大全32 if x do，y will do

yashudong

32.    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
答案没有问题，选E。有问题的是E中是 if x do sth， y do sth ，为什么不是y will do sth，答案中解释的是 exercise 和 gain 都用的是一般现在时。但原句中的gain 前的will 不可以看做是省略了吗？貌似有点映象是助动词在什么什么情况下都不能省，是这里的情况吗？

lolmandy

哈哈 美剧里不是老有“（if）you move, you die" 大概一个类型

yashudong

有道理！现在的疑问是，是不是那些实验啊，研究啊如果是用showed（一般过去时）来陈述一个事实后面的事实最多只能用一般现在时？ 后面的那个条件状语从句个人认为在正常情况下应该是用if  x do ，y will do 的情况，只是这里放在showed 的后面了，就用一般现在时了？

snail007

32.    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
答案没有问题，选E。有问题的是E中是 if x do sth， y do sth ，为什么不是y will do sth，
这里是意思要求，if  calves do....they ...., they 还指代前面从句的主语

答案中解释的是 exercise 和 gain 都用的是一般现在时。但原句中的gain 前的will 不可以看做是省略了吗？貌似有点映象是助动词在什么什么情况下都不能省，是这里的情况吗？

-- by 会员 yashudong (2009/12/27 16:36:32)

我觉得这里不是省略will，而是改变了后面这句的时态，原来是一般将来时改成了一般现在时，表示一个事实或观点。如果用将来时也要用would do吧，因为主句，study..showed that.
但是这里从表达逻辑意思来讲还是用一般现在时说的通

w3d001

帮顶一个， 答案没有问题，不能省的情况是我总结的是 同样内容功能不同平行里不能省 ，但是这里不知道2个wii都省是什么情况。。。

yashudong

我搜了帖子没有类似的问题啊，没有同学帮帮忙吗？