关于虚拟和条件句的时态

心静 · 发表于 2003-8-2 14:56:00

这两种时态总把握不好，能不能帮我讲解一下，如果有类似的语法点总结，能否贴一下。不胜感激。

下面是我遇到的一个问题：
37. While some academicians believe that business ethics should be integrated into every business course, others say that students will take ethics seriously only if it would be taught as a separately required course.(A)only if it would be taught as a separately required course
(B)only if it is taught as a separate, required course
(C)if it is taught only as a course required separately
(D)if it was taught only as a separate and required course
(E)if it would only be taught as a required course, separately
答案选B，解释“A will happen if B happens”

46. 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.
(A)associated with other calves, they will require less medication and gain weight quicker than do
(B)associated with other calves, they require less medication and gain weight quicker than
(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
选E，为什么这里不用will require? "A will happen if B happens”这个原则就不适用于这里？

[此贴子已经被作者于2003-8-2 14:57:22编辑过]

joywzy · 发表于 2003-8-2 15:04:00

MM,

X will ... if Y does

X does .. if Y does

is both ok.

在判断时态时，要根据句意和未划线句子及时间状语从句来判断，SEQUENCE。是同时进步的，就要跟未划线的一致。如果有先后的，就要考虑完成时。

rachelywq · 发表于 2003-8-2 22:42:00

我记得LZM的书里有总结的啊？？？

心静 · 发表于 2003-8-3 10:39:00

哦，我没有用那本书，不过可以查到，谢谢。

本贴相关题目 OG-2015V-SC-38 (KKNS)

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