Notice to Visitors

Environmental pollution is getting serious here. Some activities are dangerous. In order to keep you safety and protect the environment, please follow the rules below.

1. Passengers can't hurt the animals, birds, useful insects or pick flowers.

2. Travellers mustn't swim from the boat.

3. Foreigners have to take their passports with them.

4. You should keep the water clean.

5. You shouldn't throw away the litter everywhere. You must throw it into trash can.

6. You don't have to go with the guides but it's safer.

Thank you for your cooperation.

The Three Gorges Travel Service T: Please look at the screen. Here is a notice to visitors. Talk about the notice in groups of 4. Try to get the meanings of the rules. I'll also show you a few phrases to help you. Pay attention to the usage of the Modal Verbs.

4. After talking about the notice in groups.Ask some students to show their explanations about traveling the Three Gorges.

S1: Passengers are not allowed to hurt the animals, birds and useful insects or pick flowers.

S2: Swimming from the boat is forbidden.

S3: Foreigners are required to take their passports with them.

S4: It is necessary for you to keep the water in the river clean.

S5: You are not allowed to throw away the litter everywhere. You must throw it into the trash can.

S6: It isn't necessary to go with the guides but it's safer.

Step III Rules of the Modals

1.First, get the students to practise Activity 2 on Page 44 in pairs. 2.Second, ask them to summary the rules of Modals.

T: Now let's practice Activity 2 on Page 44 with your partner in pairs, according to Activity 1 and the notice to visitors. Try to find out the notes of using the Modals.

3.A few minutes later, check the notes with the whole class.

S1: Modal Verbs have only one form in the present tense.

Modals never have an "-s, -ed, or -ing" ending.

S2: Not all the Modal Verbs have a present, past and future form.

S3: Some Modal Verbs have more than one meaning.

S4: Modal Verbs aren't followed by the infinitive verb "to". We can use the base form to follow a Modal.

S5: To ask questions with Modal Verbs, you needn't to use the Auxiliary Verb "do".

S6: To make a Modal Verb negative, you can't use "don't". S7: We can't use two