1. Syda Production/hutterstock
BRIGHT 1
Unit 11
Be quiet, please!
Syda Production/hutterstock

2. A notice is a note or placard that gives information or a warning.
What is a notice?
A notice is a note or placard that gives information or a warning.
What is a caution?
A caution is to warn people about a dangerous situation.

3. What are these?

4. Most notices or cautions are written in imperatives.
DO NOT ENTER
KEEP SILENT
STAND IN LINE

5. However, some notices and cautions are written like this (No + Verb –ing).

6. Students must come on time. Students must keep the classroom clean.
Students must listen to teacher when the teacher is talking.
Students must not do any harm
Students must appreciate others.
Rules in the classroom
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7. Must and must not are often used to express commands and prohibitions.
For giving commands
Subject
Must
Verb
Object/Adverb
You
must
come
early. We
study
hard.
For prohibiting
Subject
Must
Verb
Object/Adverb
You
must not
come
late. We
play truant.

8. Now, can you mention notice, caution or rules in your school?
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