According to a recent survey,violence did exist in schools. Students ____ (show) their fear and parents and teachers also expressed their great concern about it. ____ (expert) hope the whole society will pay more attention to the mental health of adolescents.

    Nowadays, school violence is ____ hot issue. I think this is a phenomenon（现象）, ____ calls for our great concern.We should try every effort ____ (prevent) violence happening at school for more and more students would drop out of school if their personal ____ (safe) could not be guaranteed.In fact,violence can be learned.Children learn violent behavior from adults or from ____ they see on television or on the Internet.

    If I meet with school violence,I will not answer violence ____ violence, for it will result in ____ (much、fighting.I will tell my teachers or parents about it.I think they will help me deal with it well and they will protect me from the bad guys.

    All in all, every student should behave ____ (he) and keep away from violence.

材料一：2017年12月1日，***主席在***与世界政党高层对话上的主旨讲话中再一次提出构建人类命运共同体的思想。他说:“人类命运共同体，顾名思义，就是每个民族、每个国家的前途命运都紧紧联系在一起，应该风雨同舟、荣辱与共，努力把我们生于斯长于斯的这个星球建成一个和谐的大家庭，把世界各国人民对美好生活的向往变成现实。”

材料二：2018年2月10日，构建人类命道共同体理念在联合国社会发展委员会会议上首次被写入联合国决议。中国理念成为国际共识。中国的国际影响力、感召力、塑造力进一步提高，中国特色大国外交为世界和平与发展作出新贡献。

下列说明错误的是（     ）