Unit 7 Section B (1a～1d) 课件 -2024-2025学年英语人教版八年级下册

Unit 7 What's the highest mountain in the world? Section B (1a~1d) 23002 1 1.学习目标 3.重点探究 2.自主学习 学习导航 5.当堂检测 6.课堂总结 4.拓展提升 23002 2 新课导入 Let's watch a growth record of a baby panda. 学习目标 1.能记住并能运用下列单词及短语:weigh, birth, adult, at birth, up to 2.能正确表达倍数和比较程度 3.能通过听说活动，了解大熊猫及其幼崽 4 自主学习 New words& phrases 1.厘米 _______________________ 2.v. 重量是......；称......的重量 _______________________ 3. n. 出生；诞生 _______________________ 4.出生时 _______________________ 5.到达（某数量、程度等）； _______________________ 6.adj. 成年的；成人的 _______________________ cm (= centimeter) weigh at birth birth up to adult 23002 5 重点探究 大象是现存世界最大的陆栖动物，主要外部特征为柔韧而肌肉发达的长鼻和扇大的耳朵，具缠卷的功能，是象自卫和取食的有力工具。象肩高约2米，体重3～7吨。非洲象耳大，体型较大，体重较重。亚洲象耳小，身体较小，体重较轻。 属于食肉目、熊科、大熊猫亚科和大熊猫属唯一的哺乳动物，头躯长1.2-1.8米，尾长10-12厘米。体重80-120千克，最重可达180千克，体色为黑白两色，它有着圆圆的脸颊，大大的黑眼圈，胖嘟嘟的身体，标志性的内八字的行走方式，也有解剖刀般锋利的爪子。 Can you say more about elephants and pandas? How tall...? How heavy...? How much food ... eat every day? How heavy be + 主语?”对重量提问。 height weight food Do you know? Elephant is 350 cm tall weighs 5,000 kilos eats 150 kilos of food a day Panda is 150 cm tall (standing on two legs) weighs 100 kilos eats 10 kilos of food a day 1a Compare facts about these two animals. Using the language in the box to help you make sentences. Example sentence: 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) comparison Panda — is 150 cm tall — weighs 100 kilos — eats 10 kilos of food a day Elephant — is 350 cm tall — weighs 5,000 kilos — eats 150 kilos of food a day height 1)The elephant is 200 cm taller than the panda. 2)The elephant is much/a lot taller than the panda. 1)The panda is 200 cm shorter than the elephant. 2)The panda is much/ a lot shorter than the elephant. weight food 1)The elephant weighs more than the panda. 2)The elephant weighs many times more than the panda. 1)The panda weighs less than the elephant. 2)The panda weighs many times less than the elephant. The elephant eats 15 times more than the panda. The panda eats 15 times less than the elephant. many times more/less than 意为“比……多/少很多倍” What's this? mouse? puppy? kitten? I'm a baby panda. 大熊猫最奇特的一点是新生儿在出生时相当的不成熟，体重仅是它母亲体重的0.1%，平均为145 克左右，约为成年的千分之一。照顾孩子是一项非常艰巨的任务，通常历时18个月，有时长达两年，直到她的下一个孩子出生。 a baby panda an adult panda adult 成年 At birth, the baby panda is so small. 出生时 = when sb was born, 在句中常作时间状语 A baby panda weighs many times less than an adult panda. How much does a baby panda weigh at birth? Pre-listening Can you read the numbers below? 0.1 100 16 20 50 120 0.2 150 one hundred and twenty fifty twenty one hundred one hundred and fifty sixteen zero point one zero point two 1b Listen and check (√) the numbers you hear. _____100 _____16 _____20 _____50 _____120 _____0.1 _____0.2 _____ 150 √ √ √ √ √ 1c Listen again and complete the sentences. 1. At birth, a baby panda is about _______ to ________ kilos. 2. At birth, a baby panda is about _______ cm long. 3. A baby panda is not black. It is _______ and it has no _______. 4. A panda can live up to ________ to ________ years. 0.1 0.2 15 pink teeth 20 30 Listen again and fill in the blanks. Teacher:Do you have any questions about____________? Boy 1:Are they much　　　　than an adult panda? Teacher:Yes.When they’re　　　　,they only weigh about 0.1 to 0.2 _________. Boy 1:Wow,that’s small!I know an________ panda weighs many times more than a　　　　. Teacher:That’s right.And the adult pandas weigh around　　　　 kilos. baby pandas smaller born kilos adult baby 100 Boy 2:What about the size of a baby panda? How small is it? Teacher:At _______,it’s only around 15 cm______,but an adult panda is around_______ cm long. Girl:Is a baby panda also_______and_______? Teacher:No,you would never guess! A baby panda is pink and it cannot _______.It also doesn’t have any _________. Girl:How long can pandas live? Teacher:They can _______ up to 20 to 30 years. see teeth live long black white birth 150 1d Take turns telling your classmates about pandas. A baby panda cannot see. An adult panda weighs many times more than a baby panda. 拓展提升 Language points 1.This elephant weighs many times more than this panda. 这只大象比这只大熊猫重很多倍。 1) weigh既可作及物动词，表“称重”，也可作连系动词，表“有……重”； 对重量提问时，常用句型有：“How much do / does / did + 主语 + weigh?” 或“How heavy be + 主语?”。 其名词形式为weight。常用短语：in weight在体重方面。 e.g. I weighed the box. It weighs 20 kg. 我称了这个盒子，它重20公斤。 The boy weighs 20 kg.＝The boy is 20 kg in weight.这个男孩重20公斤。 2) 英语中“倍数”的表达方式：①.表示 “A 比 B 长（宽、高、大、重等）N 倍”时，其结构为“A ＋ be ＋ 基数词（N＋1）＋times ＋ 形容词比较级 ＋ than ＋ B ”。 e.g. This hall is five times bigger than our classroom. 这个大厅比我们的教室大五倍。 He runs three times faster than his brother. 他跑得比他弟弟快三倍。 【注意】：“两倍”可用twice表示。 ②.表示“A 的长度（宽度，高度，大小，重量等）是 B 的 N 倍”，可用 “A ＋ be ＋ 基数词（N）＋times ＋ as ＋ 形容词原级 ＋ as ＋ B”结构。 e.g. 这棵树是那棵树的三倍高。 This tree is three times as tall as that one. 他父亲的年纪有他两倍大。 His father is twice as old as he. ③表示“A的高度/重量/长度……是B的多少倍”。“A+谓语动词+倍数+the height / weight / length …+of + B ” e.g. His father is twice the age of he. 他父亲的年纪有他两倍大。 This tree is three times the length of that one. 这棵树是那棵树的三倍高。 2. At birth, a baby panda is about 0.1 to 0.2 kilos. birth v. 出生 at birth 出生时 e.g. Man’s nature at birth is good.人之初，性本善。 give birth to… 生（孩子）；产生 e.g. 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。 3. A panda can live up to 20 to 30 years. up to 到达（某数量、程度等）；至多有；不多于。其中to为介词， 后接名词作宾语。 e.g. There are up to 2,000 students in our school. 我们学校有多达两千名学生。 The old man can live up to ninety years. 这位老人能活到九十岁。 【注意】：up to还可表示“（体力或智力上）能胜任；适于（做某事）”， 后可接名词或动词作宾语。常用于否定句。 当堂检测 Ⅰ. 根据中文意思或首字母提示，用单词的适当形式填空，每空一词。 1. Not only a________(成人) but also children have stress in their life. 2. —How heavy is this bag of rice? —It w________ about 5 kilos. 3. Qomolangma is 8,844.43 meters high. It’s h______than any other mountain in the world. 4. China is one of the oldest c________in the world. 5. The panda eats 10 k______ of food a day. dults eighs igher ountries ilos Ⅱ. 根据汉语意思完成句子。 1．他爸爸的体重是他的三倍。 His father weighs him. 2．将来人们可以活到200岁。 People will 200 years. 3．这棵树比那棵高两米。 The tree is than that one. 4．它每天吃掉两公斤食物。 It eats two kilos of food ． 5．熊猫可以两条腿站立。 Pandas can stand ． three times as much as live up to two meters taller a day on two legs 课堂总结 Unit 7 Section B (1a~1d) 倍数的三种表达方法： 表示“A 的长度（宽度，高度，大小，重量等）是 B 的 N 倍”，可用：___________________________________________________________ 表示“A 的长度（宽度，高度，大小，重量等）是 B 的 N 倍”,可用： ___________________________________________________________ 表示“A的高度/重量/长度……是B的多少倍”，可用： ___________________________________________________________ 重点单词、短语： __________________________________ __________________________________ __________________________________ weigh birth adult at birth many times up to kilos of standing on two legs “A ＋ be ＋ 基数词（N）＋times ＋ as ＋ 形容词原级 ＋ as ＋ B” “A ＋ be ＋ 基数词（N）＋times ＋ as ＋ 形容词原级 ＋ as ＋ B” “A+谓语动词+倍数+the height / weight / length …+of + B ” Lavf57.83.100 曲目 14 tailuowang 未知唱片集 (2014-1-11 21:35:02), track 6 2014 66846.055 XXX - XXX - 曲目 15 tailuowang 未知唱片集 (2014-1-11 21:35:02), track 7 2014 66297.43 XXX - XXX - $$