7/24/2019 Guided Discovery Present modals of deduction

1/2

Intermediate

Modals of Deduction

Look at the picture.

What is it?

What is it not?

Its a man.

Its not a woman.

These things are facts. What do I do if its not a fact?Can I say Hes a doctor or Hes not a criminal?

Why? Why not?

MEANING:

Think about this example - The man is on the street. He is singingand looks like he is going to fall over. He smells like beer.

People on the street say:

Hemust bedrunk.Hemight bevery happy.He could bean alcoholic.Hemay becelebrating.He cant bea pop-star.

Which one means I believe this is true?Which one means I believe its not true?

Put the words in BOLDon the line - decide which means more

certain and which means less certain.

Certain its true Certain its not true

7/24/2019 Guided Discovery Present modals of deduction

2/2

Intermediate

Modals of Deduction

PRONUNCIATION:

What happens to the /t/ sound in must and cant in these phrases?

Harrison Ford is very old. He must be at least 70.

John is on holidays. That cant be him at the door.

FORM:

What kind of verbs are must / can / could / may / might ?

What kind of verb comes after them?

What is the negative form of:

Must Might May Could

_______ _______ _______ _______

PRACTICE:

Write the underlined words in the sentences using must / can /

could / might / may :

1. Theres a knock at the door. Im certain its John.

2. Take an umbrella. Its possible it will rain later.

3. Shes only twenty-five. Im sure she doesnt have fivechildren.

4. John needs to work late. Its possible he wont come to theparty.