练习说明：
周一到周五是16个单词 + 一段翻译（单词做到认识就好，快速记忆多次重复。翻译关注紫色部分的表达，可以进行互译检测：看到中文回忆英文，看到英文回忆中文）
周六真题及其详解，再次巩固词汇体会完形题目
周日文章结构图，可以对照之前的翻译练习再次巩固
前期大家可以多关注单词。
Last month, Howard Schmidt, the nation’s cyber-czar, offered the federal government a proposal to make the Web a safer place - a “voluntary trusted identify” system that would be the high-tech equivalent of a physical key, a fingerprint and a photo ID card, all rolled into one. The system might use a smart identity card, or a digital credential linked to a specific computer, and would authenticate users at a range of online services.
roll into 集为一体
ID card / identity card 身份证
今日句子分析：
Last month, Howard Schmidt, the nation’s cyber-czar, offered the federal government a proposal to make the Web a safer place - a “voluntary trusted identify” system that would be the high-tech equivalent of a physical key, a fingerprint and a photo ID card, all rolled into one.
这个句子也是超级长的，但是抓住主干后就是一个offer sb a proposal向某人提出一个建议，后面的不定式to make the Web a safer place表示这个proposal的目的。
破折号——a "voluntary trusted identify" system做proposal的同位语进行补充说明，又接一个that定语从句修饰这个system。
