must 表示"必须"，强调主观意愿。
✅ I must finish my homework before dinner. 我必须在晚饭前完成作业。✅ You must see this film — it's amazing! 你一定要看这部电影——太棒了！
must 的三种否定形式
① mustn't 表示禁止，一般用于危险情况：
You mustn't touch that wire! 你不能碰那根电线！
② needn't 表示不必，通常用于否定回答：
— Must I come early? — No, you needn't. 我必须早来吗？不，不必。
③ can't 表示不可能，用于推测：
That can't be true! 那不可能是真的！
must vs have to 辨析
must 无人称和时态变化，强调主观认为必须做；
have to 有人称和时态变化，表示客观上不得不做。
I must study hard.（我觉得我必须努力学习）I have to wear a uniform at school.（学校规定我不得不穿校服）She had to leave early yesterday.（她昨天不得不早走）← must 无法表达过去时
3
💬
Expressions 核心句型
🎬
A
I love action films because they're so exciting!
我喜欢动作片，因为它们太刺激了！
🎵
B
I don't really like thrillers because they scare me.
我不太喜欢惊悚片，因为它们吓到我。
🎻
A
I've been crazy about classical music since I was six.
我从六岁起就痴迷古典音乐。
📸
B
I have a passion for photography as a hobby.
我把摄影当作爱好，对它充满热情。
😤
A
I can't stand opera since it's too slow for me.
我受不了歌剧，因为对我来说太慢了。
🤷
B
I'm not a big fan of disaster films as they're too sad.
我不太喜欢灾难片，因为它们太悲伤了。
😊
A
What about animated films? Do you like them?
动画片呢？你喜欢吗？
🎨
B
Yes! I love animated films because the stories are creative and fun.
喜欢！我爱动画片，因为故事有创意又有趣。
🎉
A
Let's go to the cinema this weekend!
这周末我们去看电影吧！
👍
B
Great idea! We must see the new comedy everyone's talking about.
好主意！我们一定要去看大家都在讨论的那部新喜剧。
4
✏️
Practice 趣味小练习
看图选词
📸这个人最可能是什么职业？
photographer
musician
actor
director
看图选词
🎻这种音乐类型叫什么？
classical music
opera
comedy
thriller
看图选词
😂这种电影类型是？
thriller
disaster film
comedy
action film
看图选词
🚀这种电影类型是？
animated film
science fiction film
comedy
opera
看图选词
🎭这种表演艺术是？
photography
comedy
opera
action film
听音选词
你听到的是哪个单词？
photographer
photograph
photography
musician
听音选词
你听到的是哪个单词？
comedy
thriller
opera
action film
听音选词
你听到的是哪个词组？
action film
disaster film
animated film
science fiction film
听音选词
你听到的是哪个单词？
musician
magician
mathematics
mechanic
听音选词
你听到的是哪个词组？
classical music
popular music
country music
rock music
选词填空
I love action films because they're so ?.
exciting
boring
slow
sad
选词填空
You ? wear a helmet when riding a bike.
must
needn't
can't
don't
选词填空
I've been crazy ? classical music since I was six.