LeslieLam状语从句.pptVIP

LeslieLam 时间状语从句 考点一 When; While; As 引导的时间状语从句 ①be doing when 正在做…突然 be about to do when 刚要做…突然 Eg I was sleeping when the phone rang. He was about to leave when I came. ②while的主句动作发生在从句动作之中。通常从句是进行时或是系表结构 Strike the iron while it is hot. I met him while I was shopping. ③ as 强调“一边…一边…”或是两个动作前后伴随发生 Eg They talked as they walked. My cap was blown away as I stood up 即：通常在表示“当”时，while的从句为进行时或系表，动作为延续性的。 As表示一边…一边… 而when在没有特殊情况下时可以替代while和as。 考点二 Since引导时间状语从句 Since引导通常用完成时 注： ① It is/ has been + 一段时间 since + 过去时 Eg It is 6 years since I left. ② 当since后的动词为延续性动词，要翻译成对应的反义词 It is 4 years since I smoked. 对比：It’s 6 years since I left It is 6 years since I lived here. 考点三：关于before 注意下列的几个特殊句型： It will be + 一段时间+ before+现在时“还要过多久…才” It was + 一段时间 + before 过去时.“过…才” It is + 一段时间 + since + 过去时 It has been+ 一段时间 +since +过去时 It is/was + 时刻 + when + 句子（即以when引导的定语从句） 1. It will be years ____ we meet again. A. when B. that C. before D. since 2. It is ten years ____ I came to this town. A. when B. that C. before D. since 3. It is ten years ago ____ I came to this town A. when B. that C. before D. since 4.It was 1986____his first novel came out. A. when B. that C. before D. since 考点四 not…until ① 主将从现 He won’t go to bed until I come back ② 倒装 Not until I come back will he go to bed. ③ 强调句 It is not until I come back that he will go to bed. 注意：倒装和强调的主句都没有not；倒装和强调的部分分别是什么 考点五 特殊的时间状语引导词 ①表示时间的名词:the moment/ minute/ day/ instant; by the time(过去、将来完成时) each/every/next time; the first/…/last time; Eg I’ll phone you the moment I arrive. Every time I see him, he’s working hard. Be sure to call me next time you come. I felt excited the first time I saw a UFO. →comp By the time we graduate from Senior High, we will have been here for 3 years. By the time I came, he had died. ②表示时间的副词引导的状语 immediately；directly（一…就）；instantly Eg I left immediately the bell rang. Directly you feel any pains, you must go to the doctor. Please give me a phone call i