(3)until后的时态问题
由于until引导的是时间状语从句,所以它的一般将来时用一般现在时代替;过去将来时用一般过去时代替;将来完成时用现在完成时代替。
He had left his key in the office. He had to wait until his wife came.
Don't get off the bus until it has stopped.
(4) 这一句式的倒装问题
Not until he came back from Africa that year did he meet the girl he would like to marry.
It was not until he came back from Africa that year that he met the girl he would like to marry.
当not until在句首时,其主句应当使用倒装句;而强调句则不倒装。
⑫…it was the first time in a year and a half that I'd seen the night face to face… (P2)
……这是我一年半来第一次目睹夜晚……
It/This is/was the first/second time that+主语+完成时,表示“某人第一/第二次做某事”。
其完成时的选择依据主句的be动词是was,从句的谓语用过去完成时had done;主句的be动词是is,从句的谓语用现在完成时have done;主句的be动词是will be,从句的谓语用将来完成时will have done。 — Can you tell me the way to the station? — Sorry, I'm a stranger here. This is the first time I have come here.
你知道这一句型与“It's high/ about time (that)+ 从句”的区别吗?在下列例句中体会。
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