单词辨音(共5小题；每小题1分，满分5分)

小题1:postcode

A．adopt

B．noble

C．observer

D．astronomy小题2:charge

A．reward

B．appearance

C．target

D．forward小题3:classify

A．procedure

B．concern

C．associate

D．correction小题4:anxious

A．distinguish

B．lemon

C．brand

D．pond小题5:motherland

A．breath

B．birthplace

C．southern

D．healthy