时光匆匆流逝,作为新生的我们,在学习中进步,在生活中成长,已渐渐融入高中校园生活。面对各种五彩斑斓的活动,志同道合的我们选择参加地理模型制作大赛。经过再三斟酌,我们选择制作“大洋板块俯冲示意模型”。大陆板块与大洋板块因密度较大、厚度较小、位置较低,所以向大陆板块下俯冲至地幔,洋壳在 Hurried away time, as a newborn we, in learning progress, growing up in life, has gradually integrated into the high school campus life. Faced with a variety of colorful activities, like-minded we choose to participate in the Geographic Model Competition. After repeated consideration, we choose to make a “subduction oceanic plate schematic model.” Due to the higher density, smaller thickness and lower position of continental plates and oceanic plates, subduction to the mantle beneath the continental shelf resulted in