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高考英语语法讲解——状语从句
1、定义:在复合句中由从句表示的状语称作状语从句,它可以用来修饰谓语(包括非谓语动词)、定语或状语,或是整个句子。、
2、分类:时间 地点原因 目的 结果 条件 方式 比较 让步
3、时间状语从句:when, while, as, the moment,before, after, till, until, since, as soon as 等
①请注意 when, while, as 的区别
*When ---当……时候,主句与从句的动作同时发生,接时间点或时间段 Eg:When I came home,I met an old schoolmate of mine. *While ---在……期间,只能接时间段 Eg:While we were talking, he came in. *As --- 一边……一边, 随着,通常用进行时
Eg:She was doing her homework as she was listening to the music. ②the moment :做连词用,一……就,=as soon as , immediately Eg:I gave her themoment I saw her.
③Not… until --- 直到……才 可以和 when 互换
Eg:He didn’t leave the office until he finished the work.=He left the office when he finished the work.
④before:It was /will be …before… 是常用句型 Eg:It was not long before I forgot it all.
⑤Since ---自从……, 通常主句用现在完成时 Itis /has been… since…是常用句型 Eg:I have never been there again since I graduated from the university. ⑥No sooner than --- 一……就……用于句首要求倒装 Eg:No sooner had he arrived than he went away again. 类比:Hardly(Scarcely) …when… ⑦Once --- 一但……就……
Eg:Once you see him, you will never forget him. ⑧Every time, each time 每次 做连词用
Eg:Each time he came to town, he would visit our school.
4、条件状语从句:If, unless, as long as, in case, provided that, on condition that ①If ---如果 ;②Unless --- 如果不, 除非=if not ; ③As long as --- 只要 ;④As (so) far as --- 据……所知; ⑤In case --- 假使, 如果
Eg:The plane cannot take off in case it rains. ⑥Provided that 如果,有时省略 that
Eg:The plane will be in good condition provided that it is taken care of carefully. ⑦On condition that --- 条件是…
Eg:He said that he would come to the meeting on condition that no one asked him to speak.
注:主从句的动作发生在将来时,则主句用将来时, 从句用一般现在时。
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If he arrives tomorrow, I will be waiting for him at the airport. 5、地点状语从句 Where,wherever
①Where --- 在……地方 eg:Where there is a will, there is away. ②Wherever --- 无论哪里
eg:Wherever you are, I will be right there waiting for you.
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6、原因状语从句because, as, since, now that, 和considering that, seeing that (语气逐渐减弱)
Because --- 因为,通常从句放在主句后. As --- 因为, 通常放在句首
Since ---既然 因语气较弱, 常译为既然 Now that --- 既然
considering that --- 顾及到 Considering that they are just beginners, they are doing quite a good job.
seeing that --- 由于 Seeing (that) quite a few people were absent, we decided to put the meeting off.
7、结果状语从句that, so that, so…that… such…that
①So… that --- 太……以至于 so 后面应用形容词或副词, 有时省略so只用that ②So that --- 因而,以便,为了 有时so 可以省去
③Such …that… ---太……以至于 用法与so…that相同,但such 后面应用名词。
8、目的状语从句 that, so that, in order that, for fear that, lest
①(So) that --- 以便, 从句中常常使用一些情态动词,如:can, could, may, might, should等
Eg:Let’s take the front seats (so) that we may see more clearly. ②in order that --- 为了, 与so that 相同 ③for fear that --- 生怕; 为了防止(某事发生)
Eg:He took the name down for fear that he should forget it. ④Lest --- 以防万一
Eg:The man decided to tell his boss the fact lest he would be angry with him.
9、比较状语从句 As…as…, not so (as)…as…, .…than…, the more… the more... ①As…as… --- 像……一样
Eg:Cultivation to the mind is as necessary as food for the body. ②Not so (as)… as… --- 不像……
Eg:The job is not so difficult as I thought it would be. ③The more…, the more --- 越…… 越
Eg:The more he listened to that song, the less he enjoyed it.
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10、让步状语从句Although, though, as, even if, even though, no matter, however, whatever,while, whether
①Although, though ---虽然 although 和though 可以互换,但although 只能放在句首。Though可以用于倒装。
Eg:Although it was raining, the plane managed to take off.
Child though he was, he did quite well. (Though可用as 替代) ②As --- 尽管 as 引导让步状语从句时,句子通常倒装。可与though 互换。 Eg:Busy as heis, he never misses a football match. ③Even if /even though ---即使
Eg:Even if you don’t like your boss, you should do your work. ④However --- 不论, however 引导让步状语从句时,句子通常倒装 Eg:The father couldn’t make his daughter smile however hard he tried. ⑤No matter (what, when, where, how) ---无论(什么,何时,何地,怎样) Eg:Please tell me the result no matter when you get it. *联系名词性从句
⑥While ---尽管 表示对照
Eg:While I have sympathy for you, I can’t help you. ⑦Whether ---不管,常与or not 连用
11、方式状语从句as, as if, as though ①as:与…… 一样
Eg:Do in Rome as the Romans do.
②as if, as though --- 仿佛, 由as if或 as though引导的从句中可用虚拟语气 Eg:She stood at the door as if (=as though) she were waiting for someone.
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