英语八年级下册（2024））Developing ideas说课课件ppt

这是一份英语八年级下册（2024））Developing ideas说课课件ppt，共24页。PPT课件主要包含了Objectives，大自然的奥秘，Problem，Solution，Opinion，cook，tea，heavy rain，sunshine，produce等内容，欢迎下载使用。
通过本课时的学习，学生能够：1.理解并掌握本课生词的用法。2.学会使用表可能性的词语与句型谈论事物。3.通过小组合作，学会描述自然的奥秘，培养探索自然科学的兴趣。
Nature is full f amazing secrets. Many strange plants, animals and natural mysteries are waiting fr us t explre.What secrets f nature d yu knw?
Pre-listening
Lk at the pictures. What can yu see?
D yu knw these secrets f nature?
the black hle黑洞
the Bigft大脚野人
It is a strange space bdy. Its strng gravity pulls all things, even light.
It is a huge wild man in stries. It lives in frests and hides frm peple.
the Lch Ness Mnster尼斯湖水怪
the beginning f the universe宇宙起源
It is a strange big creature. It lives in a deep lake and few peple see it
The universe started frm a great big explsin lng lng ag.
the Amazn rainfrest
What is it?
Lcated in Suth America, it is the wrld’s largest frest. It has many plants and animals and keeps ur earth healthy.
Let’s watch a vide abut the Amazn rainfrest.
While-listening
Listen t the talk and chse the crrect tpic.
a. A disappearing river in Suth America.b. The life f the peple in the Amazn rainfrest.c. A biling river in the Amazn rainfrest.
What infrmatin shuld yu pay attentin?
What infrmatin shuld yu listen fr?
Listen again and fill the blanks.
Listen and cmplete the table.
amazing wnders
Script：Guide: Welcme t the Amazn rainfrest!Nw, I'd like t present a special river t yu. Since ancient times, peple have talked abut a biling river in the rainfrest. Many peple laugh at this stry, but in fact, it's true! The water can be as ht as 86 °C. Peple here ck with it, clean with it and make tea with it! There's n need t make a fire! The water nly cls dwn after heavy rain. Then peple g swimming in it. I think it's ne f the mst amazing wnders f the rainfrest.
Fllw the pattern and try t retell.
What causes the bling river?
heat the river
700 kilmetres
in the water
Listen again and find: Hw did the speakers discuss pssibilities？
Pst-listening
Script：Guide: Ancient peple here thught that the sun makes the river ht.By: It's pssible, right? There's a lt f sunshine here.Guide: Actually, it's unlikely fr the sun t heat the river that much. Just think f utdr swimming pls. Wuld the water get t 86 °C in summer?Girl: Yu're right. But hw abut vlcanes? Perhaps the river passes a vlcan and becmes ht?Guide: Gd guess! But I'm afraid that's nt the reasn. The nearest vlcan is abut 700 kilmetres away.Girl: I have anther idea! Maybe there are sme chemicals in the water. They can prduce heat. I've studied them at schl.Guide: That's pssible. But scientists haven't fund such chemicals in the river yet. They need t d mre research…
What are the unslved secrets f nature in the pictures?
Crp circles 麦田怪圈 麦田怪圈出现在英国。田地里农作物被压平后形成的大型几何图案，大多在一夜之间神秘出现。有人认为是外星人留下的信号；有人猜测是龙卷风、等离子气流等自然现象造成。
Atlantis亚特兰蒂斯亚特兰蒂斯是传说中的失落古城。传说中，它是一座富庶强盛、文明高度发达的岛国。但后来岛上的人们变得贪婪堕落触怒了众神。一夜之间，亚特兰蒂斯遭遇地震洪水，最终沉入深海。
Crp circles
Sme strange rund shapes appear in farm fields at night. Peple have many ideas, but n ne knws their real secret.
It is a famus ancient city. It was rich and great, but it sank int the sea and disappeared frever.
Wrk in pairs. Chse ne unslved secret f nature and talk abut pssible explanatins.
➤Useful expressinsThe truth may be…It’s likely that…Perhaps it’s because…It’s prbably a result f…There’s a (strng) pssibility that…It’s pssible that…There’s a chance that…
A: Have yu heard f : Yes, it’s very I’m curius abut the pssible reasns.A: Perhaps it’s because f sme unknwn : It’s likely that ... create these special A: There’s a chance that make : The truth may still be a big mystery t us all.
Pssible versin:A: Have yu heard f crp circles?B: Yes, it’s very strange. I’m curius abut the pssible reasns.A: Perhaps it’s because f sme unknwn natural pwer.B: It’s likely that strange winds create these special shapes.A: There’s a chance that sme peple make them at night.B: The truth may still be a big mystery t us all.