并列连词引导两个并列的句子。 1) and 与or 判断改错: (错) They sat down and talk about something. (错) They started to dance and sang. (错) I saw two men sitting behind and whisp...
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此两个连词意义相同。肯定形式表示的意思是"做某事直至某时",动词必须是延续性的。否定形式表达的意思是"直至某时才做某事"。动词为延续性或非延...
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though, although 注意: 当有though, although时,后面的从句不能有but,但是 though 和yet可连用 Although it's raining, they are still working in the field. 虽然在下雨,但他们...
连接词主要有 if, unless, as/so long as, on condition that 等。. if 引导的条件句有真实条件句和非真实条件句两种。非真实条件句已在虚拟语气中阐述。 unless = i...
结果状语从句常由so… that 或 such…that引导,掌握这两个句型,首先要了解so 和 such与其后的词的搭配规律。 比较:so和 such 其规律由so与such的不同词性决...
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比较:because, since, as和for 1) because语势最强,用来说明人所不知的原因,回答why提出的问题。当原因是显而易见的或已为人们所知,就用as或 since。 I di...