In experiments,an injection of cytoplasm from dextral eggs changes the pattern of sinistral eggs,but an injection from sinistral eggs does not influence dextral eggs. " n# Y f* ^5 T 在实验中,用取自右旋卵子的细胞质进行的注射,可改变左旋卵子的模式;用取自左旋卵子的细胞质进行的注射却不能影响到右旋卵子。 1 k0 ^" h0 I3 |0 }/ }# R) _3 c 难句类型:省略、易淆词; ~: p* T" B/ l3 u, t8 C. ^; i' M0 b
解释:本句与上一句来自于同一篇文章,蜗牛的右旋与左旋,在阅读这篇文章的过程当中,所有同学都在竭尽全力地分清左、右的区别,然而这里的时候,ETS的出题者终于突破了读者的心理防线,彻底地搞混了左右之间的关系。 ~. L6 u+ o" X1 X
其实在这里之所以容易搞混,还有一个人为的重要原因,就是这句话使用了大量的省略;方中的changes the pattern of sinisteral eggs后面,实际上省略了一个to dextral,而最后的分句an injection from sinisteral eggs does not influencee dextral eggs,则是an injection of cytoplasm from sinisteral eggs does not influencee the pattern of dextral eggs的省略形式。* ?( W( Y" Z5 K8 B/ ]9 i
意群训练:In experiments,an injection of cytoplasm from dextral eggs changes the pattern of sinistral eggs,but an injection from sinistral eggs does not influence dextral eggs.) |! K; P! Z" n8 f1 R. q; O
转自:外语招生网