Water bottles, shopping bags, and other trash litter the planet, from Mount Everest to the Mariana Trench, because plastics are everywhere and don't break down easily.一、语法结构剖析1、找出谓语动词Water bottles, shopping bags, and other trash litter the planet, from Mount Everest to the Mariana Trench, because plastics are everywhere and don't break down easily.2、划出句子结构Water bottles, shopping bags, and other trashlitterthe planet, [from Mount Everest to the Mariana Trench], 【becauseplastics areeverywhere and don't break down[easily]】.[主干]Water bottles, shopping bags, and other trash litter the planet.“水瓶、购物袋和其他的垃圾散落在这个星球”。|--[状语]from Mount Everest to the Mariana Trench “从珠穆朗玛峰到马里亚纳海沟”|--[条件状语从句]because plastics are everywhere and don't break down easily“因为塑料到处都是且不容易分解” |--[连接词]because |--[主语]plastics |--[谓语1]are |--[宾语1]everywhere |--[谓语2]don't break down |--[状语]easily二、词汇含义litter 乱扔、使遍布，使凌乱
