\s\up1(21(21)gather vt.搜集，收集；使聚集

　　\s\up1(22(22)本句为省略了you are的时间状语从句。在when, while, if, as if, though, as, until, once, whether, unless等引导的状语从句中，常省略跟主句相同的主语和be动词。

　　\s\up1(23(23)be concerned with ...对......关心、关注或感兴趣

　　\s\up1(24(24)定语从句that they would be interested in修饰some history。

　　\s\up1(25(25)personally/'pɜːsənəlI/adv.个别地；就本人而言；本人，亲自

　　\s\up1(26(26)get something across把......表达清楚

　　\s\up1(27(27)put together组织，汇聚，组装

　　\s\up1(28(28)approach n．方法，途径(后常接介词to)

　　\s\up1(29(29)句中what引导宾语从句；you want to use为省略了关系代词that或which的定语从句，修饰approach。

　　2.你希望你的广告宣传活动说什么？

　　在确定了你的受众后，就该决定你想让他们知道什么或者思考什么了。为了让受众做出预期的反应，努力去吸引他们是很重要的。你可以通过自己的调查研究来搜集这种信息。在设计一个公益广告宣传活动时，你可能会想问自己：

　　有关这个问题我的受众已经了解到什么了？,·他们关注或担心这个问题的哪些方面？

　　这个问题有没有一些让他们感兴趣的历史背景？,·这个问题是如何影响他们的个人生活的？

　　3.如何引起你的受众的注意？

　　当组织一场广告宣传活动时，有许多不同的方式可用来传递讯息。你必须决定你想采用什么样的方法。这一决定应该主要取决于你的目标受众以及哪些类型的广告才能最大限度地引起所选择的人群的注意。

　　Anti­smoking\s\up1(30(30) ad campaign

　　Every year millions of people around the world die due to\s\up1(31(31) smoking. Every packet\s\up1(32(32) of cigarettes contains poisonous\s\up1(33(33) chemicals that can result in lung\s\up1(34(34) cancer\s\up1(35(35) and heart disease\s\up1(36(36). This costs countries a lot of money and causes great damage to\s\up1(37(37) the welfare of the people. There are huge numbers of smokers\s\up1(38(38) in Asia. This is why we have chosen anti­smoking as the subject of our ad campaign\s\up1(39(39).

The target audience is high­school teenagers\s\up1(40(40). Our main aim is to discourage young people from smoking\s\up1(41(41). Our research shows that young people care about\s\up1(42(42) their health and future. We will educate them about the bad physical effects of smoking and how smoking affects those people around them. We will explain all the advantages of not smoking, such as saving money which can then be spent on other things\s\up1(43(43). Our interviews also indicate\s\up1(44(44) that young people are concerned about\s\up1(45(45) what is cool and what their friends like\s\up1(46(46) . We will show how smoking is not cool or