英语Developing ideas示范课课件ppt

这是一份英语Developing ideas示范课课件ppt，共24页。PPT课件主要包含了cook，tea，heavy rain，ˈrekɔːd，rɪˈkɔːd，pəˈfekt，dɪˈzɜːt，sunshine，produce，possible等内容，欢迎下载使用。
通过本课时的学习，学生能够：1. 听懂关于亚马逊雨林 “沸腾河” 的听力材料，提取关键信息；2. 掌握单词重音规则，准确朗读多音节词；3. 运用 “maybe” “perhaps” “It’s likely...”等表达谈论可能性；4. 了解自然未解之谜，保持对自然的好奇心。
Learning bjectives
Nature is full f secrets. They are waiting t be explained. These include black hles, the beginning f the universe, the Lch Ness Mnster and Bigft. These secrets awaken ur curisity and drive scientists t better understand the wnders arund us.
Read, match and say
Read the text abut nature.
Which f the secrets interests yu mst?
The black hle interests me mst. I think it's very mysterius. I want t knw what is inside a black hle. It drives scientists t explre space and awakens my curisity.
Match the pictures with the secrets.
D yu believe that the water temperature f a river can reach 90°C?
Let’s explre!
Listen t the talk and chse the crrect tpic.
a A disappearing river in SuthAmerica.b The life f the peple in theAmazn rainfrest.c A biling river in the Amazn rainfrest.
Listen and chse
What is it?It is a biling river as ht as 1________ ℃.What d the lcal peple d with it?·They 2________ with it.·They clean with it.·They make 3________ with it.·They smetimes g swimming in it,but nly after ⁴______.What's the speaker's pinin?It's ne f the mst ⁵________f the rainfrest.
What infrmatin shuld yu listen fr?
facts abut the river
peple’s activities
the speaker’s pinin
Read and think
Listen t the talk again and cmplete the prfile.
What is it?It is a biling river as ht as 1________ ℃.What d the lcal peple d with it?·They 2________ with it.·They clean with it.·They make 3________ with it.·They smetimes g swimming in it,but nly after ⁴___________.What's the speaker's pinin?It's ne f the mst ⁵________________ f the rainfrest.
amazing wnders
Listen and fill
Listening fr pinins Expressins such as I think, I believe and I guess shw peple's pinins. Remember: peple are sharing their ideas, s yu dn't have t agree. But yu shuld listen t the ther persn's pinins and be plite.
What’s the speaker’s pinin?
Read and underline
Listen and pay attentin t the stress.recrd a wrld recrd / recrd the temperatureprduce fresh prduce / prduce xygenperfect a perfect gift / perfect her skillsdesert the biggest desert n earth /desert his duty
Learn and listen
Listen again and read the wrds alud, then mark the stress f each wrd.
recrd a wrld recrd / recrd the temperatureprduce fresh prduce / prduce xygenperfect a perfect gift / perfect her skillsdesert the biggest desert n earth / desert his duty
​​/ˈprɒdjuːs/
/prəˈdjuːs/
​​/ˈpɜːfɪkt/
​​/ˈdezət/
Listen and mark
Read the table and guess what the cnversatin may be abut.
Read and guess
The turists and the guide are having a heated discussin. Let’s listen carefully.
Listen t the cnversatin and cmplete the table.
heat the river
700 kilmetres / 700 km
in the water
Why d the turists and guide have different ideas abut the biling river? Hw des scientific evidence change ur understanding f natural mysteries?Whse pinin d yu agree with? Why?
The turists nly guess the reasns, but the guide has mre facts and knwledge. The guide knws the truth frm research.
Think and answer
Scientific evidence helps us stp guessing. It helps us find the real reasns fr natural mysteries.
I agree with the guide. Because he has scientific evidence, like the distance f the vlcan.
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...
Listen again. Then talk abut hw the speakers discuss pssibilities.
Listen and say
Learning t learn
Talking abut pssibilitiesCuld, may and might are used t talk abut pssibilities. Wrds such as maybe and perhaps are used, t. We can als use the structure It'scertain/ likely / pssible that...
Read and learn
Listen and read. Then act it ut in grups.
Listen and act ut
What unslved secrets f nature d these pictures shw?
Lk and say
麦田怪圈，它是田野里出现的巨大圆形图案。
亚特兰蒂斯，大西岛(一座美丽富饶的海岛，据说已沉入海底消失)
Yes, it’s very strange. I’m curius abut the pssible reasns.
Have yu heard
Perhaps it’s because...
Chse ne unslved secret f nature and talk abut pssible explanatins.
→Useful expressins· The 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...
Chse and talk
Have yu heard f crp circles?
Perhaps it’s because sme peple make them as a kind f art.
It's likely that sme are made by humans, but thers are s big and perfect.
There's a pssibility that they are caused by unusual weather, like strng winds.
The truth may be a mix f bth human wrk and natural frces.
1. If yu find a new natural mystery, like a strange ht spring r a special rck, hw will yu study it?
I will first bserve it carefully and take phts r ntes. Then I will ask lcal peple abut its stries. Finally, I will check with science bks r the Internet t find pssible reasns.
The best way t understand nature is t bserve it, ask abut it, and learn frm it.
Think and say
2. What yu have learnt abut the secrets f nature?
Think and say
Nature is amazing and full f mysteries.
They awaken ur curisity and make us want t learn mre!
Nature is full f secrets!
Develping ideas (I)
We have listened t a talk and a cnversatin t get infrmatin and answer questins.
We have learnt abut the secrets f nature.
We have learnt the stress f wrds.