八年级下英语人教版Unit7第3课时（B1a-1d）课件.pptx(纯ppt,无音视频)

1、R八年级下册八年级下册Unit 7 Whats the highest mountain in the world?Section B 1a-1dNew Words cm=centimeterweigh(v.)birth(n.)adult(adj.&n.)/sentmi:t(r)/we/b(r)/dlt/,/dlt/厘米厘米(=centimetre)重量是重量是；称；称的重量的重量 出生；诞生出生；诞生 成年人的；成人的成年人的；成人的成人；成年动物成人；成年动物New Phrases 出生时出生时到达（某数量、程度到达（某数量、程度等）；至多有；不多于等）；至多有；不多于at birth u

2、p to Words gamecm(centimeter)at birthadultup tobirthweigh根据星星中的英文说出中文意思！Lead-in How much do you know about elephants and pandas?大象是现存世界最大的大象是现存世界最大的 陆栖动物，主要外部特陆栖动物，主要外部特征为柔韧而肌肉发达的长鼻征为柔韧而肌肉发达的长鼻和扇大的耳朵，具缠卷的功和扇大的耳朵，具缠卷的功能，是象自卫和取食的有力能，是象自卫和取食的有力工具。象肩高约工具。象肩高约2 2米，体重米，体重3 37 7吨。非洲象耳大，体型吨。非洲象耳大，体型较大，体重较重。

3、亚洲象耳较大，体重较重。亚洲象耳小，身体较小，体重较轻。小，身体较小，体重较轻。大熊猫最奇特的一点大熊猫最奇特的一点是新生儿在出生时相当的不成是新生儿在出生时相当的不成熟，体重仅是它母亲体重的熟，体重仅是它母亲体重的0.1%0.1%，平均为，平均为145145克左右，克左右，约为成年的千分之一。照顾孩约为成年的千分之一。照顾孩子是一项非常艰巨的任务，通子是一项非常艰巨的任务，通常历时常历时1818个月，有时长达两年，个月，有时长达两年，直到她的下一个孩子出生。直到她的下一个孩子出生。1aCompare facts about these two animals.Use the language

4、 in the box to help you make sentences.Elephant is 350 cm tall weighs 5,000 kilos eats 150 kilos of food a dayPanda is 150 cm tall (standing on two legs)weighs 100 kilos eats 10 kilos of food a dayExample sentence:This elephant weighs many times more than this panda.(200 cm taller/shorter,weigh much

5、 more/less,eat much more/less,eat many times more)Elephant-is 350 cm tall-weighs 5,000 kilos-eats 150 kilos of food a dayTry to describe the elephant using the information above.For example:1.This elephant is 350 cm tall.2.It weighs 5,000 kilos.3.It eats 150 kilos of food a day.Panda-is 150 cm tall(

6、standing on two legs)-weighs 100 kilos-eats 10 kilos of food a dayTry to describe the panda using the information above.For example:1.The panda is 150 cm tall when it is standing on two legs.2.It weighs 100 kilos.3.It eats 10 kilos of food a day.This elephant is 200 cm taller than this panda.This el

7、ephant weighs much more than this panda.This elephant eats much more than this panda.This elephant eats many times than this panda a day.1bListen and check()the numbers you hear._ 100 _ 16 _ 20 _ 50 _ 120 _ 0.1 _ 0.2 _ 150 1cListen again and complete the sentences.1.At birth,a baby panda is about _

8、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.0.10.215pink2030teeth听力原文听力原文Teacher:Do you have any questions about baby pandas?Boy 1:Are they much smaller than an adult panda?Teacher:Yes.When theyre bor

9、n,they only weigh about 0.1 to 0.2 kilos.小很多小很多 Boy 1:Wow,thats small!I know an adult panda weighs many times more than a baby.Teacher:Thats right.And the adult pandas weigh about 100 kilos.很多倍很多倍 Boy 2:What about the size of a baby panda?How small is it?Teacher:At birth,its only around 15 cm long,b

10、ut an adult panda is around 150 cm long.Girl: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 doesnt have any teeth.Girl:How long can pandas live?Teacher:They can live up to 20 to 30 years.长达长达年年Try to make cards for adult panda and

11、 baby panda.You can use the cards in 1a as examples.Then work in pairs and compare the adult panda and baby panda.1.This elephant weighs many times more than this panda.weigh“重量是重量是”，在此句中作系动词；，在此句中作系动词；意为意为“称称的重量的重量”时作及物动词。时作及物动词。你上次是什么时候称的体重你上次是什么时候称的体重?When did you weigh yourself last time?Languag

12、e pointsweight为为weigh的名词形式，是的名词形式，是不可数名词，意为不可数名词，意为“重量重量”：weight gain/put on weight 增肥增肥lose weight 减肥减肥拓拓 展展（江苏泰州中考）（江苏泰州中考）What a pity!Sue lost the game because the _(weigh)of her shoes made it difficult for her to run fast.weight many times more than“比比多很多倍多很多倍”，是倍数的表达方式之一。，是倍数的表达方式之一。英语中常用的倍数表达法

13、有：英语中常用的倍数表达法有：（1）“A+谓谓+倍数倍数+形形/副的比较级副的比较级+than+B”A是是B的多少倍（大的多少倍（大/小小/长长）例：他跑得比他弟弟快三倍。例：他跑得比他弟弟快三倍。He runs three times faster than his brother.（2）“A+谓谓+倍数倍数+as+形形/副的原级副的原级+as+B”A是是B的几倍的几倍例：我们的学校是你们学校的两倍大。例：我们的学校是你们学校的两倍大。Our school is twice as big as yours.（3）“A+谓谓+倍数倍数+the height/weight/length/size

14、 +of+B”A是是B的几倍（高的几倍（高/重重/长长/大大）例：这座山的高度是那座小山的四倍。例：这座山的高度是那座小山的四倍。This hill is four times the height of that small one.（1）他跑得比他弟弟快三倍。他跑得比他弟弟快三倍。He runs _ his brother.（2）这棵树是那棵树的三倍高。这棵树是那棵树的三倍高。This tree is _ that one.（3）这座山的高度是那座小山的四倍。这座山的高度是那座小山的四倍。This hill is _ that small one.three times faster th

15、an three times as tall as four times the height of 演练演练Our teacher tells us that the earth is about _ as the moon.A.as fifty time big B.fifty times as bigC.as big fifty times D.fifty as times big2.At birth,a baby panda is about 0.1 to 0.2 kilos.at birth“出生时出生时”，相当于，相当于when it was born。birth为不可数名词，意为

16、为不可数名词，意为“出生；诞生出生；诞生”。例：出生时，这个婴儿大约例：出生时，这个婴儿大约3公斤。公斤。At birth,the baby was about three kilos.3.A panda can live up to 20 to 30 years.up to意为意为“到达（某数量、程度等）；不多于到达（某数量、程度等）；不多于”。In some areas of Africa,children get educated up to 12 years old.在非洲的一些地区，孩子最多受教育到在非洲的一些地区，孩子最多受教育到12岁。岁。be up to sb.意为意为“由某人

17、决定由某人决定”。拓拓 展展例：例：爸爸，我们去那里度假？爸爸，我们去那里度假？由你决定。由你决定。Where shall we go for vacation,Daddy?Its up to you.up to 的相关短语的相关短语 up to nowgo/walk up to live up torun up to直到现在直到现在走到，走上前走到，走上前达到；不辜负（期望）达到；不辜负（期望）跑到（某人面前）跑到（某人面前）总计，一共总计，一共add up to be up to up to date由某人决定由某人决定新式的；现代的；新式的；现代的；至今，到目前为止至今，到目前为止Her

18、 school work isnt quite_ the mark.A.lead to B.turn toC.used to D.up to1dTake turns telling your classmates about pandas.An adult panda weighs many times more than a baby panda.A baby panda cannot see.A baby panda is pink and it doesnt have any teeth.At birth,a baby panda is only around 15 cm long.Th

19、e adult pandas weigh around 100 kilos.Pandas can live up to 20 to 30 years.Key words:weigh birth adult Phrases:at birth up to Sentences:This elephant weighs many times more than this panda.Exercise 1.My grandma is a happy and healthy woman and shell live _ 100 years old.A.up to B.to C.up D.being2.Da

20、vid jumped the _ in the long jump.He won the game!A.longest B.fastest C.highest D.farthest一、单项选择。一、单项选择。3.It was a hundred times _ than Id expected.A.fun B.more fun C.the most fun D.funny4.Look at the cute baby over there.He is about 50cm long _ birth.A.for B.on C.in D.at 二、完成句子。二、完成句子。1.He _(weight)only 70 kilos now after taking a balanced diet.weighs2.他父亲的年纪有他两倍大。他父亲的年纪有他两倍大。His father is _ _ _ as he.twice as old