| 短语 | not unless |
| 释义 | not unless only if只有…:•'Will you go with her?' 'Not unless she wants me to.'“你和她一起去吗？”“只有她想让我去我才去。” CHOICE unless, if ... not, in case, or (else):Use unless to say that something will happen or be true if something else does not happen or is not true.表示某事将会在另一事不发生或不真实的情况下发生或成为事实，用 unless:•Unless they get protection, they will not testify.如果得不到保护，他们不会作证的。 ► Do not use the future tense after unless . unless 后面不要用将来时:•I won't go unless you go (NOT unless you will go).你不去的话我也不去。 ► Do not say 'unless if'. 不要说 unless if:•Don't call him unless it's urgent (NOT unless if it's urgent).事情不紧急就别给他打电话。Use If ... not when you know that something did not or will not happen. 如果你知道某事没有发生或不会发生，用 if ... not:•If he had not tripped, he would have won (=but he didn't win) .他如果不是绊倒了，就赢了。•I would go out if it wasn't raining (=but it is raining, so I am not going out) .要是不下雨我就出去了。Use in case when talking about something that is or should be done because something might happen.表示因为某事有可能发生而做或应该做另一件事，用 in case:•Take a sweater in case you get cold (NOT unless you get cold).带一件毛衣，以防你会冷。Use or or or else to say what bad thing will definitely happen if something else does not happen.表示如果不做另外一件事，某件不好的事肯定会发生，用 or 或 or else:•You'd better go, or else you'll miss the train (NOT unless you miss tha train).你该走了，否则会赶不上火车的。 |
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