Directions.

There has been a discussion recently on the issue of digging wells. Write an essay to the newspaper to

1. show your understanding of the symbolic meaning of the picture below

1) the content of the picture

2) the meaning/your understanding

2. give a specific example/comment, and

3. present your suggestions

You should neatly write 160--200 words on ANSWER SHEET 2.

下列各点中，位于“南半球、西半球、高纬度、有极昼极夜”现象的是[ ]

A、

B、

C、

D、