初中英语外研版（2024）八年级下册（2024））Understanding ideas教课课件ppt

这是一份初中英语外研版（2024）八年级下册（2024））Understanding ideas教课课件ppt，共17页。
1.What's the envirnment like?
The envirnment is a desert, s it has a ht and dry climate. There is little rainfall, s the area faces a water shrtage. It is difficult t survive here.
2.Hw des the system wrk?
The prject uses wells and undergrund canals t prtect water frm drying up. The water runs t different places. It all ws peple t grw plants fr fd in such a difficult envirnment.
Learning Objectives
Be able t intrduce a prject r an idea thrugh which humans transfrm nature.Be able t list facts and explain the wrking principle f the prject r idea.Be able t summarize the imprtance f the prject r idea and lk frward t its future develpment prspects.
Presentatin
Read quickly and match .
Paragraph 1Paragraph 2Paragraph 3Paragraph 4
a: The way the karez system wrks and its imprtanceb: The climate f the areac:The challenge and future f the system d: The lcatin f the Flaming Muntains
1-d,2-b,3-a,4-c
Where are the real Flaming Muntains?
Read Paragraph 1 carefully and slve the prblems .
They are in Turpan, in the east f the Xinjiang Uygur Autnmus Regin.
1.Hw ht is it here? 2.Hw ht is it here?
Read Paragraph 2 carefully and slve the prblems .
The desert sand can be as ht as 80℃ in midsummer.
Rainfall in Turpan is nly 16 mm a year.
1.Hw des the karez system wrk? 2. Hw lng are the undergrund canals?
Read Paragraph 3 carefully and slve the prblems .
It includes mre than 1,000 wells and large undergrund canals. Water frm the muntains falls int the wells and then runs undergrund in the canals.
They are ver 5,000 km lng, nearly as lng as the Yellw River!
What prblem des the area face nw?
Read Paragraph 4 carefully and slve the prblems .
The area faces a water shrtage.
Retell the text . The karez system
Why is there such a system?• Turpan is knwn as ne f the 1 __________ in the wrld.• It's als ne f the 2 __________ in China.• It has a terrible 3 __________ fr peple t survive.Hw des it wrk?• There are mre than 1,000 4 __________ appearing every 20–30 metres.• Under the wells are large 5 __________ canals.• Water falls int the wells and 6 __________ in the canals. It is kept 7 __________.Why is it imprtant?• The system allws peple t 8 __________ in difficult envirnment.• It's amng the 9 __________ f ancient China.Hw is it nw?• The area is facing a(n) 10 __________.• Yung peple are taking actin t 11 __________ the karez system.
答案：1. httest places 2. driest places 3. climate 4. wells 5. undergrund 6. runs 7. frm drying up 8. grw plants fr fd 9. three great prjects 10. water shrtage 11. prtect
Wrk in pairs
1 Why des the writer mentin “the Flaming Muntains” at the beginning?2 What can yu tell abut Turpan frm “ck an egg n the desert sand”?3 What’s the meaning f the title?
By mentining this well-knwn place frm Jurney t the West, the writer cnnects with readers, attracts their attentin and makes them interested in reading n.
It tells us that Turpan is very ht.
The title means the karez system is like a hidden "river" that brings life t Turpan's deadly desert. It quietly carries water undergrund s peple can survive and grw fd in the terrible climate.
Think and share.
1. What fact frm the passage d yu find the mst interesting? Why?
Fr me, the mst interesting fact is that the system was cmpleted with nly hand tls. The canals are s lng and there are s many wells. It is difficult t d the wrk with machines, but using hand tls is even mre difficult.
2. With mdern technlgy, d yu think it is still necessary t keep the karez system? Why r why nt?
I think it is necessary t keep the karez system. Althugh mdern technlgy can slve sme prblems, the karez system still plays an imprtant rle. It wrks well and is an imprtant part f ur histry. We can use bth mdern technlgy and the karez system t imprve the living envirnment in this area.
What did yu learn?
Share yur ideas with the class .
"The Earth des nt belng t us. We belng t the Earth." — Marlee Matlin地球不属于人类，人类属于地球。
English Prverb