这学期转专业,从bioengineering到ECON. 还没等我把经济基础知识补全, 就要考试了.现在上的课需要很多经济基础知识,老师在课上又suppose大家以前都学过的,都不讲. 实在是没办法,请大家帮忙啊!(表笑话我啊,新手上路,请多多关照! 说实话,现在撞死的心都有了)请哪位好心人,帮我用中文先解释一下下面的这些概念及其基本用法,计算什么的,多谢多谢多谢了!

1, consumer surplus / producer surplus

2,Suppose you wanted to know how much it costs Levis™ to make and sell one pair of bluejeans. What will you do?

3. real price and nominal price

4, economic efficiency

5,What does the first fundamental theorem of welfare economics tell us about

Aeropostale™ t-shirts? (the first fundamental theorem是怎么解释的呢?)
6, Von Thumen model

7, Minimum lot size zoning

请帮忙吧, 谢谢啊. 我这边也在使劲看英文的,希望能考好些.