2019-2020学年人教版高中英语必修3教案: Unit 4 Astronomy:the science of the stars period4 教案2
2019-2020学年人教版高中英语必修3教案: Unit 4 Astronomy:the science of the stars period4 教案2第3页

systems. With this technology, scientists can create a surface zone with the relatively constant temperature. You will find that very helpful on your trip to the moon.

Homework

Write a short article explaining one of the problems that you might have on the moon. Set out what you should do to overcome this difficulty and have a happy visit.