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八年级英语(下)Unit7第4课时Unit 7 Whats the highest mountain in the world?Section B 1a1d一、【教材分析】目标来源：21世纪教育网知识目标21世纪教育网1. 学习并掌握下列单词：cm(centimeter), weigh, birth, adult2. 能准确使用以下常用表达：at birth, live up to, weighs 5,000 kilos, standing on two legs, weighs many times more than, a baby panda, an adult panda, 来源：21世纪教育网3. 能熟练掌握并使用下列重点句式：1）A baby panda cannot see ? 2）At birth, a baby panda is about 20 cm long. 3) An adult panda weighs many times more than a baby panda.21世纪教育网水平目标能够掌握课文中出现的重点句子，学会表达事物之间的倍数关系。情感目标培养学生热爱大自然，保护环境的意识。教学重点Talk about geography and nature .教学难点准确使用本课时常用表达；听力训练。教学方法情景教学法；任务型教学法。二、【教学流程】环节师生活动I. Preparation 准备1检查单词预习情况：教师结合学生读的状况，适当领读，并协助学生正音。cm(centimeter), weigh(weight), birth(born,birthday),(an) adult2复习检查 通过检查“学案”中“新知预习”内容，检查预习效果。英汉互译：1. 350米高 2. 重5公斤 3. a baby panda 4. an adult panda 5. 活到100岁 6. eat much more 7. 在出生时 8.两腿站立 II. Presentation表现1. Learning tasks “示标定向” 学习并掌握下列单词：cm(centimeter), weigh, birth, adult能准确使用以下常用表达：at birth, live up to, weighs 5,000 kilos, standing on two legs, weighs many times more than, a baby panda, an adult panda, 能熟练掌握并使用下列重点句式：1）A baby panda cannot see ? 2）At birth, a baby panda is about 20 cm long. 3) An adult panda weighs many times more than a baby panda.2. Leading-in“导入新课”1a 1. 应用所给信息，比较图中两种动物。如：This elephant weighs many times more than this panda.(200 cm taller/shorter, weigh much more/less, eat much more/less, eat many times more)2. 小组讨论： Compare the panda and the elephant.3. Make more sentences using the information in 1a. 如：The elephant is 350 cm tall ,and the panda is 150 cm tall. The elephant eats 150 kilos of food a day, and the panda eats 10 kilos of food a day.III. Practice 操练1. 1b Listen and check() the numbers you hear.领读数字读法：120 one hundred and twenty ,0.1 zero point one 核对答案：100, 20, 0.1, 0.2, 1502. 1c Listen again and complete the sentences. 核对答案：1. 0.1 to 0.2 kilos 2. 15 cm long 3. pink , no teeth4. 20 to 30 years3. 应用听力材料，小组准备，然后班内讨论熊猫,最后由各组成员展示:A: A baby panda can not see.B: An adult panda weighs many times more than a baby panda.4. Language points:1) At birth, a baby panda is aboutbirth v. 出生 at birth 出生时如： Mans nature at birth is good. 人之初，性本善。give birth to 生（孩子）；产生如： My aunt gave birth to a beautiful baby girl yesterday. 昨天我婶婶生下一个漂亮的小女孩。2) A panda can live up to 20 to 30 years.up to 到达（数量，程度等）；不多于,如：In some area of Africa, children get educated up to 12 years old. 在非洲的一些地区，孩子最多受教育到12岁。3）An adult panda weighs many times more than a baby panda. 一只成年熊猫比一只熊猫宝宝重很多倍。weigh 意为重、有重、给称重，其名词形式为weight,有短语in weight。The box weighs 33 kg.=The box is 33 kg in weight.这个箱子33千克重。many times more than 用以表示倍数，类似短语还有：many/some/twice more than ,many/some/twice less than 如：I have twice more books than my sister我的书比我姐姐的多两倍。IV. Consolidation巩固应用所给信息造句，讨论下列动物的生活习性：Here are some facts about tiger and rabbit, use the following information to make sentences.Tiger: is 150 cm tall weighs 300 kilos eats meat sleeps 15 hours a day.Rabbit: is 15 cm tall weighs 2 kilos eats leaves sleeps 5 hours a day. 如：I think the tiger is heavier than the rabbit .The tiger weighs 300 kilos ,but the rabbit weighs only 2 kilos.V. Examination检测1. 引导学生小结梳理知识框架、规律、方法，并对合作小组当堂学习情况进行总结评价，巩固学生所获得的语言知识和经验，让学生在评价中反思，在反思中进步。Ask one of the students to say what they have learnt.1)words & phrases cm(centimeter), weigh, birth, adultat birth, live up to, weighs 5,000 kilos, standing on two legs, weighs many times more than, a baby panda, an adult panda, 2) 数量单位表达法，倍数表达法。2. 当堂检测(见学案)：教师要随堂进行评价，批改可以由学习小组内互批、组间互批、集体订正等方法，批阅后教师要统计达标情况,收集反馈信息，当堂矫正补救。 VI. Assignment作业1. 口头作业：利用早读，朗读或背诵录音材料，体会过去进行时的含义和用法。2. 书面作业：1）记忆所学单词、短语或重点句型。2）Finish off the exercises in tongbuxuexi.3. Preview the new words of 2a-2e.三、【板书设计】Unit 7 Whats the highest mountain in the world?Section B 1a1d1）A baby panda cannot see ? 2）At birth, a baby panda is about 20 cm long. 3) An adult panda weighs many times more than a baby panda.四、【教后反思】能够掌握课文中出现的重点句子，学会表达事物之间的倍数关系。
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