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1、Book 3 Unit 3 ,Back to the past,Scientific Assumption：the Real Cause of the Roman Empire Collapsing Climate change could have been responsible for bringing down the Roman Empire，scientists believe. Researchers studied ancient tree growth rings to show links between climate change and major events in
2、 human history such as migrations，plague and the rise and fall of empires.,话题语篇导读,They discovered that periods of warm，wet weather coincided with periods of prosperity，while droughts or varying conditions occurred at times of political upheaval such as the demise of the Roman Empire. To match the en
3、vironmental record with the historical one，researchers looked at more than 7,200 tree fossils from the past 2,500 years. The study，published in the journal Science，said：The rise and fall of past civilizations have been associated with environmental change，mainly due to effects on water supply and ag
4、ricultural productivity，human health and civil conflict.,Wet and warm summers occurred during periods of Roman and Medieval prosperity. Increased climate variability from AD 250 to 600 coincided with the demise of the Western Roman Empire and the turmoil of the Migration Period. Notes 1.plague n.瘟疫
5、2.coincide v.同时发生 3.upheaval n.剧变 4.demise n.终止，失败 5.turmoil n.动乱,Task 根据上文完成下列各题 1.According to the scientists，what caused the fall of the Roman Empire? 2.What do scientists think the summers were like during periods of Roman prosperity?,答案,Climate change.,Wet and warm.,Period One Welcome to the un
6、it & Reading,课前预习 梳理记忆理解,课堂讲义 感悟归纳应用,当堂达标 综合巩固反馈,.单词自测 1. n. 文明 vt. 使文明，使开化 2. n. 讲座 3. vt. 创建，兴建 (过去式) (过去分词) 4. vi. (火山等)爆发 n. 爆发，喷发,答案,词语识记,课前预习,civilization,civilize,lecture,found,founded,founded,erupt,eruption,5. vi. 涌流，倾泻； vt. 倒出(液体) 6. adj. 不幸的，遗憾的 7. vt. 装饰，装潢 n. 装饰；装饰品 8. vt.& vi. 逃避，逃跑；迅速离
7、开 (过去式) (过去分词) 9. n. 研究者，调查者 n. 调查，研究； vt. 从事的研究，为而做研究,pour,unfortunate,decorate,decoration,flee,fled,fled,researcher,research,答案,答案,10. n. 灾难 11. vt. 摧毁，毁坏 12. adj. 商业的，贸易的 13. adj. 富有的，富裕的 n. 财产，财富 14. adv. 渐渐地，逐渐地 adj. 逐渐的 15. adj. 文化的 n. 文化 16. n. 废墟；毁坏； vt. 破坏，毁灭,disaster,destroy,commercial,wea
8、lthy,wealth,gradually,gradual,cultural,culture,ruin,答案,17. n. 遗物，遗迹，遗骸 vi. 剩下，留下 adj. 剩余的 18. prep. 在之下 19. n. 材料；物质； adj. 物质的 20. vi. 爆炸 n. 爆炸 adj. 爆炸的，易爆炸的 21. adv.& adj. 在附近(的),remains,remain,remaining,beneath,material,explode,explosion,explosive,nearby,.短语自测 1.protect. 保护免受 2.be known 作为而出名 3.ta
9、ke 夺取；接管 4.be buried 被活埋 5.be decorated 装饰着 6.turn 证明是；结果是 7.break (身体)垮掉；分解；(机器等)出故障 8.together 和一起 9.cut 砍倒 10.result 导致,答案,from,as,over,alive,with,out,down,with,down,in,答案,1,2,3,4,5,.阅读课文，选出最佳答案 1.What happened soon after the ruins of Pompeii was founded? A.It was well protected by the local gove
10、rnment. B.It was dug by the Italian archaeologist Giuseppe. C.It was badly damaged by people digging in the area for treasure. D.The bodies of people were buried by local people. 答案 C,课文预读,答案,2.When did the Italian government start to protect the Roman city? A.In 89 BC. B.2,000 years ago. C.100 year
11、s ago. D.In 1860. 答案 D,1,2,3,4,5,答案,3.Which of the following statements is NOT true? A.Both of the two cities are lost civilizations about 2,000 years ago. B.Both of the two cities were discovered by local people. C.Pompeii was destroyed by a volcano while Loulan was gradually covered over by sandst
12、orms. D.Pompeii was in Italy while Loulan was in China. 答案 B,1,2,3,4,5,答案,4.Which is NOT true about Loulan? A.It was on the Silk Road. B.It was a wealthy commercial city. C.It disappeared suddenly. D.Not all people think it was covered over by sandstorms. 答案 C,1,2,3,4,5,答案,5.The purpose of writing t
13、his passage is . A.to show how happy the writer was to have such a chance to visit the sites B.to arouse peoples sense of protecting civilizations C.to compare the civilizations of Pompeii and Loulan D.to tell us how Pompeii and Loulan were destroyed,1,2,3,4,5,B,答案,.阅读课文完成下表，每空一词,Ancient,took,stoppi
14、ng,disappeared,discovered,alive,sandstorms,writing,government,explorer,答案,.难句分析 When I walked around the city，I saw streets just as they had been，with stepping stones along the road so you did not have to step in the mud on rainy days! 句式分析：when引导 从句，主句的主干是I saw streets，而as they had been用作 状语，介词短语wi
15、th stepping stones along the road是streets的 ，连词so后接 从句。 自主翻译：,返回,答案,时间状语,方式,结果状语,定语,当我在城中漫步时，我看到保持原样的街道，沿路都有垫脚石，这样下雨天你就不用在泥泞中行走了！,课堂讲义,重点单词,found,(1)(教材P42)The city was founded in the 8th century BC. 这座城市建立于公元前8世纪。 (2)The story is founded on fact. 这故事有真事作根据。 (3)He laid the foundation of his success by study and hard work. 他通过学习和努力工作为成功打下了基础。,语境感悟,归纳拓展,(1)found vt.兴建，创建，创办 be founded on/upon建立在之上 (2)foundation n.基础；地基,解析答案,(1)My parents marriage love and mutual respect. 我父母的婚姻建立在爱和相互尊重的基础之上。 (2) in the early 20th century，the school keeps on inspiring childrens
