:必修5 Unit 2(2)
It looked splendid when first built!
刚建成时,它(圣保罗大教堂)看起来真是金碧辉煌!
当从句的主语与主句的主语一致或主语为it,且谓语部分含有动词be时,这时可把从句的主语(或it)连同谓语动词be省略掉,省略后的部分为“when+分词/介词短语/形容词/名词短语等”。
①(2010·全国卷Ⅱ)Though_surprised to see us,the professor gave us a warm welcome.
教授看到我们虽然很惊讶,但是还是热情地欢迎了我们。
②Look out for cars when_(you_are)_crossing the road.
在过马路时要注意车辆。
③When (you are) in trouble,ask him for help.
遇到困难时可向他求助。Worried about the time available,Zhang Pingyu had made a list of the sites she wanted to see in London.由于担心时间不够,张萍玉早就把她想在伦敦参观的地点列了一张单子。
(1)worried about...为过去分词短语作状语,表原因。
Lost_in_thought,he almost ran into the car in front of him.
陷入沉思,他几乎撞上了前面的小汽车。
Addicted to the computer games,Jack fell behind the others.
迷恋于电脑游戏,杰克的学习落后于其他同学。
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