例如:
1) To study English well, we need both diligence and careful.
2) That horse is not only the youngest among the five, but also runs the fastest.
(4)表示因果关系,连接的双方,互为因果,或者前因后果,或者前果后因。常用的连词有:for, so, therefore
例如:
1) It must have rained, for the ground is wet.
2) You are in the right, therefore they should support you.
实战演练
一、例题选讲
例1 he did not know much English,he got out his dictionary and looked up the word.
A.AsB.For
C.SinceD.Because
答案:A
提示:for,because和as虽皆可作连词用,表示“因为,但用法有些区别。for引导的分句总是置于另一分句之后,常常对前一分句加以解释,两个分句之间,总是用逗号分开。because引导的原因状语从句时,往往以why问句,语气比较重,传递的往往是对方未了解的新信息。as引导的原因状语从句时,往往是对方也知道的信息。本句是他拿出词典查,显然,“他知道的英语单词不多,这是明摆着的事,所以用as最恰当。
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