英语八年级下册Section A图文课件ppt

这是一份英语八年级下册Section A图文课件ppt，文件包含1第一课时SectionA1a－2dppt、U7SectionA1bmp3、U7SectionA2amp3、U7SectionA2bmp3、U7SectionA2dmp3、U7Aswf、u7A_2dswf等7份课件配套教学资源，其中PPT共42页， 欢迎下载使用。

D yu knw these muntains?
meter(=metre)
the Caspian Sea
abut 9,600,000 square kilmeters in size
1,025 meters deep
The Caspian Sea
6,671 kilmeters lng
8,844.43 meters high
Match the facts yu knw.
Fill in the table.
highest/ tallest
lwest/ shrtest
Listen and cmplete the sentences.
1. Qmlangma is ______ than any ther muntain in the wrld. 2. The Sahara is ____________ desert in the wrld.3. The Caspian Sea is ____________ f all the salt lakes. 4. The Nile is ____________ river in the wrld.
the biggest
the deepest
Teacher: Yesterday, we learned sme imprtant gegraphical facts. I hpe yu all still remember them. I’m ging t test yu nw by asking a few questins. First, what’s the highest muntain in the wrld?
Tapescripts
“比较级+ than any ther +名词+其他” 表示“比其他任何一个……都……”注意：该结构可与“the+最高级+其他”相互转换。
Teacher: That’s right. And wh can tell me what the Sahara is?
The Sahara is the biggest desert in the wrld.
Qmlangma! It’s higher than any ther muntain in the wrld.
Teacher: Very gd. And which is the deepest salt lake in the wrld?
The Caspian Sea is the deepest f all the saltlakes.
Yu’re all s smart! Nw, fr the last questin, which is the lngest river in the wrld?
“the+序数词+最高级+单数名词+in…”表示“是……中的第几……”
I knw! The Nile is the lngest river in the wrld.
And the Amazn is the secnd lngest river in the wrld.
It seems that yu knw the answers t all my questins. Gd jb!
Use the infrmatin in 1b t make cnversatins.
What is the highest muntain in the wrld?
What is the biggestDesert in the wrld?
The Sahara.
What is the deepest salt lake in the wrld?
The Caspian Sea.
____ The Yangtze River is abut ________ kilmeters lng and the Yellw River is __________ kilmeters lng.____ China has the biggest ppulatin in the wrld. It’s a lt bigger than the ppulatin f the US.
Listen and number the facts [1-4] in the rder yu hear them.
6,300 5,000 5,464 300
____ China is ver ________ years ld. It has a much lnger histry than the US. The US is nt even_______ years ld.____ China is almst as big as the US, and it is the biggest cuntry in Asia.
Listen again and fill in the blanks in 2a with the numbers in the bx.
___ The Yangtze River is abut ______ kilmeters lng and the Yellw River is ______ kilmeters lng.___ China has the biggest ppulatin in the wrld. It’s a lt bigger than the ppulatin f the US.
___ China is ver ______ years ld. It has a much lnger histry than the US. The US is nt even _____ years ld.___ China is almst as big as the US, and it is the biggest cuntry in Asia.
Mike: Hi, I’m Mike. I’m frm the United States. By: Welcme t ur class, Mike. We’re happy t meet yu.Mike: Can yu tell me a bit mre abut China? Girl: Sure! Did yu knw that China is ne f the ldest cuntries in the wrld? It’s ver 5,000 years ld.
中国是世界上最古老的国家之一
Mike: Yes, I did. It’s much lder than my cuntry - in fact, the United States is ne f the yungest cuntries in the wrld. It’s nt even 300 years ld.
By: And China has the biggest ppulatin, t. It’s a lt bigger than the ppulatin f the United States.
Mike: But China is abut the same size as the US, right? Girl: Yes, and it’s the biggest cuntry in Asia. We als have sme famus rivers. The Yangtze River is the lngest river in Asia. It’s abut 6,300 kilmeters lng.
中国和美国国土面积差不多大
Mike: Ww! I didn’t knw that. I thught the Yellw River was lnger. By: N, the Yellw River is 5,464 kilmeters lng. But bth rivers are very imprtant t China.
Make cnversatins using the infrmatin in 2a.
Yes, I did. It’s much lder than my cuntry.
Did yu knw that China is ne f the ldest cuntries in the wrld?
Did yu knw that China is the biggest cuntry in Asia?
Yes, I did. It’s almst as big as the US.
Rle-play the cnversatin.
Guide: Feel free t ask me anything n tday’s Great Wall tur.
Turist 1: Hw lng is the wall?
Guide: Ah, the mst ppular questin! If we’re nly talking abut the parts frm the Ming Dynasty, it’s abut 8,850 kilmeters lng. This makes it the lngest wall in the wrld.
feel free t d sth.随便做某事
Turist 2: Ww, that’s amazing! Why did the ancient emperrs build the wall?
Guide: The main reasn was t prtect their part f the cuntry. As yu can see, it’s quite tall and wide. As far as I knw, there are n ther man-made bjects as big as this.
Turist 3: Is Badaling part f the Ming Great Wall?
Guide: Yes, it’s the mst famus part.
1. Hw lng is the Great Wall?
If we’re nly talking abut the parts frm the Ming Dynasty, it’s abut 8,850 kilmeters lng.
2. Why did the ancient emperrs build the wall?
The Badaling part.
The main reasn was t prtect their part f the cuntry.
3. Which part is the mst famus part f the Ming Great Wall?
1．It's a lt bigger than the ppulatin f the US. (中国的)人口数量比美国多得多。
a lt 意为“很；非常”，在句中用来修饰形容词的比较级
bigger，表示“……得多”。在比较级结构中，为了强调形容词或副词的程度，可在其前用a lt，a little，a bit，much，even，any，still等副词(短语)修饰。
例句：Please speak a little/a bit luder.请稍微大点声说话。
(1)a lt 作副词短语意为“非常”时，可用来修饰动词。
(2)a lt f＝lts f 意为“许多；大量”，既可修饰可数名词，相当于many，也可修饰不可数名词，相当于much。
例句：She has spent a lt n clthes.她在买衣服上花费很多。
例句：There were a lt f/lts f peple in the cinema.电影院里有很多人。
2．the ppulatin f
the ppulatin f… 意为“……的人口数量”，可位于句首作主语，用来表示某地的人口数量，其同义短语为：…has a ppulatin f。the ppulatin f… 作主语表示人口“多”，要用large或great 来修饰；表示人口“少”时要用small来修饰。
例句：The ppulatin f India is abut 1.3 billin.＝India has a ppulatin f abut 1.3 billin.印度大约有十三亿人口。
询问某地有多少人时，要用句型“What's the ppulatin f…？”“Hw large is the ppulatin f…？”不用能hw many，hw much提问。
例句：What's the ppulatin f yur hmetwn？＝Hw large is the ppulatin f yur hmetwn？你家乡的人口是多少？
3．as far as I knw
as far as I knw 是一个固定的表达方式，还可以说成s far as I knw，意为“据我所知”。其中as far as 作从属连词，意为“就……而言”，引导状语从句，强调程度或范围。
例句：As far as I knw，that is highly unlikely.据我所知，那很不可能。
as far as/s far as 意为“与……的距离相等，直到……为止；就……而言”。其后可接地点名词，也可引导状语从句；否定句中多用s far as。as far as常与be cncerned 连用，意思是“就……而言”。
例句：Alan will g with yu as far as Lndn.艾伦将与你同行到伦敦。
As far as the weather is cncerned，I d nt think it matters.至于天气，我认为无关紧要。
Ⅰ.根据句意及首字母提示完成句子。1．The Sahara is abut 9，600，000 s ________ kilmeters in size.2．It's abut 2，000 m________ frm my hme t my schl.3．The lake is d________．Yu mustn't swim alne in it.4．Li Shizhen was a famus dctr in a________ China.5．It's ur duty t p________ the wild animals arund us.