(共34张PPT)
Unit 7 What’s the highest mountain in the world
人教新目标版 八年级下
SectionB 1a-1d公开课
Warming-up
Warming-up
How tall...
How heavy...
How much food ... eat every day
height
weight
food
height n.高度
weight n.质量;体重
短语：in weight 在体重方面
How heavy be + 主语 ”对重量提问。
Can you say something about them？
Elephant
It's the biggest animal on land.
It is 350 cm tall.
It weighs 5,000 kilos.
It eats 150 kilos of food a day.
It always eats vegetables, plants, and some fruits.
cm (=centimeter) n. 厘米
weigh v. 重量是......
Panda
It's one of the oldest species in the world.
It is 150 cm tall (standing on two legs)
At birth, it is only about 0.1 to 0.2 kilos, but an adult one weighs 100 kilos.
It eats 10 kilos of food a day.
It always eats bamboos.
It is a symbol of our country.
species n. 物种
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
Presentation
Elephant
Panda
Can you compare the two animals
This 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200cm
height
How tall is it
350 cm tall
150 cm tall
This 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
weight
How much does it weigh
=How heavy is it
weighs 5,000 kilos
weighs 100 kilos
This 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 day
eats 10 kilos of food a day
food
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. 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.
1a
Panda
is 150 cm tall (standing on two legs)
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
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.
Language points
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.
On height/weight/food/other facts you know:
————————————————————————————————————————————————————————————————————————————————————————————
Now make more sentences.
This panda is 200 cm shorter than this elephant.
This elephant eats much more than this panda.
…
Look and guess
What's this
mouse
puppy
kitten
baby panda
lizard
New drills
A baby panda is not black and white.
What else do you know about pandas Listen and learn.
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
_____100 _____16 _____20 _____50
_____120 _____0.1 _____0.2 _____ 150
√
√
√
√
√
Listen and check(√) the numbers you hear.
1b
At 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.
0.1
0.2
15
pink
teeth
20
30
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。
Language points
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 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
Let'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!
adult
live up to
tall
stands
weighs
eats
times
birth
teeth
difference
born
pink
Consolidation
A baby panda cannot see.
An adult panda weighs many times more than a baby panda.
......
1e
Take turns telling your classmates about pandas.
Exercises
一、单项选择。
1.The road is ________ that one．
A．twice as wider as B．twice as wide as
C．twice so wide as D．wider twice than
2.Our school is ________ than yours．
A．twice bigger B．bigger twice
C．twice big D．many times big
B
A
二、用所给单词的适当形式填空。
1.His wife gave ______(birthday) to a baby boy yesterday．
2.Many _______(adult) like playing computer games．
3.The elephant weighs many times ______ (much) than the koala．
4.Town Cinema is _______(cheap) than Screen City．
5.The size of our school is _____(two) bigger than theirs.
birth
adults
more
cheaper
twice
三、根据汉语意思补全句子。
1.那个婴儿生下来重七磅。
That baby weighed seven pounds ______ _____．
2.一只熊猫能活20到30年。
A panda can _________ _________ _________ 20 to 30 years．
3.这头大象的重量比这头熊猫重许多倍。
This elephant weighs __________ __________ more than this panda．
at birth
live up to
many times
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Unit 7 What’s the highest mountain in the world
SectionB1a—1d导学案
【学习目标】
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。
【学习重难点】
掌握重点单词、短语和重点句子。
学会表达事物之间的倍数关系。
【自主预习】
一. 翻译。
1.称重________________ 2.倍数 __________
3.成年熊猫_________________ 4.出生时__________________
5.活到 __________________________
6.每天吃10公斤的竹子_______________________________
7.为……做准备 _____________________
8. 这头大象比那头大象重很多倍。
________________________________________________________
9.初生时,一只熊猫大约0.1到0.2千克。
______________________________________________________________
10. 一只熊猫能活20至30年。
______________________________________________________________
二、背景知识
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。
熊猫属于食肉目、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。
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。
【合作探究】
Listening practice 1b&1c
2.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.
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.
3.Fill in the blanks according to 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!
4.Finish 1d.
【知识点探究】
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 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。________________
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. 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。________________
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。________________
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。
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。
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。________________
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