关系代词: who(人-主格), whom(人-宾格), which(物), that(人/物), whose(所有格)
限定性从句(无逗号,必要信息):
The student who scored highest received a scholarship.
非限定性从句(有逗号,补充信息):
Dr. Smith, who teaches biology, won an award.
注意: that 不能引导非限定性从句。
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关系从句(定语从句)的构成和限定/非限定用法。
关系代词: who(人-主格), whom(人-宾格), which(物), that(人/物), whose(所有格)
限定性从句(无逗号,必要信息):
The student who scored highest received a scholarship.
非限定性从句(有逗号,补充信息):
Dr. Smith, who teaches biology, won an award.
注意: that 不能引导非限定性从句。
After a person noun, use "who". After a thing noun, use "which" or "that".