require of sb to do

require of sb to do 是要求sb去做什么吗？

1. 朗文里没有require of 的搭配，跟require搭配的介词只列出了by和for

2. 搜索了一下og 没有这种用法。

我记得是有这个用法的，OG中考过。是要求“某人去做某事”的意思

require  有三种常用的固定用法：

1. require + that clause + 虚拟省should

2. require sb. to do sth.

3. require sth of sb. that + 虚拟语气省略should + do/be   解释为： 对某人有某物的要求
   这种用法有两个变体：
   3-1  sth. be required sb. to do
   3-2  reuqire of sb. that  (sth 的部分由于过长，比如是个that从句，则句子倒装)

OG 181
Because of the enormous research and development expenditures required to survive in the electronics industry, an industry marked by 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

The answer is B

109. Legislation in the Canadian province of Ontario requires of both public and private employers that pay be the same for jobs historically held by women as for jobs requiring comparable skill that are usually held by men.

(A) that pay be the same for jobs historically held by women as for jobs requiring comparable skill that are

(B) that pay for jobs historically held by women should be the same as for a job requiring comparable skills

(C) to pay the same in jobs historically held by women as in jobs of comparable skill that are

(D) to pay the same regardless of whether a job was historically held by women or is one demanding comparable skills

(E)  to pay as much for jobs historically held by women as for a job demanding comparable skills

The answer is A   

require of sb. that才是对的，我错了

不好意思

？181b不是require of sb to do 的用法么：require of firms to survive

required修饰前面的n.，和后面的to do没关系

谢谢

但是，有点晕，呵。也就是说181b里面required只是起了一个定语的作用，不算在sunnier说的三种用法里面是吧

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那三种用法是magieus mm总结的哦！

对