42＋4=____                  交换             4＋42=____

处于青春期的我们，时常迷茫烦恼，甚至有时自己都不认识自己。现在请你静心思考，以下观点正确的是（    ）

①青春期生理上的巨变也会造成心理上的波动   

②正确看待青春期的萌动心理，  坚持正确的男女同学交往原则

③青春期要通过自我评价、比较评价、他人评价  等方式来正确认识自己、完善自己

④青春期的我们已经完全独立，不再需要父母和老师的帮助

下列几种氢键：①O﹣H…O、②N﹣H…N、③F﹣H…F、④O﹣H…N，按氢键从强到弱的顺序正确的是（　　）

通读全文，根据对短文的理解，选择正确的答案填空。    

    My name is Tony. I'm1  English boy. I'm twelve years old. I'm a  2 . Jim is my good friend. He3 from the USA. We are in 4  class. He's twelve years old,  5 . I have a nice  6 . Now, look  7  my photo. Jim has a long face, small eyes, brown and short hair. And the boy in a yellow cap is me. Yellow is my favourite 8 . Jim has a  9 . Her name is Kate. She is ten years old. Kate has a round face and  10 eyes. They look different.