问题 填空题

医院利用超声打掉人体内的结石说明声音可以传递______;汽车上的电子防盗报警装置,在汽车被撬开时能发出报警声,提醒人们车辆被盗,这是利用了声音可以传递______.

答案

医院利用超声打掉人体内的结石说明声音可以传递能量;在汽车被撬开时能发出报警声,提醒人们车辆被盗,这是利用了声波能传递信息.

故答案为:能量;信息.

材料分析题

以下节选的是两位同学给学校心理老师的来信:

◆我是农民工的孩子,今年来到学校读书。“城里的同学会接纳我吗?”我常常这样问自己。平时我就在教室里,不好意思与其他同学交往,偶尔听到同学说我不会与人交往。请问我该怎么办?(陈同学)

◆我本来在湛江的一所名校读书,因为父母工作调动来到现在的学校。原来我的成绩就出类拔萃,到现在的班级更是无人能比。我觉得本班的同学学习都不大尽人意,缺乏我原来所在学校班级你追我赶的气氛,因而我内心有点对同学不屑一顾,时不时地表现了出来。有同学说我孤傲,不尊重他们,没有同学愿意与我交往。我感到很烦恼,特向你求救。(杨同学)联系所学知识,完成下列问题:

(1)如果你是心理老师,你会怎样回答陈同学和杨同学的问题?

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                             

                                                                                                                                                             

                                                                                                                                                              

(2)我们在与别人交往时还应该注意哪些事项?(至少三点)

                                                                                                                                                             

                                                                                                                                                               

单项选择题