A. They must be frightened.

B. They both are injured.

C. They might have some food to eat.

Answers: 1.C 2.A 3.B

T: Can you say out the main idea of the story in you own words?

S:

T: Now let's look at whether your story is true or not.

Do the exercise 2 Listen to the dialogue again and complete the gaps

Play the cassette once for students to listen and then again for them to complete the gaps.

Ⅲ Grammar

Do the exercise 3.

The two people in the dialogue make various guesses at the two missing students.

They use the following sentences but you need to complete the gaps with modal verbs.

Check students' answers by having them read the sentences aloud. Draw their attention to the different infinitive forms after the modals.

Do the exercise 4.

As a class students discuss the meaning of the sentences in the table and decide if they express decision, advice or speculation.

Ask students how they would express decision (is going to; is about to;) and advice (should , had better, )

Do the exercise 5

The grammar we learn today is modal verbs. Modal verbs can express possibility, permission, intention and guess. Now do the exercise 5. Which of the modal verbs in exercise 3 express the following.

Do the exercise 6

As a whole class, students discuss what the sentences 1-3 are referring to and match them with a, b and c.

Guide students to analysis the modal verbs' use in the past, in the future and now.