painter during the Renaissance. The most outstanding work of his is the Mona Lisa which is famous for the mysterious smile on Mona Lisa's face. What's more, Leonardo was a scientific inventor. At that time, he could even have in mind what would appear hundreds of years later. In short, he was a man interested in everything and with many talents. He was really a genius of all time.

T: That's perfect. Do you want to learn more about him?

Ss: Yes.

T: If so, turn to Page 18.

Step Ⅱ Grammar (1)

T: In Activity 3, we can find another short passage about Leonardo which contains some non-finite verbs for us to choose from. So first I want to ask you some questions about the non-finite verbs. How many kinds of non-finite verbs have we learnt?

S: Three. They are participles, gerunds and infinitives.

T: Yes. Now read the passage quickly and get the general idea of the passage. At the same time, pay attention to the words for us to choose from.

A short time later.

T: Have you finished?

Ss: Yes.

T: What kind of form of the verbs are they?

Ss: -ing form and -ed form.

T: You are right. Let's do this activity together to review the different uses of the present and past participles and the uses of gerunds. I will show you an example. Astonish means surprise. In the second sentence, because Leonardo had extraordinary talent, his teachers felt very surprised. So we choose the word astonished to express how a person feels, and it is used as predicative.

T: Now, it is your turn to choose the other words by following my example.

S: In the second group, the subject is progress. So it is not used to describe what a person feels, it means the progress makes the people feel disappointed. So we