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Don’t listen to music in the classroom.
Don’t run in the hallways.
Don’t eat in the classroom.
Don’t wear a hat in class.
Don’t talk in class.
Don’t talk with each other in class.
不准在上课讲话.
Please keep quiet in the library.
Don’t speak loudly in the library.
Don’t smoke. (No smoking)
不准吸烟. / 禁止吸烟!
Alice: No, we can’t. And we always have
to wear the school uniform.
John: I see.
Alice: Oh, and we also have to be quiet in
the library.
important 重要的
bring 带来；取来
have to 必须；不得不
uniform 校服；制服
quiet 安静的
Language Points
1.A lot of :许多，相当于lots of,既可修饰可数名词
，也可修饰不可数名词。
例如：a lot of apples a lot of milk
2.must 情态动词后接动词原形，指主观上必须
要做某事。而情态动词have to后接动词原形
指客观上必须，不得不做某事。
I must study hard.
I t’s raining outside, so I have to take a taxi to shool.