辅辅音音字字母母结结尾尾的的重读闭音节词重读闭音节词先先双双写写_，再再加加_fatfatterbigbigger以以-e结尾的词结尾的词直接直接加加_largelargerwidewider以以“辅辅音音字字母母+y”结结尾尾的的词词变变y为为_，再再加加_heavyheaviereasyeasier大大多多数数双双音音节节或或多多音音节节词词more+_popularmore popularusefulmore usefulThe comparative of adjectives-er这个辅音字母这个辅音字母-er-ri-er原级原级EX. Complete the conversation below with the comparative of the adjectives from the box.Salesman: Can I help you, sir?Father: Yes, I need a suitcase. Can you tell me about these two?Salesman: Sure. The red one costs￥2500, and its made of leather.Father : I see. The red one is _ than the black one. What about the weight? Which one is_?more expensive lighter Salesman: The black one. Its made of plastic. Try them, sir.Father: Youre right. The red one is _ than the black one, and its _ than the black one. Salesman: Do you have a lot of things to carry? Father : Yes, I do. Ill have the black one because its _ than the red one. Salesman: Thank you very much, sir.heavier smaller bigger I want to use the new laptop!Choose the right answer1. Bob is five minutes late for school. His teacher says, “ Be _,next time.” A. earlier B. later C. sooner D. earliest2. Ben is _ than David.A. patient B. more patient C. patienter D. much patient3. Tim is _ than Jack.A. funny B. much funny C. funnier D. funniest4. My bike is _ but his bike is _.A. new; new B. new; newer C. new; newest D. newer; newest5. This book is _ than that one. A. much interesting B. interestinger C. more interesting D. better interestingStructure结构结构形容词比较级形容词比较级+than “比比更更”Write at least three sentences with the help of the structure to compare them. He Changlong looks like Brother, but there are still some differences between them. He has smaller eyes than Brother. _ We like both of them because they are kind people.大多数单音节词大多数单音节词直接加直接加-ercheapcheapersmallsmaller以以一一个个辅辅音音字字母母结结尾尾的的重读闭音节词重读闭音节词先先双双写写这这个个辅辅音音字字母母，再加，再加-erfatfatterbigbigger以以-e结尾的词结尾的词直接加直接加-rlargelargerwidewider以以“辅辅音音字字母母+y”结结尾尾的的词词变变y为为i，再加，再加-er heavyheaviereasyeasier大大多多数数双双音音节节或或多多音音节节词词more+原级原级popularmore popularusefulmore usefulThe comparative of adjectivesStructure: 形容词比较级形容词比较级+than “比比更更”Homework Compare you and one of your classmates.Thank you for listening!1学情分析：学情分析：学生小学阶段已经接触过形容词比较级，本课将更系统地汇总形容词比较级的构成形式。为了避免语法的枯燥，知识点将会设置在购物的情景语境中学习，教会学生运用比较级对生活人物和事物进行比较，又因本单元的主题为 Computers，购物清单也主要以电子产品为主。教学目标：教学目标：1. 认知目标：认知目标： 1）引导学生归纳形容词的比较级构成形式。2）学生能通过观察总结形容词多与 than 一起用的结构2.2. 能力目标：能力目标：1）学生在所提供的语境下理解并会选用形容词的比较级。3 3情感目标：情感目标：学生能用所学的形容词比较级对生活事物和人物进行比较。教学流程设计：教学流程设计：Aims: (1)To compare two people or things in daily life with the comparative of adjectives.(2) To know how to form the comparative of adjectives.(3) To use the comparative of adjectives together with than.Materials: Multi-media Type of the lesson: GrammarTime PhaseSpecific aimsTeachers activityStudents activitySkills involved5minWarm-upTo arouse the students interest.1.Guide Ss to describe their classmate He Changlong with adjectives and write them down.2.Lead Ss to the comparative of adjectives.1.Describe their classmate He Changlong with adjectives.2. Compare He with a boy.Speaking25minsRule 1Lead Ss to work out the rule to form the comparative of adjectivesLead Ss to the scene of shopping for computers.Look at two pictures and compare them. 2.Work out Rule 1Summarizing10minsRule2&3Lead Ss to work out the rule to form the comparative of adjectivesLead Ss to the scene of shopping for mobile phones.Work out Rule 2 and Rule 3 by helping Father buy a new mobile phone.Summarizing7mins Rule4&5Lead Ss to work out the rule to form the comparative of adjectivesLead Ss to the scene of shopping for a laptop.Work out Rule 4 and Rule 5 by helping Father buy a laptop.Summarizing3minsReviewReview what we have learntHelp Ss to reviewComplete the form of rules by filling in the blanks.5minsExerciseConsolidate what we have learntHelp Ss to finish the relevant exercises Finishing different types of exercises.Consolidation5 minsStructureKnow that the the comparative of adjectives is often used with than.Show sentences with the structure1.Read and summarize the structure.2.Compare He and another classmate with the adjectives written down 1Handout of the Comparative of AdjectivesClass:_Name:_ No._大多数单音节词大多数单音节词直接加直接加_cheapcheapersmallsmaller以一个辅音字母结以一个辅音字母结尾的重读闭音节词尾的重读闭音节词先双写先双写_，再加再加_fatfatterbigbigger以以-e 结尾的词结尾的词直接加直接加_largelargerwidewider以以“辅音字母辅音字母+y”结结尾的词尾的词变变y为为_，再加再加_ heavyheaviereasyeasier大多数双音节或多大多数双音节或多音节词音节词more+_popularmore popularusefulmore useful2Ex1: Complete the conversation below with the comparative of the adjectives from the box.Salesman: Can I help you, sir?Father: Yes, I need a suitcase. Can you tell me about these two?Salesman: Sure. The red one costs￥2500, and its made of leather.Father : I see. The red one is _ than the black one. What about the weight? Which one is_?Salesman: The black one. Its made of plastic. Try them, sir.Father: Youre right. The red one is _ than the balck one, and its _ than the black one.Salesman: Do you have a lot of things to carry?Father : Yes, I do. Ill have the black one because its _ than the red one.3Salesman: Thank you very much, sir.Ex2: Choose the right answers1. Bob is five minutes late for school. His teacher says, “ Be _,next time.” A. earlier B. later C. sooner D. earliest2. Ben is _ than David.A. patient B. more patient C. patienter D. much patient3. Tim is _ than Jack.A. funny B. much funny C. funnier D. funniest4. My bike is _ but his bike is _.A. new; new B. new; newer C. new; newest D. newer; newest5. This book is _ than that one.A. much interesting B. interestinger C. more interesting D. better interestingEx3: _4