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【句法分析】 本句用到了状语从句的省略,也就是主从句的主语一致,且从句里含有be动词的某种形式的时候,我们可以把从句里的主语和be动词省略,能这样用的连词有when,while,if,once,though,unless,as if,even if等. ① If (I am) given another chance,I will do it much better. 如果再给我一次机会,我会把它做得更好. ②When (the museum is) completed,the museum will be open to the public next year. 博物馆一竣工,就会在来年对公众开放. 跟踪训练 Ⅰ.完成句子 1．在被带去看了实验室之后,我们又被带去参观校图书馆. ________________________around the lab,we were taken to see the school library. Having been shown 2．因为没有努力学习功课,他考试不及格. ______________________ his lessons very hard,he failed the examinations. Not having studied 3．许多人喜欢从事不同的运动,然而有些人只是喜欢观看它们. Many people enjoy playing different sports ____________________________ watching them. while others just enjoy 4．尽管我很同情,但我实在帮不了什么忙. ________________________,I can not really do very much to help. While I sympathize Ⅱ.单项填空 1．(2017·泉州月考)The World Expo Shanghai 2010 is more like a platform for cultural exchange,________ people into closer contact with the rest of the world. A．to bring B．bringing C．brought D．having brought 解析：选B.现在分词短语作结果状语,由于bring和句中的谓语动词表示的动作同时发生,故选B项. | 
