英语短语 run out 是一个常用的多功能短语,核心含义围绕“耗尽、结束”,具体用法需结合语境,以下是详细解析:
表示“某事物被用完、耗尽”,主语通常是时间、资源、物品等(如食物、钱、电池、汽油等)。
Our milk ran out this morning—we need to buy more.(我们的牛奶今早喝完了,得再买。)
Time is running out—we have to finish this report by 5 PM.(时间快用完了,我们得在下午5点前写完报告。)
The battery in my phone has run out—can I borrow your charger?(我手机电池没电了,能借你的充电器吗?)
表示“(证件、协议、保修等的期限)到期、失效”。
My passport runs out next month—I need to renew it.(我的护照下个月过期,得续签。)
The warranty on this laptop ran out last year, so repairs will cost money.(这台笔记本的保修去年就失效了,维修要花钱。)
表示“从某个地方跑出去”,后接 of + 地点。
The kids ran out of the house to play in the snow.(孩子们跑出房子去玩雪。)
Don’t run out into the street—it’s dangerous!(别跑到街上去,危险!)
固定搭配,表示“抛弃、遗弃(某人)”(通常指在对方需要时离开)。
She was heartbroken when her husband ran out on her and their kids.(丈夫抛弃她和孩子时,她心碎了。)
I can’t believe he ran out on his best friend during a crisis.(我不敢相信他在朋友危难时抛弃了对方。)
run out:不及物,主语是物(强调“事物自身耗尽”);
例:The gas ran out.(汽油用完了。)
run out of:及物,主语是人(强调“人主动用完某物”);
例:We ran out of gas.(我们把汽油用完了。)
时态搭配:
现在进行时(is/am/are running out):表示“正在耗尽”(即将用完);
例:Our supplies are running out—we need to restock.(我们的物资快用完了,得补货。)
现在完成时(have/has run out):表示“已经用完”(对现在有影响);
例:I’m sorry, we have run out of coffee.(抱歉,我们的咖啡喝完了。)
无被动语态:因为是不及物短语,不能说 The milk was run out,需用 The milk ran out。