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You needn’t have been staying up so late.你无需待到这么晚还不睡的。
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被动形式:
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Reference books may not be taken out of the room.参考书不可携出室外。
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Adverbs mustn’t be put between the verb and the object.副词不能放在动词和宾语之间。
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Can all this be finished in one day?这一切一天能干完吗?
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This factor ought to be taken into consideration.这个因素应当考虑进去。
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关于各个情态动词的用法可参阅有关各节。
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613 moment—momentary—momentous—momentarily
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moment表示“一会儿”、“时刻”:
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Do be quiet a moment.请你安静一会儿。
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Just a moment, she’s coming.稍等一会儿,她就来了。
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I’m busy at the moment.我此刻正忙。
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He caught the train at the last moment.最后一刻他赶上了火车。
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the moment可引起一个状语从句:
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The moment he spoke we recognized his voice.他一说话,我们就认出了他的声音。
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He felt a thrill the moment he got into the theatre.他一进剧场就感到非常兴奋。
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由moment可派生出两个形容词,一是momentary,一是momentous。
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momentary表示“一时的”、“暂时的”:
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His feeling of fear was only momentary; it soon passed.他的恐惧情绪是一时的,很快就过去了。
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There was a momentary lull in the storm.暴雨暂时停了一下。
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momentous表示“(极为)重要的”:
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Jack took a momentous decision—to run away from home.杰克做出一个重要决定——离家出走。
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We listened on the radio to the momentous news that war had begun.我们从收音机上听到极为重要的消息——战争爆发了。
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momentarily表示“临时地”、“一时地”:
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