精选优质文档-倾情为你奉上必修一1、not.until引导时间状语从句教材例句;but your friend cant go until he/she finishes cleaning the bicycle.句型解读not;until/till 意思是;直到;才;,表示主句谓语所表示的动作直到until状语所表示的时间才发生,主句的谓语动词表示的是动作的开始,动词既可以是延续性的,也可以是非延续性的。2、It is /was the first time that;教材例句It was the first time in a year and a half that Id seen the night face to face.句型解读It is the first second;etc) that; 从句谓语动词用现在完成时)It was the first second;etc) that; 从句谓语动词用过去完成时)the first time 可作从属连词用,引