我国部分沿海地区人们为了追求更大的经济效益，在陆上修建高位养虾池（如下图），高位虾池底部铺设隔水层，引海水养虾，养虾过程中要投饵料，换海水，废水多经地表流入海洋。引水、蓄水、接水过程都有渗漏。

分析高位虾池对当地环境的不利影响。

请写一个图象在第二、四象限的反比例函数解析式：____ ．

根据短文内容，判断正确还是错误。

    Xiao Hong and Xiao Lan are classmates. Xiao Hong is short,but Xiao Lan is tall. Xiao Hong likes singing. Xiao Lan likes singing, too. So they all like music class. Xiao Hong has a brother. His name is Xiao Qiang. He has short hair and big ears. He is lovely. Xiao Lan has a sister. Her name is Xiao Li. She has long hair and big eyes. She is lovely, too.

如图漫画启示我们（    ）

①如果没有或丧失目标，就会迷失前进的方向      ②有目标的人是快乐的，无目标的人是迷茫的

③理想是我们不断努力的动力                                  ④理想源于现实且高于现实