人教版（2024）八年级下册（2024）Section A授课ppt课件

这是一份人教版（2024）八年级下册（2024）Section A授课ppt课件，共36页。PPT课件主要包含了a ，拓展知识，b ，China ，Egypt，464 ，不规则变化，比较级的用法，c ，d 等内容，欢迎下载使用。
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 the wrld?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 at all csts.
一、用所给词的适当形式填空。 （5 分）1. A gd friend truly cares abut yu and wuld like (d) anything gd fr yu.2. With the (develp) f China, peple’ s lives are better and better.
develpment
点拨： the后需接名词， develp的名词形式为 develpment, with the develpment f表示“随着……的发展”, develp的形容词： develped(发达的)、develping (发展中的)。
3. Sun Wukng has a magic stick, and he can change its (lng).4. [厦门期末] The man didn’ t realize the _____________ (imprtant) f health until he gt ill seriusly.5. Bill lives the (far) frm the schl. He has t get up early t catch the early bus.
The Huku waterfall
壶口瀑布是黄河干流瀑布 。东濒山西省临汾市吉县壶口镇，西临陕西省延安市宜川县壶口镇，为两省共有旅游景区。南距陕西省西安市350千米；北距山西省太原市387千米。 壶口瀑布是中国第二大瀑布，世界上最大的黄色瀑布 。黄河奔流至此，两岸石壁峭立，河口收束狭如壶口，故名壶口瀑布。瀑布上游黄河水面宽300米，在不到500米长距离内，被压缩到20—30米的宽度。1000立方米/秒的河水，从20多米高的陡崖上倾注而泻，形成“千里黄河一壶收”的气概。
Yellw River
黄河，是位于中国北方地区的大河，属世界长河之一，中国第二长河（也有称第二大河流）。黄河之“黄”，实为泥沙。古籍有载：“黄河斗水，泥居其七”。黄河全长约5464千米 ，流域面积约79.47万平方千米（包括内流区4.20万平方千米）。黄河是中华文明最主要的发源地，中国人称其为中华民族的“母亲河”。每年都会携带十六亿吨泥沙，其中有十二亿吨流入大海，剩下四亿吨长年留在黄河下游，形成冲积平原，有利于种植。黄河流域是中国开发最早的地区。在世界各地大都还处在蒙昧状态的时候，我们勤劳勇敢的祖先就在这块广阔的土地上斩荆棘、辟草莱，劳动生息，创造了灿烂夺目的古代文化。
Yangtze River
长江，中国境内太平洋水系河流，发源于青海省西南部、青藏高原上的唐古拉山脉主峰各拉丹冬雪山，曲折东流，干流先后流经青海、四川、西藏、云南、重庆、湖北、湖南、江西、安徽、江苏、上海共11个省、自治区和直辖市，最后注入东海。是中国、亚洲第一大河，全球第三长河流。流域面积180万平方千米，约占全国总面积的1/5，年入海水量9513亿立方米，占全国河流总入海水量的1/3以上。截至2023年，长江流域内已建设了125座联合调度水工程，涵盖诸如长江三峡、葛洲坝等重要的水利项目。 长江干流素有中国“黄金水道”之称，通航里程达2800多千米。
二、用方框中词的适当形式填空。（5 分）6. Scientists are trying t find ways t grw crps in the .7. The air near feels very cl because f the flying water.8. Remember t clean the f the windws befre the party.
surface, develp, waterfall, desert, civilizatin
waterfalls
9. Different have their wn special cultures and traditins.10. The f science has changed ur lives a lt.
civilizatins
What d Yaming and Ella knw abut these rivers? Read the cnversatin and cmplete the table.
civilizatins
形容词 / 副词比较级变化规则
high— higherlw — lwerdeep —deeper
一般情况下，在词尾加-er
large — largerfine — finer
以不发音字母e结尾的词，在词尾加-r
heavy — heaviereasy — easierearly — earlier
以“辅音字母 + y”结尾的双音节词，先把y改为 i ,再加-er
big — biggerfat — fatterthin — thinner
重读闭音节词词尾只有一个辅音字母时，先双写该辅音字母，再加-er
beautiful — mre beautifulinteresting — mre interestingdelicius — mre delicius
多音节词和部分双音节词在词前加mre
比较级(cmparatives)
1. 表示在两者进行比较时用比较级，结构为 “A + be/行为动词 + 比较级 + than + B.”。My paper plane flew farther than Jenny’s.2. 表示“哪一个更……”时，用“Which/ Wh is + 比较级, A r B?”句型。Which is nearer t the sun, Mars r the earth?
3. 表示“两者之间较……的一个”时，常用 “the + 比较级”结构。He is the taller f the tw.4. 表示“越来越……”时，用“比较级 + and + 比较级”，多音节词和部分双音节词用 “mre and mre + 原级”。It’s becming clder and clder.
5. 表示“越…… 就越……”时，用“the + 比较级, the + 比较级”结构。The mre careful yu are, the fewer mistakes yu will make.
三、用方框中短语的适当形式填空。（5 分）11. The students want t the histry f ancient China in the museum.12. We will prtect these palaces .
at all csts
at all csts, by the way, learn abut,ancient civilizatin, the bttm f
13. We put smething wet at the dr t stp the smke cming in.14. I'm ging t the supermarket this afternn. , d yu need anything?15. The study f helps us understand hw scieties develped ver time.
By the way
ancient civilizatins
Listen t the cnversatin. Then rle-play it.
Welcme back, Ella! Hw was yur trip?
It was great! We saw the Huku Waterfall n the Yellw River. Is that the lngest river in China?
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?
Imagine that yu are Yaming r Ella. Cntinue the cnversatin with a parent 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
Ask and answer.
What is the lwest place in China?
It’s the Aydingkl Lake.
Language pints
helped the develpment f ancient _____ 帮助了古代_____的发展
develpmentn. 发展；壮大
develpv. 发展
develped adj. 发达的；高度发展的
固定搭配with the develpment f随着……的发展
What are yur plans fr the develpment f yur cmpany?你打算怎样来发展壮大自己的公司？
2. What’s the biggest desert in China? 中国最大的沙漠是什么？
v. 抛弃；遗弃；擅离（职守）
（1）Camels are called the “ships f the desert”. 骆驼被称为“沙漠之舟”。（2）Never desert yur friends in truble. 永远不要在朋友困难时抛弃他们。
四、跨学科·地理 完形填空。As we all knw , the Yangtze River is the lngest river in China. But tday I’d lve t intrduce anther 16 . river t yu — the Yellw River. The Yellw River is the secnd 17 river in China. The “yellw” in its name is frm the mud（ 泥）and sand.
16.( ) A. famusB. littleC. shrtD. scary17.( )A. lngestB. highestC. biggestD. shrtest
Over 90% f the mud and sand in the Yellw River 18 the Less Plateau （黄土高原）. The Less Plateau is lse（松的） and 19 t wash away. As a result, in the seasn f 20 rainfall, a lt f mud and sand ges int the Yellw River.
18.( )A. cares abut B.cmes frm C. thinks fD. shuts t19.( )A. rightB. gdC. hardD. easy20.( ) A. simpleB. heavyC. bigD. light
The Yellw River starts frm the Qinghai- Tibet Plateau and its shape（ 形状）is 21 t “几”. It runs frm west t east 22 nine prvinces and antnmus regins and finally runs int the Bhai Sea. It cvers a(n) 23 f abut 752,443 square kilmetres.
21.( )A. differentB. hard C. similarD. cnnected22.( )A. inB. thrughC. dwnD. with23.( )A. areaB. weight C. lengthD. depth
The Yellw River is 5,464 kilmetres lng. 24 , it is shrter than the Yangtze River. Frm the study f Chinese 25 , we can knw the Yellw River is the mst imprtant birthplace f the Chinese civilizatin. 26 Chinese peple lived n this land, wrked hard and created a rich
24.( )A. ActuallyB. FinallyC. LuckilyD. Quickly25.( )A. scienceB. artC. climateD. histry26.( ) A. MdernB. Ancient C. YungD. Rich
culture. Tday, the area is still very imprtant 27 farming. What’s mre, the Yellw River als 28 an imprtant rle in Chinese culture. Peple created a lt f pems, 29 , and sngs abut it. The Yellw River is a(n) 30 f China, and we call it the “Mther River”.
27.( )A. asB. inC. frD. with28.( )A. playsB. makes C. bringsD. takes29.( )A. machinesB. stamps C. paintingsD. fds30.( )A. grupB. example C. prizeD. symbl
五、［周口期中］语篇填空。 （5 分） My favurite TV prgram is Human and Nature. And yesterday’s prgram talked 31. ________Antarctica. I knew little abut Antarctica befre, but nw I knw smething abut it. Antarctica is 32. __________fifth largest cntinent（洲） and it has an area f abut 14,200,000 square kilmetres. It’s cvered with cld thick ice 33. _______deep snw all year rund. Althugh it is very cld there, it has
many famus animals such as penguins and walruses（ 海象）. Peple dn’t live permanently（ 永久地）there. Only a few scientists will g there t d sme research, and their wrk 34. ________very imprtant t the wrld. I hpe 35.__________ g t Antarctica t learn mre abut it. But nw I have t study hard t make my dream cme true in the future.
六、［陕西中考改编］补全对话。 （10 分） [Andy (A) is an exchange student frm the UK. He and Binbin (B) are in the Nature Club.] A: Hi, Binbin. I’m ging t d a prject abut the Qinling Muntains. 36._________________________________ ? B: Sure. What d yu want t knw? A: Let me see. 37. __________________________________?
Culd yu tell me smething abut them
Where are they/ the Qinling Muntains
B: They’re in Shaanxi, the center f China. The muntains are mre than 1,600 kilmetres lng, running frm east t west and dividing nrthern and suthern China. They have a height f abut 2,000 metres in average abve sea level. The highest muntain is Munt Taibai. A: 38. _______________________________________? B: It’s mre than 3,700 metres high.
Hw high is it/ What's the height f it
A: I guess there must be many animals in the Qinling Muntains. Are there any valuable animals? B: 39.___________________________________ . Many valuable animals live there, such as pandas, glden mnkeys and s n. They are hme t wildlife.
Sure/ Of curse/ Yes/…