unless
- conj.除非;如果不;若非;除非在…情况下
- prep.除…之外
conj.
除非;除非在…情况下
used to say that sth can only happen or be true in a particular situation
You won't get paid for time off unless you have a doctor's note.
除非你有医生证明,否则你不上班便拿不到工资。
I won't tell them─not unless you say I can.
我绝不告诉他们——除非你允许。
Unless I'm mistaken, she was back at work yesterday.
除非是我记错了,她是昨天回来上班的。
He hasn't got any hobbies─unless you call watching TV a hobby.
他没有什么爱好——除非你把看电视也称作爱好。
若非;如果不
used to give the only situation in which sth will not happen or be true
I sleep with the window open unless it's really cold.
天气若不很冷,我总开着窗户睡觉。
Unless something unexpected happens, I'll see you tomorrow.
如果不出意外,我明天去看你。
Have a cup of tea─unless you'd prefer a cold drink?
喝杯茶吧——除非你喜欢冷饮?
unless
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1
CONJ-SUBORD 除非;若不;除非在…的时候
You use unless to introduce the only circumstances in which an event you are mentioning will not take place or in which a statement you are making is not true.Unless you are trying to lose weight to please yourself, it's going to be tough to keep your motivation level high...
除非减肥是为了悦已,否则很难保持积极性。
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2
不要混淆 unless,except,except for 和 besides。unless用于引出某事发生或成立所必需的条件,如:In the 1940s, unless she wore gloves a woman was not properly dressed(在20世纪40年代,女性若不戴手套就算衣着不得体),You must not give compliments unless you mean them(除非出自真心,否则不要随便恭维)。谈论由于某事未发生而导致的情形不能用unless,要用 if...not,如:I'll be glad if she doesn't come(如果她不来我会很高兴的)。except 用于引出陈述中唯一不适用的事物、情形、人或想法,如:All of his body relaxed except his right hand(除了右手以外,他全身都放松了),Travelling was impossible, except in the cool of the morning (除了在凉爽的早晨,其他时候出行都是不可能的)。except for用于引出使其陈述不能完全成立的事物,如:The classrooms were silent, except for the scratching of pens on paper(除了笔在纸上发出的沙沙声,教室一片寂静),I had absolutely no friends except for Tom(除了汤姆,我一个朋友也没有)。besides用于引出已提到事物之外的其他事物,如:Fruit will give you, besides enjoyment, a source of vitamins(水果不但好吃,而且富含维生素)。但应注意,用于谈论除某人或某物之外唯一的人或物时,besides的意思与apart from相同,如:He was the only person besides Gertrude who talked to Guy(除格特鲁德之外,他是唯一跟盖伊说话的人)。
D
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I won 't tell them ─ not unless you say I can .
我绝不告诉他们——除非你允许。
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Unless I 'm mistaken , she was back at work yesterday .
除非是我记错了,她是昨天回来上班的。
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Unless we start making some sales , we 're done for .
如果我们还卖不出去,那我们就完了。
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I sleep with the window open unless it 's really cold .
天气若不很冷,我总开着窗户睡觉。
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Unless something unexpected happens , I 'll see you tomorrow .
如果不出意外,我明天去看你。
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They refused to release their hostages unless certain conditions were met .
除非某些条件得到满足,否则他们不会释放人质。
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The theatre faces closure unless it gets an urgent cash injection .
剧院面临着倒闭,除非有大笔救急现金投入。
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The government does not want to go to war unless all other alternatives have failed .
除非所有其他方法都行不通,否则政府不希望开战。
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Unless my eyes deceive me , that 's his wife .
如果我没有看错的话,那是他的妻子。
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Have a cup of tea ─ unless you 'd prefer a cold drink ?
喝杯茶吧——除非你喜欢冷饮?
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That 's the plan ─ unless anything untoward happens .
计划就这么定了——除非出现异常情况。
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The union cannot call a strike unless it holds a ballot of members .
工会未经会员投票表决不得发动罢工。
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Their captors told them they would be killed unless they cooperated .
抓住他们的人说如果他们不配合就杀掉他们。
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I will expect to see you on Sunday unless I hear anything to the contrary .
我星期天等你,除非你说不来了。
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Unless I 'm very much mistaken , that 's Paul 's wife over there .
要是我没太弄错的话,那边那个就是保罗的妻子。
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He hasn 't got any hobbies ─ unless you call watching TV a hobby .
他没有什么爱好——除非你把看电视也称作爱好。
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The country has been threatened with complete isolation from the international community unless the atrocities stop .
这个国家受到了完全被国际社会孤立的威胁,除非其暴行得以制止。
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The cultural life of the country will sink into atrophy unless more writers and artists emerge .
如果没有更多的作家和艺术家出现,这个国家的文化生活将衰退。
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Most dogs will not attack unless provoked .
大多数狗受到挑衅才会攻击。
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You are allowed 20kgs of baggage unless indicated otherwise on your ticket .
除非票上另有注明,否则可携带行李为20公斤。
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Such schemes mean little unless they impact on people .
这些计划没什么意义,除非它们对人民产生影响。
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We cannot understand disease unless we understand the person who has the disease
若不了解患者我们就不能了解疾病。
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Why did you need a room unless you were up to something ?
除非你要搞什么小动作,不然你为什么单要一间房?
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You 're not going to get out of here unless we make a deal .
除非我们达成协议,否则你就别想从这儿出去。
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No-one could use the computer unless they had a password .
除非知道密码,否则谁也用不了那台计算机。
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I 'm not happy unless I ride or drive every day .
只有每天骑车或开车我才会开心。
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The Chancellor could face a rough ride unless the plan works
除非这个计划能够奏效,否则财政大臣将举步维艰。
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Life on Earth will become unsustainable unless population growth is held in check
人口增长要是不加控制的话,地球上的生命将无法持续发展。
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The targets would not be achieved unless other departments showed equal commitment .
除非其他部门同样努力,否则这些目标无法达成。
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Training is worthless unless there is proof that it works .
除非能证明训练有效,否则就是白搭。