1. 认识这个词（基础篇）
词：edge
英英释义：something that gives you an advantage over others
例句：Being able to speak good English is widely considered an edge in China.
2. 体会这个词 （进阶篇）
“edge”作名词最基本的意思是“边缘”“刀刃”，不过它也常可以引申表示“优势”，我们可以用它来替换“advantage”。
找工作时，有一定的实习或工作经验绝对是一种优势，我们就可以说：
As far as job hunting is concerned, experience is an absolute edge.
使用“edge”时，最常见的一个搭配是“A has an edge over B”，表示 A 比 B 更好。比如，许多人选择在一线二线城市生活，因为相比其它城市，大城市的文化更多元，工作机会更多。
First- and second-tier cities always have an edge over other cities in terms of cultural diversity and job opportunities.
另外，常和“edge”搭配的动词有“maintain”（保持）和“lose”（失去），比如我们想说美国的军事优势还在，不过移民优势正在减弱。我们就可以说：
It seems the US is losing its immigrant edge, but it has maintained its military edge.（读背）
想表达在某人或某物在某一方面有优势，我们可以在“edge”前添加相应的形容词。比如《经济学人》在一篇讨论美国创新的文章中，就有这样一句话：
Indeed, the assumption that America is losing its innovative edge is open to question.
这句话的意思是：“的确，美国正在失去它的创新优势这个假设是可以质疑的。” 这句话的主语是“the assumption that America is losing its innovative edge”，这里的“innovative edge”就表示在创新方面的优势。
3. 作业:
1）使用《牛津英语搭配词典》查“edge”，了解它的常用搭配。
2）翻译：
这款新的电动汽车将会优于它的竞品。
The new electric car will have an edge over its competitors/rivals.
3）造句:
我们的房子已失去作为学区房的优势，但仍保留着地理位置优势。
It seems our house is losing its school district edge ,but it has kept its geographical edge.或
Our house has lost the edge of being a school district, but still retains its geographical edge.
