中考英语语法:状语从句一、时间状语从句在时间状语从句中,一般要用动词一般目前时态体现未来时,用一般过去时体现过去未来式
时间状语从句常见连词有: when, as, while, whenever, after, before, till (until), since, once, as soon as (或 the moment ), by the time, no sooner … than, hardly (scarcely) … when, every time 等引导
1.考察 when, while, as 引导,体现“当……时候”
【考例】一 Mum,____shall we have lunch
——We will have it when your dad__________
[07 连云港市]A when;returns B where returns C . where ; will return D.when;will return[答案]A.[解析] 答语中 when 引导了一种时间状语从句,主句用了一般未来时态,因此从句用一般目前时态,可见对的答案在 A 和 B 之中
既然答语用了时间状语来答复,可见问句问询也一定是时间,从而确定对的答案为 A
before 使用措施:before 本意为“在……之前”,根据详细语境还可理解为“还没来得及/还没有……就……,趁着还没……就……,不知不觉就……,……才……”等
如:【考例】Could you please give me your e-mail address _________you go
[昆明市]A
as soon as B
before C
after D
until[答案]B.[解析]这四个词(组)所有可以引导时间状语从句,as soon as 一……就.before