Talks and Conversations Directions: In this part of the test, you will hear several short talks and conversations. After each of these, you will hear a few questions. Listen carefully because you will hear the talk or conversation and questions ONLY ONCE, when you hear a question, read the four answer choices and choose the best answer to that question. Then write the letter of the answer you have chosen in the corresponding space in your ANSWER BOOKLET. 听力原文：W: What are you laughing about? M: I just saw the serious advertisement on TV for Germen soups. It's said our products are home-made with the freshest vegetables and fruits. Then a scene in the factory showed that products were prepared and packed by the most sophisticated machinery. W: And I am sure that the word NATURE was put on the jars and cans of the products. I think the stupidest advertisements are those that imply that you are one of a kind. If you buy the product, you will be a very special person. Now you will be just like every other one of the 20 billion people who bought it. M: That's really silly. But to me, the dullest of them all is when advertisers put a celebrity on TV to talk about a particular brand of soap or about a particular car. I bet that the celebrity's never used the product before they got the job of appearing in the commercial. W: Yeah! But most of these commercials work and people remember the product. M: I agree, here we are talking about ads we've seen, aren't we? We are all influenced by those celebrities and brand names. W: I think teenagers are specially vulnerable. Advertisers try to get teenagers used to a brand because they know that in later years, the teenagers will stick to that particular product of theirs. (31)