The woman,whom my mother is talking with ,is our teacher.改成限

有两种改法：
1.the woman with whom my mother is talking is our teacher .(在这个句子中,the woman充当定语从句的宾语,所以用whom引导）
2.the woman who is talking with my mother is our teacher.(在这个句子中,the woman充当定语从句中的主语,所以用who引导）
一.因为talk with这个短语强调的是双方一起谈论,不强调说话的一方.所以the woman作主语与宾语都是可以的.如果这句话中talk with 改成talk to,就只能改成the woman to whom my mother is talking is our teacher（强调的是一直是妈妈说,老师听,the woman就只能充当定语从句的宾语了）
二.这句还间接考到了who与whom的区别这个考点,who在定语从句中充当主语,whom充当宾语,而且紧跟在介词后面的只能是whom.
thanks.（当时我高考英语142分）

the woman talked to my mother is our teacher

the woman with whom my mother is talking is our teacher