need,must 和 have to 的区别

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/30 04:12:11

need,must 和 have to 的区别
need,must and have to的区别

need:需要；必要；需求；有———必要；贫穷；危急
She feels the need of companionship.
她感到需要友谊.
must:[表示义务、命令或必要]必须,应当
Soldiers must obey orders.
军人必须服从命令.
【说明】过去、未来、完成等式可用 have to 的相应形式来代替,例如:I must [have to] do it today.我必须今天做.
[表示推断或指具有较大的可能性]很可能; 谅必[否定用cannot be,could not have +p.p]
You must be very tired.
你一定很累了.
He must have earned a large sum of money.
他一定是挣了一笔巨款.
[表示主张]一定要,务必
If it is really lost,it must be found.
如果真丢了,一定要找回来.
[表示不可避免性或肯定性]必然要,必定会
Man must die.
人必有一死.
[表示与说话人愿望相反及不耐烦]偏要
Why must it rain on Sunday?
偏要在星期天下雨,讨厌!
Just as I was sitting down to supper,the telephone mustring.
正当我坐下来用晚餐时,偏偏电话铃响了.
[方][表示请求]
Must I go now?
我现在可以走了吗?
n.
[口]必须做的事,必需的东西
The new film is an absolute must.
这部新片不可不看.
adj.
[口]绝对需要的,不可缺的
must legislation
不可缺少的立法
This is a must book for your reading.
这是一本你必须要读的书.
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have to
[have got to] 不得不,只好
I have to go.
我必须离开.

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