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Grammar Focus
Don’t run in the hallways.
Don’t fight.
What are the rules?
Can we eat in the classroom?
We must be on time for class.
No, we can’t, but we can eat in the dining hall.
Can we wear a hat in class?
Does he have to wear a uniform at school?
What do you have to do?
Yes, we can./ No, we can’t.
Yes, he does./
No, he doesn’t.
We have to be quite in the library.
祈使句的用法
1.祈使句的概念
(1)祈使句是指用来表示请求、命令、叮嘱、建议等的句子。
祈使句没有主语，谓语动词用原形，句末使用感叹号或者句号。
例：站起来！
一定要按时。
（命令）
(叮嘱)
Stand up!
Be sure to be on time.
(2)如果祈使句表示客气地请求，一般要加上please。
please可以放在句子前面也可以放在句子的后面。
例: 请跟我读。
Please read after me.
（请求）
= Read after me, please.