人教版必修2+Unit1+Cultural+relics+Warming+up+and+reading(共39張PPT)

1、The Great WallClassical Gardens of Suzhou (1997) What is a cultural relic? A cultural relic is something that can represent cultures, which has survived for a long time to tell the history, and it is very rare and valuable. Cultural relics can be craftworks, buildings, paintings, music and so on.Can

2、 you give me some examples of cultural relics that you know at home and abroad?disappearance ofcultural relicsillegal businessunawareness of its importanceignorance by localsstealingSoWe call for the protection of cultural relics文化遺產(chǎn)日文化遺產(chǎn)日 the Second Saturday of JuneNatural disasters Discussion What

3、 can we do to protect cultural relics? Have you ever seen a piece of amber?What do you know about it?What is amber?琥珀是史前松樹(shù)脂的化石。琥珀是由千琥珀是史前松樹(shù)脂的化石。琥珀是由千萬(wàn)年前植物所分泌出來(lái)的樹(shù)脂萬(wàn)年前植物所分泌出來(lái)的樹(shù)脂, 經(jīng)過(guò)地殼經(jīng)過(guò)地殼變動(dòng)而深埋地下變動(dòng)而深埋地下, 逐漸演化而成的一種逐漸演化而成的一種天然化石。形成于天然化石。形成于4000萬(wàn)年至萬(wàn)年至6000萬(wàn)年萬(wàn)年前前, 琥珀的主要成分是碳、氫、氧以及琥珀的主要成分是碳、氫、氧以及少量的硫少量的硫, 硬度硬

4、度2-3, 比重比重1.05-1.10, 熔點(diǎn)熔點(diǎn)150C-180C, 燃點(diǎn)燃點(diǎn)250C-375C。琥珀是。琥珀是很很“澀澀”的物質(zhì)的物質(zhì), 沒(méi)有兩塊琥珀是完全相沒(méi)有兩塊琥珀是完全相同的。品種有金珀、蟲(chóng)珀、香珀、靈珀、同的。品種有金珀、蟲(chóng)珀、香珀、靈珀、石珀、花珀、水珀、明珀、蠟珀等石珀、花珀、水珀、明珀、蠟珀等, 尤以尤以含有完整昆蟲(chóng)或植物的琥珀為珍貴含有完整昆蟲(chóng)或植物的琥珀為珍貴 。What characteristics does the amber have?It has a beautiful yellow-brown color.It feels as hard as stone.It easily melt when heated.Once it is heated, it can be made into any shape.Can you imagine what a room made of amber looks like?rawrawamberamberAmber Room插入視頻插入視頻琥珀屋琥珀屋http:/ Petersburgin RussiaHomework1.