【公开课】人教新目标版八下Unit 7《What's the highest mountain in the world？》SectionB1a-1d优质课件+素材包

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人教版 八年级下册SectionB 1a-1dUnit 7 What’s the highest mountain in the world?1.学习本课时新单词、短语及句型：单词：weigh, birth, adult 短语：at birth, live up to句型：An elephant is 350cm tall and weighs 5,000 kilos. An adult panda weighs many times more than a baby panda.2.学会表达事物之间的倍数关系。3.巩固用含有数字的事实描述事物，拓展学习更多表示比较的句式。It weighs about 5,000 kilos.(重5000千克)This elephant is 350 cm tall.(350厘米高)It eats 150 kilos of food a day.(一天吃150千克食物)It can help people do a lot of work.weigh v. 重量是……；称……的重量 weigh +基数词+单位表示“重……”weight (n.)重量in weight在体重方面 cm (=centimeter) n. 厘米读作350 centimeters基数词+单位词+形容词Lead in At birth, it is only about 0.1 to 0.2 kilos, but an adult one weighs 100 kilos.出生时只有0.1到0.2公斤左右，但成年体重100公斤。The panda is 150 cm tall when it is standing on two legs.(双腿站立时约150厘米高)It eats 10 kilos of food a day.(一天吃10千克食物)It is a symbol of our country.是我国的象征。 birth n. 出生；诞生 at birth 出生时 adj. 成年的；成人的 n. 成人；成年动物出生时=when it was bornLead in Compare facts about these two animals. Can you compare the two animals?heightweightfoodThis elephant is much taller than this panda. This panda is much shorter than the elephant.This elephant is 200cm taller than this panda. This panda is 200cm shorter than the elephant.高得多矮得多高200cm矮200cmheightHow tall is it?350 cm tall150 cm tallThis elephant weighs much more than this panda. This panda weighs much less than the elephant.This elephant weighs many times more than this panda. This panda weighs 4,900kilos less than the elephant.重得多轻得多重许多倍轻4，900千克weightHow much does it weigh?=How heavy is it ?weighs 5,000 kilosweighs 100 kilosThis elephant eats much more than this panda. This panda eats much less than the elephant.This elephant eats 140 kilos more than this panda. This panda eats many times less than the elephant.吃得多吃得少多吃140千克少吃许多倍How much food do they eat?eats 150 kilos of food a dayeats 10 kilos of food a dayfood1.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. 这个大厅比我们的教室大四倍。e.g. 他跑得比他弟弟快三倍。This hall is five times bigger than our classroom. He runs three times faster than his brother. 注意：“两倍”可用twice表示。拓展:倍数的表达方法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。e.g. 他父亲的年纪有他两倍大。This tree is three times as tall as that one. His father is twice as old as he. 同义句：“A+谓语动词+倍数+the height / weight / length …+of + B ”表示“A的高度/重量/长度……是B的多少倍”。This tree is three times the length of that one. His father is twice the age of he. Example sentences: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)Compare facts about these two animals. Use the language in the box to help you make sentences.1aPanda is 150 cm tall (standing on two legs) weighs 100 kilos eats 10 kilos of food a dayElephant is 350 cm tall weighs 5,000 kilos eats 150 kilos of food a dayNow make more sentences.This panda is 200 cm shorter than this elephant.This elephant eats much more than this panda.…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 此处作不及物动词，意为“重量是……”。How much do you weigh?At birth, most babies weigh between 3 and 4 kilograms.② weigh 还可作及物动词，意为“称……的重量”。She weighed the stone in her hand.③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。【拓展延伸】weight 作名词，意为“重量；分量”。put on/gain weight 表示“增加体重”；lose weight 表示“减重”。e.g. 我称了这个盒子，它重20公斤。e.g. 这个男孩重20公斤。I weighed the box. It weighs 20 kg.The boy weighs 20 kg.＝The boy is 20 kg in weight.Do you know what a panda is like when it's born ?Let's learn more facts about baby pandas.200.2160.1sixteenzero point twotwentyzero point oneBefore listening,Let’s read the numbers.15010012050one hundred and twentyone hundred one hundred and fiftyfifty _____100 _____16 _____20 _____50 _____120 _____0.1 _____0.2 _____ 150√√√√√Listen and check(√) the numbers you hear.1bAt birth, a baby panda is about ______ to ______ kilos.At birth, a baby panda is about ______ cm long.A baby panda is not black. It is ______ and it has no ______.A panda can live up to ______ to ______ years.0.10.215pinkteeth2030 到达（数量、程度等）；至多有；不多于Listen again and complete the sentences.1c出生时 = when sb was born, 在句中常作时间状语 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. 我们学校有多达两千名学生。e.g. 这位老人能活到九十岁。There are up to 2,000 students in our school.The old man can live up to ninety years.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。拓展：up to 的相关短语 up to now 直到现在go up to 走到，走上前live up to 达到；不辜负（期望）；无愧于run up to 跑到（某人面前）walk up to 走到add up to 总计，一共be up to 由某人决定up to date 新式的；现代的；至今，到目前为止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 pandassmallerbornkilosadultbaby100Boy 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. seeteethlivelongblackwhitebirth150Let's read.Teacher：Do you have any questions about baby pandas?Boy 1： Are they much smaller than an adult panda?Teacher：Yes. When they’re born, they only weigh about 0.1 to 0.2 kilos.Boy 1： Wow, that’s small! I know an adult panda weighs many times more than a baby.Teacher：That’s right. And the adult pandas weigh around 100 kilos.Boy 2： What about the size of a baby panda? How small is it?Teacher：At birth, it’s only around 15 cm long, but an adult panda is around 150 cm long.Girl 1： Is a baby panda also black and white?Teacher：No, you would never guess! A baby panda is pink and it cannot see. It also doesn’t have any teeth.Girl 1： How long can pandas live?Teacher：They can live up to 20 to 30 years.Fill in the blanks to retell the conversation.I think you know a lot about an ______panda. It can ___ ___ ___20 to 30 years. It is black and white. It’s about 150cm ______when it _______on two legs. It ________100 kilos and ________10 kilos of food. But it is quite different from a baby . An adult panda weighs many _______more than a baby. A baby is only 0.1 to 0.2 kilos when it is______. It has _____ color, and it’s only around 15cm long at______. How small ! What’s more , it can’t see anything, and it doesn’t have any ______, either. What a ________they make!adultlive up totallstandsweighseatstimesbirthteethdifferencebornpinkMake a comparison between a baby panda and an adult panda. WeightLengthCorlorOtherslife0.1 to 0.2 kilosabout 100 kilosaround 15 cm longaround 150 cm longpinkblack and whitecan’t see,has no teethThey can live up to 20 to 30 years. A baby panda cannot see.An adult panda weighs many times more than a baby panda. ......1eTake turns telling your classmates about pandas. Thank You