long before很久以前,過(guò)去時(shí)
before long不久之后,將來(lái)時(shí)
意思一說(shuō)就明白啦~要是記不住的話~就想“l(fā)ong before”=“l(fā)ong long ago”都是long開(kāi)頭的~我就是這樣記住的~
句子：
1
He will come before long.
他不久之后會(huì)到.
2
Long before,there was a big museum.很久以前,這里有一座大博物館.long before
很早以前
before long
adv.
不久以后
before long(=soon)與long before的區(qū)別：before long“不久”、“很快”,用于各種時(shí)態(tài).例：We'll meet again before long.long before是“很久以前”,單獨(dú)使用,一般用在過(guò)去完成時(shí)的句子里.例：They said they had seen the film long before.同時(shí),long before后可以接從句.I had seen the film long before you saw it.
before long; long before辨識(shí)
before long相當(dāng)于soon,a little later,意為\"不久或不久以后\",常與將來(lái)時(shí)、過(guò)去時(shí)態(tài)連用,在句中作狀語(yǔ).如：
The book will be published before long.那本書(shū)不久將要出版.
Before long he came to Canada to go on with his education.不久以后他去了加拿大繼續(xù)深造.
long before相當(dāng)于long,long ago意為\"很久；很久以前\",常用于過(guò)去時(shí)或過(guò)去完成時(shí).如：
Long before,there is a big museum here.很久以前,這里有一座大博物館.
I had heard of him long before I came here.我來(lái)這兒很久以前就聽(tīng)說(shuō)過(guò)他的情況.