Four Ways to Give Truly Meaningful Gifts

    Buying someone you love a gift that expresses your truest feelings isn't always easy. But when you get it right, the joy they show is worth it. ____

    Listen up.

    While you may think it's a great idea to surprise someone by giving them something you think is meaningful, it's best to get them exactly what they have told you. For example, you heard friends say they wanted the newest bike but you bought them a gym membership instead. ____ So get them what they've specially asked for.

    ____

    In the spirit of showing love, we might go big. However, we may not be thinking of what really makes the person happy. You might think buying your father the latest TV is perfect, but then when you get it home, it lights up the living room like a stadium and is totally wrong for the space. So think smart.

    Keep it open.

    Many of us may consider giving cash impersonal（没人情味的）. But this may save you some concern. The receiver can be allowed to choose whatever they want. In a recent survey of over 7,000 Black Friday shoppers, 39 percent said the receiver they were shopping for was “picky（挑剔）”. ____

    Create an experience.

    Visit websites where you can get the latest tickets for a play, buy a surf lesson, or even something unexpected like a flight lesson. ____ For example, if your kids are into NASCAR, just imagine the look on their faces when you score them a ride at a race car driving school. So give them a time that they will remember to heart.

阅读下面的文言文，完成下列各题。

    舜发于畎亩之中，傅说举于版筑之间，胶鬲举于鱼盐之中，管夷吾举于士，孙叔敖举于海，百里奚举于市。

    故天将降大任于是人也，必先苦其心志，劳其筋骨，饿其体肤，空乏其身，行拂乱其所为，所以动心忍性，曾益其所不能。

    人恒过，然后能改；困于心，衡于虑，而后作；征于色，发于声，而后喻。入则无法家拂士，出则无敌国外患者，国恒亡。

    然后知生于忧患，而死于安乐也。

Dear Daming，

    Thanks for your letter and the wonderful photos. I like them very much.

Here are some of my photos. I'm sending them to you . In the first photo，it is snowing. I'm making a snowman with my friends. In the second one，the sun is shining and the wind is blowing. I'm flying a kite in the park. In the third one，I'm swimming in the sea. In the last one，I am with my sister Lucy. We're playing chess.

Best wishes to you and your family.

Love，

Jack

根据书信内容选择正确答案。

给出定义：若m－$\frac{1}{2}$＜x≤m＋$\frac{1}{2}$（其中m为整数），则m叫做离实数x最近的整数，记作{x}，即{x}=m，在此基础上给出下列关于函数f(x)=x-{x}的四个命题：
①y=f(x)的定义域是R，值域是(－$\frac{1}{2}$, $\frac{1}{2}$；
②点(k,0)$\left(k\in Z\right)$是y=f(x)的图像的对称中心；
③函数y=f(x)的最小正周期为1；
④函数y=f(x)在(－$\frac{1}{2}$, $\frac{3}{2}$上是增函数；
则其中真命题的个数为(   )

阅读下文，回答相关问题。
                                                                                     《吕蒙传》节选
        吕蒙字子明，汝南富陂人也。少南渡，依姊夫邓当。当为孙策将，数讨山越。蒙年十五六窃随当击贼当顾见大惊呵叱不能禁止。归以告蒙母，母恚欲罚之，蒙曰：“不探虎穴，安得虎子？”母哀而舍之。
         鲁肃代周瑜，过蒙屯下。肃意尚轻蒙，或说肃曰：“吕将军功名日显，不可以故意待也，君宜顾之。”遂往诣蒙。酒酣，蒙问肃曰：“君受重任，与关羽为邻，将何计略，以备不虞^①？”肃造次^②应曰：“临时施宜。”蒙曰：“今东西虽为一家，而关羽实虎熊也，计安可不豫定？”因为肃画五策。肃于是越席就之，拊^③其背曰：“吕子明，吾不知卿才略所及乃至于此也。”（节选自《三国志·吴志·吕蒙传》，有改动）
       【注】①虞：意料，预料。  ②造次：鲁莽，轻率。  ③拊（fǔ）：抚摩。