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人才网校 rcxy

状语从句. 状语从句在主从复合中修饰主句中的动词、形容词或副词等,状语从句由从属连词引导,与主句连接,位于句首时,常用逗号与主句分开,位于句末时,其前一般不用逗号。状语从句根据其用途可分为时间状语从句、原因状语从句、结果状语从句、条件状语从句、让步状语从句、方式状语从句、目的状语从句等。. 人才网校 www.rcxy.com. 时间状语从句. 条件状语从句. 原因状语从句. 目的状语从句. 人才网校 www.rcxy.com. 结果状语从句. 人才网校 www.rcxy.com. grammar. 时间状语从句.

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人才网校 rcxy

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  1. 状语从句 状语从句在主从复合中修饰主句中的动词、形容词或副词等,状语从句由从属连词引导,与主句连接,位于句首时,常用逗号与主句分开,位于句末时,其前一般不用逗号。状语从句根据其用途可分为时间状语从句、原因状语从句、结果状语从句、条件状语从句、让步状语从句、方式状语从句、目的状语从句等。 人才网校 www.rcxy.com

  2. 时间状语从句 条件状语从句 原因状语从句 目的状语从句 人才网校 www.rcxy.com

  3. 结果状语从句 人才网校 www.rcxy.com

  4. grammar 时间状语从句 (1)当主句是一般将来时态或祈使句,表示将来的意义时,从句用一般现在时,简称“主将从现”。 I'll ring you up as soon as I get to Beijing. 我一到北京就给你打电话。 (2) when引导的时间状语从句表示主句和从句的动作同时发生;before表示主句的动作发生在从句的动作之前;after则表示主句的动作发生在从句的动作之后;as引导时间状语从句时,强调并行发生,不分先后。 (3) until/till引导的时间状语从句。 ①主句的谓语动词是延续性动词时,主句用肯定形式,表示 这一动作或状态一直延续到until/till所表示的时间为止。如: I'll wait for you till you come to see me. 我会一直等到你来看我。 人才网校 www.rcxy.com

  5. grammar 时间状语从句 ②主句的谓语动词是非延续性动词时,用否定形式表示主句的动作直到uritil所表示的时间才发生。构成句式not...until,有时不用not,而用其他如never,nothing等表否定意义的词。 I didn’t go to bed until I finished my homework. 我直到完成作业才去睡觉。 (4)since引导的时间状语从句,表示“自……以来”,主句用 一般现在时或现在完成时,从句用一般过去时。结构为:It has been ...since+从句/It is ...since+从句。 I have worked in this school since I graduated from Beijing University. 从北京大学毕业以后,我就一直在这所学校工作。 It is 10 years since I began to study English. 我学英语十年了。 人才网校 www.rcxy.com

  6. grammar 条件状语从句 (1)主句为一般将来时,从句用一般现在时。 I'll visit the Creat Wall if it doesn't rain tomorrow. 如果明天不下雨,我将去长城。 (2)如果if引导的条件状语从句所表示的前提或条件将来可以实现或正在进行,从句要用现在完成时或进行时,主句通常用将来时。 We will give you a good price if you are thinking of buying it. 如果你考虑买它,我们会给你一个好价钱。 (3)“祈使句+and/or引导的结果状语从句”中,祈使句在意 义上相当于一个条件状语从句。如: Use your head,and you'll find a way. =If you use your head,you'll find a way. 动动脑筋,你就会想出办法来。 人才网校 www.rcxy.com

  7. grammar 原因状语从句 (1)原因状语从句通常用because,since,as引导。这三个所表示的语气由because到as逐渐减弱,由why提出的问题because来回答。 --Why are you late? --你为什么迟到? --Because I'm ill. --因为我生病了。 (2)如果状语从句所表示的原因是人们已知的事实,就要用since,而不用as或because。since在这里的意思是“既然”。 Since you can't answer the question,you can ask someone for help. 既然你不能回答这个问题,你可以找别人帮忙。 人才网校 www.rcxy.com

  8. grammar 目的状语从句 (1)引导目的状语从句的词组有so that,in order that等, 语中常含有may,might,can,could,will,would等情态动词。如: He must get up early so that he can catch the first bus. 他必须早点起床,以便赶上第一班车。 (2)当从句主语与主句主语一致时,可用so as to,in order to。 He worked day and night in order that he could succeed. = He worked day and night in order to succeed. 他夜以继日地工作为的是取得成功。 人才网校 www.rcxy.com

  9. grammar 结果状语从句 (1)由so...that,such...that引导。 so...that与such...that的区别: so+形容词或副词+that such+ a/an(+形容词)t单数名词+that such+(形容词)+复数名词+that such+(形容词)+不可数名词+that so+形容词+a/an+单数名词+that 当名词前面有many或much修饰时,用so而不用such。 She is such a lovely girl that we love her very much. = She is so lovely a girl that we love her very much. 她是一个如此可爱的女孩,以至于我们都很喜欢她。 We have so much time that we can finish the work very well. 我们有如此多的时间以至于我们能很好地完成工作。 人才网校 www.rcxy.com

  10. grammar 结果状语从句 (2)so...that句型的否定形式可用简单句too…to…或not… enough to代替。 He is so young that he can’t go to school. = He is too young to go to school. = He is not old enough to go to school. 他太小了不能去上学。 人才网校 www.rcxy.com

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