the sky, which we can not identify.

2) Do you believe in it?

I never believe in spacecraft carrying visitors from outer space.

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?

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?

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

Picture four: Stonehenge

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