[讨论]OG11th-5,OG11th-54关于定语从句

5. As tis sales of computer products have surpassed those of measuring instruments, the company has become increasingly willing to compete for the mass market sales they would in the past have conceded to rivals.
(A) they would in the past have conceded to rivals
(B) they would have conceded previously to their rivals
(C) that in the past would have been conceded previously to rivals
(D) it previously would have conceded to rivals in the past         
(E) it would in the past have conceded to rivals

选E

54. When Congress reconvenes, some newly elected members from rural states will try and establish tighter restrictions for the amount of grain farmers are to be allowed to grow and to encourage more aggressive sales of United States farm products overseas.
(A) and establish tighter restrictions for the amount of grain farmers are to be allowed to grow and to encourage
(B) and establish tighter restrictions on the amount of grain able to be grown by farmers and encouraging
(C) establishing tighter restrictions for the amount of grain farmers are allowed to grow and to encourage
(D) to establish tighter restrictions on the amount of grain capable of being grown by farmers and encouraging                                                          
(E) to establish tighter restrictions on the amount of grain farmers will be allowed to grow and to encourage

选E

想请问这两道题画黄色的部分在句中都是什么成分呀？都是定语从句吗？是不是都省略了that?如果是的话那这种省略有什么原则吗？尤其是54题的这个读起来觉着很别扭啊！

自己定下先

 As tis sales of computer products have surpassed those of measuring instruments, the company has become increasingly willing to compete for the mass market sales（宾语）
        they would in the past have conceded to rivals.

在限制性定语从句中可省略作宾语的关系代词whom，which，that

可以这样来写the mass market sales （which/that） the company would have conceded to rivals in the past。

因为是company 把市场让给了竞争对手，市场本身自己不会把自己让给竞争对手，

concede的用法是：concede sth to sb主语是company

用定于从句修饰mass market sales 这个宾语成分，则whom，which，that可以省略

接下来，由于主语the company 的重复，由于是单数概念，用的it

从而得到E

When Congress reconvenes, some newly elected members from rural states will try and establish tighter restrictions for the amount of grain farmers are to be allowed to grow and to encourage more aggressive sales of United States farm products overseas.

感觉句子没有谓语动词，楼主是不是划线多划了？“will try”是不是不该划线啊？

首先是try to do 排除ABC

D的capable of being done一般不这么用，而且，显的奇怪，并且自己擅自多加词，且and后面是ing，不平行，排除

得E

感觉E也是和上面那道差不多，在修饰不得时候省掉了which

自己得体会 sb do sth/sb （which/that）+从句应该是可以得

比如：

John plays PS2 （which/that）Sony thought is better than XBOX mannufacted by MS very well

非限制性定语从句，which/that就不好省了

否则就变成，插入语/同位语/或者悬垂结构了（前提是主谓完整），但可能会改变句子得意思，或者逻辑意思不通

如果主谓不完整，就有问题了，句子不是句子，插入不是插入了，所以非限制性定语从句关系代词不能省

十分抱歉发完帖子后就给忘了，今天才想起来……

太感谢gonghao的解答了！我基本明白了。

就是说在限制性定语从句中，若中心词是从句的宾语时，that是可以省略的。

但是还想请问gonghao，非限制性定语从句中就不可以这样做了是吗？还是说非限制定语从句省略了which后就变成了插入语、同位语或者悬垂结构，在语法上也是正确的只是变了结构？还有着个悬垂结构是指什么呀？请指点；-）

再次感谢！

非限制性定语从句中就不可以这样做了是吗？

---是，不可以，因为有逗号

还是说非限制定语从句省略了which后就变成了插入语、同位语或者悬垂结构，在语法上也是正确的只是变了结构？

--在语法上不正确，因为就不是定语从句了，就变成了同位结构

还有着个悬垂结构是指什么呀？请指点；-）

悬垂就是传说中的独立主格

明白了！多谢gonghao!