【人教课标必修三】Unit 4 Astronomy: the science of stars

Unit 4 Astronomy: the science of stars

Teaching aims:
1. Talk about the science of stars

2. Practise giving instructions

1.    Learn to use noun clauses as the subject

2.    Learn to write an essay to show your problems and the way to overcome them.

3.    Vocabulary: astronomy, atmosphere, violent, explode, surface,         disappointed, gradually, cheer, mass, harmful, presence, in time, prevent …from… depend on, now that, get the hang of, break out

The first period  Intensive reading

Step Ⅰ Presentation

T: Hello, everyone! Today we will 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: dinosaurs

…

T: Very good! Do you know what it was like before life appeared on earth?

S4: Full of water…

Bs: I don’t  know.

T: Do you want to get more information?

Ss: Yes, we do.

T: Today we will learn something about how life began on earth. Turn to page 25. Let’s come to Warming up first.

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