Ihearhervoiceinthemorninghoursshecallsme.1）shecallsme在句子中作什么成分?2）可不可以说成Ihearhervoiceinthemorninghourswhenshecallsme?有一本书上说thelasttimewhenweattendedthetradeshow的when是多

Question

I hear her voice in the morning hours she calls me.
1）she calls me在句子中作什么成分?
2）可不可以说成
I hear her voice in the morning hours when she calls me?
有一本书上说
the last time when we attended the trade show的when是多余的,要删去,这是什么原因?
when在这两个句子里到底多不多余?

Answer 1

I hear her voice in the morning hours she calls me句中 she calls me 是定语,修饰它前面的名词hours,
这句中是可以加上when的,不过是when引导的丛句就作状语了.
the last time when we attended the trade show的when是多余的,要删去,这是什么原因?
这条语法规则是：在某些含有“时间”的名词词组后面,由于该名词不表示时间,或整个名词词组已用作连词,所以不用 when 引导.如：the moment,the instant,the minute,the second,the first time,the last time 等等,
如：The first time I went to China,I visited Beijing.我第一次来中国就游览了北京.
The instant I saw him I knew he was my brother.我一看到他就知道他是我兄弟.