Modals of obligation презентация

© Cambridge University Press 2015
You
stop
at a red light.
must

© Cambridge University Press 2015
You
18
have to
be over 18
to see the film.

© Cambridge University Press 2015
You
must
take
photos.
n’t

© Cambridge University Press 2015
You
have to
to enter the museum.
don’t
pay
Museum
Mondays
Free Entry

© Cambridge University Press 2015
He
go to the hospital.
should

© Cambridge University Press 2015
He
should
draw on the wall.
n’t

© Cambridge University Press 2015
Can you remember the rules?
Use must and have to to say ‘this is necessary’:
You must / have to stop at the red light.
Use don’t have to to say ‘this isn’t necessary’:
You don’t have to go to school on Sundays.
Use mustn’t to say ‘don’t do this’:
You mustn’t walk on the grass.
Use should to say ‘it’s a good idea’:
You should go to the doctor.
Use shouldn’t to say ‘it’s not a good idea’:
You shouldn’t go to bed late.

Speaking
© Cambridge University Press 2015
Work in groups. You will read cards and decide what to do.

© Cambridge University Press 2015
Speaking
Well, I think we have to …
I think we should …
We mustn’t … , because …
Discuss the options in groups and choose. Then talk as a class and move onto the next card.