require的用法，纠结了半天不知道怎么选出来的。

doitkevin

because of the enormous research and development expenditures required to survive in the electronics industry, an industry marked by rapid innovation and volatile demand, such firms tend to be very large.
a, to survive
b, of firms to survive
c, for surviving
d, for survival
e, for firms' survival


一道白勇语法里的题目。
答案是B, require of sb. that是固定用法阿，答案是require of sb. to do 作何解释？
期待牛牛们解答。

doitkevin

还是想不出来啊，纠结呀么纠结。。

毛毛carina

这道是og题，容我花点时间找找电子档复制解释过来

简单的说就是 未划线部分such firms 需要一个先行词，A,C,D都没有such firms可以指代的对象

E选项是个所有格形式，也不能指代~~

这是个og10的旧题，现在一般来讲require sb to do是错误的
··

毛毛carina

OG10的解释

The subject of the main clause (such firms) presumes a prior reference to the firms in question. Furthermore,
the logical subject of to survive and the logical complement of required should be made explicit. All three
demands are met by B, the best choice. Choices A, C, and D, with no reference to the firms in question, meet
none of these demands. In choice E, the illogical and awkward use of a prepositional phrase (for firms' survival)
buries the needed initial reference to firms in a possessive modifier.

doitkevin

这道是og题，容我花点时间找找电子档复制解释过来

简单的说就是 未划线部分such firms 需要一个先行词，A,C,D都没有such firms可以指代的对象

E选项是个所有格形式，也不能指代~~

这是个og10的旧题，现在一般来讲require sb to do是错误的
··

-- by 会员 毛毛carina (2011/2/14 11:45:38)

十分感谢，你是说require of sb to do这种用法现在错误的是么？

aeoluseros

require    五个搭配    sth. is required of sb. to do sth.    
        sth. requre of sb. that + 虚拟    
        sth. require that +虚拟    
        sth. require doing sth.    require sb. doing sth.错误
        sth. requre sb. to do sth.    requre sb. to be done错误

毛毛carina

~~~aeo补充很完整~~sth. is required of sb. to do sth.是对的
                                   sb required of sb to do sth 是错的