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while = and 同时(并例连词)

来源:www.yahucang.com 2025-03-12

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问:此横线处应填preparing ,说是状语从句的省略,那我要问while作为并列连词,连接she发出的3个动作中最后一个动作也应用单三,为何就不能而非要看成引导一个从句呢?

当while表示对比意义时,有人把while剖析为并列连词。比如下句:

He likes football, while his brother likes basketball.

但把while分词为并列连词只不过部分学者的看法,夸克就觉得while仍然是从属连词,引导对比状语从句(adverbial clause of contrast)。

即便剖析为并列连词,也并非所有些并列连词都可以连接二个谓语动词,比如 for后接从句表示缘由时,一般被觉得是并列连词,但for不能连接二个谓语动词。所以你不可以由于有人觉得while是并列连词,就误以为while可以像and一样连接二个谓语动词。这是你的误解。

作为从属连词,while只有在引导时间状语从句时,才能省略相同的主语和be。假如while引导对比状语从句或让步状语从句,while从句是不可以省略主语和be的。

现代语法觉得,目前分词分句作状语时可以带有连词,假如目前分词分句作时间状语,就能在目前分词前加while,即现代语法不觉得while doing是状语从句的省略。

你的句子中之所以要用doing形式而不可以用谓语动词形式,是由于while为从属标记词,要么后接主谓结构构成while时间状语从句,要么后接目前分词,根据传统语法理解就是while从句省略了主语和be。即便把while理解为并列连词,while也是不可以并列谓语动词的。


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