unless
conjunction
uk/ənˈles/us/ənˈles/B1
except if:
除非；除了在…的情况下You can't get ajobunless you haveexperience(= you can only get ajobif you haveexperience).除非有工作经验，否则你找不到工作。
Unless youcallme to say you're not coming, I'llseeyou at thetheatre(= I willseeyou there if you do notcallto say you are not coming).除非你打电话说你不来了，否则我就在剧院等你。
- Theythreatenedtokillhim unless he did as theyasked.
- Mostwildanimalswon'tattackunless they areprovoked.
- I can'tletyou in unless you give thepassword.
- Students are notallowedtohandlethesechemicalsunless they are under thesupervisionof ateacher.
Linguistics: connecting words which express a condition
- assuming (that)
- at
- at the risk of doingsomethingidiom
- by
- ceteris paribus
- even
- granted
- if
- lest
- long
- provided (that)
- risk
- suppose
- whether
Grammar
Should you(Shouldwith inversion)
In formal situations, we can use should + subject (s) + verb (v) instead of if:…Had you(Hadwith inversion)
In formal situations, we can use had + subject + verb instead of if in third conditional sentences:…If+were to
In formal situations, we can use if + were to when we talk about things that might happen but which we think are unlikely:…As long as,so long as,providing, etc.
Sometimes we need to impose specific conditions or set limits on a situation. In these cases, conditional clauses can begin with phrases such as as long as, so long as, only if, on condition that, providing (that), provided (that).…Orandotherwise
We often use or and otherwise with conditional meanings:…Supposing
Supposing may be used with a conditional meaning. It can be used in first, second or third conditional sentences. The speaker invites the listener to imagine a situation:…Conditionals: other expressions (unless, should, as long as)
Conditional clauses can begin with unless. Unless means something similar to ‘if … not’ or ‘except if’.…Unless
Conditional clauses can begin with unless. Unless means something similar to ‘if … not’ or ‘except if’.…Unless
We use the conjunction unless to mean ‘except if’. The clause which follows unless is a subordinate clause (sc): it needs a main clause (mc) to make a complete sentence.…