【简明语法】9.3 连词+分词(短语)

　　有时为使分词短语与主句关系更清楚，可在分词前加连词。 连词有： when，while¹，if though，after, before, as².　但分词的主语和主句的主语必须为同一个，如：
　　While waiting there, he saw³ two pretty girls come out of the building.
　　waiting 和saw 的主语相同。

1 while   

conj.当…的时候；而；虽然；尽管 n.一会儿

参考例句：

• In a short while,the cat ate up the fish.不久，那只猫便将鱼吃个精光。
• He teaches English in the school all the while.他一直在这所学校里教英语。

2 as   

conj.按照；如同

参考例句：

• He got work in a hotel as a waiter.他在一家旅馆找到了当服务生的工作。
• In the hotel,the old men were drinking away as usual.在旅馆里，这些老人和往常一样喝个不停。

3 saw   

vbl.看见(see的过去式)；n.锯；v.用锯子锯

参考例句：

• Would you like to saw a tree for me?你能为我锯棵树吗？
• The moment I saw you,I knew you were angry with me.我一看到你，就知道你在生我的气。