题目内容
5.-I'll call you ______ I arrive in Shenzhen.-Thanks,and good luck.( )
A. | while | B. | until | C. | as | D. | once |
分析 --我一到深圳就给你打电话.
---谢谢,祝你好运.
解答 答案:D.根据Thanks,and good luck可知这是一个送别的语境,所以上句表示我一到深圳就给你打电话,所以答案是D once"一旦".其他选项的含义分别是A"当…时,然而";B"直到";C"随着".
点评 考查从属连词.once的用法总结
1.once用作连词时,意为"一旦…就…",用于连接时间状语从句,相当于as soon as.
如:Once you start,you will never give up.一旦你开始了,你就不要放弃.
注意:once引导的是时间状语从句,从句要用一般现在时代替将来时.
2.once用作副词时,意为"曾经;一度;从前".它是一个不确定的时间副词,其位置一般是在行为动词之前,系动词之后.
如:Once he lived in America,but now he lives in England.他曾经生活在美国,但现在他生活在英国.
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