一,什么是状语从句 状语从句在复合句中作状语, 来说明一件事情发生的时间, 地点,原因,条件,结果等.
二,状语从句的分类 时间，地点，条件，原因，让 步，目的，方式，结果，比较
一、时间状语从句 常见连词： when / while / as; before / after; since; until; as soon as / immediately / instantly / the moment / the minute / the second; no sooner…than / hardly…when; the first time / every time / each time / next time
【完成例句】 (1)我正在做饭，这时，门铃响了。 I was doing some cooking when the doorbell rang. ＝The doorbell rang when I was doing some cooking. (2)我正要下班，这时，天开始下大雨了。 I was about to leave work when it began to rain heavily. 【结论1】when 通常意思为：当……时候； 正在那 时……
【完成例句】 (3)你在北京期间能否给我收集一些红树叶？ While you are in Beijing, can you collect some red leaves for me? (4)那个男孩在过马路时被迎面驶来的小轿车撞了。 While walking across the street, the boy was knocked over by a running car. 【结论2】 while从句只能用延续性动词，意思为： 在……期间。
【翻译句子】 (5)As time goes by, we are growing wiser and wiser. 随着时间的推移，我们变得越来越聪明了。 (6)She does her homework as she sings. 她一边写作业，一边唱歌。 【结论3】as 表示主句和从句的动作几乎同步 进 行 。 意 思 为 ： 一 边 …… ， 一 边 …… ； 随 着……
【完成例句】 (7)我还没到家就觉得饿了。(在到家之前就觉得 饿) I had felt hungry before I arrived home. (8)我还没来得及向她道歉，她就离开了办公室。 (在我能够说抱歉之前，她就离开了办公室) She left the office before I could say sorry to her. (9)还要过很久我们才能毕业。 It will be long before we graduate. 【结论4】 before 在……之前 ；还没来得及…… 才
【完成例句】 (10)我来上海已经4年了。 It's / has been four years since I came to Shanghai. 【结论5】 since “自从……以来”；是现在完成 时的标志。
【注意】从句中延续性动词意义为否定。 例：①我当医生已经3年了。(自从我成为医生以来， 时间已经过去3年了。) It is three years since I became a doctor ②他不当医生已经3年了。 It is three years since he was a doctor. ③我父亲不吸烟已有两年了。 It is two years since my father smoked. ④我父亲吸烟已有两年了。 It is two years since my father began to smoke.
【翻译句子】 (11)我一直睡到闹钟响为止。 I slept until the clock alarmed. (12)直到爸爸回来我才开始睡觉。 I didn't sleep until my father came back. 【结论6】until ①在肯定句中，表示动作持续 “到…为止”；② 在否定句中，常与not连用， 表示动作“直到……才开始”。
】 (13)她一到日本就给她妈妈打电话了。 She gave a ring to her mother immediately she landed in Japan. 【 结 论 7】as soon as / immediately / the moment / the minute / the second引导时间状语 从句，意为“一……就”
【完成例句】 (14)她一离开办公室电话就响了。 She had no sooner left the office than the telephone rang. (15)我们一吃过晚餐就开始修机器了。 We had no sooner had supper than we began to repair the machine. → No sooner had we had supper than we began to repair the machine. (倒装句形式) 【 结 论 8】 no sooner…than… / hardly…when… 刚……就……(注意：主句时态用had done；从句用 did )
【例句观察】 Every time I see the film, I can't help recalling my childhood in the countryside. 每当看那部电影，我就忍不住回想起在农 村度过的童年。 Call me earlier next time you come to Shanghai. 你下次来上海早点儿给我打电话。 【结论9】特殊的状语从句连词有： every time 每当，每次；the first time 第一 次……时候，next time 下次……时。
1, 连接词：if , unless( if---not), 2, 注意点：
so/as long as,
If I were you, I would ask the police for help.
在条件状语从句和结果状语从句中,表示与事 实相反的条件和结果。 1) 与现在事实相反： should (would were ? If 从句 V-ed …, 主句 could, might) +V原 should 2)与过去事实相反： (would ? If 从句had Ved ,主句 could,+have Ved might) 3)与将来事实相反： did ? If 从句 should 主句 should (would+V原 …,
eg.If I were you ,I would go at once. 我是你的话，我会马上走。
eg.If my brother were here, everything would be all right. 要是我哥在这儿，一切都没问题了。
eg.If you had come a few minutes earlier, you would/could/might have met the famous singer. 如果你早来几分钟的话，你就会 （可能会）见到那个著名歌唱家。 eg.If I had had the money last week, I should /would/could/might have bought a car.如果我上星期有了这笔钱，我就会 （可能）买1辆车。
eg.If it were sunny tomorrow, I would come to see you. 明天要是天气好的话，我来看你。 If it should rain, the crops would be saved. 假如天下雨，庄稼就一定（有可能）得救。 If it were to snow this evening, they would not go out .如果今晚下雪，他们将不出去了。
【完成例句】 (16)如果完成了作业，放学后他们就去打篮球。 They will play basketball after school if they finish their work. (17)除非被邀请，不然我是不会参加会议的。 I will not a
ttend the meeting unless I am invited. (18)一旦被发现，他就会被逮捕。 Once (he was) found, he would be arrested.
【结论】(1)常见连词：if / unless / once / as (so) long as / on condition that /in case/ provided(providing) that… / suppose (supposing) that… / say that… / let's say that… (2) unless＝ if…not , 意思是“如果不 / 没 有……”
三、原因状语从句 常见连词：because, for, since, as, now that, when 【例句观察】 —Why didn't you come yesterday? —你昨天为什么没来？ —Because my mum was ill. —因为我妈妈生病了。 It's because my mum was ill yesterday that I didn't come. 我昨天是因为妈妈生病才没来的。
【结论1】①because 表示直接的、必然的原因。 回答why问句； ② 强 调 句 中 只 用 because 表 示 原 因 。 It is because…that… 【注意】表示补充说明的原因用for，而且不能 放在句首。 The day has broken, for the birds are singing now. 天亮了，因为鸟儿在唱歌。
【完成例句】 (19)既然你回答不了这个问题，那我就问问别 人吧。 Since you can't answer the question, I'll ask someone else. 【 结 论 2】since 表 示 众 所 周 知 的 原 因 ， “ 既 然”，常放在句首。
【翻译句子】 (20)由于天黑了，我们还是下班吧！ As it's dark, we'd better go off work. 【结论3】 as 表示客观原因，“由于”，常放 在句首。
【翻译句子】 (21)既然你生病了，那就躺床上休息休息吧！ Now that you feel sick, you can have a rest in bed. 【结论4】 now that 通常表示用新出现的情况 作为原因，“既然”。
【翻译句子】 (22)Why do you want to find a new job when you have a good job already? 既然你已经拥有一份好工作了，为什么还要 再找新工作呢？ 【结论5】 when既然……(有轻微的责备口吻)。
【翻译句子】 (23)His request is unreasonable in that he knows we can't afford it. 他的要求不合理在于他知道我们付不起款。 【结论6】 in that－从句“在于……”。
四、结果状语从句 【例句观察】 She is such a clever girl that we all like her. She is so clever (a girl) that we all like her. 她是一个如此聪明的女孩以至于我们大家都很 喜欢她。 【 结 论 】 常 见 连 词 ： so / such…that… “ 如 此……以至于……”。要牢记下面的几个句型。 ①…so ＋adj. / adv.＋that… ②So adj. a / an ＋ n．＋that…
③So many / few / much / little(少)＋ n. (不可 数名词或可数名词复数)＋that… ④Such＋a / an＋adj. ＋ n．＋that… ⑤Such＋adj. ＋ n. (不可数名词或可数名词 复数)＋that… 【注意】 hat 后面必须是完整的句子，即必须 要有完整的主语、谓语、宾语。
五、目的状语从句 【翻译句子】 (24)为了赶上早班车，我们早早地就起床了。 We got up early in order that we could catch th
e first bus. 【结论1】 so that / in order that ＋从句(从句 用can / could / may / might ＋ 动词原形)为 了……
【翻译句子】 (25)以防错过早班车，我们早早地就起床了。 We got up early for fear that / lest / in case we should miss the first bus. 【结论2】 for fear that / in case that＋ 从句(从 句可以用虚拟语气即should＋动词原形)。 以防万一发生……
六、地点状语从句 【翻译句子】 (26)在你有问题的地方做个标记。 Make a mark where you have problems. 【 结 论 3】where 在 ……地 方 ＝ in the place where / in the place in which。
【翻译句子】 (27)无论他在哪，我都会找到他的。 I will find him wherever he may be. 【 结 论 2】wherever 无 论 在 …… 地 方 ＝ no matter where。
七、让步状语从句 【完成例句】 (28)尽管他很富裕，他从不浪费一个子儿。 Although he is rich, he never wastes a coin. 【结论1】although / though / while (只能位于 句首)虽然；尽管。
【翻译句子】 (29)①Old as my father is, he keeps up with his English study. 尽管爸爸年纪大了，他还是坚持学英语。 ②Child as he is, he knows something of electricity. 尽管他是个孩子，他懂一点关于电的东西。 (30)尽管他很努力，但是还是失败了。 Hard as he worked, he failed. (31)尽管汤姆已经尽力了，但还是无法从困境中走 出来。 Try as he might, Tom could not get out of the
【结论2】as 句型： ①表语(形容词 / 名词)＋ as / though ＋ 主语＋ 系动词，主句。 【注意】名词前不加任何冠词。 ②副词＋ as / though＋主语＋谓语动词，主句。 ③动词原形 ＋as / though ＋ 主语＋ might / may, 主句。
【翻译句子】 (32)即使明天下雪，我们也要出差。 Even if it snows tomorrow, we shall still go on business. 【结论3】even if / even though (有一定的假设意味) 即使， 纵然。
【翻译句子】 (33)不管那有多难，我们都要尽力完成。 No matter how difficult it might be, we'll try to complete it. 【结论4】 no matter how / what / where / who…， 无论怎么 / 什么 / 哪里 / 谁…… 【注意】 no matter 必须和特殊疑问词连用。
【翻译句子】 (34)不管你明天去不去，我们都要去郊游。 Whether you go or not tomorrow, we will go outing. 【结论5】whether…or…无论是否……
八、方式状语从句 【完成例句】 (35)她英语说得好像她是纽约本地人一样。 She speaks English as though she were a native of New York. 【结论1】 as if / as though ＋ 从句(从句的虚拟语气 与wish 后的宾语从句虚拟语气类似)。
【完成例句】 (36)按我刚才告诉你的那样做实验。 Do the experiment as I told you just now. 【结论3】as 表“正如”。
九、比较状语从句 【例句观察】 She is as tall as her mother. 她和她妈妈一样高。 【结论1】 as… as
和……一样…… She is not as healthy as her sister. 她不如她姐姐健康。 【结论2】 not as / so…as…不如……一样……； 不 和……一样……
The boy is taller than his father. 这个男孩长得比他爸爸高。 【结论3】比较级＋than 比……更加…… 【疑难】比较状语从句通常会结合三个倍数的表达 句型进行考查，如：A是B的三倍大有如下三种表达： (1) A is twice bigger than B. (2) A is three times as big as B. (3) A is three times the size of B.
【疑难剖析】 1. A is倍数＋adj.的比较级 (larger, heavier, more 等)＋than B. 2. A is倍数＋as＋adj. 的原级( large, heavy / many, much)＋ as B 3. A is倍数＋the＋表比较内容的名词(size, weight, area, width, length 等)of B. 注意：句型1的倍数比句型2、3的倍数少一倍。
一、时间状语从句 二、条件状语从句 三、比较状语从句 四、结果状语从句 五、原因状语从句 六、目的状语从句
when, while, before, after, until, since
if, unless as…as, not as/so…as…, …than… so…that…, such…that… Because, as, for so that even if/though, though/although where/wherever as if , as though
1. — Our holiday cost a lot of money. — Did it? Well, that doesn’t matter______ you enjoyed yourself. A. unless B. in case C. as far as D. as long as 2. — Shall Mary come and play computer games?
— No, ______ she has finished her homework. A. when B. if C. unless D. once
3. ______you understand the rule, you will have no
further difficulty. A. While B. Once
After A. where
dictionary, C. what
back______ it belongs. B. to which D. that 5. — Did the door-keeper let you in? — No. ______I tried to tell him I was your relative, he just didn’t believe me. A. Even if C. No matter B. However D. Whether
6. The fans in Chicago admire Michael Jordan_____ he is no longer fighting for the Chicago Bulls.
B. even if
7. They were surprised
that a child should work out the
problem ______ they themselves couldn’t.
8. Americans eat ______ vegetables per person today as they did in 1910. A. more than twice as many B. more than twice C. as twice as many as D. twice as many as
9. Food shortage will long be a world problem ______much
has been done to supply enough for everyone. A. although B. no matter C. since D. before
10. ______ she realized it was too late to go home. A. No sooner it grew dark than B. Hardly did it grow dark that C. It was dark after D. It was not until dark that 11. ______ the Internet is bridging the distance between people, it may also be breaking some homes or will cause other family problems. A. When B. While C. If D. As
12. How long do you suppose it is ______ he arrived there.
13. Tom often has to be called two or three times ______ he comes downstairs to have dinner. A. until B. when C. after D. before
14. It was a week______ the boy got ______ again. He was
sent to hospital at once.
A. before; to be hurt C. before; hurt B. since; to be hurt D. since; hurt
15. Their tent, ______ light as a feather, remained firm in the storm last night.
A. as if
16. ______ passed
your daughter has recovered and your son has the college entrance examination, you have
nothing to worry about.
A. Because B. Now then C. So long as D. Now that 17. ______ the living standard improves, people will take greater interest in traveling at home and abroad.
A. Because of
18. — Do you enjoy listening to records?
— I find records are often ______ or better than an actual performance.
A. as good as
B. as good
C. as well as D. as well
19. Quite the opposite in fact, I like to live ______ much traffic
A. in which there is C. wherever B. in the place there is D. where there is
20. — Why do you drink so much tea? — Well, ______ it doesn’t keep me awake in the nights. A. although B. as soon as C. as long as D. while
21. We had been out for long, ______ she felt sick. A. as B. when C. while D. after
22. John knocked at the door for nearly five minutes _____ his friend opened it. A. when B. before C. until D. while
23. I was half way back to the cottage where my mother lived ______ Susan caught up with me. A. before B. where C. when D. that
24. — Did you remember to give Tom the key to the bike? —Yes I gave it to him ______ I saw him. A. while B. once C. suddenly D. the moment
25. Some people waste a lot of food ______ others haven’t
enough to eat.
A. however 26. ______ A. As if B. when C. as D. while
the Egyptian people were warlike, they found time B. Even though C. Once D. As soon as
for peaceful games.
27. ______ there is something else to discuss, I’ll declare the
meeting closed. A. As B. While C. Since D. Unless
28. — I’d like to invite you to my new house next weekend.
__Thank you, but ______ I’ll have time I’m not sure at the
moment. A. when B. as C. in case D. unless
29. _____, you mustn’t go against rules.
A. No matter what to do C. What you do B. Whatever to do D. Whatever you do
30. The patience don’t have to wait all day _____ the doctor
works fast. A. if B. whether C. unless D. that