1.where引導的定語從句前必須有一個表示地點的名詞作先行詞
The bookshop where I bought this book is not far from here.
我買這本書的那個書店離這里不遠。
This is the house where I lived two years ago.這就是我兩年前住的那個房子。
We will start at the point where we left off.我們將從上次停下來的地方開始。
2.where引導的地點狀語從句修飾主句的謂語動詞,前面無需有先行詞
Make a mark where you have any doubts or questions.在有疑問的地方做一個記號。
I found my books where I had left them.我在我原來放書的地方找到了我的書。
【比較】
①Go back to the village where you came from.
回到你來的那個村子里去。(定語從句修飾先行詞village)
②Go back where you came from.
你從何處來就回何處去。(where引導地點狀語從句)