1. 1.-You must obey our rules.
2.-you must attend all your classes.
3.-you need to work hard.
4.-you don’t need to be a poet.

2. Need, don’t need to
and must

3. These verbs are used to
*Express the subjective attitudes and
opinions of the speaker, including
Obligation, necessity and no necessity

4. “Must” and
must not (mustn’t)
• It is used to express strong obligation, law, authority or
prohibition.
for example:
_Students must bring their books to classes.
_You mustn’t leave your books at home.

5. Some features of the modal
verb “must”.
*this modal verb is invariable:
One form for all the persons.
These means you must not add “s” to
the third singular person.
You must pay the rent.
She musts pay the rent.

6. Need and don’t need to
It is used to express a necessity.
for example:
_You need to rest if you want to wake up early.
_You don’t need to sing like a star at the
karaoke.

7. Exercises.
A.- I …….ask my teacher some questions before the
test.
b.- children ……. play with scissors.
c.- we ……. leave now. We will be late for school.
d.- you …………know how to compose to take music
classes.
e.- I …… to work hard if I want to be a musician.

8. More practice
• Re write the following sentences using modals so
that they have the same meaning.
a.- Your obligation is to arrive everyday at 8:00
o’clock.
You…………..
b.- A university degree is not necessary for that
job.
You ……………..

9. c.- eating is prohibited in class!!
You………
d.- if you want to be good at that
sport,it is very important to eat a lot
of calories.
You……….

10. Go to page 117.
• Work in pairs.
• complete the “truth questionaire”
and Write your answers.
• Share your answers with your
classmates.