to ________their people Purpose to ________ them from their _______ Material——The Great Wall a ________ of Chinese civilization Meaning a ________ of the Chinese nation

S1: What are the material of the Great Wall?S2: The early walls were made of … What’s the length of the Great Wall?S3: It’s about…

Qin dynasty ________________________

total length ____________ ____________

Ming dynasty ____________ ____________

beginning time ____________ ____________

packed earth and wood

about 8 800 kilometers long

stone and brick

about 2 500 years ago

protect

separate

enemies

treasure

symbol