英语四级经典必背500句：听力口语的关键句71

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　　英语四级经典必背500句：听力口语关键句71 　　71 .When will you be through with your work, John? 　　四级词汇讲解: 　　本句中，be through 意为 已结束 。本句相当于When will you finish your work? 　　英语四级考点归纳： 　　与through有关的短语还有:through and through，get through，see through等。through本身的含义包括: 　　穿过;贯穿 。如: 　　You can see the three people through the mist.透过薄雾，你能看见那三个人。 　　自始至终 。如: 　　He will not live through tonight.他活不过今晚了。 　　因为，凭借 。如: 　　It was through you that we were able to meet again.全仗你的帮助，我们才能重聚。