Unit 4 Astronomy:ue Science of The Stars

　　　　　　　　　　　　Unit 3

Teaching aims:

1. Enable students to improve their listening skills and reading ability.

2. Enable students to understand the development of gravity and how gravity affects

　 us in different times and places.

3. Arouse students' interest to search for the mystery of space.

Emphasis:

1. Words and expressions: gravity, float, cheer up, now that, break out, etc

2. Astronomic knowledge like gravity and black hole.

Difficulties:

1. Help the students to understand the development of gravity.

2. Help the students to know how gravity influences us.

Teaching methods: skimming, scanning, discussing.

Teaching aids: a tape recorder, a projector and a computer.

Teaching procedures:

Period one Reading

Step 1. Presentation

T: Hello, everyone! Today we'll come to Unit 4 Astronomy. Before that I have a question: Where do we come from? Or we can say: Who are our ancestors?

S1: Monkeys!

S2: Beijing Ren who lived many years ago.

S3: Reptiles.

S4: Mammals.

S5: Amphibians.

S6: Dinosaurs.