2013年12月大学英语四级听力真题第3套+答案+原文+评析_大学英语听力

2013年12月大学英语四级听力真题第3套+答案+原文+评析

　　23. According to the passage, why havent scientists found a cure for the commoncold?

　　24. What does the speaker say about the symptoms of the common cold?

　　25. What do some scientists say about taking medicines for the common cold,accordingto the passage?

　　听力填空

　　You probably have noticed that people expresssimilar ideas in different ways, depending on thesituation they are in. This is very natural. Alllanguages have two general levels of usage: a formallevel and an informal level. English is no exception. The difference in these two levels is thesituation in which you use a particular level. Formal language is the kind of language you find intextbooks, reference books, and in business letters. You would also use formal English incompositions and essays that you write in school. Informal language is used in conversationwith colleagues, family members and friends, and when we write personal notes or letters toclose friends.

　　Formal language is different from informal language in several ways. First, formal languagetends to be more polite. What we may find interesting is that it usually takes more words to bepolite. For example, I might say to a friend or a family member. Close the door, please. but toa stranger, I probably would say, Would you mind closing the door?

　　Another difference between formal and informal language is some of the vocabulary. There arebound to be some words and phrases that belong in formal language and others that areinformal. Lets say that I really like soccer. If Im talking to my friend, I might say m justcrazy about soccer! But if I were talking to my boss, I would probably say I really enjoysoccer.