答:关系代词whose 可以引导定语从句,在从句中作定语,加上一个名词(这里是roof)后一起在从句中作主语或宾语。whose不仅可以指代人,表示“他/她/他们的”,也可以指事物,表示“它/它们的”,用一个汉字“其”可综合所有的“Ta (们)的”
房顶,英语中可以用its roof, 也可以用the roof of the house, 改成定语从句时,有两种方式:
whose roof, 和the roof of which, 后者常写成of which the roof ...
有人说of which =whose 是不确切的,容易犯错误的,因为whose后就不能再用the, 面of which 前面(或后置的这个)名词前应有一个the表示特指才行。
The house (whose ) roof was damaged has now been repaired.
=The house of which the roof was damaged has now been repaired.
译:原先(其)顶受损的那间房子现在已经修好了。
注:非限制性定语从句,还可以说成, the roof of which ...
如:My house, the roof of which was damaged, has now been repaired.
也可能用上面的两种说法:My house, whose roof..., ..../ My house, of which the roof..., ....
但限制性的,一般只用上面的两种,不太用:The house the roof of which was ......,语感不是很好。