My feelings about science have ____(complete) changed. More than one science teachers at my new school____ excellent and____(friend). The science____(facility) are very good with laboratories that have all the____(late) equipment. Our chemistry teacher takes us to public science lectures about four times____ term，____are always interesting, because the lecturers are famous at their area of science. In the last 20 years, seven Canadian scientists____(win) the Nobel Prize. Now____I'm becoming more and more interested in is physics and I want to study it at university. But my parents are____(astonish), as they always thought I would become an English teacher.

世界因生命而精彩，每种生命都有其存在的意义与价值，多种生命息息相关，需要相互尊重、相互关爱。下列想法或做法体现这种观点的有（   ）
①草坪上的牌子上写着，“小草正在休息，请勿打扰”②尊重地球就是尊重生命，拯救地球就是拯救人类自身
③人类为了更好地发展经济，应该尽可能利用一切资源④我们保护环境，保护生命家园，维护生态平衡

如图所示，磁铁吸住两根铁钉的一端，那么这两根铁钉的另一端将（　　）