“在”的音节是“zài”。(    )

    We live on the Earth．The Earth was ____ ，but now some parts are dirty．Let's work together to keep the Earth pretty and healthy because the Earth is only home for all the living things．We should ____．We should ____．We also need water and trees．So we shouldn't  ____．We should stop  ____．

下列关于水的说法正确的是（  ）

阅读下面这首古诗，完成下面题目。

峡口^①送友人

司空曙

                                                                                      峡口花飞欲尽春，天涯去住^②泪沾巾。

                                                                                      来时万里同为客，今日翻成送故人。

【注】①峡口：两山夹水的地方，这里指长江出蜀的险隘。②去住：指走的人和留的人。