概要写作专练答案提供详尽解析，旨在指导考生拓展写作思路，提升写作能力。
概要写作专练(一)A(2018·浙江省名校联盟第三次联考)阅读下面短文，根据其内容写一篇60词左右的内容概要。
Some years ago, writing in my diary used to be a usual activity.I would return from school and spend the expected half hour recording the day’s events, feelings, and impressions in my little blue diary. I did not really need to express my emotions by way of words, but I gained a certain satisfaction from seeing my experiences forever recorded on paper. After all, isn’t accumulating memories a way of preserving the past?When I was thirteen years old, I went on a long journey on foot in a great valley, wellequipped with pens, a diary, and a camera. During the trip, I was busy recording every incident, name and place I came across. I felt proud to be spending my time productively, dutifully preserving for future generations a detailed description of my travels. On my last night there, I wandered out of my tent, diary in hand. The sky was clear and lit by the glare of the moon, and the walls of the valley looked threatening behind their screen of shadows. I automatically took out my pen ... At that point, I understood that nothing I wrote could ever match or replace the few seconds I allowed myself to experience the dramatic beauty of the valley. All I remembered of the previous few days were the dull characterizations I had set down in my diary.Now, I only write in my diary when I need to write down a special thought or feeling. I still love to record ideas and quotations that strike me in books, or observations that are particularly meaningful. I take pictures, but not very often — only of objects I find really beautiful. I’m no longer blindly satisfied with having something to remember when I grow old. I realize that life will simply pass me by if I stay behind the camera, busy preserving the present so as to live it in the future.I don’t want to wake up one day and have nothing but a pile of pictures and notes. Maybe I won’t have as many exact representations of people and places; maybe I’ll forget certain facts, but at least the experiences will always remain inside me. I don’t live to make memories —I just live, and the memories form themselves.一、试题详解1．核心内容本文是一篇记叙文，全文共四段。
第一段讲述作者小时候喜欢写日记，每天忙着把各种日常生活及感受记录在本子上，积累记忆，保存过去。
第二段讲述作者13岁时的一次旅游经历，山谷的美丽使她/他意识到，应该学会当时当地去欣赏和体验世间万物，而不是一味地记录。
第三段主要讲述了作者写日记的方式发生了改变，现在只把自己特殊的想法或情感有选择地写在日记中。
第四段是作者对生活的感悟：把握现在，感受今天；生活，重在感受而不是为了回忆而记忆。
2．写作思路(1)理清文章脉络，概括段落大意。
该文第一段围绕着首句“Some years ago, writing in my diary used to be a usual activity.”讲述几年前，作者每天忙于记录日常生活感受，事无巨细等。
第二段讲述作者在写日记一事上的转变，全段没有主题句，因此可围绕change一词将本段大意概括为“The author’s attitude towards the diary changed after a trip to a valley.”。
第三段围绕首句“Now, I only write in my diary when I need to write down a special thought or feeling.”详细讲述作者改变写日记方式后的相关情况，她/他开始有选择地在日记中记录自己的感想体会。
第四段是作者的感悟，即“I don’t live to make memories —I just live, and the memories form themselves.”。
(2)确定表达要点，灵活准确表达。
要点1是对第一段内容的归纳，同时为使句意更加完整清晰，可适当补充细节，例如，写日记是为了储存记忆。
要点2是对第二段内容的概括，即作者写日记方式变化前后的对比。
要点3承接着要点2，是对作者改变写日记方式后的具体描述，可以使用thus衔接。
要点4是最后一段中作者的感悟。
二、参考范文The author had made it a routine to keep a detailed diary of her/his everyday life to store memories.(要点1) That changed after a trip to a valley, where she/he realized breathtaking scenery was meant to be felt with heart rather than written down mechanically.(要点2) Thus, she/he has become selective about what to put in her/his diary, (要点3) focusing on the present instead of busying herself/himself with recording memories for the past or the future.(要点4)三、范文解析要点1中，“made it a routine”准确地表达了作者每日像例行公事般地记日记的状态，用目的状语“to store memories”补充信息，使要点信息更全面。
要点2中，非限制性定语从句“where ...”的使用明确了作者改变写日记方式的原因，同时用breathtaking替换原文的dramatic，避免词汇的重复。
要点3由Thus一词引出作者现在写日记的方式，即“become selective about what to put in her/his diary”，同时通过非谓语结构“focusing on ... instead of busying ...”把要点4准确地表达出来，使得句与句之间衔接紧凑，语言精练。
B阅读下面短文，根据其内容写一篇60词左右的内容概要。
Group singing is a sound that begins inside you, shares it with a roomful of people and it comes back as something even more thrilling: harmony. So it’s not surprising that group singing is on the rise.As the popularity of group singing grows, science has been hard at work trying to explain why it has such a calming yet energizing effect on people. What researchers are beginning to discover is that singing is like a filling of the perfect tranquilizer (镇静剂), the kind that both eases your nerves and lifts your spirits. The high spirits may come from endorphins, a hormone (荷尔蒙) released by singing, which is associated with feelings of pleasure. Or it might be from oxytocin, another hormone released during singing, which has been found to ease anxiety and stress.Oxytocin also strengthens feeling of trust and bonding, which may explain why still more studies have found that singing lessens feelings of depression and loneliness.The benefits of singing regularly seem to be accumulative. In one study, singers were found to have lower levels of stress. Another investigation suggesting that our heart rates may keep pace with each other during group singing could also explain why singing together sometimes feels like a guided group meditation. Study after study has found that singing relieves anxiety and contributes to quality of life.It turns out you don’t even have to be a good singer to gain the rewards.According to one study, group singing “can produce satisfying and therapeutic feelings even when the sound produced by the mouth is of average quality”．Singing groups which vary from casual affairs to serious, professional or a vocational ones will all work.Group singing is cheaper than medical treatment, healthier than drinking, and certainly more fun than working out. It is the one thing in life where feeling better is pretty much guaranteed. Even if you walked into the group exhausted and depressed, by the end of the night you’ll walk out high as a kite on endorphins and good will.一、试题详解1．核心内容本文是一篇说明文，全文共分五段。