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1.青蛙内外和分子内外题coincide...differ 分子的相似和外表的相似does not necessarily____, for example,几乎所有的青蛙都长的差不多, but他们的内部分子是____. 2.青蛙/蜥蜴/两栖动物皮肤和毒物题permeable/porous...absorbed #青蛙/amphibian的皮肤是如此的____，所以大自然中的有毒物怎样____皮肤毒害青蛙. #一种蜥蜴extinct是因为他们的皮如此的____,以至于很容易____poisonous gas.(no5) 【注解】amphibian:两栖动物. permeable:可渗透的porous:多孔的,可渗透的 3.人的眼睛聚焦细节能力把周围转为背景题focus on...background #The human eyes have the ability to ____on object. So when it happens, the environment will diminish to____. 4.苍蝇死而复生对野营者骚扰题resurgence 一个地方已经很多年没有受到什么(mxx)fly害虫骚扰了,但(mxx)fly最近变多了，导致了很多camper很不爽，指责the____of the fly is due to the purification of 当地的水源。 5.萤火虫发光和人造光能源效率比较题outstrips...rivals/ approach #Natre's energy efficiency often____human technology: despite the intensity of the light fireflies produce,the amount of heat is negligible;only recently have humans developed chemical light-producing system whose efficiency____the firefly's system. | 
