英语语法状语从句详解.ppt

句高中总复习第一轮英语 返回目录 十四、状语从句  句高中总复习第一轮英语 返回目录 语法精讲 状语从句可分为时间、地点、原因、结果、条件、方式、让步、比较和目的 等九大类。状语从句可位于主句之前,也可位于主句之后。 考点一时间状语从句 1. when/while/as When可以和延续性动词连用,也可以和短暂性动词连用,而 while和as只能 和延续性动词连用。when引导的从句的谓语动词可以在主句谓语动作之 前、之后或同时发生,而wile和as引导的从句的谓语动作必须和主句谓语 动作同时发生。as常表示“随着,一边 When john arrived i was cooking in the kitchen. 约翰到时,我正在厨房做饭。 They arrived while/when/as we were having dinner. 我们正在吃饭的时候他们到了 John sings as he works 约翰一边工作,一边唱歌。  句高中总复习第一轮英语 返回目录 2. as soon as, immediately, directly instant ly the moment/minute second/instant, no sooner.than., hardly/rarely/scarcely. wher 这些从属连词都译为“-……就……”,表示从句的动作一发生,主句的动 作随即就发生 He started as soon as he received the news 他一接到消息就动身了 The moment I heard the voice, i knew father was coming 我一听到那个声音,我就知道父亲来了。 The man began to work immediately he arrived there 那个人一到那儿就开始工作 No sooner had i arrived home than it began to rain. 我一到家就开始下雨  句高中总复习第一轮英语 返回目录 3til1和unti1的用法 (1)肯定句中,主句谓语动词应是延续性动词,意为“某动作一直延续到某时 间点才停止”。 He remained there till/until she arrived. 他在那儿一直待到她到达 (2)否定句中,主句谓语动词应是非延续性动词,从句为肯定式,意为“某动 作直到某时间点才开始 i was not aware that i forgot my ticket till/until i got to the station.直到到了车站我才意识到我忘带车票了。 (3)til不可置于句首, until可以。 (4)强调和倒装句中,not..unti应视为一个整体,同时被强调或置于句首。 Not until we know more will we be able to improve the situation 我们只有了解更多情况才能改善现状。 It was not until I had read your letter that I knew the truth. E 到读了你的信我才知道事情的真相。  句高中总复习第一轮英语 返回目录 4. SInce (1)从句的谓语动词一般是短暂性动词,主句谓语动词则是延续性动词或反 复发生的动作。 Since引导的从句时态为一般过去时,主句时态为现在完 成时或现在完成进行时。 She has been working for the company since she left school. *t 自从毕业一直在这家公司工作。 (2)句型“Itis/ has been-时间段+ sInce.”意为“自从……到现在多 久了 It is a long time since I saw you last time =I have not seen you for a long time.我很久没见过你了 It has been two years since I was admitted to this key middle school FI was admitted to this key middle school two years ago 自从我被这所重点中学录取已经两年了 It is three years since I smoked a cigar. It is three years since i stopped smoking a cigar. 我三