人教版（2024）英语八年级下册 Unit 4 Section A(3a—3d) （课件+音频）

这是一份初中英语人教版（2024）八年级下册（2024）Unit 4 The Wonders of NatureSection A教学演示课件ppt，文件包含第2课时SectionA3a3dpptx、八下英语人教课文朗读Unit4SectionA3amp3等2份课件配套教学资源，其中PPT共20页， 欢迎下载使用。
What is the name f the river mentined in the vide?
It’s the Yellw River.
Is it the lngest river in China?
N, the lngest river is the Yangtze River.
D yu knw anything else abut the Yellw River r the Yangtze River?
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.
顺便提一下；附带问一句
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.
help…t develp 帮助…… 发展
What d Yaming and Ella knw abut these rivers? Read the cnversatin again and cmplete the table.
civilizatins
Listen t the cnversatin. Then rle-play it.
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
Other gegraphical features in China
Language pints
1、The Yellw River is 5，464 kilmetres lng.黄河全长5 464公里。
本句采用了“主语＋be动词＋数字＋单位＋形容词(lng/wide/tall/high/deep).”的句型结构，该结构用于精确描述物体的尺寸，如长度、宽度、高度或深度等。
kilmetres lng表示“6 300千米长”，是“基数词+单位词+形容词”结构。
物体长、宽、高、深等的表达基数词+单位词+形容词(lng、wide、high、deep等)基数词+单位词+in+名词(length、width、height、depth等)
The river is 20 metres wide (= 20 metres in width). 这条河宽20米。
2、We shuld prtect them at all csts.我们应该不惜任何代价保护它们。
短语at all csts在句中作状语，意为“不惜任何代价”。在本短语中核心词cst用复数形式，其同义短语为at any cst。
(1)作名词时，其常用短语还有：at the cst f (sth) “以牺牲……为代价”；cut/reduce csts“降低成本”。
(2)作动词时，其用法为：sth cst(s) sb＋金钱，常与sb spend(s)＋金钱＋n/(in) ding sth互相转换。
3、helped in the develpment f ancient civilizatins有助于古代文明的发展。
develpment n. 发展；壮大
[不可数名词]由“develp(v.发展)+-ment(名词后缀)”构成。(with) the develpment f (随着)……的发展
We believe China will cntinue t lead the wrld in technlgy develpment. 我们相信，中国在科技发展方面将继续引领世界。
一、从方框中选出恰当的单词或短语填空。 waterfall　civilizatin　even　means　at all csts1．Ancient Egyptian left many amazing pyramids fr peple t explre.2．The painter Wu Chengyan in Shangqiu helps his hmetwn develp a .
civilizatin
at all csts
3．【地方美景】 Huanggushu in Guizhu is the largest and mst beautiful ne in China.4．If yu think yu have a better idea abut the schl trip，by all ，tell us as sn as pssible.5．Jim stayed up late fr his exam last night.He was s tired that he fell asleep in class.
二、在空白处填入一个适当的单词或括号内单词的正确形式。1．The (develp)f new technlgy makes ur lives easier and better.2．【航天事业】This spaceship travels the (far) in ur slar system(太阳系)．3．The ld tree in the park is abut 500 metres (tall)．
4．【学科融合】The Grand Canyn (call) a natural wnder because f its amazing rck layers.5． the way，d yu knw the desert plant's name?6．We can bth g t the library t read bks visit the park fr a walk this weekend.