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课件网) 状语? 某个状态的程度 可以作状语的有? 你必须把车停在这里。 你必须把车停在角落里。 你必须把车停在人很少的地方。 You must park your car here. You must park your car at the corner. You must park your car where there are few people. √状语从句指用作状语时,起副词作用的句子,也称副词性从句。 √状语从句通常由一个连词或起连词的作用 词组引导。 √状语从句可以表示时间、地点、原因、目的、结果、条件、方式、让步和比较九种意义。 状语从句的划分 状语从句有九种: 时地原因条状补, 目比结果方让步, 连词引导各不同。 主句通常前面走, 连词引导紧随后, 从句若在主前头, 主从之间有个逗。 引导词的解题步骤 状语从句 一、时间状语从句 引导时间状语从句的连词和词组有: when, while,as (当……时); as soon as, the moment, directly, instantly, immediately(一…… 就);until,till (直到…);by the time(到……的时候),before(在…以前) after (在……以后) since ,ever since (自……以来); once(一旦); whenever(任何时候); every time, each time(每次)等。 1.when,while,as引导的时间状语从句。 (1)when引导时间状语从句时表示“当……的时候”。 when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,且动作既可和主句的动词同时 发生又可在主句的动作之前或之后发生。如: Sorry, I was out when you called me. 对不起,你给我打电话时我刚好外出了。 When he had finished his homework, he took a short rest. 在他完成作业之后,他休息了一会儿。 (3)表示“一……就……”,相当于 immediately, after, as soon as,引导时间状语从句。 When I had finished dinner I went to bed. 吃完饭就睡觉了。 I ring you up when I arrive in Beijing. 我一到北京就给你打电话。 (4)表示“每当,每次”,相当于every time 或whenever。 She always turns to us for help when she is in trouble。 每当她遇到困难,她总是向我们求助。 It is freezing cold here when it snows. 每当这儿下雪,天气就十分寒冷 。 (5)when还可以有其他的意义,引导其他的状语从句。 作“既然,考虑到”讲,想当于since,considering that, 引导原因状语从句。 How can they learn anything when they spend all their spare time watching television 既然他们把所有的空闲时间都用来看电视了,他们怎么能 学到东西呢? Why do you want a new Job when you have got such a good one 既然你已经有了这么好的一作,为什么还要再找新的工作呢 2.(1)while引导时间状语从句时,表示“当……的时候” 它强调主句的动作与从句的动作同时持续地进行, 从句的谓语动词必须是延续性动词。 While she was reading a novel, she fell asleep. 她看小说的时候睡着了。 Strike while the iron is hot. 趁热打铁。 (2)while 作为并列连词,连接两个并列句子,意为“而,却” 表示对比。 He went out for a walk,while I stayed at home. I like singjing,while she likes dancing. (3)while 可表示尽管,相当于although。 while 引导状语从句时,应注意以下几点: 1. while 引导的时间状语从句既可放在句首,也可放在 句末;而 while 引导的让步状语从句一般放在句首,不 放在句末。另外,也可以从意义上加以区分。例如: While he was tired, he went on working. 虽然他累了,但他还是继续工作。 ( while 引导让步状语从句) While he was tired, he would have a rest. 他累了就休息一会儿。 ( while 引导时间状语从 ... ...