找出画线部分发音不同的一项。(6分)
( )(1)A.glad B.name C.lake
( )(2)A.teacher B.tea C.bread
( )(3)A.China B.school C.March
( )(4)A.dear B.pear C.wear
( )(5)A.music B.sun C.under
( )(6)A.how B.know C.now