丝绸的形成------成茧 The formation of silk-----TO COCOON

    以桑叶为饲料的蚕，称桑蚕，桑蚕属于完全变态的昆虫。学名bombyxmori，属鳞翅目（ledidoptera),它的一个世代，要经过卵、幼虫、蛹、和成虫（蛾）四个阶段。蚕的最后一次“脱皮”后开始吐丝结蚕，人们用茧丝，用丝织绸，而后精炼、印染、直至制成各种精美绝伦的真丝服装和真丝棉被。 

    Fed by mulberry leaves, the silkworm belongs to the insect of complete metamorphosis, with the scientific name for BOMBYXMORI, and belongs to LEDIDOPTERS. Each generation goes through four stages, egg, worm, chrysalis and moth. After the last molting, the silkworm starts to generate silk strings and to cocoon. People reel from cocoon, weave it into fabric, refine, print and dye it ,and finally use it to produce the exquisite and elegant silk garments. 

丝棉的形成------形成丝棉 The formation of the silk wadding- formation silk wadding