雅思作文有一个好的开头至关重要，那么雅思双边讨论类型作文首段该怎么开头呢？小编分析给你听。

　　在首段中，我们要写出三个部分，分别是：Lead-in sentence （引入现象/话题），Public opinion（转述题目中的观点），Thesis statement（文章中心思想）

　　Example

　　Air transport is increasingly used to export fruits and vegetables to countries where they cannot be grown or are out of season. Some people say this is a good thing while other people think it cannot be justified. Discuss both views and give your own opinion.

　　背景句：

　　套句：主语从句

　　The specific issue of …/ The issue of whether…

　　has aroused the public's great concern.

　　has triggered a fierce argument.

　　has sparked a heated debate.

　　has generated a controversial discussion.

　　背景句：

　　The issue of whether exporting fruits and vegetable by means of air transport is conducive to the society is of great concern to the public.

　　背景句赏析：

　　1) The issue of ________ has triggered / aroused a new round of heated debate in recent years.

　　2) There is a heated discussion nowadays over the issue of __________ .

　　3) The discussion about _________ has aroused general concern in recent times.

　　4) The issue of _________ has been brought into focus recently.

　　5) The issue of whether + 议题陈述 + is of great interest to the general public.

　　6) The past few decades have seen a considerable increase in __________ .

　　7) These days/ Nowadays, it seems that _________________.

　　Public opinions 常用句型

　　1) Some claim / assert / deem / maintain / suggest that __________.

　　2) It is suggested that _________.

　　3) Some people maintain that it is better for ___ to do __________.

　　4) Yet, there remains some disagreement as to whether ______ or ____.

　　5) There crops up a social dilemma/ambivalence over the issue that___.

　　表示"认为"--- insist , maintain , argue , consider , deem , reckon ,

　　declare ,  profess , assert , advocate , pronounce , harbor , hold , possess

　　表示"看法"--- view, standpoint , perception , argument …

　　改写原题：

　　Some people argue that exporting food benefits people in both exporting and importing countries, while others claim that air freight poses a serious threat to environment.

　　Sentence 3 :Thesis Statement

　　在讨论类和观点类文章中，第三句话有两种写法：

　　一种是阐明自己的立场；

　　同意（单边倒）、反对（侧重一边）、中立（双方面）

　　另一种是不阐明自己的立场，只是简单说文章会讨论什么内容.

　　范文赏析：

　　The issue of whether exporting fruits and vegetable by means

　　of air transport is conducive to the society is of great concern to the public. Some people argue that exporting food benefit people in both exporting and importing countries, while others claim that air freight pose a serious threat to environment. To my mind, people will become a major beneficiary from such trade if they can develop environmental-friendly fuel for air transport.