英语结构划分 Some of the books were gifts that he got from his Chinese friends and students.

Some of the books were gifts that he got from his Chinese friends and students.
Some of the books主语 were 系动词 gifts 表语,were gifts在一起组成谓语部分.
that he got from his Chinese friends and students是定语从句,修饰gifts.在定语从句中,he主语,got 谓语,连词that是got的宾语.from his Chinese friends and students 是状语,表示来源.全句义为：其中一些书是他的朋友和学生送给他的礼物.
追问The paintings that David donated to the school are being shown in the exhibition room.
这个呢?
The paintings 主语,谓语是are being shown （在展览）in the exhibition room 地点状语.
that David doanated to the school是定语从句,修饰paintings.在定语从句中,David主语,donated谓语,that 是doanted 的宾语,to the school 地点状语.全句义为：大卫捐献给学校的画正在展览馆展出.