牛津译林版8A Unit3 A day out welcome to the unit课件(共30张PPT)
A: How long is the Golden Gate Bridge?
S: It’s very long, about 1.7 miles.
A: How wide is the bridge?
S: It’s 90 feet wide.
A: The bridge is made of steel, isn’t it?
S: Yes, and it weighs over 100,000 tons.