高一英语 外研版必修3MODULE 6课件

高一英语 外研版必修3MODULE 6课件

the great wall of china

the longest man-made structure

6,300 kilometres long

dates from the ming dynasty

eastern end---

western end---

shanhaiguan

jiayuguan

hong kong international airport

the biggest civil engineering project of all time

took six years to build & cost us$20 billion

the three gorges dam

the largest hydro-electric dam in the world

more than 1.5 kilometres wide across

reservoir---

more than 500 kilometres long

do you know what the three gorges are?

qutang gorge is famous for its high cliffs.

wu gorge is known for its beautiful scenery.

xiling gorge is a dangerous gorge, and it has many ancient relics. but some of the beautiful scenery disappeared. why?

walls of stone to hold back clouds & rain till a smooth lake rises in the narrow gorges.

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