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他们友好吗？
Aliens
Are there any aliens in space?
Are they friendly?
What do they look like?
Read the text
Think and say
They are birds.
They are human beings.
It came from the Earth.
astronuats
aliens
Liz & Gus
Planet X
A map of planet X
Listen and choose the correct answers.
Where will the mother ship land in?
A. Square B4
B. Square C2
C. Sqaure D1
2. When will the mother ship land?
A. Tomorrow
B. The day after tomorrow
C. In three days
Listen and answer the questions.
1. Why cannot the mother ship be landed in the forest?
2. How soon must the astronauts get to the landing site?
3. How many things can the astronauts carry with?
4. What mustn’t the astronauts do on this planet?
Because of the trees.