时间状语从句（时间状语从句知识点总结）

　　时间状语从句（时间状语从句知识点总结）
　　哈喽，欢迎来到英语小课堂，我是华华老师，这是时间状语从句的总结笔记，内含测试题，大家要认真做哦，答案在底部，如果看完答案还不清楚的，可以点开文末＂了解更多＂查看视频讲解哦，加油
　　王者荣耀导入
　　Huahua knows this game because of his classmates.
　　Huahua plays the game on Saturday.
　　He likes playing it in his room.
　　Huahua liked Xuance when he was ten years old.
　　如果我们用一个从句来表达一件事情或一个行为发生的时间, 那么这个从句就叫时间状语从句。
　　时间状语从句 引导词
　　when引导的时间状语从句可以用于不同时态,从句动作既可以是延续性动词也可以是短暂性动词。
　　表示当…时候。从句的动作既可和主句的动作同时发生,又可在主句的动作之前或之后发生。
　　He fell asleep when he was reading a book in the morning.早上他正在读书的时候，睡着了。
　　When I entered the classroom, they stopped talking.当我进入教室的时候，他们停止了讲话。
　　例题
　　1、How did Tom hurt his leg yesterday?
　　He was walking home a bike hit him.
　　A after
　　B when
　　Cbefore
　　D.during
　　while 表示＂当……时候，与此同时＂，主从句后通常都可以跟延续性动词。紧跟while的从句既可以放在主句前，也可以放在主句后。放在主句前时，要用逗号分开；放在主句后时，中间无任何符号。
　　I was watching TV while my wife was brushing Tik Tok.
　　我在看电视的时候我的妻子在刷抖音。
　　I was doing my homework while he was sleeping. 我正在做作业，与此同时，他正在睡觉。
　　while还可用作并列连词,表对比,意为＂而,然而＂这时前后动词时态一致。
　　I like freedom, while she likes money.我喜欢自由，而她喜欢金钱。
　　例题
　　2、What were you doing at this time yesterday?
　　I was reading a magazine my brother was doing his homework.
　　A as soon as
　　B while
　　C before
　　D after
　　as表示＂一边……一边；随着＂，表示＂随着＂时，as后面的动词要用延续性动词。
　　He read a newspaper as he went along. 他边走边看报纸。
　　As time goes by, he becomes cleverer. 随着时间推移，他变得更聪明了。
　　例题
　　3、 He listened to the music______he washed his clothes.
　　A so
　　B but
　　Cas
　　D and
　　when/while/as/辨析
　　before 表示＂在……之前＂。
　　Wash your hands before you have dinner. 在你吃饭之前先洗手。
　　Turn off the lights before you go out. 在你出去之前关灯。
　　after 表示＂在……之后＂。
　　Put a nose on it after you make a snowman. 在你堆完雪人后给它按个鼻子。
　　Wash your hands after you play with mud. 玩泥巴之后洗手。
　　例题
　　4、He had learned Chinese he came to China
　　5、You can go out to play______you finish your homework.
　　before after
　　until 表示＂直到……＂，指直到……主句的动作才结束。主句谓语动词必须是延续性动词。
　　not...until表示＂直到……才＂，指直到……主句的动作才开始。主句谓语动词可以是延续性动词或者短暂性动词。
　　till和until用法相同，但是till不能用于句首。
　　He played games until it was dark. 他一直玩游戏到天黑。
　　He didn't stop playing games until his mother came back.直到他妈妈回来他才停止玩游戏。
　　例题
　　6、mom, could I watch TV now?
　　Sorry, you can't watch it you finish your homework.
　　A when
　　B since
　　C until
　　D if
　　7、（ ） it was 3 o'clock in the morning he went to bed.(until / till)
　　as soon as 表示＂一……就……＂。通常主句用一般将来时，从句用一般现在时，即＂主将从现＂。除了时间状语从句外 ，遵循主将从现原则的还有if, unless 等引导的条件状语从句。
　　I'll telephone you as soon as I get there. 我一到那就打电话给你。
　　例题
　　8、l'll go to visit the Great Wall the summer holiday starts.
　　A since
　　B while
　　Cuntil
　　D as soon as
　　since 表示＂自从＂，主句部分用现在完成时，since后面的从句用一般过去时。主句动词必须是延续性动词。
　　We haven't met since we graduated from the college. 自从我们大学毕业后就再没见面。
　　It is+一段时间+ since+从句(一般过去时)
　　It is four years since I left my hometown.
　　我离开家乡已经4年了。
　　例题
　　9、We haven't written to each other______we graduated from college.
　　A.since
　　B. as
　　C. while
　　D. when
　　答案:1-5 B B C before after 6-9 C until D A