写一篇“my view on the negative effects of some advertisements 1

While it is true that some advertisements do provide useful information about new products,I believe that their primary effect is to encourage people to buy things that they don t really need.
First of all,most advertising does not introduce a brand-new product.Instead,it is designed to persuade consumers that one company's product is superior to that of another company.Second,when a product is new,the advertising is often designed to create demand for it.In other words,its goal is to convince potential buyers that this new product is really necessary,whether or not it actually is.Third,many advertisements are image ads,designed to sell people luxury products.The ads imply that by buying such products the consumer will gain something else such as happiness,respect or love.
While it can be argued that advertising is sometimes useful to consumers who may want to compare different brands,I believe its overall effect is to get people to buy things that they don't need.
翻译：
虽然某些广告的确提供了关于新产品的有用资讯,但我认为,它们的主要作用就是鼓励大家去买一些不是真的很需要的东西.
首先,大多数广告并不会介绍一个全新的产品.相反,广告设计的用意是要说服消费者认为某家公司的产品比另一家好.其次,当推出一项新产品时,广告的目的常是要制造对这项产品的需求.换句话说,它的目标就是要说服潜在的购买者相信这项产品真的是必需品,无论是否真的如此.第三,很多广告都是形象广告,目的是要将奢侈品销售给大家.这种广告会暗示,买了此类产品的消费者会得到其他的东西,如快乐,尊敬或爱.
虽然有人认为广告有时能够帮助那些相要比较不同品牌产品的消费者,但我认为,广告整体的效果就是要人们购买自己不需要的东西.