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1、冀教版九下第六单元语法强化训练语法全面透视状语从句状语从句在复合句中起状语作用，修饰主句中的动词、形容词或副词。状语从句又从属连词引导，从属连词在从句中不充当成分。 一 时间状语从句 引导时间状语从句的词有when，before，after，until，as soon as，while 等，具体用法如下： 1. when引导的时间状语从句。1) when表示主句的动作和从句的动作同时或先后发生。它既可以指时间段也可指时间点， 从句中既可用延续性动词又可用非延续性动词。I feel very happy when you come to see me. 你（们）来看我，我感到很高兴。 When
2、you are crossing the street，you must be careful. 你（们）过街道时，一定要小心。 Someone knocked at the door when I was sleeping. 当我正在睡觉时，有人敲门。 2）当从句的动作发生于主句动作之前，只能用when 引导这个从句，不可用as 或 while。 When you have finished your work, you may have a rest. 你完成作业了才可以休息。3）as, when 引导短暂性动作的动词表示“当时”可以互换。 Just as / Just when / Wh
3、en I stopped my car, a man came up to me. 我停车时，一个男人朝我走过来。He smiled as he passed. 他路过的时候笑了一下。 （两个都是短暂动作） 4）as引导时间状语从句与when相似，但侧重强调主从句动作同时间点或同时间段进行。 As she sang, the tears ran down her cheeks. 她一边唱歌，眼泪一边从脸颊淌下。 Helen heard the story as she washed. 海伦一边洗衣服一边听故事。 He saw that she was smiling as she read.他
4、看到她一边看着书一边笑。（两个都是延续性动作） 友情提示when也可以作并列连词，表示一个动词正在进行的时候，突然间发生了另外一件事。 I was fishing by the river，when someone called for help. 我正在河边钓鱼，就在那时有人求救。 We were working in the chemistry lab，when the lights went out. 我们正在化学实验室工作，突然灯都熄灭了。2. while引导的时间状语从句，意为“与同时，在期间”，while的从句中常用延续性动词或表示状态的词。 They rushed in whil
5、e we were discussing problems. 当我们正在讨论问题时，他们冲了进来。 Father was cleaning the car while I was playing computer games. 当我正在打电子游戏时，爸爸正在清洗汽车。友情提示while也可以作并列连词，表转折的关系，相当于but，意为“然而”。 I like listening to music，while my brother likes doing sports. 我喜欢听音乐，而我的兄弟爱好运动。3. as表示某事一发生，另一事立即发生。 As the sun rose ，the fro
6、g dispersed. 太阳一出来雾就消散。 They strolled into the garden as the music ceased. 音乐声一停，他们就走进花园。 友情提示从句表示 “时间推移” 只能用as，不用when 或while。 As the day went on, the weather got worse.日子一天天过去，天气越变越坏。 We get wiser as we get older. 我们随着年龄的增长而变得聪明起来。4. since引导的时间状语从句，译为“自从”，主句常用现在完成时，从句常用一般过去时。 We have made many dump
7、lings since we began to cook. 自从我们开始做饭起，我们已经包了许多饺子了。 We havent seen each other since we parted . 我们自从分手以后一直没见过面。 友情提示常用句型：It is + 时间段 + since从句 意为：自从有多长时间了。 It is six years since she graduated from the university. 自从她大学毕业已有六年的时间了。5. before 意为“在之前”，引导时间状语从句时，表示主句的动作发生在从句的动作之前。 We cleaned the classroo
8、m before we left school yesterday. 昨天离开学校之前，我们打扫了教室。 He had been a cook before he went to college. 他上大学前曾当过厨师。 6. after 意为“在之后”，引导时间状语从句时，表示主句的动作发生在从句的动作之后。 After you use plastic bags，you mustnt throw them about. 你（们）用过了塑料袋之后，不准到处乱扔。 He called me after he had finished his work. 他在工作完之后给我打了个电话。 7. ti
9、ll / until 意为“直到时”，引导时间状语从句时，表示主句的动作发生在从句的动作之前。 1）肯定形式表示的意思是“做某事直至某时”，动词必须是延续性的。意为“直到为止”,强调主句动作的结束，用延续性动词. Ill stay here until you come back. 我会呆在这里，直到你回来。（stay表示的动作可以持续）I will wait for my friend until / till he comes. 我要一直等到我朋友来。 I slept until midnight. 我一直睡到半夜时醒了。 友情提示until可用于句首，而till通常不用于句首。 Unti
10、l you told me, I had heard nothing of what happened. 直到你告诉我以前，出了什么事我一点也不知道。2）否定形式表达的意思是“直至某时才做某事”。“ not until ”引导的时间状语从句，意为“直到才”,强调主句动作的开始。 He didnt go to bed until he finished his homework. 完作业才睡觉。 We wont start our discussion until / till he comes. 我们要等到他来了，再开始我们的讨论。 Dont get off the bus until it
11、has stopped. 公共汽车停稳后再下车。 3) not until 放在句首，主句用倒装。 Not until the early years of the 19th century did man know what heat is. 直到19 世纪初，人类才知道热能是什么。 Not until I began to work did I realize how much time I had wasted. 直到我开始工作，我才认识到了我已 7as soon as 意为“一就”，表示从句的动作一发生，主句的动作马上就发生。 Ill tell him about it as soon
12、 as he comes back.他一回来我就告诉他这件事。 As soon as I got home, it began to rain. 二地点状语从句 地点状语从句通常由where（哪里）和wherever（无论哪里）引导。 Where there is a will，there is a way. 有志者，事竟成。 Where I live there are plenty of trees. 我住的地方树很多。 Wherever I am I will be thinking of you. 不管我在哪里我都会想到你。 三原因状语从句 原因状语从句常用的引导连词有：because
13、, since, as和for。 1because语势最强，用来说明人所不知的原因，回答why提出的问题，可放在句前或后。 -Why did you go？你为何去？- I went because Tom told me to go. 那是因为汤姆叫我去。 He was angry not because we were late but because we made a noise. 他很生气不是因为我们来迟了，而是因为我们弄出了声音。 2当原因是显而易见的就用as。as 和since的从句常放在主句之前。 As it was raining hard，we had to be indo
14、ors. 由于雨太大，我们只好呆在家里。 3当原因已为人们所知或就对方陈述的事实作为理由就用since。 Since the weather is so bad, we have to delay our journey. Since you feel ill，youd better not go to work. 既然你感觉不舒服，你最好不要去上班了。 4由because引导的从句如果放在句末，且前面有逗号，则可以用for来代替。但如果不是说明直接原因，而是对某一事实加以推断，就只能用for。 He is absent today, because / for he is ill. He m
15、ust be ill, for he is absent today. （must在这里表推断,意为“一定”）四目的状语从句 目的状语从句常用的引导连词有so that和in order that，意为“以便，为了，目的是”，通常在从句中有情态动词, 表示某种可能性，是主观意念。Please speak more slowly so that we can make full notes. 请讲慢一点，以便我们能作详细笔记。 I shall write down your address so that I may not forget. 我要把你的地址记下来，以免忘记。 I sent the letter by air mail in order that it might reach him in time. 这封信我以航空信发出，以便他能及时收到。 五结果状语从句 结果状语从句常由so that 或 such that引导，意为“如此以致于”，其规律由so与such的不同词性决定。such
