A-Level Eco成绩没有提高，找不到突破点?选择题和简答题A水平，但总分拿A特别难?别想了，是你的Essay拖了后腿。

 

这篇文章中我将给你一些Essay buff，让你写作弯道超车不是梦!

在讲解具体问题前，我们先来看看一篇Essay的基本架构：

 

理解了Essay的结构，今后我们在答题时就会游刃有余。

我们举例说明：

With the help of diagram, discuss whether consumers will benefit from the introduction on a product of an effective maximum price.

步：关键概念+公式

Relevant definitions(Key terms)+Formula

首先我们识别出题干中的 key terms-maximum price 并对其定义进行描述，描述完定义后对其condition进行描述。

Define maximum price

Maximum price is the maximum legal price that a seller is allowed to charge for a product.The price is not allowed to rise above this level but it is permitted to fall below it.

The condition for maximum price to be effective

If the maximum price is set above the equilibrium prices, it has no effect,

since the equilibrium remains attainable. It is effective when set below the equilibrium price.

第二步：画图表+解释图表

Draw diagram+Explain diagram

其次从政府/生产者/消费者角度对图进行解析。

 

Explain the diagram

Here Pe and Qe are the equilibrium price and quantity that would prevail without government regulation.

The government, however, has decided that Pe is too high and mandated that the price can be no higher than a maximum price, denoted by P1.

At this lower price, producers will produce less, and supply will be Q1. Consumers, on the other hand, will demand Q3, so demand exceeds supply, and a shortage Q3-Q1 develops.

第三步：回答问题+举例子

Draw diagram+Explain diagram

说明最高限价的利弊效应

The beneficial and harmful effects of maximum price

As a result some people gain and lose from price controls. Consumers whocan purchase the product at a lower price are clearly better off, as surplus for them increases measured by rectangle A.

But those who have been rationed out and cannot buy the good are worse off because they lose the surplus measured by triangle B.

The net gain to consumers is the difference between rectangle A and triangle B.

Another major consequence of maximum price, with or without rationing, is the emergence of the black markets. This is a market in which goods are sold illegally at whatever price equates illegal demand and supply.

Black marketers would buy Q1 at the controlled price of P1 paying the amount measured by rectangle E.

They would sell at the price Pb, earning profits shown by the gray area between Pb and P1. The existence of such a market results in all consumers becoming definitely worse off.

第四步：评价(总结)

Evaluation (Conclusion)

最后说明consumers 是否benefit存在一些局限性：最高价格的总体影响取决于固定价格是低于还是高于市场均衡价格。

Conclusion

Finally we conclude that overall effect of maximum price depends on whether the price is fixed is below or above the market equilibrium price,

so far the consumer benefit is concerned maximum price can potentially result in an increase in consumer surplus .

温馨小贴士：A-Level考试时间相对紧促，考生要在短时间内完成Essay写作，所以在日常学习时一定要学在当下,疑问当场解决;同时对自己的易错点进行收集归纳。