在英语中，情态动词表示说话者对某个动作或状态的看法、想法或主观设想。其中 “must” 和 “have to” 都表示 “必须” 做某事，一个表示 “主观义务”，一个强调 “客观要求”。看视频，学习 “must” 和 “have to” 之间的主要区别。 }u5 Mexs
文字稿 h%E25in
Hi, this is Kee from BBC Learning English. Today, I'm going to tell you the differences between must and have to. ' f}^/`J
Both must and have to talk about obligations. However! VS%8f.7ep
Now, we use have to when we talk about obligations others decide for us. It's a law or a rule, so it cannot be changed. For example: At BBC, we have to show our passes to enter the building. This is a rule decided by the BBC. h7~&r Wb
On the other hand, we use must when we talk about obligations we decide for ourselves or others. For example, my boss might say to me: You must be more organised. Or, I might say to myself: I must exercise more often. l9qq;hhGP,
用法总结 dG Qy=T:
Must and have to q~;P^i<Y
Both must and have to talk about obligations. Both are followed by an infinitive without 'to'. W a2V Z
两者都用来描述 “义务”，而且两者后面都直接跟动词原形，即 “must do something” 和 “have to do something”。 $kZ,uvKN
（1）Have to wAVO%8u
Have to' is used for obligations that others decide for us. These are often laws or rules and so cannot be changed. :kOLiko!4>
“Have to” 用来谈论 “客观要求”。这些通常是法律或规定，因此不能改变。 oMkB!s
We have to show our passes to enter the building. ?Xlmt$Jp
You have to smoke outside. Smoking is not allowed inside. [
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She has to have a license before she drives. :>Z0Kb}7
（2）Must qV/"30, K
We use must to talk about obligations we decide for ourselves or others. *xkbKkm
我们用 “must” 来谈论“主观义务”，指对自己或他人的要求。 {S~2m2up0L
You must be more organised. [77]0V7
I must exercise more often. =uKK{\+|Y
We must clean the house today. 0 -=onX
