require的用法

v. 要求；需要；命令；规定

形容词: requirable 名词: requirer 过去式: required 过去分词: required 现在分词: requiring 第三人称单数: requires

主要是两种用法

require 有两种用法：

*require (doing) sth. 表示主语“该...了”。

如：

The floor requires washing.

地板该洗了。

*be required to do sth.表示主语必须（被要求）...如：Students are required to attend classes.

学生必须按规定上课

All passengers are required to show their tickets.

所有乘客都必须出示车票。

用作动词(v.)

1、The director required that we should work all night.

主任要求我们通宵工作。

2、We must not propagate one method and require all

localities to adopt it.

我们在宣传上不要只讲一种办法，要求各地都照着去做。

3、Please call if you require assistance.

如果需要帮忙，请打电话。

4、This game requires a minimum of three players.

这个游戏至少需要三个人才可以玩。

5、The headmaster required her to keep silent.

校长命令她不要做声。

6、Napoleon required every soldier to obey his orders.

拿破仑要求每个士兵都服从他的命令.

7、Students are required to attend classes.

学生必须按规定上课

8、As required by the traceablitiy, the duplicate copy of purchase documents shall be kept.

根据可追溯性的专用要求的范围规定,应保存有关采购文件的副本。