1、读一读，判断下面每组词划线部分的读音是否相同。相同在括号里写“T”不相同写“F”。（1）this that ( )（2）these thanks ( )（3）thumb those ( )（4）thin thick ( )2、读一读，找出划线部分发音不同的单词，把选项写在括号里。（1）A this B those C thanks( )（2）A thin B thick C father( )（3）A bathroom B these C this ( )（4）A thumb B that C mother( )