2019-2020学年外研版高中英语选修6课件：时间状语从句-302edu教育资源网

2019-2020学年外研版高中英语选修6课件：时间状语从句

1．从句动作在主句动作前发生，只用 when。 ①When he had finished his homework，he took a short rest．（finished先发生）当他完成作业后，他休息了一会儿。 ②When I got to the airport，the guests had left．（got to后发生）当我赶到飞机场时，客人们已经离开了。

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