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2019-2020年高中英语每日一题第8周bedoingwhen含解析新人教版必修 高考频度：难易程度：1. (xx天津)I _down to London when I suddenly found that I was on the wrong road.A. was driving B. have driven C. would drive D. drove【参考答案】A【试题解析】根据固定句型：was/ were doing sth + when (suddenly) did 句意：正在做某事，就在这时（那时）突然，根据句意，故选A。2. Tom was about to close the window _ his attention was caught by a bird.A. whenB. ifC. andD. till【参考答案】A【归纳拓展】 be about to when句式表示正要这时(突然)。when在此为并列连词，意为就在这时(突然)。I was about to say when you interrupted me.我正要说话的时候，你插嘴了。I was about to go out when the telephone rang.我正要出去，电话铃响了。 be doing sth. when正在做某事，就在这时 be going to do sth./on the point of doing sth. when正在做某事，就在这时 had just done sth. when刚刚做完某事，就在这时We were having a meeting when someone broke in. 当时我们正在开会，突然有人闯了进来。She was on the point of watching TV when there was a power failure. 她刚要看电视，这时突然停电了。I had just gone to bed when the telephone rang. 我刚刚上床睡觉，突然电话铃响了。1. I was about to cook my supper _ the telephone rang, but it hung up _ I could answer it.A. while; whenB. when; asC. as; afterD. when; before2. The agent was about to sign his name on the document_, to our surprise, a stranger broke in to prevent him.A. whileB. whenC. asD. until3. I was taking a walk in the park bathing in the sun _ something unusual caught my attention.A. whileB. thatC. whenD. as4. She was about to go out _ the doorbell rang.A. while B. as C. then D. when5. 句型转换She was thinking about the problem and at this time Tom patted her. She was thinking about the problem _ Tom patted her.The pupils were on the point of listening to the tape and when the teacher came in.The pupils _ the tape _ the teacher came in.3. C【解析】考查状语从句。根据句意和分析句子结构可知，这里用be doing sth. when表示正在做某事时突然，因此选C。4. Dbe about to dowhen，意为“正要这时突然”。5. when were on the point of listening/were about to listen to；when贵有恒何必三更眠五更起，最无益只怕一日曝十日寒。_
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