单词：unless
音标：[.ʌn'les] ；
柯林斯词典等级：4 级；
牛津三千核心词汇；
conj. 除非
prep. 除...之外
prep. 除...之外
conj. Upon any less condition than (the fact or thing stated
in the sentence or clause which follows); if not; supposing that not;
if it be not; were it not that; except; as, we shall fail unless we are
industrious.
in the sentence or clause which follows); if not; supposing that not;
if it be not; were it not that; except; as, we shall fail unless we are
industrious.
考试类型：[中考/高考/四级/六级/考研/托福]
词性分布：
unless的用法和样例：
例句
用作连词(conj.)
- I won't go to the party unless I'm invited.除非我被邀请，否则我不会去参加晚会的。
- I sleep with the window open unless its really cold.我总是开著窗户睡觉，除非天气非常冷才关上窗户。
- Iron corrodes unless it is greased or kept clean.如果不涂油或保持清洁铁便会腐蚀。
- Unless you work harder, you will not pass the examination.如果不加紧用功，你就不能通过考试。
用作介词(prep.)
- Nothing could stop me from waiting for you to come back unless death.除了死亡再没有别的事物能够阻止我等待你回来。
常见句型
用作连词(conj.)
- You will fail unless you work hard.如果你不努力工作,就会失败。
- Unless he has any objections,we will carry out the plan.除非他反对,否则我们就执行这项计划。
- Let's have dinner out—unless you are too tired.咱们出去吃饭吧——除非你太累了。
- Substances have no tendency to expand unless (they are) heated.除非受热,物质不会有膨胀的倾向。
- I won't write unless he writes first.除非他先写信,否则我就不写。
- I will be very angry unless you have already spoken to her.除非你已经对她说过了,否则我会很生气。
- Don't ask me to explain unless you really don't understand.不要叫我解释,除非你真的不懂。
- Unless paying by credit card, please pay in cash.如果不用信用卡付账,就请付现金。
词汇搭配
- unless and until 直到 ... 才
- unless otherwise stated除非另作说明...
- unless otherwise specified除非另作说明，如无特...
经典引文
Unless the Swedish part..the Laplanders can be said to be under no regular government.
出自：J. Morse