当when表示“就在这时”时（有待总结）
当when表示“就在这时”时 英语中，连词when表示"当……时候"，引导的时间状语从句表示与主句动作同时或不同时，从句动词用延续或非延续性都可以。如： I'll telephone you when I get there tomorrow.明天我到那里的时候就给你打电话。 但是在高一新教材Unit 15 "The necklace"中，就出现了when用作并列连词，表示"就在这时"(=and this time/just at that time)的用法。如： Tom was sitting near the fire when he heard a knock at the door.汤姆正坐在火炉边，这时他听到一阵敲门声。 I was just going to speak when the doorbell rang.我正准备讲话，这时门铃响了。 当并列连词when用于"就在这时，正在这时"的用法时，它所引导的并列句表示动作发生后，另一个并列句所表示的动作之后，一般不可以用其他词代替，常用于以下结构： 1.was/were doing +when意思为"就在这时，正在这时"。如： I was walking in the street when someone called me from behind.我正在街上走，就在这时有人从后面叫我。 They were discussing the problem when the teacher came in.他们正在讨论问题，就在这时老师进来了。 2.was/were about to do...when意思为"正要/正准备做某事，就在这时……"。如： She was about to go out when an unexpected visitor came.她正准备出去，这时来了一位不速之客。 We were about to set out when it began to rain.我们正要动身，就在这时开始下雨了。 3.be+表示状态的介词短语+when意思为"正在做某事，就在这时……"。如： They were at work in the office that afternoon when a big fire broke out.那天下午他们正在办公室工作，就在这时一场大火发生了。 We were on duty in the classroom when a boy rushed in.我们正在教室里值日，就在这时一名男孩冲了进来。 Li Ping was on his way home when two boys stopped him.李平正往家走，突然两个男孩拦住了他。 注意：在上述三种用法的结构中，when引导的句子不能放在句首。<font face="宋体">3、...<b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when....就在<b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">这时① One day Chuck is on a flight across the PacificOcean <b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when suddenly his plane crashes.一天查科正在太平洋上空飞行，就在<b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">这时他的飞机突然坠毁。<b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when 作“就在<b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">这时，恰恰在<b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">这时”解时，不可以用其它词代替。多用在下列句型中：A.be+表示状态的介词短语＋<b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when...在做某事，就在<b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">这时...① We were at work that aftenoon <b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when suddenly a fire broke out.B.be doing sth.+<b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when ....正在做某事，就在<b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">这时.....① We were having a meeting <b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when someone broke in angrily.C.be about to do sth .<b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when....正要做某事，就在<b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">这时...①I was about to go out <b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when someone knocked at the door.D.had (not) done …<b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when刚…就…eg.We had just begun to work <b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when the machinebroke down.</font>4、She <span class="uline">was combing</span> her hair <span class="uline"><b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when suddenly</span> the bed room door opened behind her.<blockquote> 这里<b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when译为“<b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">这时”，而不是“当……时候”。注意：<b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">when作“<b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">这时”讲时可用于以下四种句型中：</blockquote> <img height="84" src="http://www.huanggao.net/hgweb/samples/demoCourse/YY_23_02_005/images/YY_TP_003.gif" width="341" alt=""/>
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