※ 引述《ev3393 (Mark)》之铭言： : 请教大大 我们都知道两个独立子句中需连接词， 这个原则完全正确，没有问题。 : 但为什麽有些阅读测验段落只用逗号连 : 结(如下面两段皆用逗号)？ 因为您举的两个例子中都没有两个以上的独立子句，所以并没有连接独立子句的连接词。 但是例一中有连接复合动词的连接词。 : 如果英文作文这样写是对的吗? : 目前找不到相关解说，能否提供相关资讯，谢谢! : 段落一 : Around 1606, he had studied dispersion in prisms, measured the refractive indi : ces of different liquids placed in a hollow glass prism, studied refraction in : crystal spheres, and correctly understood refraction in the rainbow before De : scartes. 上述句子解析如下： Around 1606, he [S] had studied [V1] dispersion in prisms, measured [V2] the refractive indices of different liquids placed in a hollow glass prism, studied [V3] refraction in crystal spheres, and [conj] correctly understood [V4] refraction in the rainbow before Descartes. 主词 he 後面跟着由四组动词片语 (verb phrase) 构成的 compound verb 复合动词结构 ： S Vp1, Vp2, Vp3, and Vp4. 所以这句里是有用来连接动词片语的 and，但是由於主词只有出现一次，所以并没有两个 独立子句，因此不需要用来连接独立子句的连接词。 : 段落二 : Perhaps the most interesting thing is that the first discovery of the sine law : , made by the sixteenth-century English scientist Thomas Harriot (1560-1621), : has been almost completely overlooked by physicists, despite much published ma : terial describing his contribution. 上述句子解析如下： Perhaps the most interesting thing [S1] is [V1] that the first discovery of the sine law [S2], made by the sixteenth-century English scientist Thomas Harriot (1560-1621), has been almost completely overlooked [V2] by physicists, despite much published material describing his contribution. 独立子句：S1 + V1 + that 子句 (这个 that 子句是从属的名词子句当作补语用) 从属子句：that S2 + V2 made by ... 1621) 是过去分词片语用作修饰语，说明 the first discovery of the sine law despite ... contribution 是介系词片语，用以表让步内容 所以，本句只有一个独立子句配上一个从属子句，因此也没有两个独立子句，所以也不需 要用来连接独立子句的连接词。 以上 --

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