






外研版 (2019)选择性必修 第四册Unit 5 Into the unknown教学演示ppt课件
展开Fur ancient civilisatins are universally knwn by the wrld, such as Ancient India, Ancient Babyln, Ancient Egypt and Ancient China.
Pre-reading
Besides, Ancient Greece and Ancient Rman play an imprtant part n ancient civilisatins.
What ther ancient civilisatins d yu knw f?
1. What d yu knw abut these ancient civilizatins?
They were very ppular befre the ancient civilizatins suddenly disappeared.
2. What might be the reasns behind their cllapse?
The destructin f mankind might be the reasns behind their cllapse.
While-reading
Read the passage and find ut the pssible reasns fr the disappearance f Maya civilisatin.
The way that the Maya peple changed the landscape arund them may have been ne f the reasns behind the disappearance f their civilisatin. Turning wetlands int fields fr grwing grains, digging huge canal systems and cutting dwn mre trees fr cnstructin reduced their ability t cpe with natural diasters. When thse natural disasters, such as drughts, struck, the Maya wuld have faced fd shrtages, cnficts and eventually, the dwnfall f their cities.
Chse the tpic sentences and write them backt the passage.
a Maya civilisatin has been surrunded by mystery since its rediscvery in the 19th century. b But the greatest mystery f all is what caused the Maya t abandn mst f their great cities. c Althugh his thery has been dismissed by schlars, it shws hw pwerful the secrets f Ancient Maya civilisatin are amng peple. d Research als suggests that thse natural disasters may have led t the decline f the Maya. e Meanwhile, the rise and fall f this civilisatin must als leave us thinking abut ur wn past, present and future.f Sme research seems t indicate that the Maya peple themselves may have played a part in their dwnfall.
The mysteries f the Maya
Para. 1: Intrduce the tpic
Para. 2: the ____________ f Maya civilisatin
Para. 3: the __________ f Maya civilisatin
Para. 4-5: The _______ fr the disappearance f Maya Civilisatin
Para. 4: ________causes
Para. 5: _________causes
Para. 6: the mysteries f Maya Civilisatin remain t be _______
achievements
MAYA CIVILISATION
Organise infrmatin frm the passage and cmplete the file f Maya civilisatin.
Pssible reasns fr cllapse
arund 1800 BC t 1100 AD
frm _____________ t _________________
1 human causes - reduced the ability t deal with __________________________________________ ______________________________huge expansin f the ____________2 natural causes- a series f __________ between 700 AD, each ________________________________.
Central America
natural disasters
turning wetlands int fields
digging huge canal systems
lasting fr a cuple f years
What is the authr’s purpse in starting the passage with the stry abut William Gadury?
T intrduce Maya civilisatinT amuse the readersT emphasize the imprtance f Maya civilisatinT infrm us the lcatin f the Maya city
What can’t we infer frm the passage?
Maya civilisatin made a difference t ur mdern sciety.Bth human causes and natural causes led t Maya civilisatin disappearing.Peple still can’t slve the mystery f Maya civilisatin.By 700 B.C., the Maya civilisatin was at its peak.
After-reading
Think and share:
What ther things d yu think culd destry a civilisatin? Share an example with the class.What lessns can yu learn frm the cllapse f Maya civilisatin? Hw can this infrmatin help the develpment f tday’s sciety?Which f the arguments in the passage did yu find the mst cnvincing? Give yur reasns.
Cmplete the cultual cmparisn with the infrmatin frm the passage.
Cmparing the highly-sphisticated civilisatins f the Maya and Ancient China reveals sme surprising similarities. They bth pssessed a detailed understanding f ___________ and astrnmy, which helped them maintain an accurate __________ and a cmplex _______________ that used signs t represent sunds and meanings. It can therefre be difficult t explain why, despite their excellent cnstructin
skills, the Maya never learnt t use ___________________ __________________, while the ancient Chinese did. Facts such as these add t the mystery surrunding Maya civilisatin, driving peple t find ut why it ______________ while thers, such as Ancient China, survived and thrived.
mathematics
writing system
wheels, metal tls r
even animal pwer
disappeared
1.Based n this, he believed he had sptted an unknwn Maya city buried deep in the jungle.据此,他相信自己发现了一座隐藏于丛林深处的未为人所知的玛雅城市的位置。language pints:(1)buried deep in the jungle 过去分词短语作后置定语。把...埋到...里 be buried in 专心致志于...(2)spt v.认出;弄脏 n.地点;斑点 n the spt 当场;在现场2.What is mst extrardinary abut these cmplex structures is hw they were built withut the use f wheels, metal tls r even animal pwer.这些复杂建筑最不同寻常之处在于,在没有使用机轮、金属工具甚至畜力的情况下,玛雅人是如何建造他们的。思考:what和 hw分别引导什么从句?what引导主语从句,且在从句中充当主语的成分。hw引导表语从句,在从句中作方式状语。Sme tld tales f_______they had helped them survive during bad weather.
3.Meanwhile, the rise and fall f this civilizatin must als leave us thinking ahut ur wn past, present and future.同时,玛雅文明的崛起与衰落必定也让我们思考自己的过去、现在与将来。4.Its nce-great cities fell int ruin, leaving varius mysteries fr later peple t slve.曾经恢宏的城市沦为废墟,留下各种谜团等待后人解开。leave 的复合结构:leave+宾语+宾补(ding/dne/t d/n./adj./adv./介词短语)(1)leave sb/sth ding sth使某人/某物保持...状态Dn’t leave her________(wait) utside in the rain.(2)leave sb/sth dne 表示被动或动作已经完成He gt up slwly, leaving the lunch_________(finish).(3)leave sb/sth t d 表示让...去做某事,表将来或目的He left me ______(d) what he tld but I refused his rder.(4)leave the windw pen/ leave the light n/ leave the key at my ffice
5.By changing the landscape in this way, it is pssible that the Maya peple unknwingly reduced their ability t deal with natural disasters.通过这样改变地貌,玛雅人可能在不知不觉中减弱了自己应对自然灾害的能力。思考:that引导什么从句?常见的后面接t d作后置定语的名词?(1)it作形式主语,that引导真正的主语。(2)抽象名词常常用不定式做后置定语,如ability, freedm, chance, chice, pprtunity, strength, way, desire 等;此外序数词后也常用t d做定语。6.On tp f all this was an achievement unique in the Americas at that time: a true writing system.除此之外,还有项当时在美洲独一无二的成就:一套真正的文字系统。完全倒装:将谓语完全置于主语之前的句子。n tp f 除...之外他除了薪金之外还拿奖金。He gets bnus n tp f his salary.
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