题干

下列说法正确的是(   )

A:任何物质的饱和溶液,当温度升高时,都变成不饱和溶液

B:某物质的溶液,当温度升高时,若溶液的质量不变,则溶液的浓度也不变

C:某物质的不饱和溶液,当温度降低时,有晶体析出,变成饱和溶液,但浓度不变

D:饱和溶液就是浓溶液,不饱和溶液就是稀溶液

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B

同类题2

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获得教养的途径(节选)

赫尔曼·黑塞

    ①为获得真正的教养可以走不同的道路。最重要的途径之一,就是研读世界文学,就是逐渐地熟悉掌握各国的作家和思想家的作品,以及他们在作品中留给我们的思想、经验、象征、幻象和理想的巨大财富。这条路永无止境,任何人也不可能在什么时候将它走到头;任何人也不可能在什么时候将哪怕仅仅只是一个文化发达的民族的全部文学通通读完并有所了解,更别提整个人类的文学了。然而,对每一部思想家或作家的杰作的深入理解,却都会使你感到满足和幸福——不是因为获得了僵死的知识,而是有了鲜活的意识和理解。对于我们来说,问题不在于尽可能地多读和多知道,而在于自由地选择我们个人闲暇时能完全沉溺其中的杰作,领略人类所思、所求的广阔和丰盈,从而在自己与整个人类之间,建立起息息相通的生动联系,使自己的心脏随着人类心脏的跳动而跳动。这,归根到底是一切生活所赋予的意义,如果活着不仅仅为了满足那些赤裸裸的需要的话。读书绝不是要使我们“散心消遣”,而是要使我们集中心智;不是要用虚假的慰藉来麻痹我们,使我们对无意义的人生视而不见,而是正好相反,要帮助我们将自己的人生变得越来越充实、高尚,越来越有意义。

    ②世界文学的辉煌殿堂对每一位有志者都敞开着,谁也不必对它收藏之丰富望洋兴叹,因为问题不在于数量。有的人一生中只读过十来本书,却仍然不失为真正的读书人。还有人见书便生吞下去,对什么都能说上几句,然而一切努力全都白费。因为教养得有一个可教养的客体作前提,那就是个性或人格。没有这个前提,教养在一定意义上便落了空,纵然能积累某些知识,却不会产生爱和生命。没有爱的阅读,没有敬重的知识,没有心的教养,是戕害性灵的最严重的罪过之一。

    ③当今之世,对书籍已经有些轻视了。为数甚多的年轻人,似乎觉得舍弃愉快的生活而埋头读书,是既可笑又不值得的;他们认为人生太短促、太宝贵,却又挤得出时间一星期去泡六次咖啡馆,在舞池中消磨许多时光。是啊,“现实世界”的大学、工场、交易所和游乐地不管多么生气蓬勃,可整天呆在这些地方,难道就比我们一天留一两个小时去读古代哲人和诗人的作品,更能接近真正的生活吗?不错,读得太多可能有害,书籍可能成为生活的竞争对手。但尽管如此,我仍然不反对任何人倾心于书。让我们每个人都从自己能够理解和喜爱的作品开始阅读吧!但单靠报纸和偶然得到的流行文学,是学不会真正意义上的阅读的,而必须读杰作。杰作常常不像时髦读物那么适口,那么富于刺激性。杰作需要我们认真对待,需要我们在读的时候花力气、下功夫。

同类题4

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    The wedding tradition of “something old, something new, something borrowed and something blue” has been around for hundreds of years. The tradition of carrying or wearing one of each item is said to bring luck and fortune to the newly married couple. Have you ever stopped to think what the saying really means? What is its origin and what does each item represent?

    The original saying dates back to the Victoria times and states, “something old, something new, something borrowed, something blue and a silver sixpence in your shoe.”

    Something old   A bride may wear or carry something old to represent her continued ties to her family and her old life. Many brides wear a piece of family jewelry as their old item. Some brides wear the wedding dress worn by their mother or grandmother. In many cases, something old may also be something borrowed.

    Something new   Wearing something new is supposed to represent success and hope in the bride's new life and in her marriage. If the bride purchased her wedding dress new, it may represent her new item, but any item that is new may be used. Something “new” is usually the easiest kind to fill.

    Something borrowed   The borrowed item should be something borrowed from a friend that is happily married. It is said that their happiness will rub off on you and bring lasting happiness to your marriage. Some brides borrow an item of clothing, a piece of jewelry, a handkerchief or perhaps a beaded(带珠子的) purse.

    Something blue Wearing something blue dates back to ancient times when a blue wedding dress was worn to represent purity, fidelity and love.

    Silver sixpence   Placing a silver sixpence in the bride's left shoe is said to be a symbol of wealth. This not only refers to financial wealth, but also a wealth of happiness and joy throughout her married life. Since most brides probably don't even know what a sixpence is, this part of the tradition is not used very often in modern times. However, if a bride would like to include it in her wedding, she can purchase a silver sixpence from many companies that sell bridal supplies such as garters(袜带) and invitations.