It is no good on dwelling the past. Whatexisted or happened in the past may have been beautiful or exciting and may nowbring profound and precious memories, but the past is dead, and it is nothealthy for living spirits to linger over a world inhabited by ghost. The pastmay also be a place of horror, of regret, of spilled milk, of unfortunate deedsthat cannot be undone, of sad words like "might have been." However,it is painful and pointless to fixate on a period that cannot be relieved orrepaired. It is unproductive self-punishment. The past must be kept in itsplace, outlive and outgrow.
It is also useless to worry about thefuture. Why fly to heaven before it′s time? What anxious visions haunt peoplewho think too much about the future? They may envision the horrible mushroomcloud; the earth shriveling from radiation; the over-populated, abused earthgone dead. They may imagine their own lives going awry; appointments missed;advancements given to someone else; their houses burned to the ground; theirloves lost; everything in their lives, as in a nightmare, slipping away. Thereis no end to the disasters people can worry about when focusing anxiously onthe future. There are events in the future, including their own deaths, overwhich they have little or no control, but which can ruin their lives if theyworry about them. There are some disasters they may be able to prevent, butthey must do that by living well in the present, not simply by worrying aboutthe future.
The present moment, which is even now movinginto the past, is the only reality I know, and I don′t want to miss it. Thewild cherry cough drop dissolving in my mouth is sweet and soothing. Even mysore throat and backache have meaning. The cool night air, the cracking noiseof my furnace, my cat yawning and stretching--these are the tangible realitiesI can recognize. They exist in this moment, together with my own breathing, thewarm lamp overhead, the jerking of my typewriter. Along with these are th
推断题。定位至第一段，根据此处前后文可知，虽然过去的事有快乐的，也有痛苦的，但是沉迷过去是痛苦且没有意义的。故选D。
我国保护少年儿童权益的专项法律是《中华人民共和国未成年人保护法》。（ ）
MP3（ ）。
计算机软件是指（ ）。
下面哪一项不属于维护交易安全原则的内容？（ ）
围绕《建国以来的重大科技成就》一课，做一个教案。
请围绕“城乡发展一体化”写一篇小论文，题目自拟，角度不限，要求：结构完善、条理清晰、有说服力。
在国际关系中，第三世界国家历来是中国团结合作的对象，因为 ①第三世界国家是国际社会一支重要的政治力量 ②团结第三世界国家符合中国的国家利益 ③合作是第三世界国家共同发展的必由之路 ④第三世界国家在南北关系中处于主导地位（ ）
微观经济学要解决的问题是（ ）
机关文书部门或业务部门在年终或第二年上半年对归卷的文件材料进行整理等工作，称为（ ）。
20世纪70年代中国外交有了重大突破和转机，转变的关键是（ ）
