六年上册P25 Story time 课文原文：
Zip: Where did you buy that?
Boy: Dad bought it in Chinatown.
But I don’t know where it is.
Zoom: How can I get to Chinatown?
Man: Maybe that way. I’m not sure.
Zip: Is Chinatown far from here?
Old man: Chinatown? You are walking the wrong way. You can take the No. 8 bus to go there.
Zip: We are here!
Zoom: Yeah.
Zip: look, here it is.
Zip: I want three.
Zoom: One is enough.
Zip: Too tart!
Zoom: I always tell you, “Look before you leap.”