标题: 这里为什么省略了动词？ [打印本页] 作者: lemonee 时间: 2003-8-25 07:51 标题: 这里为什么省略了动词？ . A study commissioned by the Department of Agriculture showed that if calves exercise and associated with other calves, they will require less medication and gain weight quicker than do those raised in confinement. (C) associate with other calves, they required less medication and will gain weight quicker than do (D) associate with other calves, they have required less medication and will gain weight more quickly than do (E) associate with other calves, they require less medication and gain weight more quickly than E选项为什么没有DO。这里动词是可以省略的吗？如果加 DO算错吗？ 谢谢了！作者: lemonee 时间: 2003-8-25 12:10
高手出招呀！高手出招呀！作者: merlion 时间: 2003-8-25 13:19
我也不是很明白。 不过后来发现不会出现than后有动词和无动词需二选一的情况， 都可以吧。"required" (c) and "have required" (d) use wrong tense ba
还是等高手解释吧作者: lilyhuang 时间: 2003-8-26 14:54
I'm not supergirl, just for your information. The comparison objects appear behind the verbs(require less medication, gain weight more quickly). You can incorporate the kind of comparison as one category, such as OG149. In the comparison, you needn't add "do". 作者: anchoret 时间: 2003-8-26 15:32
助动词尽量补出，不是必须补出。e 应该补do,c、d分别应该补did和have作者: lemonee 时间: 2003-8-27 02:28
谢谢了！
