Modals: Expressing obligation, advice or permission.

Modals: Expressing obligation, advice or permission.

UNIT 3

OBLIGATION

• have to

• must

• 
  

  EXAMPLE:

• Students have to / must turn off their phones during tests.

don´t have to

shows there is no obligation.

Example: Students don´t have to turn off their phones between classes.

ADVICE

• should

• shouldn´t

• 
  

  EXAMPLE

• Students should put away their cell phones in class. They shouldn´t let their phones interfere with their studies.

PERMISSION

• can

• can´t

• may

• may not

• 
  

  EXAMPLE

• Can students use their computers to go online during class? They can / may if it is for something for class. They can´t/ may not go online to access social media.

MUST, MIGHT and CAN´T

We use them to express how sure we are that something is true.

VERY CERTAIN, SURE

• must

• .

• EXAMPLE

• There must be two people with the same username. That´s not the same person I saw on social media yesterday.

Multiple Choice

Amelia loves her cat so much. Her password _______ be her cat´s name.

• might

• can´t

Multiple Choice

Her little brother ______ be the same age as my sister. Her brother is in first grade and my sister is in fourth rade.

• might

• can´t

MOSTLY CERTAIN, POSSIBLE

• might

• 
  

  EXAMPLE

• The information on the website might be wrong. I don´t believe that horses have two stomachs.

VERY CERTAIN, IMPOSSIBLE

• Can´t

• 
  

  EXAMPLE

• He can´t email you tonight. He doesn´t have acess to the Internet.

Multiple Choice

On social media, we _______ connect and communicate with others. And we ______ find people with similar interests. We _____ share ideas with our new friends even if we aren´t in the same location.

• should / may

• can / may / can

• Should / have to / can

Multiple Select

MIGHT shows:

• something possible

• something impossible

• something sure

Multiple Choice

Juan _______ have an unusual username. He never remembers it.

• must

• might