as表示“一边……一边”,as引导的动作是延 续性的动作,一般用于主句和从句动作同 时发生 .
I watched her as she combed her hair .
exercises
⑴_w__h_e_n__ he broke in, we were
having an English class.
7. “疑问词+ever”和“no matter+疑问词” 引
导从句的用法; 8. in case引导的状语从句; 9. where引导的状语从句; 10. once引导的状语从句。
(一). 时间状语从句
常用连词:
When ,whileห้องสมุดไป่ตู้,as ;before ,after; till , until ; whenever each / every time, ;the moment /minute /second ,as soon as ,hardly …when …,no sooner …than.., immediately ,directly…
⑵__W__h_e_n__/_W__h_i_le__/_A_s_____ we were
having an English class, a stranger broke in.
⑶The little children sang happily
__a__s__ they walked along.
★ 高考热点: ①We were swimming in the lake
考点1
当….的时候 as 一边….一边….
★随着….
when引导的从句的谓语动词可以是延续性 的动词,又可以是瞬时动词。并且when有 时表示“就在那时”。