如图所示是一个电能表，对其中的重要参数，下列说法错误的是（   ）

目前很多学校纷纷开展了对青少年的青春期健康教育活动。学校这样做将有助于中学生（    ）

①彻底消除青春期的烦恼                                                         ②提升保持身心健康的意识，增强正确处理青春期困惑的能力

③了解青春期生理发育的特点，悦纳青春期身体的变化             ④健康踏实地度过青春期

根据材料内容，选择正确答案。

Dear Frank,    

    Thank you for your postcard. I'm very glad you are having a good trip now. Ottawa is very beautiful in May. I hope I will have a chance to go there one day.

    Our summer holidays will start next month. I enjoy my summer holidays, although(虽然)it's hot at that time in America. During summer holidays，I can swim in the sea and go fishing. It's so cool. And I am going to our hometown near Chicago with my sister Linda，and my parents agree(同意). Our uncle lives  there，so Linda and I can stay with him.

    We are not going to take a plane. We are going there by train. I am going to fish there. And Linda likes painting. She is going to do some painting there. I'm sure we'll have a good time.

                                                            Sincerely,

                                                              Jack