(1) er,ir,ur,通常读长音/ə:/.例如：term,her,girl,bird,nurse,hurt
(2) or在/w/之后也读/ə:/.在其他情况下读/:/例如：word,worker,world,worm,afford,corn,horse
(3) er,ir,ur,or在非重读音节里读短元音/ə/,如：river,farmer,teacher,doctor.
试读下列单词：ordinary,torch,worth,merchant,curtain
41.从A、B、C、D四个选项中,找出其划线部分与所给单词的划线部分读音相同的选项.
(1) mourn A.flour B.journal C.journalist D.course
(2) aboard A.ours B.journey C.court D.hour