第一篇：上海市17区县2013届高三数学一模分类 专题十八 虚数 文
专题十八 虚数
i
（虹口区2013届高三一模）
7、关于z的方程i
i
则方程的解z．
7、12i；
0120z，i2i2013（其中i是虚数单位）z
(2i)(（黄浦区2013届高三一模 文科）3．若z1的值为．3．2；i)a(i为虚数单位)为纯虚数，则实数a
（闸北区2013届高三一模 文科）1．已知(ai)22i，其中i是虚数单位，那么实数
a．
一、1．1；
第二篇：北京市各区2012年高考数学一模试题分类解析(15) 推理与证明 文
十五、推理与证明（选修2-2）
16．（2012高考模拟文科16）观察下列等式：
1=113=1
1+2=313+23=9
1+2+3=613+23+33=36
1+2+3+4=1013+23+33+43=100
1+2+3+4+5=15 13+23+33+43+53=225
…
可以推测：13+23+33+…+n3=。（nN*,用含有n的代数式表示）答案：n2(n1)2
4；
用心爱心专心 1
第三篇：上海市各区2014届高三数学一模试题分类 推理与证明、新定义(理)
上海市各区2014届高三数学（理科）一模试题分类汇编
2014.01.26
（嘉定区2014届高三1月一模，理）11．在平面直角坐标系中，动点P到两条直线3xy0与x3y0的距离之和等于4，则P到原点距离的最小值为_________．
11．2
2（杨浦区2014届高三1月一模，理）3．若行列式2x
11420，则x3.2；
（嘉定区2014届高三1月一模，理）14．某种平面分形图如下图所示，一级分形图是一个边长为1的等边三角形（图（1））；二
级分形图是将一级分形图的每条线段三等分，并以中间的那一条线段为一底边向形外作 等边三角形，然后去掉底边（图（2））；将二级分形图的每条线段三等边，重复上述的 作图方法，得到三级分形图（图（3））；…；重复上述作图方法，依次得到四级、五级、…、n级分形图．则n级分形图的周长为__________．
……
图（1）
n1图（2）图（3）414．33
（徐汇区2014届高三1月一模，理）3.计算：21224=.3432
（徐汇区2014届高三1月一模，理）11.某人5次上班途中所花的时间（单位：分钟）分别为x,y,10,11,9.已知这组数据的平均数为10，方差为2，则xy的值为.
第四篇：凯文老师,2018年上海高三高考英语一模试卷(中译英1)
2018届上海市各区高三英语一模试题分类汇编：中英翻译
2018年上海市虹口区高三英语一模试卷 V.Translation
Directions: Translate the following sentences into English, using the words given in the brackets.72.熬夜大大影响健康。(affect)
73.等他明年回来，这个体育馆就建好了。(by the time)
74.从长远来看，你的知识面越广，就越有能力应付工作中的问题。(capable)
75.据信，过分溺爱孩子会不知不觉地造成孩子的坏脾气，甚至缺乏自理能力。(It)
Keys: 72.Staying up late affects one’s health greatly.73.By the time he comes back next year, the stadium will have been set up.74.In the long run, the wider range of knowledge you have, the more capable you are of dealing with the problems at work.75.It is believed that spoiling children too much may unconsciously cause their bad temper, even the lack of ability to take care of themselves.2018年上海市黄埔区高三英语一模试卷 V.Translation
Directions: Translate the following sentences into English, using the words given in the brackets.72.选举的结果很快便在全世界传播开了。(spread)
73.警察告知了他们那场导致他们儿子受伤的交通事故。(which)
74.太多的数据会使我们很难判断错误是由哪个数据引起的。(difficult)
75.任何处理复杂问题的人都可能因为没有全面了解挑战而受到指责，虽然事先了解一切是 1 2018届上海市各区高三英语一模试题分类汇编：中英翻译
不可能的。(blame)Keys: 72.The result of the election spread rapidly all over the world.73.The police informed them of the accident which resulted in their son’s injury / in which their son got injured.74.Too many data make it difficult for us to determine which one has caused the error.75.Anyone dealing with a complicated problem may be blamed for not fully understanding the challenge, though it’s impossible to know everything in advance.2018年上海市浦东新区高三英语一模试卷 V.Translation
Directions: Translate the following sentences into English, using the words given in the brackets.72.为了安全起见，小孩不应该被单独留在家里。(leave)
73.深深吸了一口气，他面带微笑地走上了舞台。(with)
74.一个人待人处世的方式能反映出他是怎样的人。(the way)
75.只有当一系列奇数问题得到解决，到 2025 年，新能源汽车才能占汽车销量的百分之二十。(Only)
Keys: 72.For the sake of safety/ For safety, children / a children should not be left alone at home 73.Having taken a deep breath, he went up to the stage with a smile on his face.74.The way a person treats others can reflect what kind of person he is.75.Only when a series of technical problems are solved can new energy cars account for 20 percent of all the car sales by 2025.2018届上海市各区高三英语一模试题分类汇编：中英翻译
2018年上海市长宁区嘉定区高三英语一模试卷 V.Translation
Directions: Translate the following sentences into English, using the words given in the brackets.72..让我大吃一惊的是他的态度转变的如此之快。(sudden)
73..除非你在一周内给我满意的答复，否则我将诉诸法律。(Unless)
74..出国留学有助于学生学习外语和了解外国文化，但学生应该考虑可能遇到的困难。(consideration)
75..研究表明，当人们有压力时，看看有趣的电影或向朋友倾诉是排遣恐惧和悲伤的有效方法。(get)Keys:
72.What surprised me most is/was his sudden change of attitude/the sudden change of his attitude.73.Unless I receive a satisfactory response/reply from you in/within a month, I shall/will/am going to submit this case to the court/sue you in a law court/go to court/take legal action.74.Studying abroad/Overseas studies/Going abroad for/to(further)study can help students(to)learn foreign languages and know about foreign cultures, but students should take the difficulties/difficulty(that)they may/might meet with into consideration.75..A study/Research shows/illustrates that when people feel/are depressed/are under pressure, watching an interesting/a funny movie or talking to a friend(s)is an effective way to get rid of fear and sadness/sorrow.2018年上海市徐汇区高三英语一模试卷 V.Translation Directions: Translate the following sentences into English, using the words given in the brackets.72.今晚的音乐会门票已全部售罄。(sell)
2018届上海市各区高三英语一模试题分类汇编：中英翻译
73.我们若不齐心协力, 将无法战胜对手。（unless）
74.令人宽慰的是，爆炸发生时碰巧车间里没有人。(happen)
75.由于中国教育取得的巨大进步，中国已成为最受海外学生欢迎的留学目的地之一。(Due to)Keys:
72.Tickets for tonight’s concert have already been sold out.73.We won’t be able to beat the opponents unless we work together.74.To our relief, nobody happened to be in the workshop when the explosion occurred.75.Due to the significant progress made in Chinese education, China has become one of the most favored places for overseas students.2018年上海市闵行区高三英语一模试卷 V.Translation
Directions: Translate the following sentences into English, using the words given in the brackets.72.这个专家所推荐的方法被证明是十分有效的。（prove)
73.对国家来说，保护生态环境和保持经济增长同样重要。（as...as)
74.如果有朝一日，学生能亲自参与到课程开发中，那该有多棒啊！（involve)
75.这本新发行的杂志不仅会影响青少年对时尚的看法，还会开启健康饮食的新潮流。(Not only)
Keys:
72.The method recommended by the expert proved(to be)very effective.73.For/To a country, protecting theenvironment is as important as maintaining economic growth.74.How great it is if one day students can be involved in the development of courses on their own.75.Not only will the newly-released magazine influence teenager's opinions on fashion, but also it 4 2018届上海市各区高三英语一模试题分类汇编：中英翻译
will start a new trend towards a healthy diet.2018年上海市奉贤区高三英语一模试卷 V.Translation Directions: Translate the following sentences into English, using the words given in the brackets.72.这个城市近几年来发生了翻天覆地的变化。(take place)
73.毫无疑问，一旦被那可怕的疾病传染，随后肯定会死亡。(once)
74.整个球队只有互相配合，才能取得成功，这是那次以足球赛上申花队赢球的原因之一。(only)
75.对志愿者来说，重要的不是能为别人做多少，而是能从中获得宝贵的经验和帮助他人的快感。(not...but....)
Keys: 72.Great changes have taken place in the city in the past several years.73.Without doubt, once you are infected with the terrible disease, you are sure to die shortly after.74.Only by cooperating with each other can the whole team succeed and that is one of the reasons why Shanghai Shenhua football team won the math that time.75.What matters to volunteers is not how much they can do for others but that they can gain valuable experience and joy of helping other people.2018年上海市静安区高三英语一模试卷 V.Translation
Directions: Translate the following sentences into English, using the words given in the brackets.72.遵循自然规律,你最终会得到回报。(reward)
73.应加大力度打击劣质商品的生产和销售。(fight)5 2018届上海市各区高三英语一模试题分类汇编：中英翻译
74.每个学生都具有无限的潜能去克服学习中的困难，不断进取。(study)
75.有些技术创新虽没怎么引起公众的注意，却对现实生活的方方面面有着深远的影响。(although)
Keys: 72.Follow the natural law and you will finally be rewarded.73.The intensity of the fight against the manufacturing and sale of inferior goods should be increased.74.Every student has unlimited potential to overcome difficulties in study and keep making progress.75.Although some technical innovations have attracted little public attention, they have more far-reaching influence on real life in every regard.
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