人教版（2024）八年级下册（2024）Section A授课课件ppt

这是一份人教版（2024）八年级下册（2024）Section A授课课件ppt，共29页。
Talk abut gegraphy facts abut natural wnders.
Learn new wrds and phrases: wnder, desert, measurement, square kilmetre, belw, sea level, surface, depth, dive, unusual, bttm
相当于g/cme int，通常不用于被动语态When the teacher entered (= came int) the classrm, all the students stpped talking. 当老师进入教室时，所有的学生都停止说话了。
(3)输入(信息)Jack, tell me hw t enter the infrmatin. 杰克，告诉我怎么输入这些信息。
(1)考上(学校或大学)Wang Lei is lking frward t entering the best high schl in September. 王磊期待着九月份考上最好的高中。
(2)报名参加Linda will enter a writing cmpetitin. 琳达将报名参加写作比赛。
(1) 在句中作主语时，谓语动词用第三人称单数形式。(2) 形容词或动词不定式修饰复合不定代词时，要放在复合不定代词之后，如smething imprtant“重要的事情”，smething t eat“吃的东西”。
常用于否定句或疑问句中
everybdy(everyne)
smebdy(smene)
anybdy(anyne)
[可数名词]常用短语有：make decisins/make a decisin/make ne’s decisin 做决定change ne’s decisin 改变决定make a decisin t d sth. = decide t d sth.决定做某事
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?
It’s Victria Falls.
It’s super big and wide.
Angel Falls
Sahara Desert
世界最长河流（约 6650 千米），流经 11 个非洲国家，孕育了古埃及文明，是非洲重要的水源与农业命脉。
位于委内瑞拉，是世界最高的不间断自由落体瀑布，总高 979 米，主落差 807 米，藏于圭亚那高原雨林中。
世界最大的热带沙漠，横跨北非 11 国，总面积约 932 万平方千米，地貌以沙丘、戈壁、绿洲为主，气候极端干旱。
安赫尔瀑布(天使瀑布)
Munt Qmlangma
Mariana Trench
位于西北太平洋，是全球最深的海沟，最深处挑战者深渊约 10994 米，是板块俯冲形成的深海洼地。
位于以色列、约旦、巴勒斯坦交界处的内陆盐湖，湖面海拔约 - 430.5 米（世界陆地最低点），盐度极高，人可轻松漂浮。
喜马拉雅山脉主峰，世界海拔最高峰（8848.86 米），位于中国与尼泊尔边境，山体呈金字塔状，终年积雪。
Try t read the fllwing numbers.
fur hundred and sixteen
eight thusand, eight hundred and frty-eight pint eight six
eleven thusand
nine millin
Hst: __________ur game shw! Tday, it's all abut gegraphy. Answer as quickly as yu can! Questin ne: What is the________________in the wrld?Fu Xing: It's Munt Qmlangma!Hst: Crrect! ________________?Lin Hngyu: I knw this—it's 8,848.43 metres high.Hst: N, srry. Fu Xing?Fu Xing: Is it 8,848.86 metres?Hst: Yes! But sme scientists say Qmlangma is still_____________ ! Nw, name the________________ in the wrld.Fu Xing: The Taklimakan Desert?
Listen and fill in the blanks.
highest muntain
grwing taller
Hw high is it
biggest desert
Hst: ___________! Ella?Ella: It's the Sahara Desert.Hst: Right! Nw, ________________?Ella: It's abut 9,000,000 square kilmetres.Hst: That's right! What's the _______________ n earth?Lin Hngyu: It's the Dead Sea!Hst: Well dne! Its surface is 416 metres ______ sea level. Nw where's the ______________ in the cean?Fu Xing: It's in the Mariana Trench.Hst: That's crrect! Hw _______ is it?Fu Xing: It's abut 11,000 metres deep.Hst: Crrect!
hw big is it
lwest place
deepest pint
(deep/big/high)
(highest muntain/biggest desert)
A: What’s the highest muntain in the wrld?
B: It’s Munt Qmlangma.
A: Hw high is it?
B: It’s 8,848.86 metres high.
10,909 metres
3,800 metres
ver 2,000 metres
/səbˈmɜːsəbl/潜水艇
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 much 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!
What is the largest shark in the deep sea?
深海中最大的鲨鱼是鲸鲨（Rhincdn typus），它也是现存世界上最大的鱼类，最大个体体长可达 18.8 米，体重超 30 吨。
The bttm f the deep sea is very dark and cld. There are lts f strange-lking rcks, muntains in sme places, and a lt f sft mud. There are als sme special creatures.
First, it helps us understand Earth’s histry because many deep-sea rcks and sediments hld clues abut past climates.首先，研究深海能帮我们了解地球的历史，因为许多深海岩石和沉积物中，都藏着能揭示过去气候的线索。
Secnd, deep-sea creatures have special abilities. Fr example, they can make light by themselves, and they have special enzymes that wrk under high pressure. These can help medicine and technlgy.深海生物有特殊的适应能力，比如会生物发光，还有能在高压环境下工作的酶，这些都能帮到医药和科技领域。
Mst imprtantly, the deep sea helps cntrl the glbal climate by taking in carbn dixide.
最重要的是，深海能吸收二氧化碳，在调节全球气候方面发挥着关键作用。
A: What is the largest shark in the deep sea?B: I think it’s the whale shark.A: D yu knw hw large it is?B: It can grw up t abut 10 t 20 metres in length.A: What is the bttm f the deep sea like?B: It is dark, freezing, and has high pressure. There are als many unique creatures.A: Why is it imprtant t research the deep sea?B: Because the deep sea has unique species fr research, hlds imprtant resurces, and can help cntrl ur climate.
Hw shuld everyne prtect the deep sea?
The deep sea is hme t cuntless amazing creatures.