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狀語從句用法講解和練習(已修改)

2025-07-11 06:26 本頁面
 

【正文】 第 章 狀語從句學習指導狀語從句在句子中作狀語,用來修飾主句或主句的謂語。一般可分為九大類,分別表示時間、地點、原因、目的、結果、條件、讓步、比較和方式。盡管種類較多,但由于狀語從句與漢語結構和用法相似,所以理解和掌握它并不難。狀語從句的關鍵是要掌握引導不同狀語從句的常用連接詞。 現(xiàn)分別列舉如下:狀語從句分九類:從句種類主要從屬連詞 1時間狀語從句 when, while, as, before, after, until, till, whenever 2條件狀語從句 if, unless 3目的狀語從句 in order that, so that 4結果狀語從句 so…that, such…that, so that, so 5原因狀語從句 because, as, since 6讓步狀語從句 although, though, even though(if), while 7方式狀語從句 as if, as though 8地點狀語從句 where, wherever 9比較狀語從句 than, as在這一章節(jié)的學習中,要求同學們掌握各類狀語從句基本概念,并能夠靈活應用。第一節(jié) 時間狀語從句1. 時間狀語從句用一般現(xiàn)在時表示將來。連接時間狀語從句的連接詞有:when(當……的時候),while(當……的時候),as(當……的時候),once( 一旦),till( until)(一直到……,直到……才),by the time(到……時),as soon as(一……就)the moment(一……就).since(自從 ……).before(在……前).a(chǎn)fter(在……后)2.when,while,as均可表示“當……的時候”。 when強調(diào)“特定時間”,表示主句謂語動詞的動作與從句謂語動詞的動作是同時發(fā)生的,或從句的動作發(fā)生在主句的動作之前;while表示的時間是一段,而不是一點,as多用在口語中,強調(diào)“同一時間”或“一前一后”,有時還有“隨著”的含義。 I39。ll go on with the work when/e back tomorrow.我明天回來后會繼續(xù)做我的工作。 When spring came, he felt like a ,他想去旅游。 As spring warms the good earth,all flowers begin to bloom.(as有“隨著”的含義)as, when, while都表示主、從句的動作或狀態(tài)同時發(fā)生,但三者也有區(qū)別。as和when引導的從句既可表示一點時間,也可表示一段時間,從句中的謂語動詞既可以是持續(xù)性動詞,也可以為短暫性動詞,經(jīng)常可以互換使用;while引導的從句通常表示一段時間,從句中宜用持續(xù)性動詞作謂語。當從句中的謂語動詞為持續(xù)性動詞時,這三者可以通用(前面例句中已有體現(xiàn)),再如: Mother was worried because little Alice was ill, especially as / when / while father was away in ,因為小艾麗思病了,特別是當父親遠在法國的時候。 如果從句和主句要表示一個人的兩個動作交替進行或同時完成時,則多用as,可譯為“一邊......,一邊......”。例如: He looked behind from to time as he ,一邊不時地往后看。 As time goes on, it’s getting warmer and warmer..隨著時間的推移,天氣變得越來越暖了。 I thought of it just as you opened your 。(若表示兩個短促動作幾乎同時發(fā)生時,用as的場合多于when.) 當主從句之間表示轉折或對比關系時,多用while, 不用as或when。如: She thought I was talking about her daughter, while in fact, I was talking about my ,而事實上,我在談論我的女兒。 如果表示從句的動作在主句的動作“之前”或“之后”發(fā)生時,多用when(=after), 不用as或 while。此外,when還含有“at that moment”的意思(= and then),引起的句子不能放在句首,也不能用as, while來替換。例如: He was about to leave when the telephone ,忽然電話鈴響了。 We were watching TV when suddenly the lights went ,突然燈滅了。 They had just arrived home when it began to ,天就開始下雨了。3.till/until,表示“一直到……”,主從句都用肯定式;表示“直到……才”,主句否定,從句肯定。 He worked until it was dark. 他一直工作到天黑。 He did not get up till his mother came in. 一直到母親進來他才起床。4.once“一旦”,by the time“到……時”。 Once you see her, you will find what I said is true. 一旦你見到她就會發(fā)現(xiàn)我說的是對的。 by the time+現(xiàn)在時,主句用將來完成時。 By the time he arrives, we will already have left here. 等他到達時,我們將已離開這兒了。 by the time+一般過去時,主句用過去完成時。 By the time he arrived, we had already left 。5.a(chǎn)s soon as,the moment表示從句動作一發(fā)生,主句動作隨即發(fā)生,通常譯為“一……就”。 As soon as I finish the work, I39。ll go to see you. 我一完成工作就會來看你。 She came to the scene the moment she heard the 。6.since“自從”, before“在……前”,after“在……后”,It was not long before意為“不久”。 since引導從句用非延續(xù)性動詞或“過去時間點”或“過去時間段+ago”,主句用完成時態(tài)。 Since he graduated, he has worked in this city. 他畢業(yè)后一直在這個城市工作。 I haven39。t seen him since last year/ three years ago. 去年以來/3年來,我沒見過他。選出最佳答案1) he was listening to the music, John fell asleep.A. After B. Before C. While D. As soon as2) How did you try to get to school on time you missed the school bus.A. when B. how C. why D. that3) He was riding to school he was hit by a car this morning.A while B. when C. as D. so4) Lucy knew nothing about it her sister told her.A. because B. until C. if D. since5) The policeman asked the child cross the street the traffic lights turned green.A. not。 when B. don39。t。 before C. not to。 until D. not to。 since6) The book was so interesting that he had rea
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