require使用mysql_require的用法

被动语态是由助动词“be”+过去分词构成的.这里的“be”既要表示出与主语的人称和数一致,也要表示出时、体的形式.被动语态有几种特殊用法.每个人的情况不同，也可以登录文都国际教育官网进行一对一的咨询。

(1)主动形式表示被动意义

1)常见的这类动词有：“act,add

up,clean,compare,count,cook,draw,fill,iron,keep,let,look,make

up,milk,kill,open,photograph,prove,read,sell,smoke,spoil”等.

The window won’t open.(这扇窗户打不开.)

The cow milks well.(这头牛出奶率很高.)

Damp wood will not fire.(湿木不易燃烧.)

She doesn’t photograph well.(她不上相.)

His judgment proved wrong.(他的判断是错的.)

It turned out fine that day.(结果那天天气很好.)

How did his coat catch on a nail? (他的衣服怎么钩到钉子上了?)

2)实用动词“need/want/deserve/require +V-ing(动名词)”形式表示被动意义.

My hair needs cutting..

The bike wants repairing.

There is nothing to worry about.

②不定式修饰want, have等动词的宾语,而句中的主语同时又不是不定式的逻辑主语时：

I want some clothes to wash.

Do you have anything to say for yourself?

③不定式修饰buy,get,give等动词的直接宾语,而句中的间接宾语又是不定式的逻辑主语时：

His sister gave him a bike to ride.

It is believed/thought that this medicine works well.

It is required(of)him that he give the evidence.(要求我提供证据)

It is feared that he could not come here.

It is estimated that a flight to Shanghai would take more than one hour.

It is often realized that women held a high social position in the Southern European societies in the 10th and llth centuries.

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