人教版（2024）八年级下册（2024）Unit 4 The Wonders of NatureSection A授课ppt课件

这是一份人教版（2024）八年级下册（2024）Unit 4 The Wonders of NatureSection A授课ppt课件，共95页。PPT课件主要包含了filmed，blind，see，China，Egypt，895 ，largest，closer，louder，far等内容，欢迎下载使用。
1a Match the places with the pictures._____ Nile River _____ Angel Falls _____ Munt Qmlangma_____ Dead Sea _____ Sahara Desert _____ Mariana Trench
1b Listen t the game shw. Cmplete the descriptins f the places.1c Listen again. Cmplete the measurements in 1b with the numbers belw.416 8,848.86 11,000 9,000,000
highest muntain
biggest desert
lwest place
deepest pint
1d Talk abut the places yu have learnt abut.A: What’s the lwest place n earth?B: It’: Hw lw is it?B: Its surface is... metres belw sea level.A: Nw, what’s…
2a What d yu knw abut the deep sea? Try t label the depths in the picture with the infrmatin n the left.
2b 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 vessel dived deeper in the water than many thers□ what deep-sea animals are like□ hw everyne shuld prtect the deep sea
2c 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 ____________ it.
3. Many deep-sea animals are _______ and __________. 4. Sme animals have unusual abilities. Sme are _________ but can “_______”. Sme can even create _____________________. 5. There is rubbish even at ___________ metres deep.
large unusual
their wn light
2d Read the questins and think f mre yu wuld like t ask the deep-sea researcher. Research the answers. Then ask and answer the questins with a partner. · What is the largest shark in the deep sea? · What is the bttm f the deep sea like? · What ther vessels dived t the bttm f the cean? · Why is the deep sea imprtant t us?
1. The whale shark. 2. Dark, cld (0-4℃ ), pressurized. 3. Trieste (reached Mariana Trench in 1960) and Shinkai 6500 (Japanese, fr research). 4. It hlds unique bidiversity (fr evlutin/medical research), stres carbn (regulates climate), has mineral resurces, and helps prtect marine ecsystems.（答案均不唯一）
3a Read the cnversatin and underline the three rivers mentined. Yaming: Welcme back, Ella! Hw was yur trip? Ella: It was great! We saw the Huku Waterfall n the Yellw River. Is that the lngest river in China? Yaming: N, the Yangtze River is the lngest river in China. It travels the farthest and is abut 6,300 kilmetres lng. The Yellw River is 5,464 kilmetres lng and is the secnd lngest. By the way, d yu knw why it’s called the Yellw River?
______________
_______________
Ella: Because it’s yellw? Yaming: Right. Sme parts f the river carry brwn and yellw earth. Ella: That’s interesting! I like learning abut rivers. My favurite is the Nile. Did yu knw it’s the lngest river in Africa?Yaming: Yes, it’s 6,671 kilmetres lng. It’s very imprtant in Egypt’s histry.
Ella: That’s right. Bth the Nile and the Yellw River helped ancient civilizatins t develp. And they’re still very imprtant tday.Yaming: Yes. In China, we even call the Yellw River ur “mther river”! Ella: We shuld prtect them by all means.
3b What d Yaming and Ella knw abut these rivers? Read the cnversatin again and cmplete the table.
civilizatins
3c Listen t the cnversatin. Then rle-play it.3d Imagine that yu are Yaming r Ella. Cntinue the cnversatin with a partner abut ther gegraphical features in China. Ella: Culd yu tell me mre abut China, Yaming?Yaming: Sure! What wuld yu like t knw? Ella: What’s the biggest desert in China?Yaming: It’s the Taklimakan Desert. Ella: D yu
4a Read the sentences. Circle the adjectives which cmpare things. Underline the adverbs which cmpare actins.
4b Write r spell ut the numbers. 1. Munt Kilimanjar is _________ (five thusand, eight hundred and ninety-five) metres high. 2. _________ (twenty-five thusand, seven hundred and sixty-eight) cubic metres f water purs dwn Inga Falls each secnd.
3. The East African Rift Valley is abut 4,000 (__________________) miles lng. 4. The Taklimakan Desert has a ttal area f abut 337,000 (____________________________________________________) square kilmetres.
fur thusand
three hundred and thirty-seven thusand
4c Cmplete the passage with the crrect frms f the wrds in the bx. One wrd is used mre than nce. My friends and I visited Victria Falls in Africa last year. Visiting ne f the wrld’s ________ waterfalls was a magical experience.
large scary amazing far clse lud
As we went ________ t the falls, the nise f the water slwly grew ________ and ________. Then, right befre ur eyes, the waterfall appeared. It went n fr as ________ as the eye culd see. Later, we sat in a special pl at the tp f the falls. There, we felt the water rush past us and becme a part f the waterfall. It was the ________ but als the _____________ experience f ur trip!
mst amazing
4d Write sme questins t cmpare places. Then ask a partner yur questins. ·What is the highest ·Which park is bigger, …
Sectin B自主学习
Unit 4 The Wnders f Nature
1a What d yu knw abut Munt Qmlangma? Tell a partner.
Munt Qmlangma, the wrld’s highest muntain, stands n the China - Nepal brder as part f the Himalayas. Rising t abut 8,848.86 metres, it has a harsh envirnment f extreme cld and strng winds. （答案不唯一）
1b Scan the article t find the infrmatin belw. 1. ________________ : what climbers called the way up the nrthern side f the muntain 2. ________________ : the distance between the Secnd Step and sea level
8,600 metres
3. ________________ : when the first Chinese team reached the tp f Qmlangma 4. _________________ : when the secnd Chinese team reached the tp f Qmlangma 5. _________________________ : the height f Qmlangma in 2020
On 25 May 1960
8,848.86 metres
Reaching New Heights T mst peple, Munt Qmlangma is ne f the greatest wnders f the wrld. On the highest place n earth, yu will feel like yu are able t tuch the sky. But nly the best climbers reach the tp, and that is nly if they survive the terrible cnditins first. On the muntain, temperatures can fall t-30 degrees. Climbers must als deal with thin air, high cliffs, and changeable weather.
长难句分析：这是一个并列复合句。and 连接两个并列分句：But nly the best climbers reach the tp 和that is nly if they survive the terrible cnditins first，第二个分句含nly if 引导的条件状语从句。
Befre 1960, n ne was able t reach the tp f Qmlangma frm the nrthern side. Muntain climbers even called that way the “Death Rad”, but a Chinese climbing team was determined t make the climb.
On 24 May 1960, climbers Liu Lianman, Wang Fuzhu, Qu Yinhua, and Gng Bu arrived at the Secnd Step. It was 8,600 metres abve sea level. Peple said it was s high that even birds culd nt reach it. Liu allwed his teammates t step n his shulders. Bit by bit, the climbers pulled themselves up, and they made it past the Secnd Step. At 4:20 a.m. n 25 May, the Chinese natinal flag flew abve the wrld's highest muntain fr the first time.
In 1975, anther Chinese team climbed t the tp f Qmlangma t d research. This time, they brught a ladder t the Secnd Step. Until 2007, almst all climbers frm the nrthern side used this "Chinese Ladder" t reach the tp much faster. In 2020, a third team returned t Qmlangma t measure its height — 8,848.86 metres.
Climbing Qmlangma is dangerus. Sme climbers reach the tp successfully, but many fail. Why d peple still risk their lives t climb the highest muntain in the wrld? It is because human curisity and ambitin cannt be stpped. Or, as the English explrer Gerge Mallry put it, it is simply “because it’s there”!
长难句分析：这是一个复合句。as... put it 是方式状语从句，说明后面内容呈现的方式；主句it is simply ‘because it’s there 中，it 作主语，is 是系动词，because it’s there 是表语从句，说明it（登山这件事）的本质原因。
What’s the main idea f the passage? _______A. The terrible cnditins n Munt Qmlangma.B. The histry f Chinese teams climbing Munt Qmlangma.C. Why peple like climbing Munt Qmlangma.D. The wnders f Munt Qmlangma and human attempts t climb it.
1c Read the article again and find the answers t these questins. Write the paragraph numbers and nte dwn the details.1. Why is it difficult t climb Qmlangma?Paragraph(s): Details:
Temperatures fall t -30℃. Climbers face thin air, high cliffs and changeable weather.
2. What achievements did China's climbing teams make?Paragraph(s):Details:
1960: First Chinese team reached the tp. On 25 May, the Chinese natinal flag flew abve the wrld’s highest muntain fr the first time. 1975: Anther Chinese team climbed t the tp t d research and left the “Chinese Ladder”. 2020: A team measured its height as 8,848.86 metres.
3. Why d peple risk their lives t climb Qmlangma?Paragraph(s):Details:
Due t human curisity and ambitin. Or, as Gerge Mallry said “because it’s there”.
1d Read again. Circle T fr true r F fr false. Then crrect the false statements.1. T reach the tp f Qmlangma, ne needs bth a strng bdy and a strng mind. T F2. The climber Gng Bu helped his teammates g past the Secnd Step. T F
3. Mre than ne Chinese team used the "Death Rad" t reach the tp f Qmlangma. T F4. Tw Chinese teams reached the tp f Qmlangma in 1975. T F5. Climbers first started t use the “Chinese Ladder” in 2007. T F
1e Discuss the questins.1. Hw d yu think the Chinese climbers felt when they placed the natinal flag n tp f Qmlangma?2. What d yu think Gerge Mallry meant by “because it’s there”?3. What qualities d yu think a gd muntain climber needs t have?
1. Prud, excited, and fulfilled. 2. It means the attractin f the muntain itself. The muntain is there waiting t be cnquered.3. The physical strength, strng willpwer, teamwrk skills, and respect/cautin fr nature.
2a Match the wrds n the left with their ppsites n the right.1. belw _______5. tp _______2. cmmn _______ 6. nrthern _______3. lw _______ 7. risky _______4. dead _______ 8. survive _______A. safe E. unusual B. bttm F. living C. suthern G. high D. abve H. die
2b Read the examples and make mre sentences using hw and the wrds in the bx.Hw far is it frm yur hme t schl?Hw heavy is a blue whale?Hw large is yur cuntry?Hw ften d yu exercise?lng high deep lw fast sn
1. ___________________________________________________2. ___________________________________________________3. ___________________________________________________4. ___________________________________________________5. ___________________________________________________6. ___________________________________________________
Hw lng is the river in ur city?Hw high is that tall building? Hw deep is the swimming pl? Hw lw is the price f the bk?Hw fast can yur bike g? Hw sn will the mvie start?
2c Cmplete the passage with the crrect frms f the wrds in the bx.Lcated in Siberia, Russia, Lake Baikal is ne f the wrld’s mst famus lakes. It is the ___________ freshwater lake in the wrld. T reach the bttm, yu must _________1,620 metres! It is als larger than mst ther lakes. Its _________ cvers 31,500 square kilmetres.
deep envirnment survive wnderful surface dive
That is bigger than the cuntry f Belgium! Lake Baikal is very cld fr mst f the year. But ver 1,200 different types f animals can still ___________ in this _________________. Tday, the lake still attracts many curius travellers. After all, it is a great natural __________!
3a Read the advertisement. Circle the numbers and underline the adjectives and adverbs used t describe the Great Barrier Reef.The Great Barrier Reef: An Amazing Underwater WrldD yu lve the cean? D yu want t visit ne f the natural wnders f the wrld? If s, visit the Great Barrier Reef!
Circle: 345,000; 900 Underline: amazing; natural; biggest; alive; largest
Lcated n the nrtheastern cast f Australia, the Great Barrier Reef is ne f the mst amazing places t visit. It is the biggest cral reef in the wrld. It takes up an area f 345,000 square kilmetres and includes ver 900 islands and white sand beaches.
The Great Barrier Reef is als alive! If yu visit it, yu will see the largest living structure n earth. Here, yu can swim, dive, r snrkel in the clear water and see cral, plants, and schls f clurful fish. If yu dive deeper, yu might even see large fish, turtles, and sharks. Fr peple wh lve the cean, visiting the Great Barrier Reef is the dream f a lifetime!
3b Read a student’s ntes n Qinghai Lake. Rewrite them in full sentences.Qinghai Lake· What: a salt lake· Where: Qinghai Prvince, China· Special fact: the largest lake in China (4,340km²)· Things t d: phtgraph wildlife (fish and birds), visit islands, ride a bike r hrse
1. Qinghai Lake is a ___________ in ___________________________.2. Qinghai Lake is _____________________ in China.3. It is ____________________ in size.4. If yu visit Qinghai Lake, yu can _____________________________________________________________________________________.
salt lake Qinghai Prvince, China
the largest lake
phtgraph wildlife (fish and
birds), visit islands, ride a bike r hrse.
3c Write an advertisement fr Qinghai Lake r anther natural wnder. Describe it and explain why peple shuld visit it. Try t make yur advertisement as persuasive as pssible.
Discver Qinghai Lake: A Gem in the Heart f China! Nestled in QinghaiPrvince, Qinghai Lake is a breathtaking salt lake and the largest lake in China, spanning 4,340 km2. Its crystal-clear waters reflect the vast sky, while surrunding islands and diverse wildlife create a magical scene. Cycle r ride a hrse alng the shre, r simply sak in the peaceful beauty. It’s a place t escape, cnnect with nature, and make memries that will last a lifetime. Dn’t miss this natural wnder!（答案不唯一）
根据句意，用括号内所给词的适当形式填空1. My sister is _______ (tall) than me. But my brther is the _______ (tall) in my family.2. This strybk is ___________________ (interesting) than that ne. The fairy tale bk is the ______________________ (interesting) f all the bks I have.3. Tm’s handwriting is __________(gd) than mine. Lucy has the ___________ (gd) handwriting in ur class.
taller tallest
mre interesting
mst interesting
试着写出下列各句中数字的读法4. The Eiffel Twer stands at 330 metres tall (including antennas). ___________________________________________________5. The height f Munt Fuji is abut 3,776 metres. ___________________________________________________6. The Great Wall f China is apprximately 21,196 kilmetres in length. _____________________________________________
three hundred and thirty
three thusand, seven hundred and seventy-six
twenty-ne thusand, ne hundred and ninety-six
大多数形容词有三个等级：原级、比较级、最高级。原级指形容词的原形； 比较级用来表示“较……”或“更……一些”；最高级则表示“最……”。
一 形容词与副词的比较级和最高级
考点1 形容词与副词的比较级和最高级的变化规则
不规则变化需特殊记忆gd/well—better—best; many/much—mre—mst; little—less—least; ld—lder/elder—ldest/eldest; far—farther/further —farthest/furthest; ill/bad/badly—wrse—wrst
考点2 形容词与副词比较级的用法
特别提醒：1. 比较级前可以加修饰词，如even，much，far，a little，a lt等。· My sister’s rm is much tidier than mine.我姐姐的房间比我的整洁得多。2. 比较的对象必须一致。有时为了避免重复，可以用that 或thse 代替前面出现的词，而且that 或thse 不能省略。· The ppulatin f Suihua is much smaller than that f Harbin.绥化的人口比哈尔滨的人口少得多。
3. 用形容词的比较级来表达最高级的概念：A+ 谓语+ 比较级+ than any (ther) + 可数名词单数+ 范围。意为“A 是……中最……的”或“A 比(其他)任何……都……”。注意：当A 在范围内比较时，必须加ther；当A 不在范围内比较时，去掉ther。· Shanghai is bigger than any ther city in China. 上海比中国其他的任何一个城市都大。· Shanghai is bigger than any city in Japan. 上海比日本的任何一个城市都大。
考点3 形容词与副词最高级的用法
最高级常用来表示三者或三者以上人或物的比较。最高级前必须加定冠词the，但是当形容词的最高级前已经有了作定语用的形容词性的物主代词或名词所有格时，不加the。
二 大数字的表达与读法
1. 从数字的右端向左数，每三位数加一个逗号。2. 从右端向左端开始，第一个逗号处读thusand(千)，第二个逗号处读millin(百万)，第三个逗号处读billin(十亿)。3. 读时通常在hundred 后加and，如果读数中百位数为0，则在thusand 后加and。· 18,357,089 读作eighteen millin, three hundred and fifty-seven thusand, and eighty-nine。
表示确切的数量直接用基数词，表示不确切的数量用hundred，thusand，millin，billin的复数形式再搭配介词f。· Millins f bees are flying in the sky. 数百万只蜜蜂正在空中飞舞。
特别提醒：英语中没有“万”这个单位，表达“万”时要借助thusand，如“一万”用ten thusand。· The ppulatin f ur village is abut ten thusand.我们村庄的人口大约有一万。· D yu think it is better t travel ten thusand miles than t read ten thusand bks?你认为行万里路比读万卷书更好吗？
一 用括号内所给词的适当形式填空1. China is ne f ____________ (ld) cuntries in the wrld. We are all prud f it.2. [江苏扬州中考] The internatinal influence f Yangzhu is getting __________(strng) than befre.
3. The mre we cmmunicate with ur parents, the _______ (gd) we’ll understand each ther.4. Lin Ta runs _______ (fast) than mst f his classmates. He is the running star in his class.5. [江苏镇江中考] Of all the vegetables, I think the tmat is the _______(tasty) and healthiest.
二 单项选择6. The ______ yu are, the ______ mistakes yu’ll make.A. mre careful; mre B. less careful; fewer C. mre careful; fewer
7. [ 河北中考] Jianshe Rad is the ______ rad in ur city, especially arund 8:00 am.A. busier B. busiest C. wider D. widest8. The Qinghai Lake is ______ lake in China. It is in Qinghai Prvince.A. large B. larger C. largest D. the largest
9. [天津中考] Lingling is ne f ______ students in my class. She is always ready t ffer help.A. helpful B. mre helpful C. less helpful D. the mst helpful10. [福建中考] AI technlgy in China has develped ______ than anyne expected.A. fast B. faster C. fastest
三 短文填空(语篇练语法)My HbbiesI have many hbbies, but I think reading is the 11. _________ (gd) ne. Every day after class, I spend time in the schl library. It’s 12. _________(quiet) than the classrm, and I can read 13. _________(many) interesting bks there.
Amng all my classmates, Tm reads 14. ________ (fast). He can finish a strybk in ne day! But I read 15. ______________(carefully) than him, s I ften find mre fun details. Our English teacher always says, “The 16. ________ (much) yu read, the 17. ________ (gd) yur writing will be.”Last week, I jined in a reading cmpetitin. I was a little nervus at first, but I tried my 18. ________ (gd). Finally, I wn the 19. ________ (tw) prize. It is 20. _____________ (happy) day in my schl life s far!
mre carefully
the happiest
写作维度本单元的写作项目是“描述某个国家或地区的自然景观”。相关内容包括：（1）介绍地理特征与自然奇观（2）介绍著名山川河流和动植物（3）谈论探险精神。
黄金语料（从教材内外积累好句）开头段 ① Have yu ever been ② D yu knw the highest muntain in the wrld?③ Welcme t ...④ The Nansha Islands are a grup f islands in Suth China Sea.
中间段 ① It is difficult fr us t climb Munt Qmlangma.② The Yangtze River is ne f the lngest rivers in China.③ Munt Huang is in the suth f Anhui Prvince.④ It is ne f the mst famus muntains in China.⑤ Munt Huang is famus fr its natural scenery，such as the sea f cluds, unique rcks and ht springs.⑥ There are all kinds f sea animals and lts f mineral resurces in the sea.
结尾段① Thank yu fr listening!② Munt Huang is really a nice place t visit.③ Every year, thusands f dmestic and internatinal turists cme t visit it.
经典例题（从经典例题中学会审题）我国幅员辽阔，山川秀美，到祖国各地旅游是一件非常惬意的事情。假设你是王涛，请用英语介绍一下我国美丽的南沙群岛。
提示：1. 南沙群岛位于中国南海，最远的岛屿距离海南岛大约1,600千米；由200多座岛屿组成，面积约为88.6万平方千米；2.资源丰富：有各种各样的海洋生物，矿产资源丰富；3.景色优美，将来会成为一个旅游胜地。参考词汇：the Nansha Islands南沙群岛；mineral resurces矿产资源；scenery景观
审要点：位置、距离、面积、资源、景色
精彩范文展示Hell, everyne. I’m glad t tell yu smething abut the Nansha Islands f China. The Nansha Islands are a grup f islands in Suth China Sea and the farthest island is abut 1,600 kilmeters away frm Hainan Island. They are made up f mre than 200 islands and abut 886,000 square kilmeters in size.
①It is abut 9,000,000 square kilmetres in size. （教材P35）
The Chinese peple have been living and wrking there since mre than 2,000 years ag. They are rich in natural resurces. There are many different types f sea animals and lts f mineral resurces in the sea. What’s mre, they are famus fr their beautiful scenery. With the develpment f these islands, they are sure t becme turist attractins f China. Thank yu fr listening!
② But ver 1,200 different types f animals can still...（教材P38）
【亮点词块】a grup f 一组，一群be made up f 由……组成in size 在尺寸方面many different types f 许多不同种类的
【高分句子】The Chinese peple have been living and wrking there since mre than 2,000 years ag. (现在完成进行时)中国人民自2000多年前就在那里生活和工作。What’s mre, they are famus fr their beautiful scenery. (What’s mre而且，be famus fr以……闻名)而且，它们以美丽的风景而闻名。
实战演练在我们国家众多的河流中，长江（the Yangtze River）具有举足轻重的地位。为了加深同学们对长江的了解，增强对长江的热爱，你们学校要举行主题活动，现向全体同学征文。请你根据提示写一篇80 词左右的短文来介绍长江。
注意：1. 长江是亚洲最长的河流，也是世界上第三长河，全长约6300 千米；2. 长江发源于青海省，最后汇入太平洋（the Pacific Ocean）；3. 长江里有各种各样的鱼。对中国来说长江非常重要；4. 我们应该保护长江，停止对其倾倒垃圾和排废水。参考词汇： start frm 起源于、endangered species 濒危物种
范文参考The Yangtze RiverThe Yangtze River is the lngest river in Asia and it’s als the third lngest river in the wrld.It is abut 6,300 kilmetres lng. It starts frm Qinghai Prvince and ges int the Pacific Ocean. There are many kinds f fishes in the river and sme f them are endangered species.