Step 1.Warming Up:

Q.Have you ever seen these signs?

(look at the screem)

Step 2. Discovering

Find and underline the sentences in the passage that use -ing forms.

1.As the subject

①What have you discovered?

Compare the -ing form with a noun and a verb.

V + -ing form:

1)It can be used as the subject.

2)It can have its own object or/and adverbial.

②.Look at these sentences and explore more.

2.As the object

Read the sentences from the text and try to find some rules.