英文原文：

Hi guys, this is Kee from BBC Learning English. Today I'm going to tell you the differences between 'must' and 'have to'.

Both 'must' and 'have to' talk about obligations…h(huán)owever!

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.

On the other hand, we use 'must' to 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.

中文翻譯：

大家好，我是來(lái)自BBC Learning English的Kee。今天我將告訴您“must”和“have to”的區(qū)別。

“Must”和“have to”都是關(guān)于義務(wù)的…然而！

現(xiàn)在，我們使用“have to”來(lái)談?wù)搫e人為我們決定的義務(wù)。這是一項(xiàng)法律或規(guī)定，因此不能改變。例如，在BBC，我們必須展示我們的通行證才能進(jìn)入建筑物。這是BBC制定的規(guī)定。

另一方面，我們使用“must”來(lái)談?wù)撐覀優(yōu)樽约夯蛩藳Q定的義務(wù)。例如，我的老板可能對(duì)我說(shuō)“你必須更有組織性”，或者我可能對(duì)自己說(shuō)“我必須更經(jīng)常鍛煉”。

測(cè)驗(yàn)：

1. I _________ clean up the room. My mum told me to do it.

A?have to

B?must

2. I need to go to bed early. I _________ stop playing video games late at night.

A?have to

B?must

3. At work, we __________ finish by 4pm.

A?have to

B?must

4. I _________ do some revision. I can't fail the exam again.

A?have to

B?must

答案：

1A

2B

3A

4B