状语从句精讲 改

◆since “自从……”
（主句常用现在完成时，从句常用一般过去时）
For example: 自从他大学毕业，他一直在这座城市工作。
He has worked in this city since he graduated from the college. ★注意★ 常用句型：It is+ 时间段 + since+从句（一般过去时） “自从……以来已经有多长时间了 ” 例句翻译：自从她大学毕业已经有六年时间了。
（1）until/till从句用于肯定句时，主句的动词是延续性动作，表 示“某动作一直延续到某时间点才停止”，译为“直到…为止”。 For example: 我们一直待在那里，直到雨停了为止。 We stayed there until/till the rain stopped.
（2）until从句用于否定句时，主句的动词是瞬间动作，表示“某 动作直到某时间才开始”，译为“直到… 才”。 For example: 直到雨停了，我们才离开。 We didn’t leave until the rain stopped.
5、表示“一…就…”句型
（4）no sooner ...than , hardly/scarcely...when A.意思：“一…就…” B.时态：主句（no sooner/ hardly/ scarcely）用过去完成时， 从句(than/ when)用一般过去时。
C.倒装：结构中的否定词（no sooner/ hardly/ scarcely）放在句首 时，主句（紧跟其后的句子）要倒装。
(1)在时间状语从句中，不能用将来时，而要 用一般现在时代替将来时。（主将从现）
I will tell him about it as soon as he comes back.
5、表示“一…就…”句型
（2）名词短语转变成连词：
the moment, the instant, the minute, the second
★ 例 句 导 入 ★
时间状语从句
地点状语从句
★归纳总结★
九 种 状 语 从 句
原因状语从句
条件状语从句
让步状语从句
结果状语从句
目的状语从句
方式状语从句
比较状语从句
★各类状语从句常见的连接词★
1、时间状语从句 when, while, as（当…时候）, before（在…之前）, after（在…之 后）, since（自从…）, till, until（直到…为止）, not…until（直 到…才），as soon as（一…就），once（一旦）等 2、地点状语从句 where（在…的地方), wherever（无论在…地方 ） 3、原因状语从句 because, as, for（因为），since（既然）， now that(既然）, in that（因为） 4、条件状语从句
语法专题复习 主从复合句：状语从句
The Adverbial Clauses
一、基本概念 二、状语从句分类 三、各类状语从句重难点 四、考点与注意点汇总
试比较
I played the piano at six.
介词词组做状语表时间
I was playing the piano when he came back.
★注意★
till不可放在句首或用于强调句中， not…until句型中一般也不用till。
3、until, till, not…until引导时间状语从句
（3）用于强调句式“It is/ was not until ...that ...” For example: 直到雨停了我们才离开。 It was not until the rain stopped that we left. （4）not until放在句首时主句要进行部分倒装 For example: 我们一直到雨停了才离开。 Not until the rain stopped did we leave.
时间状语从句练习四
6. (03北京春) －Was his father very strict with him when he was at school? C he became －Yes. He had never praised him ______ one of the top students in his grade. A. after B. unless C. until D. when
（3）as的用法
A. as可用来引导时间状语，常可和when换用，但较强调主从句动
作同时发生，意为“一边…一边”，引出伴随动作 For example: 她一边做作业，一边听音乐。 She was doing her homework as she was listening to the music.
一、时间状语从句重难点
1、when, while, as引导时间状语从句 （1）when的用法 A. when引导时间状语从句既可指时间点，也可指时间段
（即：从句动词可以是瞬间动词也可是延续性动词）。 For example: ①当我住在那里时，我周日常去海滨。 When I lived there, I used to go to the seashore on Sundays. ②他到上海时，他妈妈到车站接他。 When he arrived in Shanghai , his mother met him at the station .
从句做状语表时间
一、基本概念
1、状语
修饰动词、形容词、副词或整个句子，说明动作 或状态特征的句子成分，叫做状语。通常由副词、 介词短语、动词不定式、分词或从句等担当。
2、状语从句
用一个句子来充当主句的状语叫状语从句，主要 用来修饰主句或主句的谓语，状语从句在句中相 当于副词做状语，因此又叫副词性从句。
if（如果），unless（除非）， as (so) long as（只要）， once（一旦），in case（万一）
★各类状语从句对应的连接词★
5、让步状语从句
although, though, as （虽然，尽管）， even though/even if （即 使），no matter+疑问词（无论…)=疑问词+ever（无论.....）等 6、结果状语从句 so…that, such…that（如此…以致于…）， so that（结果） 7、目的状语从句 so that（以便…）， in order that（为了…） 8、方式状语从句 as（正如）,，as if/as though（好像，似乎…） 9、比较状语从句 than（比…更…）， as…as（和…一样）， not so/as…as（不像/如…） the +比较级…, the +比较级…（越…越…）
二、状语从句分类
1. It was raining while Jane was waiting for the bus. ( 时间 ) 2.Why not put the book where you can find it easily?( 地点 ) 3.Betty didn’t go to see the film yesterday because she was ill. （原因） 4. I’ll speak slowly so that you can understand me. ( 目的 ) 5. It is so hot in the room that we have to go out for a walk. ( 结果 ) 6. We will not go to the park if it rains tomorrow. ( 条件 ) 7. No matter how hard he tried, he would not find the lost mobile phone. ( 让步 ) 8. The old lady treats the boy as if he were his own son. ( 方式 ) 9.He is taller than I am.( 比较 )
7. It was not ______ B she took off her dark glasses______ I realized she was a famous film star. A. when; that B. until; that C. until; when D. when; then
时间状语从句练习五 9. (01北京春)－Did you remember to give Mary the money you owed her? －Yes. I gave it to her ______ B I saw her. A. while B. the moment C. suddenly D. although 10. (1998上海) I thought her nice and honest ______ I C met her. A. first time B. for the first time C. the first time D. by the first time C 11. ______ entered the office when he realized that he had forgotten his report. A. He hardly had B. Had he hardly C. Hardly had he D. Hardly he had
For example: 我刚到车站，火车就开走了。 I had no sooner got to the station than the train left. 句型转换（no sooner）置于句首： No sooner had I got to the station than the train left.
For example: 他一听说发生了事故，就到现场来了。 He came to the spot the moment he heard of the accident. （3）副词转变成连词： instantly, immediately, directly For example: 他们一得到口信就把消息告诉我了。 They told me the news immediately they got the message.
时间状语从句练习一
1. (05福建) －Did Jack come back early last night? －Yes. It was not yet eight o’clock ____ B he arrived home. A. Before B. when C. that D. until 2. (06辽宁) He was about halfway through his meal ______a familiar voice came to his ears. C A. why B. where C. when D. while
（2）while的用法
A. while只能指一段时间，从句中的动词必须是延续性动词。强调
某一段时间内主句动作的发生，相当于during the time that....;从 句常用进行时态。
ຫໍສະໝຸດ Baidu
For example: ①当别人工作时，请不要这么大声说话。 Please don’t talk so loud while others are working. ②当我在做作业时，妈妈在做饭。 My mother was cooking while I was doing my homework.
B. as还可说明两种正在发展或变化的情况，“随着...”的意思，表时
间的推移。 For example: 随着时间的流逝，我开始意识到学习的重要性。 As time went by, I began to realize the importance of learning.
.
2、until, till, not…until引导时间状语从句
For example: 我喜欢看电视，而他喜欢读书。 I like watching TV, while he likes reading.
B. while作为并列连词，意为“然而，却”，表示同类对比。
1. She thought I was talking about her son, ____, B in fact, I was talking about my son.
It is six years since she graduated from
5、表示“一…就…”句型
（1）as soon as For example: ①我一到上海就会写信给你。 As soon as I arrive in Shanghai, I will write to you.
★注意★