The mot obvious purpose of advertising is to inform the consumer of available products or services.The second (31)___is to sell the product.The second purpose might be more important to the manufacturers than the (32) ___.The manufacturers go beyond only telling consumers about their products.They also try to persuade customers to buy the(33) __by creating a desire(34) _for__it.Because of advertisement，consumers think that they want something that they do not need.After buying somethin9，the purchaser cannot always explain why it was(35) ___.

Even(36) __—the purchaser probably does not know why he or she bought something，the manufacturers (37) ___.Manufacturers have analyzed the business of(38) ___and buyin9.They know all the different motives that influence a consumer’s purchase--some rational and(39) __emotional.Furthermore，they take advantage of this(40) ___.

Why(41) ___so many products displayed at the checkout counters in grocery stores? The store management has some good(42) ___.By the time the customer is(43) ___to pay for a purchase，he or she has already made rational，thought—out decisions(44) ___what he or she needs and wants to buy.The(45) ___feels that he or she has done a good job of choosing the items.The shopper is especially vulnerable at this point.The(46) ___of candy，chewing gum，and magazines are very attractive.They persuade the purchaser to buy something for emotional，not(47) ___motives.For example，the customer neither needs nor plans to buy candy.but while the customer is standing，waiting to pay money，he or shemay suddenly decide to buy(48) ___.This is exactly(49) ___the store and the manufacturer hope that the customer will(50) __.The customer follows his or her plan.

31.purpose 【解析】从文中的第一句话“The most obvious purpose...”可以看出后面还有别的目的，而不是仅仅有最明显的目的。故答案为purpose。

32.first 【解析】根据题意，作者想在这里做一个比较，而比较的对象是目的。这里作者仅仅给出了两个目的，所以这里是和第一个目的进行比较。故答案为first。

33.production【解析】从前一句话“The manufacturers go beyond only telling consumers about their products.”可以看出，一方面广告要介绍自己的产品，而第二个目的就是卖掉自己的产品。所以这里作者想要表达的意思是“广告要使得顾客有一种购买的欲望去购买自己的产品。”故答案为production。

34.for 【解析】解析见上题。desire后面用介词for。故答案为for，表示“…的欲望”。

35.bought 【解析】本句的前一句话说“顾客认为他们需要一些他们其实不需要的商品。”这就是广告的作用。但是买完之后，“他们却不知道当时为什么买了这种商品。”这里是被动的句式。故答案为bought。

36.though 【解析】本句话的意思是“尽管知道顾客们可能不知道自己为什么买了这些商品，但是卖家却知道怎么去做。”故答案为though。

37.do【解析】解析见上题，为了避免与前面的know重复，这里可以换做do。故答案为do。

38.selling 【解析】关键是看and后面的buying。本句话的意思是“商家分析市场的供需情况。”故答案为selling。

39.some 【解析】关键是注意and前后一致。“some rational and...emotional”，前面说促使顾客购买的动机有很多，有的是理性的，有的却是冲动。所以这里应该是some。故答案为some。

40.knowledge【解析】前面讲商家正确的分析市场的供需信息，知道是什么因素影响顾客的购买欲望。这就是他们利用的信息知识。故答案为knowledge。

41.are 【解析】分析句子结构，这里缺少系动词be来构成动词的被动形式。故答案为ale。

42.reasons 【解析】本段的第一句话提出问题，问为什么在结算处摆设了那么多的商品。很明显，后面的文章对这个问题进行回答，并列举了原因。故答案为reasons。

43.ready 【解析】顾客来到结算处，说明他们准备好了要付账。be ready to的意思是“准备好了做某事”。故答案为ready。

44.on 【解析】“…的决定”英语表达为“decision on sth.”这里介词需要用on。故答案为on。

45.customer 【解析】从这个句子的宾语“…that he or she has done a good job of choosing the items.”可以看出，这里说的是顾客的行为，他们认为自己买这些商品是很理性的。故答案为customer。

46.display 【解析】这里要回应本段第一句话中的“displayed”。在出口结算处展示的这些小商品无疑是一种诱惑。这里需要用名词形式。故答案为display。