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课件网) 语法总复习专题九 状语从句 观察下列句中的划线部分，并说明在句中所充当的成分 (1) Tom speaks English very fast. (2) The scenery here is especially beautiful. (3) The meeting is going to be held in Room 321 tomorrow morning. (4) Arriving there, you can call me. (5) We' ll go where the people need us. 状语/状语从句的定义 1.什么是状语？ 在一个句子中，用来修饰实义动词（词组）、形容词（短语）、副词或整个句子的成分，叫做状语。 2.什么能充当状语？ 能充当状语的成分包括：副词、介词短语、非谓语动词、从句。 3.状语的位置？ 状语的位置极其灵活，可以随意放置在句中，但是放在句首或句末的情况居多。如果放在句首的话，通常用逗号隔开。 我在妈妈出去的时候吃了一颗苹果。 主语 时间状语从句 时间状语 谓语 when my mother was out. 句子 I ate an apple yesterday. 我昨天吃了一颗苹果。 宾语 时间状语 状语/状语从句的定义 I ate an apple 我在我买苹果的地方吃了一颗苹果。 主语 地点状语从句 地点状语 谓语 where I bought it. 句子 I ate an apple at home. 我在家里吃了一颗苹果。 宾语 地点状语 状语/状语从句的定义 I ate an apple 由一个句子充当状语，表明谓语动作或谓语状态发生的时间、地点、原因、条件、结果、目的、方式等情况，叫状语从句，该句子常用连词引导。 e.g. 1) He was tired for a long walk. 2) He was tired because he walked long. 3) You should take an umbralla with you in case of rain. 4) You should take an umbralla with you in case it will rain. 原因状语 原因状语从句 让步状语 让步状语从句 状语/状语从句的定义 考点1 时间状语从句 时间状语从句 【典例】(2020·全国卷Ⅲ) _____he asked the villagers on the banks of the river where he could find the legendary(传奇的) artist, they smiled and pointed down the river. 考查时间状语从句的连词 When引导时间状语从句，符合语境。 首先判断是否用连词，与定语从句要区别开来。连词连接的往往是两个完整的句子，其中一个用连词连接，是状语从句。如果其中一个句子中缺少成分，那么就是定语从句，不能用引导状语从句的连词。 When when while as before / after as soon as till/until since 普 通 连 词 特 殊 连 词 the moment the minute the second the instant every/each time next time any time by the time the first time immediately directly instantly 时间状语从句 (1) 当连词后面从句的谓语动词为_____,表示“_____”，when/while/as 都可以用；当连词后面从句的谓语动词为_____, 只能用_____ /_____。 延续性动词 当...时候 短暂性动词 when as e.g. 1) His phone rang when/while/as he was sleeping. 2) His phone rang when/as he opened his eyes. when/while/as (2) 在“正在做......这时突然......_____”以及“正要做...这时突然..._____”句型中，只能用when。【when包含“突然”的意思】 e.g. 1) I was walking in the park when suddenly it started to rain. 2) Tom was about to close the window when his attention was caught by a bird. when/while/as be doing sth. when... be about to do sth. when... (3) 表示两件事对比转折，意为”_____”，只能用while; 表示让步关系放句首，意为”_____”，用while。 e.g. 1) I was doing the dishes while my husband was watching TV. 2) While I admit the problems are difficult, I don’t agree that they can’t be solved. when/while/as ... ...
