摘要：While they were having a meeting, someone knocked at the door.（他们正在开会时，有人敲门。）
以下是时间状语从句各种用法及双语例句：
when引导的时间状语从句
- When I got to school, the bell rang.（我到学校时，铃响了。）
- When she was young, she loved dancing.（她年轻时，喜欢跳舞。）
- The children were playing when their mother came back.（妈妈回来时，孩子们正在玩耍。）
while引导的时间状语从句
- While I was reading, my father was watching TV.（我读书时，我父亲在看电视。）
- While they were having a meeting, someone knocked at the door.（他们正在开会时，有人敲门。）
- He likes listening to music while he is doing his homework.（他喜欢在做作业时听音乐。）
as引导的时间状语从句
- As we walked in the park, we talked about our future.（我们在公园散步时，谈论着我们的未来。）
- She sang as she went to school.（她一边上学一边唱歌。）
- As time goes by, we are getting better at English.（随着时间的推移，我们的英语越来越好。）
after引导的时间状语从句
- After he finished his work, he went home.（他完成工作后，回家了。）
- After the movie ended, we left the cinema.（电影结束后，我们离开了电影院。）
- She washed the dishes after she had dinner.（她吃完晚饭后洗了碗。）
before引导的时间状语从句
- Before you go to bed, you should brush your teeth.（你睡觉前应该刷牙。）
- I had learned some English before I came to this school.（我来这所学校之前已经学了一些英语。）
- Look both ways before you cross the road.（过马路前要左右看。）
since引导的时间状语从句
- Since I came to China, I have made many Chinese friends.（自从我来到中国，我交了很多中国朋友。）
- It has been a long time since we last met.（自从我们上次见面已经很长时间了。）
- We haven't seen each other since we graduated from high school.（自从我们高中毕业后就没见过面。）
until/till引导的时间状语从句
- He didn't leave until his mother came back.（直到他妈妈回来，他才离开。）
- We waited till the rain stopped.（我们一直等到雨停。）
- I will stay here until you come back.（我会一直待在这里，直到你回来。）
as soon as引导的时间状语从句
- As soon as I arrive at the station, I will call you.（我一到车站，就会给你打电话。）
- He will tell her the news as soon as he sees her.（他一见到她就会告诉她这个消息。）
- The girl starts to cry as soon as she misses her mother.（这个女孩一想念她妈妈就开始哭。）
every time/each time引导的时间状语从句
- Every time I see him, he is always happy.（每次我看到他，他总是很开心。）
- Each time she comes to my house, she brings me a gift.（每次她来我家，都会给我带个礼物。）
- Every time I listen to this song, I think of my childhood.（每次我听这首歌，我就会想起我的童年。）
by the time引导的时间状语从句
- By the time I got home, my mother had cooked dinner.（我到家时，我妈妈已经做好了晚饭。）
- By the time he comes back, we will have finished the work.（到他回来时，我们将已经完成了工作。）
- By the time the movie started, all the seats were taken.（电影开始时，所有的座位都被占了。）
时间状语从句中时态的确定主要遵循以下原则：
主现从现
当主句是一般现在时、祈使句或含有情态动词时，从句根据实际情况用一般现在时。例如：I will tell him the news when he comes back.（主句含will，从句用一般现在时comes表示将来）；Please call me as soon as you arrive.（主句是祈使句，从句用一般现在时arrive）。
主过从过
如果主句是一般过去时，从句通常也用过去的某种时态。如：He was reading a book when I came in.（主句用过去进行时was reading，从句用一般过去时came）；She said she had learned some English before she came to this school.（主句用一般过去时said，从句用过去完成时had learned）。
主将从现
在含有时间状语从句的主从复合句中，如果主句的时态是一般将来时，那么从句要用一般现在时表示将来。例如：I will go to the park after I finish my homework.（主句用一般将来时will go，从句用一般现在时finish）。
特殊情况
- since从句：主句常用现在完成时，从句用一般过去时。如：Since he came to this school, he has made many friends.
- until/till从句：如果主句中的动词是延续性动词，用肯定形式；如果是短暂性动词，用否定形式，即“not...until/till”结构。如：He waited until the rain stopped.（wait是延续性动词）；He didn't leave until his mother came back.（leave是短暂性动词）。
时间状语从句在中考英语中的重点考点主要包括以下几个方面：
引导词的用法
- when, while, as的区别：when既可以指时间点，也可以指时间段，从句中的动词可以是短暂性动词或延续性动词；while强调主句和从句的动作同时发生，从句中的动词必须是延续性动词；as表示两个动作同时进行，常译为“一边……一边……”或“随着”。例如：When I got home, my mother was cooking.（got是短暂性动词，cooking是延续性动词）；While I was reading, my sister was watching TV.（reading和watching都是延续性动词）；As we walked, we talked.（两个动作同时进行）。
- until, not...until的用法：until表示“直到……为止”，主句的动词如果是延续性动词，用肯定形式；如果是短暂性动词，用否定形式，即“not...until”，意为“直到……才”。如：He slept until his mother woke him up.（slept是延续性动词）；He didn't go to bed until he finished his homework.（go to bed是短暂性动词）。
时态的运用
- 主将从现：在时间状语从句中，主句用一般将来时，从句用一般现在时表示将来。例如：I will tell you as soon as I hear from him.
- 主过从过：当主句是一般过去时，从句通常用过去的某种时态。如：He said he would call me when he got home.
省略现象
当时间状语从句的主语与主句的主语一致，且从句中有be动词时，可以省略从句的主语和be动词。例如：While (he was) walking in the street, he met an old friend.
固定搭配
- hardly...when.../no sooner...than...：表示“一……就……”，hardly和no sooner位于句首时，主句要部分倒装。例如：Hardly had I got home when it began to rain.
- as soon as：引导时间状语从句，意为“一……就……”，强调动作的迅速。如：As soon as the bell rings, the students will go into the classroom.
时间状语从句的重点考点还包括以下内容：
引导词的辨析
- before与until：before强调在某个动作之前发生，而until强调动作持续到某一时刻。如：I had breakfast before I went to school.（先吃早饭，后上学）；I waited until he came back.（一直等到他回来这个时间点）。
- since与ever since：都有“自从”之意，since引导时间状语从句，主句常用现在完成时；ever since更加强调从过去某一时刻开始一直持续到现在，语气比since更强。例如：Since I came here, I have made many new friends.（自从我来到这里）；Ever since I was a child, I have loved music.（从我还是个孩子起，就一直喜欢音乐）。
复杂句式中的运用
- 在强调句中的运用：It was + 被强调部分 + that + 其他部分。如果被强调部分是时间状语从句，要用that引导。如：It was when I was walking in the park that I met my old friend.（强调时间状语when I was walking in the park）。
- 在定语从句中的嵌套：有时时间状语从句会出现在定语从句中，增加句子的复杂性。例如：I still remember the day when I first came to this school, and it was on that day that I met my best friend.（when引导定语从句修饰the day，而it was...that是强调句，强调on that day）。
与其他从句的区别
- 与定语从句的区别：时间状语从句是用来修饰动词，表示时间的，而定语从句是用来修饰名词或代词的。例如：I will never forget the day when I joined the club.（when引导定语从句，修饰the day，在从句中作时间状语）；When I joined the club, I was very excited.（when引导时间状语从句，修饰谓语动词was excited）。
- 与名词性从句的区别：时间状语从句在句中作状语，而名词性从句在句中作主、宾、表等成分。如：I don't know when he will come.（when引导宾语从句，作know的宾语）；When he comes, please tell me.（when引导时间状语从句，修饰tell）。
来源：蒙古元素