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北京版英语六年级上册《UNIT THREE HOW DID YOU GO TO HANGZHOU Lesson 11》优质课ppt课件
about 10 hours
长安---天竺
（西安）（印度）
50000 li
17 years
How was traveling
in the old days ?
took a carriage
took a sedan chair
rode horses
walked
In the old days, people…
slow
difficult
dangerous
How is traveling now?
How is traveling now?
Who invented those vehicles?
Who invented those vehicles?
Some smart people did.
Edison
Baird
the Wright
brothers
Mr. Bell