高中英語句型歸納 高中英語句型歸納

　　高中英語句型歸納

　　1. be doing/ be about to do/ had done…, when…(when：這時, 強調(diào)一個動作的突然發(fā)生)

　　1). I was walking along the river, when I heard a drowning boy cry for help.

　　2). I was about to leave when it began to rain.

　　3). I had just finished my test paper when the bell rang, announcing the exam was over.

　　2. It was (not ) + 時間段+before +一般過去時 過了一段時間就……..

　　It will (not )be+ 時間段+before +一般現(xiàn)在時 要過一段時間才會…

　　It is/ has been +時間段+ since…..

　　It was +點時間+ when…..

　　It was +時間狀語+ that …..(強調(diào)句)