语法系列4 状语从句.ppt

状语从句 状语从句 定义：在复合句中，修饰主句的动词、形容词或副词等的从句叫状语从句。 位置：状语从句既可以放在主句前面（通常用逗号隔开），也可以放在主句后面。 分类：状语从句根据其作用可分为时间、地点、原因、条件、目的、结果、让步、比较和方式等从句。 类型 从属连词（引导词）和例句 时间 连 词 （常用）when, while, as, as soon as, before, after, since, till, until （特殊）the moment, the minute, the second, the instant, instantly, immediately, directly, no sooner…than, hardly/scarcely…when, every time, each time, the first time, by the time, by the end of, once 例 句 ▲ He told me the news the moment he saw me. ▲ By the time I got to the airport, the plane had taken off. Ⅰ. 状语从句分类表 类型 从属连词（引导词）和例句 地点 连 词 where, wherever 例 句 ▲ Make a mark where you have any question. 原因 连 词 because, since, as, now that 例 句 ▲ Now that everyone is here, let’s begin our class. 条件 连 词 （常用）if, unless （特殊）on condition that, as/so long as, provided/providing that, in case（万一） 例 句 ▲ You won’t pass the exam unless you work hard. ▲ Send us a message in case you have any difficulty. 类型 从属连词（引导词）和例句 目的 连 词 so that, in order that, in case（以防） 例 句 ▲ He bent down so that/in order that he couldn’t be seen. ▲ Take an umbrella in case it rains. 结果 连 词 so…that, such…that 例 句 ▲ He is so kind (a man) that we all like him. ▲ He is such a kind man that we all like him. 让步 连 词 （常用）although, though, even though/even if （特殊）as, while, no matter how (when, who, where, what, which), however, whenever, whoever, wherever, whatever, whichever 类型 从属连词（引导词）和例句 让步 例 句 ▲ Although/While he is a child, he knows a lot. = Child as he is, he knows a lot. ▲ No matter how difficult the task was, they tried their best to finish it. = However difficult the task was, they tried their best to finish it. 比较 连 词 as (so)…as, than 例 句 ▲ This room is three times as big as that one. = This room is three times the size of that one. 方式 连 词 （常用）as, as though/as if （特殊）the way 类型 从属连词（引导词）和例句 方式 例 句 ▲ When in Rome, do as the Romans do. ▲ Sometimes we teach our children the way our parents have taught us. Ⅱ.状语从句的时态 在时间或条件状语从句中，通常用“一般现在时”或“现在完成时”表示将来。如： 1. If it doesn’t rai