初中Section A课前预习ppt课件

这是一份初中Section A课前预习ppt课件，共25页。PPT课件主要包含了Free talk，马里亚纳海沟，安赫尔瀑布，thousand，million， 848 86， 000，Practise，小数点读point，小数点后的数字单读等内容，欢迎下载使用。
Learning bjectives
通过本节课的学习，学生能够：
1. 听懂谈论自然奇观的对话，获取关于世界之最 和深海探索的关键信息。2. 初步运用“the + 最高级”句型与同伴就地理之 最的话题开展对话。3. 通过角色扮演和讨论，阐述深海探索的意义， 表达对自然奇观的敬畏及保护环境的意愿。
Think and answer the questins.
D yu like traveling?
Where have yu been?
Did yu see any muntains r rivers?
Lk and answer
Lk at this picture and answer the questins.
Yes, I d. It’s Victria Falls.
It’s ne f the wrld’s largest waterfalls.
I als knw .
1. D yu knw the name f the waterfall in the pht?
2. What d yu think is special abut it?
3. What ther natural wnders d yu knw?
Lk and match
Lk at the pictures and match the places with the pictures.
Nile River Angel Falls Munt Qmlangma
Dead Sea Sahara Desert Mariana Trench
Listen and cmplete
Listen t the game shw. Cmplete the descriptins f the places.
highest muntain
biggest desert
lwest place
deepest pint
Learn and read
Learn hw t read large numbers and try t read the numbers.
1000以上的基数词的表示法：先从右至左数每 位数加一个逗号，把数字分为若干段：第一个逗号前的数字单位为 ，第二个逗号前的数字单位为 ，第三个逗号前的数字单位为 。
9, 000, 000
416 8,848.86 11,000 9,000,000
Listen again. Cmplete the measurements in 1b with the numbers belw.
Read and learn
Read the cnversatin and learn the key language pints.
Hst:Fu Xing:Hst:Liu Hngyu:
Welcme t ur game shw! Tday, it’s all abut gegraphy. Answer as quickly as yu can! Questin ne: What is the highest muntain in the wrld?It’s Munt Qmlangma!Crrect! Hw high is it?I knw this - it’s 8, 848. 43 metres high.
1. as ... asas + 形容词/副词原级 + as，意为“和……一样”。拓展：as ... as ne can为固定句型，意为“尽可能……地”，相当于 as ... as pssible。Answer as quickly as yu can! = Answer as quickly as pssible!尽可能快地回答！
2. the highest muntain结构：the + 形容词最高级 + 名词，意为“最……的……”。形容词最高级前面通常要加定冠词the。拓展：最高级的范围表达：后面常接in或f引导的介词短语来限定范围。Tm is the mst hard-wrking student in ur class.汤姆是我们班里最勤奋的学生。
3. Hw high is it?Hw 用于询问山、树木、建筑物等的高度。Hw high is it? = What’s the height f it?注意：询问人或动物的身高要用 Hw lng/deep/wide is it? = What’s the length f/the depth f/the width f it?它有多长/多深/多宽？
4. It’s 8, 848. 43 metres high.表达测量数据：基数词 + 单位名词 (常为复数) + 形容词。8,848.43 读作：eight thusand eight hundred and frty-eight pint fur three。注意：小数点读作 pint，小数点后面的数字要逐个单读。
Let’s rle-play
Talk abut the places yu have learnt abut.
Lk and cmplete
What d yu knw abut the deep sea? Cmplete the sentences with the infrmatin frm the picture.
1. Fenduzhe reached .2. The deep sea begins at .3. The Titanic rests at . 4. A whale can dive t .
Listen and tick
A class is asking a deep-sea researcher sme questins after his talk. Listen and tick the tpics they discuss.
□ where the deep sea begins□ why peple are researching the deep sea □ which Chinese submersible dived deeper in the water than many thers□ what deep-sea animals are like□ hw everyne shuld prtect the deep sea
Listen again. Cmplete the sentences with the facts frm the cnversatin.
1. Peple still dn’t knw much abut the .2. In , China’s Fenduzhe dived int the deep sea and filmed it.3. Sme animals have unusual abilities. Sme are but can “see”. Sme can even create their wn .4. There is rubbish even at metres deep.
Ms Ga: Thank yu fr the wnderful talk, Mr Jnes. Nw, des anyne have any questins? Emma: I d! Why are s many cuntries researching the deep sea? Mr Jnes: Well, curisity is ne reasn. We dn’t knw enugh abut the cean flr. Fu Xing: I remember that in 2020, China’s Fenduzhe dived deeper int the Mariana Trench than many ther submersibles in the wrld and filmed it. But I didn’t see any deep-sea animals. What are they like? Mr Jnes: Well, many deep-sea animals are large and unusual. Sme animals are blind, but they can “see” as well as thers. Sme even create their wn light! Peter: Cl! Are there any ther surprising facts abut the deep sea? Mr Jnes: Did yu knw that there’s rubbish even at 11,000 metres deep? That shcked many peple. Ms Ga: That’s terrible! We shuld d smething abut it. Mr Jnes: Yu’re right!
Think and answer
Read the cnversatin and answer the questins.
1. What d Emma, Fu Xing and Peter’s questins tell us abut asking gd questins?
Gd questins cme frm listening carefully and wanting t knw mre. They ften start with Why, What, Hw.
2.Why des Mr Jnes mentin “rubbish at 11,000 metres deep”? What des this tell us abut the deep sea?
The deep sea is nt nly mysterius and amazing – it is als vulnerable. We shuld care abut it even thugh it’s far away.
Read the cnversatin in 2b and rle-play it in grups.
Thank yu fr the wnderful talk, Mr Jnes. Nw, des anyne have any questins?
I d! Why are s many cuntries researching the deep sea?
Talk and share
Read the questins and think f mre yu wuld like t ask the deep-sea researcher. Research the answers.
What is the largest shark in the deep sea?What is the bttm f the deep sea like?Why is it imprtant t research the deep sea?
Ask and answer the questins with a partner.
Discuss and share
Discuss this questin in yur grup.
Humans have reached the deepest part f the cean, but we als fund rubbish there. Hw can we cnnect with nature in a better way?
We dn’t thrw rubbish everywhere.
We can use less plastic and recycle things.
We shuld plant mre trees and prtect wild animals.
1. The Greenland shark is ne f the (large) sharks in the deep sea.2. Scientists fund sme (usual) animals at the bttm f the sea. They lk very strange!3. Humans have reached the (deep) part f the cean, but we still fund rubbish there.4. Munt Qmlangma is ne f the mst beautiful (wnder) in the wrld.
用括号内所给单词的适当形式填空。
After learning this lessn, I can
memrize the new wrds.
wnder, desert, measurement, belw, level, surface, depth, dive, submersible,unusual, bttm, ...
talk abut gegraphy facts.
— What’s the lwest place n earth?— It’s ...— Hw lw is it?— Its surface is ...
knw superlatives & large numbers.
1. the + 最高级2. 准确数：具体数字+thusand/millin (不加-s)