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英语状语从句的用法总结


状语从句 一、时间状语从句 1、引导词:when, while, as (1)when 的用法 ?既可以引导一个延续性动作,也可以引导短暂性动作 可用于主从句动作同时发生,也可用于从句动作先于主句动作 ?可做并列连词,意为“那时,这时,突然” ,相当于 at this/that time I was reading a novel when someone knocked at

the door. 还可以表示原因,意为“既然” ;表条件,相当于 if How can you hope to get mercy when you don’t show mercy on others?(when=if) ?be doing when + did 突然,意想不到的结果 be about to do...when...我刚准备干...突然... had just done...when...我刚刚做完...突然... (2)while 的用法 ?while 引导必须是持续性的,侧重主从句动作同时发生 Please don’t talk so loud while others are working. ?可做并列连词,意为“而,却” ,表对比 While Tom was studing, Ted was playing computer games. ?引导让步状语从句,意为“虽然” ,相当于 though, although While I accept that he is not perfect, I do actually like the person. (3)as 的用法 as 引导延续性动作,主从句主语是相同的,多表示主从句动作同时发生 意为“一边......一边......;随着” Jane sings as she works. 2、引导词: as soon as, immediately, instantly, directly, the moment, the minute, once, no sooner... than..., hardly/scarecely...when... 都意为“一......就......” ,从句中用一般现在时代替将来时 Once you remember it, you will never forget it. 注意:no sooner......than...... hardly............when...... scarecely........when...... ↓ ↓ 用过去完成时 一般过去时 I had hardly got home when it began to rain. 若把 no sooner, hardly, scarecely 放在句首,其后的句子要倒装 No sooner had we arrived at the station than the train left. 3、引导词:till, until, not...until... (1)肯定句:意为“某动作一直持续到某时间点才停止” “一直到......” Please wait until I come back. (2)否定句:意为“某动作一直到时间某点才开始” “直到......才......” He won’t go to bed till/until she returns. (3)till 不可用于句首,而 until 可以 Until you told me I had no idea of it. (4)not...until...句式的强调与倒装用法 强调句: It be + not until + that + 主语 + 动词过去式 It was not until you told me that I had any idea of it. 4、引导词:before, since (1)若表达“还未......就......” “不到......就” “......才......” “趁......还没来得及”要用 before We hadn’t run a mile before he felt tired. (2)It will be + 一段时间 + before sb. do sth. “多久之后才......”

It will be half a year before I come back. It was (not)...before...“不久......就......” (3)since 引导从句的谓语动词 一般过去时, 主句 现在完成时/现在完成进行时 She has been working in this factory since she left school. (4)在 It is + 一段时间 + since 从句的句型中,时间计算一律从 since 从句的动作完成或结束状态时算 It is three years since she was in our class. It was 3 years since he had lived there.他不住这儿已经 3 年了。 二、地点状语从句 引导词:where, wherever(在任何地方)=no matter where(无论何处) The photo of mine was taken where stood the famous high tower. Wherever you go, you can see new facrories and stores. 三、原因状语从句 1、引导词:because, as(由于), since(既然), now that, seeing that, considering that As the weather was fine, I opened all the windows. 2、for 引导的并列句也可表原因,不可放在句首“因为......其原因是......” It must have rained last night, for the ground is still wet. 3、介词短语 because of, owing to, due to, thanks to 等也表示原因 Thanks to the bad weather, they put off the sports meet. 四、条件状语从句 引导词:if, unless(if...not), as long as, so long as(只要), in case(万一) As long as you understand the rule, you will have no futher difficulty. 五、方式状语从句 引导词:as, as if, as though(好像), just as, as...so...(正如,就像) Do just as you like. As A is to B, so C is to D. 正如......一样 六、让步状语从句 引导词:though, although, even if, even though, whether...or...( 不管...还是...), whoever, whichever, however, whatever, whenever, no matter who, no matter which, no matter how, as(尽管), while(=though) Child as he is, he can do the work well. Though he is young, he knows... 七、目的主语从句 引导词:so that, in order that, for fear that(以免), in case, lest(免得,以防,唯恐) Come round to the windows so that I can see you. in order that 和 so that 的用法,从句中常有情态动词 八、结果状语从句 引导词:so that, so...that, such...that(如此...以至于), as a result(表结果), as a result of(表原因) 用法如下: so + 形容词/副词 + that 从句 so + 形容词 + a/an + 可数名词单数 + that 从句 so + many/much/little/few + 名词 + that 从句 such + a/an + 形容词 + 可数名词单数 + that 从句 such + 形容词 + 可数名词复数/不可数名词 + that 从句 such + a lot of/lots of + 名词 + that 从句 It is such fine weather that we all want to go to the park. He earned so little money that he couldn’t support his family. 当 so 和 such 置于句首时,主句要倒装 So clever was he a student that he was able to work out all the difficult problems. 九、比较状语从句 引导词:as...as..., more...than..., than, less...than..., the more...the more..., the same...as, such...as His name is the same as his father ’s (name). Tom is as good a student as Jack. =Tom is such a good student as Jack.


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