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Learn about using 'must' and 'mustn't' in school rules and signs, like keeping quiet in the library. Practice rewriting rules and signs using these structures. Rhyme Time included!
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Primary Longman Elect 2A Chapter 2 Must / mustn’t Rules and signs
Must / mustn’t • We use ‘must’ or ‘mustn’t’ to tell people what they have to / don’t do. • We sometimes use ‘must’ or ‘mustn’t’ in school rules. • e.g. You must keep quiet in the library • You have to keep quiet in the library. • e.g. You mustn’t eat or drink in the library. • You cannot eat or drink in the library.
Must / mustn’t You must line up in the corridor.
Must / mustn’t You must sit still.
Must / mustn’t You must keep off the grass.
Must / mustn’t You mustn’t climb the trees.
Key structure You must keep quiet. mustn’t spit. must not Sit still in the hall. Wait for your turn computer room.
Rules • We can usually see rules on signs in schools. • Some signs tell us we mustn’t do something. We use words ‘No’ and ‘Don’t’. • We always add ‘-ing’ to the action word when we use ‘No’.
Rules You mustn’t climb the trees. No climbing. Don’t climb the trees.
Rules You mustn’t litter. No littering. Don’t litter.
Practice Rewrite the rule. Use must or mustn’t. Don’t pick the flowers. You mustn’t pick the flowers.
Practice Rewrite the rule. Use must or mustn’t. Wait for your turn. You must wait for your turn in the computer room.
Practice Rewrite the rule. Use must or mustn’t. You mustn’t spit.
Practice Write the sings using No or Don’t. You mustn’t litter. No littering. / Don’t litter.
Practice Write the sings using No or Don’t. You mustn’t pick the flowers. Don’t pick the flowers.
Rhyme Time You must line up in the corridor. You mustn’t spit onto the floor. In the computer room, you must wait your turn. You must sit still and keep quiet if you want to learn.
