(15)几个常用的并列连词。
①both … and, either … or, neither … nor
both … and“双方都,连接句子的两个主语时,其后谓语动词通常用使用复数形式。either … or与neither … nor注意采取“就近原则。
②not only … but also, as well as
注意:两者强调对象不同,not only … but also强调的是but also之后部分,而as well as则强调其前面的部分。not only… but also采取“就近原则,而as well as只是一个插入语,采取“就远原则。如:
Mr.Smith, as well as his wife and children, has come to Nanjing for a visit.
not only … but also结构中的not only可用于句首,连接两个分句时,第一个从句主谓要倒装。
Not only is he clever ,but also he is hard working.
(16)几个常用的从属连词。
①when、while、as都表示“当……时候,when引导的从句的动作与主句的动词可同时发生,也可先后发生;as、while引导的从句则强调主句和从句的动作同时发生。如:
When I go to the station, the train had already left.
He sang merrily as he was working.
②till、until均表示“到……时候止,肯定句中的谓语必须是延续性动作。如:I worked till late at night.若主句谓语是终止性动词,则主句要用否定形式,意为动作“到……才……开始发生。如:
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