题目

完形填空 In order to change the way Americans think about their trash footprint, Rob Greenfield is going to live like the average American for one month. He'll eat, shop, and consume just like the average American who14.5 pounds of trash per day. He has to2every piece of trash he creates. That's nearly 140 pounds3the end of the month(almost his body weight)! Every coffee cup, plastic bag, pizza box, every single piece of trash be creates will be on his4, everywhere he goes. The idea behind Bob's “TrashMe” project is to show people the5effects of trash. Most people6think about how much 8．如图所示，在边长为1个单位长度的正方形网格中，作出△ABC的边BC上的高，并计算△ABC的面积．