问题：定语从句

Question

Is this book_____you want to borrow from the library?
a. that b. which c. the one d. /
答案是c.请问为什么？

Answer 1

C.
先不看从句部分，主句不完整：“this book is”，所以这句话首先要使主句完整，也就是说，使定语从句有先行词。
主句：this book is the one （这本书就是那本）
从句：the one (that/which/省略）you want to borrow from the library.

如果题目改为“is this the book ___ you want to borrow from the library
则选A,B,D都行，因为还原主句“this is the book”已经是完整句，构成定语从句时指代“物”，又在从句做宾语，that,which,省略都可以

Answer 2

其实ABD都是可以的,如果先行词是做从句的宾语,可以用that,which引导,也可以省略

Answer 3

C- the one indicates specifically the book

Answer 4

因为只有用the one 才是完整的句子，还原成陈述句就是This book is the one you want to borrow from the library.其他选项均构不成完整的句子。

Answer 5

完整的形式是
Is this book the one which you want to borrow from the library?
which被省略了.
看一下句子的陈述语气,更好理解:
This book is the one which you want to borrow from the library.

主语: This book 谓语: is 表语; the one 定语从句: which you want to borrow from the library
如果没有the one, 句子就没有表语,就有语法错误. the one是定语从句的先行词,而which是从句的引导词,指代the one,因为which在从句中做宾语,所以可以省略.

Answer 6

C
这里the one 就是指的后面的you want to borrow from the library 的对象，也就是the book .意思是这就是那本书（那本你想从图书管借的书）。我们可以把句子变成陈叙句就很明显了。This is the book you want to borrow from the library.这里面当然就不需要one，就是the book 就能表达清楚了，而且也只能这样，不能加one.