在某些状语从句中,当其主语跟主句的主语一致,而且含有be动词时,可以把主语(一般是代词充当)以及be动词一起省略。旨在使句子更加简洁和生动。
这个规则必须满足3个条件:(1)限于某些状语从句(2)主、从句的主语必须一致(3)有be动词,这个be动词可以是系动词,可以是进行时态的be,也可以是被动语态的be。
例如:
Mary often helped her classmates when (she was) free. (was是系动词)
While (you were) walking the dog, you were careless. (were是进行时的助动词)
John won't come to your party unless (he is) invited. (is是被动语态的助动词)
关于方式状语从句中,省略“主语 + be”:
1. She talked to the stranger as if (she were) absent-minded. 她和陌生人谈话时似乎心不在焉。
2. He opened the drawer,as if (he was) in search of something important. 他打开抽屉仿佛要找什么重要的东西。
3. She stood at the gate as if (she was) waiting for someone. 她站在门口好像在等人。
4. The teacher shouted at the boy as if (he was) angry. 老师朝孩子大喊大叫好似很生气。
5. He paused as if (he was going) to let the sad memory pass.
我编了一个关于状语从句省略的记忆口诀,帮你记忆:
【省略口诀】
主从主语一致时,
从句含有be动词;
为了简练皆省去,
剩下表语和分词。
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