I never believe in spacecraft carrying visitors from outer space.

Picture two: Yetis

1) Where are the Himalayas? It is in the south of Asia.

2) What's the weather like there? cold.

3) What is the Yeti, and what is it like?

It's reported to be half-man and half-beast. It's supposed to live in the highest mountain in the world---Mount Qomolangma.

Picture three: Crop circles

It's said that the earliest crop circles appeared in England in 1647. Crop circles are reported to appear mostly in spring and summer. People are curious about the phenomenon. What about you? Do you really believe it's a natural phenomenon?

1. Do you believe in the existence of aliens?

2. Do you think the crop circles are made by aliens?

Picture four: Stonehenge

Who built Stonehenge in England and for what reason? No one knows the answer!

1. Have you ever heard or read about the Stonehenge?

2. Are you interested in Stonehenge?

3. Would you be interested in discovering more about them?

Step four: Discussion

1. Ask students to discuss the question On P1 in pairs or a group of four.

2. Then ask each group leader to report the result of their discussion

Step five: Language points

1. tell a story about a mystery

2. can't tell......说不准

tell 与be able to /can /could 连用"判断、区别、猜测"

=decide /determine/know

e.g. I really can't the difference between the twin brothers

3. run into

e.g. I run into an old school friend at the supermarket this morning

We run into a patch of thick fog just outside London

The project is running into financial difficulties.

Run sth. into sb./ sth.