In most languages, a greeting is usually followed by "small talk". Small talk means the little things we talk about at the start of a conversation. In English-speaking countries people often make small talk about the weather: "Nice day isn't it?" "Terrible weather, isn't it?" But there is something special about small talk. It must be about something that both people have the same opinion about. The purpose of small talk is to let both people agree on something. This makes meeting people easier and more comfortable. People usually agree about the weather, so it is a safe topic for small talk. But people often disagree about religion or politics so these are not suitable topics for small talk in English. The topics for small talk also depend on where the conversation is taking place. At football matches, people make small talk about the game they are watching, "Great game, isn't it?" At bus-stops, people may comment about the transport system, "The bus service is terrible, isn't it?"

    Greetings and small talk are an important part of conversation in any language. The way people greet each other and the things they talk about, however, may be different from one language to another. This shows that there is much more to learn when we learn a language than just the vocabulary and the grammar of the language. We also have to learn the social behavior of the people who speak it.

现在家里的剩菜剩饭可以用保鲜膜包起来短时间储存，保鲜膜的保鲜作用体现在（ ）

19世纪中期，为促进资本主义经济发展而走上资本主义道路的事件有(　　)

①明治维新       ②罗斯福新政  ③美国南北战争    ④俄国1861年改革

    “Early to bed, early to rise（起身）makes people healthy, wealthy and wise（健康，富有，聪明）.” This is an old English saying. Children should have ten hours' sleep every night, or they can't do their work very well. They will not be wise. The body needs exercise. Walking, running, swimming and playing ball games are all exercise. Exercise keeps the body strong.