主要看后面的从句在主句中作什么成分,状从是说从句充当主句中的状语,定从是充当主句中的定语
定语是修饰名词和代词的,而状语是修饰动词、形容词或整个句子的
我估计你是对when,where等引导的定从和状从不明白
Beijing is the place where I was born.(此处where =in which)
拆开来:Beijing is the place. I was born in Beijing.第二句是对第一句中place进行补充说明,实为定语。 其实和Beijing is a beautiful place中的beautiful功能相同
You should have put the book where you found it.
You should have put the book on the shelf.
这两句是where you found it 和on the shelf都是状语,表达放在哪,作方位状语,只不过前者是个从句,后者是从词
再比较这两个句子
1. Beijing is the place where I was born.
2. You should have put the book where you found it.
第一句中,i was born是缺少in the place(in which=where )这个才完整,区分是不是定从,也可以看,从句是不是完整,而缺少的正是它的先行
第二句中 从句中it 指的就是book,重复出现了,where前面的book并不是从句you found it所缺失的部分。这也是一个诀窍
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