對象要素法：每一個雅思寫作題目都包括很多的要素，在我們準備這些雅思寫作的.時候，就可以從這些要素入手，逐一分析，這樣就會讓整個雅思寫作更加的全面。
考題：air transport is increasingly used to export fruits and vegetables to some coutries where can not be grown or out of season. Some people think it is not justified. What is your opinion?
我們可從話題所涉及的各個對象出發，如空運水果蔬菜是否合理，那麼空運水果蔬菜所涉及的對象就多了，包括出口國，進口國，消費者，航空公司和政府。
對各個要素的分析：
1. for consumers, they can taste some foreign foods without going to other countries.
2. for transporters, such operation can bring much income. Actually, only about 40% seats of plane are in service in off-seasons compared to offering discounted plane tickets, transporting foods may be a better choice.
3. for exporters, such orders are gold of their business. With the development of technology, the yield is increasing, but if those foods can not be sold immediately, they may decay/rot/ go bad/ moldy. The air transportation just solves this problem and brings money for them.
4. for governments, they cannot be happier than receiving tax by economy development.
