Necessary+for还是to?

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Necessary+for还是to?
Necessary+for还是to?

Necessary+for还是to?
Necessary for sb.to do sth.

it's necessary for sb to do sth

Necessary接for和 to 都可以的 都属于通常用法
例
Oxygen is necessary for life.
氧气是生命所必需的。
It is necessary that he be sent there at once.
有必要马上派他到那里去。
Sleep is necessary to/for one's health.
睡眠对健康是必不可少的。

一般情况下是+ to,若是表示“对某人有必要的、是必须的”之意，即necessary后面直接跟人称代词，就+ for。
看一些例句就知道了：
1）Sleep is necessary to health.
睡眠对健康是必要的。
2）Sometimes it is not necessary to go inside in order to buy the hambu...

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一般情况下是+ to,若是表示“对某人有必要的、是必须的”之意，即necessary后面直接跟人称代词，就+ for。
看一些例句就知道了：
1）Sleep is necessary to health.
睡眠对健康是必要的。
2）Sometimes it is not necessary to go inside in order to buy the hamburgers.
有时候要买汉堡包不需要进入这些餐馆。
3）It is necessary for older people to understand what they think and feel.
年长的人有必要了解年青人在想些什么,他们有什么感觉。

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习惯用语
be necessary for
必须; 有...的必要
It's necessary for us to study hard .
我们必须努力学习。

必要的,必需的[(+for/to)]
Oxygen is necessary for life.
氧气是生命所必需的。
It is necessary that he be sent there at once.
有必要马上派他到那里去。

It's necessary for sb to do sth

it's necessary for sb to do sth

Necessary接for和 to 都可以的 但是看怎么搭配用。都属于通常用法
一般情况下是+ to,Sleep is necessary to health.
若是表示“对某人有必要的、是必须的”之意，即necessary后面直接跟人称代词，就+ for。
it's necessary for sb to do sth

it is necesary to do sth
it is necessry for sb to do sth

Necessary+for还是to? lts necessary to还是 for lts necessary to还是for necessary 后面是跟to 还是for? 是it's necessary for us to sleep for 8 hours 还是is' necessary for us to sleep 8 hours? be necessary for和 be necessary to的区别老师说be important to后面加人,如果还有下文用be important for sb doing sth那be necessary to 和be necessary是不是也是这种用法?还是说be necessary to do sth be necessary for doing st be necessary for和be necessary to 有何区别 it is necessary for you to work It is necessary for sb to Do you think it necessary for me to give him a letter 这句话为什么不用is不应该是it is necessary .还是有什么额外的规则? 英语necessary的问题It is necessary for us to learn.可不可以改成We are necessary to learn ______,is it necessary for us to form the habit of reading every day.用such还是therefore? ______,is it necessary for us to form the habit of reading every day.用so还是therefore?为什么? 【英语】 It is necessary for sb.to do sth.将其改成否定句时,其间的“不”是no还是not?如：It is no necessary for sb.to do sth 还是It is not necessary for sb.to do sth. It is necessary for sb.to do sth.将其改成否定句时,其间的“不”是no还是not?如：It is no necessary for sb.to do sth 还是It is not necessary for sb.to do sth. It is necessary for sb.to do sth.将其改成否定句时,其间的“不”是no还是not?如：It is no necessary for sb.to do sth 还是It is not necessary for sb.to do sth. it's necessary for you to give up smoking(保持句子原意) it's necessary ____you____smoke li is necessary for us to learn English well now.