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课件网) 2020年高考语法系统复习之连词及状语从句考点 1.并列连词归纳 属性 连接词 典型例句 并列关系 and，not only... but also，neither...nor... Their car broke down halfway and they had to stay in a small inn for the night. 选择关系 or，either...or...，otherwise，or else Either you are mad，or I am. 转折关系 but，yet，still，however，while，when Mary was a nice girl，but she had one shortcoming. 因果关系 for，so，thus，therefore Someone is coming，for the dog is barking. (2)or，either...or...连接并列句表示选择意义。如： The children can go with us, or they can stay in.(选择) 孩子们可以跟我们一起去，也可以留下。 Be careful，or you will break your neck.(否定条件) 小心点，否则你会折断脖子的。 1．时间状语从句 通常由从属连词when，whenever，as，while，before，after，as soon as，till (until)，since，once(一旦)等引导。如： Please don't talk so loud while others are working. 别人工作时，请不要大声说话。 Once you understand the rules of the game, you'll enjoy it. 一旦你理解了游戏规则，你就会享受到它的乐趣。 (1)一些表示时间的名词词组如the moment，the minute，the day，the year，every time，next time，副词immediately，directly，instantly等也可引导时间状语从句。如： He left Europe the year World War Ⅱ broke out. 二战爆发那年他离开了欧洲。 The rescue workers were sent to the stricken area immediately the earthquake happened. 地震一发生援救人员就被派往灾区。 My sister came directly (＝as soon as)she got my short message. 我姐姐一收到我的短信就来了。 (2)when，while和as when既可引导一个持续动作，也可引导一个短暂动作，亦可用于主句和从句动作同时发生或从句动作先于主句动作时。如： When they came home，I was cooking dinner. 当他们回家时我正在做饭。 while引导的动作必须是持续性的，强调主句和从句动作的同时发生。如： She watched TV while (she was) eating. 她一边吃饭一边看电视。 as用于引导“在某行为的继续中发生某事”的“继续之行为”，所以多与过去进行时连用。如： He sang songs as he was taking a bath. 他边洗澡边唱歌。 (3)till和until till和until意义相同，多数情况下可换用，但用于强调，放在句首时多用until；在强调结构或与not连用时多用until。如： Nothing can be done till (until) the boss returns. 老板不回来什么也做不了。 You may stay here until the rain stops. 你可以在这里待到雨停。 2．地点状语从句 通常由连词where和wherever引导，从句可位于主句之前，也可位于主句之后。如： Make a mark where you have any questions. 在你有问题的地方作个标记。 (1)地点状语从句在句首时常兼有抽象条件意味。如： Where there's a will，there's a way. 有志者事竟成。 Where (ver) there's plenty of sun and rain，the fields are green. 哪里阳光雨水充足，哪里的田野就绿油油。 3．原因状语从句 通常由because，since，as，now that，seeing (that)，considering that等引导。如： Seeing that it's raining，we'd better stay indoors. 既然下雨，我们最好待在室内。 Now that you have grown up, you must do it by yourself. 既然你已经长大了，就必须自己做这件事。 Considering that I have told you three times, you must know it. 鉴于我已经告诉了你三次，你必须知道它。 (1)目的状语从句中的 ... ...
