大概是where引導(dǎo)的定語(yǔ)從句問(wèn)題.
where 引導(dǎo)定語(yǔ)從句,前面的先行詞（就是它所修飾的詞）通常是表示地點(diǎn)的名詞,如place,room,case,point,等.
引導(dǎo)定語(yǔ)從句的詞有兩種,關(guān)系代詞（which,that等）和關(guān)系副詞(where,when,why）等,它們的作用不僅連接著主從句,同時(shí)還在從句中充當(dāng)一個(gè)成分.比如where就當(dāng)?shù)攸c(diǎn)狀語(yǔ)=in which/this place等.
所以你這里講的接介詞是否指前面加介詞?不能加.
This is the room where (in which) he was born.
That is the point where (from which point) he will start a new life.