错题再现4
小学数学一年级上册第五单元《6—10的认识和加减法》错例分析
一年级上册第五单元 6—10的认识和加减法错例一【错例来源】教材第48页第4题第1幅图【错题再现】【题意解读】通过读图，定位问号的位置，从而分析题目要求的是整体还是部分，是用加法还是减法，最后通过反思解决问题的过程来检查验证计算结果的正确性。
这道题已知大括号6个，左部4个，右部有问号，是典型的已知总数，求部分的问题。
【情况分析】大约有19人出错，上课不认真听讲，回去没有巩固复习的、理解能力比较慢或者无法理解的、做题目比较粗心又没有检查的这些学生错误率最高。
1.数数错误。
原因分析：数数的方法没有掌握，没有养成数数划圈、划线的习惯，从而出现6-5=1或者6-3=3此类的错误。
2.计算错误。
原因分析：没能理解加法、减法的含义，没有掌握科学的计算方法，平时在家里缺少家长的监督，没有重点专门、持之以恒地训练计算，导致口算窍门一直找不到。
有许多学生还是用手指算的，到底是不是最适合自己的不清楚。
数的组成没有科学地迁移到加减法中，以至于出现6-4=1或者6-3=2之类的错误算式。
3.不理解题意。
原因分析：这部分学生可能是因为找不到题目给出的有效信息，致使不能用语言清晰的表述图中的意思；或者对于大括号和问号的位置所表明的含义存在混淆；或者表述出来的意思和算式相矛盾，答非所问；又或者不理解题目要解决的是什么问题，盲目看数乱写算式。
所以出现了很多让人啼笑皆非的错误，比如：6-2=4, 4+6=10,4+2=6等。
【教学提示】针对以上错误，我分不同类型进行纠正。
1.科学数数数数一定要按照一定的顺序数，不能随便乱数，并且要遵循从上到下，从左到右的顺序数。
可是问题来了，有些物体的位置不上不下，不左不右，看上去乱糟糟的，似乎这个顺序数数方法也会带来一定的问题，针对这种排列无规则的图形，数数还要采取划一划或圈一圈的有效策略，数一个，划或圈一个，心里依次默念数字，可以避免数数错误。
在后面的教学中，可以渗透快速数数思想：2个2个地数，3个3个地数，5个5个地数，完善思维的严密性与发散性。
unit4 错题
错题集锦Unit4选择题( ) 1.---Deng Ming runs fastest_____all the students. ---Yes,he really does.A.forB. ofC. at 解析：_______________________________( ) 2.---What do you want to be after you leave school?---I want to be a_____to tell the common people the truth.A.dentistB. doctorC. reporter 解析：____________________________( ) 3.This schoolbag is not expensive. And the price of it is the of the three.A.lowestB. biggestC. highest 解析：__________________________( ) 4. ---Tom, what do you think of the school?--- Oh, no other school is in the city. It’s one.A.better, a betterB. the best, the bestC. better, the best解析：________________________________________________________( ) 5.Of the three pencil boxes , the boy chose _____ one .A.less expensiveB.the most expensiveC. the less expensive解析：________________________________________________________( ) 6..I think ______is always interesting_______ others show their talents.A it; to watchB it; watchingC that; to watch解析：________________________________________________________( ) 7.Autumn is coming. The weather is getting_______.A cool and coolB the cooler and coolerC cooler and cooler解析：________________________________________________________( ) 8.I want to read the book. Can you _______?A give me itB give it to meC give it me解析：________________________________________________________( ) 9. Boys and girls, please read the papers carefully. ______ you are, _____grades you can get.A.The more carefully; the betterB.The most careful; the best.C. The more careful; the better解析：________________________________________________________( ) 10.—Millie, where is Miss Li?—She is ______ a speech on Chinese art to the first-year students in the hall.A.givingB.listeningC. talking 解析：_____________________________( ) 11.—Does your friend live in _____ town? —No, he lives in _____ countryside.A./ ;/B. /; theC. the ; the 解析：___________________________________( ) 12.She is the second _______ student in the class.A.shortestB. shortC. the shortest 解析：_________________________( ) 13. Amy sings the best_____ us.A.forB.intoC. of 解析：_____________________________( )st year, Amy and Danny joined the show, but I didn’t._____ of them practiced hard before the show.A.OtherB. BothC. All 解析：_________________________( ) 15. I saw a little boy ___ when I walked along the river.A.swimB. swimmingC. to swim 解析：___________________( ) 16. ---Is Jack in the next room?---Well, it’s hard to say. But I heard him ___ loudly when I passed by just now.A.speakB. speakingC. to speak 解析：_______________________________________( ) 17. The mother often likes to watch her baby ____ with a ball.A.playB. to playC. playing 解析：________________________( ) 18.Emily has _____ talent for music and she always plays ____ role in her school’s art festival.A.a; aB. a; theC. the; a 解析：________________________( ) 19. Su Bing lived closest ____ the theater, so he can easily buy the tickets ___ the movie Us and Them.A.in; forB. in; fromC. to; for解析：____________________________________________________________( ) 20.—Is _____ here now, Leo?—No, Wendy isn’t here. She is running on the playground.A.somebodyB. anybodyC. everybody 解析：________________________( ) 21. London is one of the largest cities in the world. What other ____ do you know about it?A.resultsB. ideasC. facts 解析：________________________( ) 22. The city is ___ in the day. But at night it is a different______.rge ; timeB. crowded; placeC.dark; time 解析：________________________( ) 23. If the City is the “money” of London, and the West End is the “goods” of London, _____ the East End is the “hands” of London.A.andB. orC. then 解析：______________________________词汇1.Moon Cinema has the most __________(comfortable）seats.I usually go there to watch movies.2.Yesterday his mother ________(choose) a red T-shirt.3.Which radio station ______(play) ________________(boring) songs?4.它有最大的座位，坐着最舒服。
高三英语2020学年第一学期错题整理四(逻辑和衔接)
树人中学2020学年第一学期高三英语错题整理（4 ）逻辑和衔接拓展班级：全段编制人：李小琴份数：320 日期：2020.12.3姓名：__________ 班级：__________ 总分：__________一，根据前后语境提示用合适单词填空（2018 江苏/ 练习13完型）（2020.1浙/练习12 完型）1，To make matters worse, Moth was diagnosed with a serious disease.There was no ______ ,only pain relief.2,They planned to keep the _______ low by living on boiled noodles,with the occasional hamburger shop treat.3,I was running so fast that I bounced off the trunk and 40 landed on my backside. Mom 41 _______ me to start crying, but I just sat there for a minute. Then I42 picked myself up and kept right on going.Mom always 43 added here that, as many times as I44_________across the lawn after that, I never again 45 ___________ into that tree.二，选择句子衔接前面所给句子（周考二+周考三+2020.7浙/练习5+2020温一模）( )1，I went upstairs, which was where we lived, above the restaurant.A:Fully dressed, I climbed under the covers of my bed and immediately got hot.B: Hearing Carmelita coming upstairs, I groaned for effect.( )2，The next evening before the contest, I spotted Carmelita standing alone and weeping._________A:The band began to play, signaling the start of the contest.B: At that, my stomach hurt.( )3，A few minutes later , the bear headed back to our camp._________A:With greater rage, the bear roared and tried to tear down the fence with all his strength.B: I gathered up my courage and tried to spray him again.( )4,“That’s it,” Amanda sped to her room.There on the bookshelf stood a book titled Chinese Nursery Rhymes with a CD inside. Sheer excitement in her heart, Amanda grabbed it and raced to Li’s room. “Ni hao,” she whispered.______. “Yi, er, san, si, wu,” sweet voices of children filled the room.A: Li was playing with a Barbie doll and didn’t scream.B: Amanda approached the CD player and slid the CD in.三划出下面考生的写作逻辑问题1处并给文章第二段4个句子排序.(周考三）Dear Tom,I am more than happy to know you are coming to China. I am writing to welcome you to have a vacation in my city.①Were I you, I’d first spend some days relaxing on the beach to get refreshed.②Having settling in the hotel or my home,you will find various fantastic things to do in my city.③As the weather here is always sunny and hot,so thick clothes is not needed for the trip.④After that, you can have several famous museums visited which is nearby the city center. 正确序号为：_____________________________________ Looking forward to seeing you soon.Yours,LiHua四，七选五错题整理之---(完成每篇语法填空中部分未做的题目）①段首35+段中题32(2018·6浙/练习12)Moving into a new home in a new neighborhood is an exciting experience. Of course, you want to make sure that you become an acceptable and valuable part of your neighborhood . the easiest way to accomplish this is to make sure you conduct yourself as a good neighbor should. ___31_GPerhaps one of the most important things you can do as a good neighbor is to keep your property(房产) neat, clean, and in good repair. _____32_ By choosing to keep the outside of the home in great shape, you will help to improve the look and feel of the area._____35__ _ By following the basic rules of respecting others, taking care of what belongs to you, and taking pride in the appearance of the neighborhood in general, you will quickly become a good neighbor that everyone appreciate.A. In general, keep an eye on their property while they are gone.B.A good neighbor is also one who likes to help out in small ways.C. Being a good neighbor is more or less about considerate behavior.D. Sometimes neighbors may go to the supermarket together to do shopping.E. Should you come across waste paper thrown out of a passing car, pick it up.F. People tend to lake pride in keeping everything in their street fresh and inviting.G. Here are a few tips to help you win over everyone in the neighborhood quickly②段中题38(2019·全国卷Ⅲ/练习10) In an online class，developing healthy patterns of communication with professors is very important._36.E__While I have only listed two of each，there are obviously many other situations that can arise.Students should be able to extend the logic(逻辑) of each to their particular circumstance.Do's•37.G Questions about subject content are generally welcomed.Before asking questions about the course design，read the syllabus(教学大纲) and learning management system information to be sure the answer isn't hiding in plain sight.•Participate in discussion forums(论坛)，blogs and other open－ended forums for dialogue._38.__Be sure to stay on topic and not offer irrelevant information.Make a point，and make it safe for others to do the same.A．That's what they are for.B．Turn to an online instructor for help.C．If more information is needed，they will ask.D．Remember that online professors get a lot of emails.E．Below are some common do's and don'ts for online learners.F．Everyone has taken a not－so－great class at one time or another.G．Ask questions，but make sure they are good，thoughtful questions.③段首33+段中34+段尾35 2019.6浙/练习933 They were not sure how the Americans would react to the new type of music. Beatlemania hit New York on February 7, 1964. Hundreds of fans jammed the airport to greet them. 34 The concert was broadcast live and attracted the largest one night audience in the history of television up to that time. The Beatles were described as a British invasion（入侵）by local and nationwide newspapers atthat time. Their victory in America was still remembered as a major turning point in the history of rock and roll. Thanks to the Beatles, a lot of opportunities were opened up to new faces on the market. 35A. They decided on a tour to the United States in 1964.B. Even their hairstyles became major trends at that time.C. Rock music developed in the 1950s and the early 1960s.D. However, their songs changed the lives of generations to come.E. Many rock bands were able to follow in the footsteps of the Beatles.F. They appeared in the films A Hard Day's Night（1964）and Help！（1965）.G. They performed their first concert in America at CBS television's 53rd street studio.二，代词指代31+32：④ 2020.7浙I experienced years of loneliness as a child. 31 His friends teased him about babysitting his sister and his interests were far different from mine. With no other kids of my age in the neighborhood，I had to spend hours by myself.A bright spot for me turned out to be reading. My love of the written word began early as my mother read to me every evening. 32 I started reading books on my own before age 5 and my mother took me to the public library once a week to borrow several books. I quickly graduated from typical children's books to ones with fewer pictures and longer chapters. Reading opened new worlds to me. 33 A .A. I wasn't alone any longer.B. I enjoyed reading stories aloud.C. I was invited to play with another kid.D. I loved the colorful photographs in the books.E. Another habit I formed early was being outdoors.F. Thus，I began my lifelong interest in making things.G. My older brother couldn't be bothered to play with me.三，逻辑31+33代词32⑤2020.1浙Let’s take a minute to think about the water we use. The human body is 60% water and we need to drink lots of water to be healthy When we are thirsty we just go to the kitchen and fill a glass with clean water.31 For example, farmers, who produce the food we eat, use water to make the plants grow. When we turn on a light or switch on a TV or a computer we use energy and we need water to produce this energy.The truth is that we are lucky enough to have clean water whenever we want, but this is not the case for many people around the world. 32 That’s around one in 10 people in the world. If we drink dirty water, we can catch diseases from the bacteria and become ill. Every year over 500,000 children die from diarrhoea（腹泻） from dirty water. That’s around 1,400 children every day! Also, in some countries children walk many kilometres every day to get water. 33 Therefore, they don’t have time to learn how to read or write and don’t get an education.A. We use water indirectly too.B. Every system in our body depends on water to function.C. It is to inspire people to learn more about water-related problems.D. If children walk many hours a day to get water: they can’t go to school.E. Did you know that around 750 million people do not have clean water to drink?F. In 1993 the United Nations decided that March 22nd is the World Day for Water.G. In this way, they know how it feels to walk a long distance carrying heavy bottles.⑥逻辑51+52 （2018北京/练习13）Why Do We Get Angry?Anger seems simple when we are feeling it, but the causes of anger are various. Knowing these causes can make us examine our behavior, and correct bad habits. The main reasons we get angry are triggering（触发）events, personality traits（特征）, and our assessment of situations. 51Triggering events for anger are so many that to describe them all would take hundreds of pages. However, here are some examples: being cut off in traffic, a deadline approaching, experiencing physical pain, and much more. 52 The reason why someone is triggered by something and others are not is often due to one’s personal history and psychological traits.E. Having these personality traits implies the pre-anger state, where anger is in the background of your mind.F. Understanding these reasons will control our own anger if we are willing to evaluate ourselves with a critical eye.G. Not everyone acts the same in response to events, and that is why what triggers one person may or may not trigger another.⑦逻辑31+33+同义词35 (2017·浙/练习15）How to Remember What You ReadReading is important. But the next step is making sure that you remember what you’ve read! 31 You may have just read the text, but the ideas, concepts and images(形象)may fly right out of your head. Here are a few tricks for remembering what you read.●Are you connected?Does a character remind you of friend? Don’t the setting make you want to visit the place? Does the look inspire you, and make you want to read more? With some books, you may feel a connection right away.33 How willing are you to make the connections happen?●How often do you read?If you read frequently, you’ll likely have and easier time with remembering what you’re reading(and what you’ve read). 35____As you make reading a regular part of your life, you’ll make more connections, stay more focused and understand the text better. You’ll learn to enjoy literature—as you remember what you read!B:Practice makes perfect.C. What’s your motivation?D.Memory is sometimes a tricky thingE.Marking helps you remember what you read.F. But other books require a bit more work on your partG. You can do the same thing when you are reading the text!。
错题重做——期中复习(4)(学生版11.6)
错题重做——期中复习（4）（11.6）一．解答题（共20小题）1．某出租车驾驶员从公司出发，在南北向的人民路上连续接送5批客人，行驶路程记录如下（规定向南（2）若该出租车每千米耗油0.2升，那么在这过程中共耗油多少升？（3）若该出租车的计价标准为：行驶路程不超过3km收费10元，超过3km的部分按每千米加1.8元收费，在这过程中该驾驶员共收到车费多少元？2．已知x=2，y=﹣1，求2[x2y﹣（x+1）]﹣3（x2y﹣2y）﹣6（y+）的值时，马虎同学将x=2，y=﹣1错抄成x=2，y=1，可结果还是正确的，马虎同学比较纳闷，请你帮助他揭开其中的迷雾，写出你的说明过程．3．如图，将连续的奇数1，3，5，7，…按图1中的方式排成一个数表，用一个十字框框住5个数，这样框出的任意5个数（如图2）分别用a，b，c，d，x表示．（1）若x=17，则a+b+c+d=．（2）用含x的式子分别表示数a，b，c，d．（3）直接写出a，b，c，d，x这5个数之间的一个等量关系：．（4）设M=a+b+c+d+x，判断M的值能否等于2010，请说明理由．4．现有4枚相同的骰子，骰子的展开图如图1所示，这4枚骰子摞在一起后，如图2，相互接触的两个面点数之和都是8，这4个骰子每个骰子都有一个面被遮住了，你能说出每个被遮住的面各是几个点吗？5．小明在学习了《展开与折叠》这一课后，明白了很多几何体都能展开成平面图形．于是他在家用剪刀展开了一个长方体纸盒，可是一不小心多剪了一条棱，把纸盒剪成了两部分，即图中的①和②．根据你所学的知识，回答下列问题：（1）小明总共剪开了条棱．（2）现在小明想将剪断的②重新粘贴到①上去，而且经过折叠以后，仍然可以还原成一个长方体纸盒，你认为他应该将剪断的纸条粘贴到①中的什么位置？请你帮助小明在①上补全．（3）小明说：他所剪的所有棱中，最长的一条棱是最短的一条棱的5倍．现在已知这个长方体纸盒的底面是一个正方形，并且这个长方体纸盒所有棱长的和是880cm，求这个长方体纸盒的体积．6．数轴是一个非常重要的数学工具，它使数和数轴上的点建立对应关系，解释了数与点之间的内在联系，它是“数形结合”的基础如图，数轴上有三个点A、B、C，它们可以沿着数轴左右移动，请回答：（1）将点B向右移动3个单位长度后到达点D，点D表示的数是，A、D两点之间的距离是；（2）移动点A到达E点，使B、C、E三点的其中某一点到其它两点的距离相等，写出点E在数轴上对应的数值；（3）若A、B、C三点移动后得到三个互不相等的有理数，即可以表示为1，a，a+b的形式，又可以表示为0，b，的形式，试求a，b的值．7．当式子|x+1|+|x﹣3|+|x﹣4|+|x+6|取最小值时，求相应x的取值范围，并求出最小值．8．（1）【问题发现】若a，b均不为零，求x=的值．（2）【拓展探究】若a，b，c均不为零，求x=+﹣的值．（3）【问题解决】若a，b，c均不为零，且a+b+c=0，直接写出代数式++的值．9.若|a|=19，|b|=97，且|a+b|=|a|+|b|，求a+b的值．10计算：﹣|﹣32|﹣（﹣3）3﹣（﹣﹣）×24．11．计算（1）﹣22×（﹣3）2﹣[5×（﹣3）+（﹣1）3] （2）﹣1÷（﹣4+）×（﹣3）+|﹣|12．“囧”（jiong）是最近时期网络流行语，像一个人脸郁闷的神情．如图所示，一张边长为20的正方形的纸片，剪去两个一样的小直角三角形和一个长方形得到一个“囧”字图案（阴影部分）．设剪去的小长方形长和宽分别为x、y，剪去的两个小直角三角形的两直角边长也分别为x、y．（1）用含有x、y的代数式表示图中“囧”的面积；（2）若|x﹣6|+（y﹣3）2=0时，求此时“囧”的面积．13．在“双十一”购物狂欢节后，快递员成为最忙碌的人群快递员A、B分别在甲、乙两家快递公司上班．两家快递公司的工资计算方式是：甲公司快递员月基本工资1600元，再加上每件1.2元计费，若当月工作量超过2500件时，2500件按每件1.2元计费，超出部分按每件1.8元计费；乙公司快递员没有月基本工资，按每件2元计费．（1）10月份，快递员A、B工作量都是2200件，请分别计算他们10月份工资分别是多少．（2）根据市场分析，11月份快递员A、B工作量都一定会超过2500件，设其工作量都是x（x＞2500）件，快递员A、B的工资分别为y A、y B，请用含x的代数式分别表示y A、y B．（3）若快递员A、B在某月的工资都是5500元，请通过计算说明谁的工作量大．14．A市、B市分别有联合收割机12台与6台，正值秋收季节，A市、B市政府决定将这18台机器支援给友好市C市10台，D市8台．以帮助C市、D市的农民收割农作物．已知从A市调运一台机器到C市与D市的运费分别是400元和800元，从B市调运一台机器到C市和D市的运费分别是300元与500元．求：①现设从B市调往C市的机器数为x，试用含x的代数式表示从B市调往D市，以及从A市调往C、D②接第①问，试用含x的代数式表示总运费．③运输方案如何安排，可使总运费最低？写出使总运费最低的运输方案，并求出这个最低运费．15．如图①是1个直角三角形和2个小正方形，直角三角形的三条边长分别是a、b、c，其中a、b是直角边．2个小正方形的边长分别是a、b．（1）将4个完全一样的直角三角形和2个小正方形构成一个大正方形（如图②）．用两种不同的方法列代数式表示图②中的大正方形面积：方法一：；方法二：；（2）观察图②，试写出（a+b）2，a2，2ab，b2这四个代数式之间的等量关系，为；（3）利用你发现的结论，求：9922+16×992+64的值．16．已知A=3a2b﹣2ab2+abc，小明同学错将“2A﹣B“看成”2A+B“，算得结果C=4a2b﹣3ab2+4abc．（1）计算B的表达式；（2）求出2A﹣B的结果；（3）小强同学说（2）中的结果的大小与c的取值无关，对吗？若a=，b=，求（2）中式子的值．17．已知有理数a和b满足多项式A，且A=（a﹣1）x5+x|b+2|﹣2x2+bx+b（b≠﹣2）是关于x的二次三项式，求（a﹣b）2的值．18．已知多项式2x3y﹣xy+16的次数为a，常数项为b，a，b分别对应着数轴上的A、B两点．（1）a=，b=；并在数轴上画出A、B两点；（2）若点P从点A出发，以每秒3个单位长度单位的速度向x轴正半轴运动，求运动时间为多少时，点P 到点A的距离是点P到点B的距离的2倍；（3）数轴上还有一点C的坐标为30，若点P和Q同时从点A和点B出发，分别以每秒3个单位长度和每秒1个单位长度的速度向C点运动，P到达C点后，再立即以同样的速度返回，运动的终点A，求点P 和点Q运动多少秒时，P，Q两点之间的距离为4，并求出此时点Q的坐标．19．已知多项式x3﹣3xy2﹣4的常数是a，次数是b．（1）则a=，b=；并将这两数在数轴上所对应的点A、B表示出来；（2）数轴上在B点右边有一点C到A、B两点的距离之和为11，求点C在数轴上所对应的数；（3）在数轴上是否存在点P，使P到A、B、C的距离和等于12？若存在，求点P对应的数；若不存在，请说明理由．（4）在数轴上是否存在点P，使P到A、B、C的距离和最小？若存在，求该最小值，并求此时P点对应的数；若不存在，请说明理由．20．已知多项式x3﹣3xy2﹣4的常数项是a，次数是b．（1）则a=，b=；并将这两数在数轴上所对应的点A、B表示出来；（2）数轴上有一点C到A、B两点的距离之和为11，求点C在数轴上所对应的数；（3）若A点，B点同时沿数轴向正方向运动．点A的速度是点B的2倍，且3秒后，使点B到原点的距离是点A到原点的距离的两倍，求点B的速度二．选择题（共2小题）21．设三个互不相等有理数，既可表示为1，a+b，a的形式，又可表示为0，，b的形式，则a2017+b2018的值为（）A．0 B．﹣1 C．1 D．222．按下面的程序计算：若输入x=100，输出结果是501，若输入x=25，输出结果是631，若开始输入的x值为正整数，最后输出的结果为531，则开始输入的x值可能有（）A．1种B．2种C．3种D．4种。
数学错题检讨书4篇
数学错题检讨书4篇数学错题检讨书1今天，我怀着愧疚和懊悔给您写下这份检讨书，以向您表示我对上作业写错的深刻认识以及一定会认真做作业的决心。
我对于我这次犯的错误感到很惭愧，我真的不应该把这么简单的作业写错，我不应该违背老师的规定，我们作为学生就应该完全的听从老师的话，而我这次没有很好的重视到老师讲的话。
我感到很抱歉，我希望老师可以原谅我的错误，我这次的悔过真的很深刻。
我要避免这样的错误发生，希望老师可以相信我的悔过之心。
相信老师看到我的这个态度也可以知道我对这次的事件有很深刻的悔过态度，我这样如此的重视这次的事件，希望老师可以原谅我的错误，我可以向老师保证今后一定会认真做作业的。
所以，老师把让我写检讨，也是为了让我深刻的认识到这点。
其次，不认真做作业也是一种对老师的工作不尊敬的表现。
中国是一个礼仪之邦，自古就讲究尊师重道，这是一种传统的美德，过去我一直忽视了它。
抛开着一层面，不单单是老师，无论对任何人，我们都应该尊重他，尊重他的劳动，他的劳动成果。
我这样做，直接造成了不尊重老师，不尊重他人，不尊重他人劳动的恶劣影响。
作为一名当代中学生，一名正在接受教育的人来说，这种表现显然不符合社会对我们的要求。
再次，我这种行为还在学校同学间造成了及其坏的影响。
同学之间本应该互相学习，互相促进，纪律良好，而我这种表现，给同学们带了一个坏头，不利于学校的学风建设。
同时，也对学校形象造成了一定损害，我们应该去维护而不是去破坏它！对于这件事情，所造成的严重后果我做了深刻的反思1。
影响个人综合水平的提高，使自身在本能提高的条件下为能提高。
如今错已铸成，我深感懊悔，深刻检讨自己的错误。
2。
思想觉悟不高，对错误的认识不足，试想如果当时我就认识到此事的严重性，错误就不可能发生。
之所有的问题都归咎于我还为能达到一个现代中学生应具有的认识问题水平，为能对老师的辛勤劳作作出回报，我越来越清晰的感觉到自己所犯的错误的严重性，为此，我一定会在以后的几年里更严格地要求自己，在认真完成作业，在上课的时候绝对不讲闲话地同时，使自己的言行都与一个现代中学生相符合。
四年级自制-超实用--错题集-错题本格式实用模板
错题重现：根据下图填空小红上学要走（）米，小丽上学要走（）米，小比小红近（）米。
错题重现：392+681+29+790+908 ===错题重现：解决问题。
新学期，学校课外活动小组招生。
各个组的招生人数如下表，这四个小组一共要招名学生。
错题重现：计算。
400－32÷8×26 ＝错题重现：6999999+599999+49999+3999+299+19+6 ===错题重现：100+99-98-97+96-95-……+4+3-2-1 ===错题重现：3724-(724-)-109-(391-337) ====错题重现：699999+69999+6999+699+69 ====错题重现：1573-(217+73)-183 ===错题重现：4329-962-387-1038-1613=4329-( +1038 )-( +1613) ====评讲时的切入点技巧、思维、算理数学错题集错题重现：645-268-32 === 错题重现：在空里填上“＞”“＜”或“=”。
37+500 500+37104+86+96 104+96+68325-142-52 325-（142-52）720-13+180-87 900-90错题重现：算一算，填一填。
从上面看，有个小形。
错题重现：算一算，填一填。
从右面看，有个小形错题重现：算一算，填一填。
从左面看，有个小形。
错题重现：判断对错。
从前面看立体图形，得到的平面图形是在空里填入“＞”“＜”或“＝”。
512×438511×439678×843679×842178×234179×233345×495344×496评讲时的切入点技巧、思维、算理错题重现：四年级420人去春游，大车每辆900元，小车每辆700元，怎样租车最省钱？如果租大车，要元。
如果全租小车，要元。
共要元。
错题重现：某小学积极开展“保护母亲河”活动，学校组织教师、家长和学生共130人乘车去郊外植树，大客车限乘客42人，每辆车每天租金200元；小客车限乘客24人，每辆车每天租金150元。
错题集(4).doc数学5
错题集4：范围：《金》、《册》、《口》、周练（四）、（五），堂练（三）计算部分：直接写出下列各题的得数：0.05×6.6×200= 12.5×7.3×0.08= 0.125×64= 0.125×72= 0.25×0.24= 0.25×4.8= (7+25)×0.4=8×(0.125+11)= 5×(0.2+13)= (100-1)×0.7=1.4-0.45=1-0.038= 1.2÷0.12=2.4÷0.02=1.2÷0.2= 1.8÷0.9= 4.8÷0.4= 1÷25=100×0.1-0.1÷0.01= 0.25×（0.3+0.4）= 0.32÷3.2=竖式计算12.43÷4.6=(商除到百分位，写出余数) 此题在解答时要注意：①题目要求是“商除到百分位”，哪怕百分位上是“0”也要把“0”写出来②从竖式看，表面上余数是“10”，但这个10实际表示的是10个0.01，即0.1，又因为此前列竖式时，把除数和被除数同时扩大了10倍，所以余数最后还要缩小10倍，即“0.01”。
15.3÷11= 要正确理解“循环节”的定义，它指的是“小数部分依次重复不断出现的数字”，因此循环节怎么会是“09”呢？举一反三：58÷44=用递等式计算，能简算的要用简便方法计算：25 ×4.4－7.6此题在解答时要注意：将“4.4”分拆时，要分成“4×1.1”较为简便，而不提倡将“4.4”分拆“4+0.4”.(0.56÷0.8-0.45) ÷0.25×4 此题在解答时要注意：“（）”里是两级运算，不要一下子把答案写出来，应该按步骤来写。
四则运算错题整理
人教版四年级下册第一单元四则混合运算错题整理错例（一）【错误再现】：28+32×3-60=60×3-60=180-60=120【原因分析】：学生在计算的时候，没有分清楚运算的顺序，还是按照从左往右的顺序计算，以致于在计算的时候出现错了。
【教学提示】：在做题时，可以让学生说一说先算什么再算什么，为什么按照这样的顺序计算，再让学生算一算结果。
最后，展示后学生的错例，分析下错在哪里。
错例（二）【错误再现】：25×4÷25×4=100÷100=1【原因分析】：学生的错误在于受到数据的误导，看到中间是除法，而前面和后面的数据都相同，一看就认为是结果肯定是1。
说明学生对于四则运算的顺序还不是很熟练，容易出现错误。
【教学提示】：可以先让学生说一说先算什么再算什么，按照怎么样的顺序计算。
再把学生的错题展示出来，问学生刚开始怎么想的，现在明白了吗？接着让学生添上括号算一算，现在应该怎么样计算。
错例（三）【错误再现】判断：5÷0=0【原因分析】： 0不能做除数是除法中的一个难点。
学生在说的时候都很明白，但是在算式中就容易出错，这是受到乘法计算和0代表没有的意义的影响。
【教学提示】：让说错的学生说一说为什么是错的，因为0不能做除数。
再问说对的学生明白了吗？接着让学生改一改如果把这个算式变一变怎么变就会是对的？错例（四）【错误再现】校门口的两边各摆10盆仙人球。
操场四周摆的月季花是仙人球的2倍。
花季和仙人球一共有几盆？【原因分析】：学生没有看清题意，明确各表示什么意思。
【教学提示】：可以在做题之前让学生说一说各表示什么意思，那么说明仙人球有几盆。
瑞安市实验小学蔡展。
错题再现
错题再现1．顾炎武认为：“知封建之所以变而为郡县，则知郡县之敝而将复变。
然则将复变而为封建乎？曰：不能。
有圣人起，寓封建之意于郡县之中，而天下治矣。
”材料表明其主张是( ) A．反对封建君主专制B．郡县制避免了分封制的弊端C．应重新恢复分封制D．中央集权和地方分权相结合【答案】D 【解析】题干中的“封建”指的是封邦建国，即分封制，而不是封建制度，因此反对封建君主专制与题干无关，故A项错误；依据材料“寓封建之意于郡县之中，而天下治矣”可知郡县制依然存在弊端，不能实现大治，故B项错误；依据从材料“然则将复变而为封建乎？曰：不能。
”可知不能重新恢复分封制，故C项错误；依据材料“寓封建之意于郡县之中，而天下治矣”可知作者强调将中央集权和地方分权相结合天下才能大治，故D项正确。
2．元朝行省机构的总体权力颇大，但由于群官议政和军事、财政等专官提调，其处理各项庶政又是有所分工，互相配合、互相牵制的。
下列设置与之最为相近的是( )A．三公九卿制 B．三省六部制C．军机处和内阁制D．知州、通判、转运使【答案】D 【解析】材料所述内容是元朝地方行政机构职能配置，属于中央集权制度的建设，三公九卿制是秦汉时期君主专制方面的内容，故A项错误；三省六部制是隋唐时期君主专制方面的内容，与材料不符，故B项错误；军机处和内阁制是明清时期君主专制方面的建设，与材料主旨不合，故C项错误；宋朝设文官担任地方知州，设通判监督地方长官，设转运使主管中央对地方税收的调运，相互间既有配合也有牵制，故D项正确。
3．在西周的分封制下，受分封的偏远诸侯国逐步接受了中原文化，一些大诸侯不断向周围的夷、戎、狄等少数民族用兵，进而兼并其土地，进行文化渗透。
这主要说明分封制( ) A．将建立地方政权与加强周朝统治结合起来B．巩固了西周国家政权和拓展了疆域C．使统一的社会制度在各诸侯国中普遍实行D．在当时起到了促进民族融合的作用【考点】商周时期的政治制度——分封制【解析】西周没有实现对地方政权的有机管理，故A项错误；拓展了疆域不是材料中反映的主旨，故B项错误；材料中没有提及社会制度信息，故C项错误；材料中“夷、戎、狄等少数民族用兵，进行文化渗透”说明对少数民族的融合起到促进作用，故D项正确。
五年级上册数学错题漫画
五年级上册数学错题漫画一、错题漫画1。
题目：一个平行四边形的底是5分米，高是3分米，它的面积是（）平方分米。
小明的答案是16平方分米。
解析：1. 首先根据平行四边形的面积公式：S = 底×高。
2. 已知底是5分米，高是3分米，那么面积S=5×3 = 15平方分米。
3. 小明可能是把平行四边形的面积计算当成了求周长，(5 + 3)×2=16，这是错误的概念。
二、错题漫画2。
题目：一个三角形的面积是24平方厘米，底是8厘米，高是（）厘米。
小红的答案是3厘米。
解析：1. 根据三角形的面积公式S=(1)/(2)×底×高。
2. 已知面积S = 24平方厘米，底b = 8厘米，将公式变形为高=2S÷底。
3. 则高h=2×24÷8 = 6厘米。
4. 小红可能是直接用面积除以底，没有乘2，所以得出了错误答案。
题目：在1 - 20的自然数中，既是奇数又是合数的数有（）。
小刚写的是9和15，但是漏写了。
解析：1. 奇数是不能被2整除的数，合数是除了能被1和本身整除外，还能被其他数（0除外）整除的自然数。
2. 在1 - 20中，奇数有1、3、5、7、9、11、13、15、17、19；合数有4、6、8、9、10、12、14、15、16、18、20。
3. 既是奇数又是合数的数有9、15，小刚写对了这两个数，但可能忽略了检查是否完整。
四、错题漫画4。
题目：把5米长的绳子平均分成8段，每段长（）米，每段占全长的（）。
小李的答案：每段长(8)/(5)米，每段占全长的(5)/(8)。
解析：1. 把5米长的绳子平均分成8段，求每段长多少米，用总长度除以段数，即5÷8=(5)/(8)米。
2. 求每段占全长的几分之几，把全长看作单位“1”，平均分成8段，每段就占全长的(1)/(8)。
3. 小李把每段的长度和每段占全长的比例弄反了。
题目：一个数既是6的倍数，又是48的因数，这个数可能是（）。
四年级自制-超实用--错题集-错题本格式模板
四年级自制-超实用--错题集-错题本格式模板work Information Technology Company.2020YEAR错题重现：根据下图填空小红上学要走（）米，小丽上学要走（）米，小李比小红近（）米。
错题重现：392+681+29+790+908===错题重现：解决问题。
新学期，学校课外活动小组招生。
各个组的招生人数如下表，这四个小组一共要招名学生。
错题重现：计算。
400－32÷8×26＝错题重现：6999999+599999+49999+3999+299+19+6===错题重现：100+99-98-97+96-95-……+4+3-2-1===错题重现：3724-(724-163)-109-(391-337)====错题重现：699999+69999+6999+699+69====错题重现：1573-(217+73)-183===错题重现：4329-962-387-1038-1613=4329-( +1038 )-( +1613)====评讲时的切入点技巧、思维、算理数学 错题集错题重现： 645-268-32 = = = 在空里填上“＞”“＜”或“=”。
37+500 500+37 104+86+96 104+96+68 325-142-52 325-（142-52） 720-13+180-87 900-90 错题重现：算一算，填一填。
从上面看，有 个小正方形。
错题重现：算一算，填一填。
从右面看，有 个小正方形错题重现：算一算，填一填。
从左面看，有 个小正方形。
错题重现：判断对错。
从前面看立体图形，得到的平面图形是在空里填入“＞”“＜”或“＝”。
512×438511×439 678×843679×842 178×234179×233 345×495344×496评讲时的切入点 技巧、思维、算理四年级420人去春游，大车每辆900元，小车每辆700元，怎样租车最省钱？ 如果租大车，要 元。
典型错题集四
六上数学填空专项练习班级 姓名1、在一个长16厘米,宽9厘米的长方形中画一个最大的圆,直径应取（ ）厘米，如果画一个最大的半圆，半径是（ ）厘米。
在这个长方形纸片中剪半径是2分米的小圆，最多可剪（ ）个。
2、圆的直径增加20%，圆的面积增加（ ）%，圆的周长减少10%，圆的面积减少（ ）%。
3、六（1）班男生与女生人数的比为5∶4。
在一次考试中，整个班的平均分是85分，而女生的平均分是90分，男生的平均分是（ ）分。
4、把一个圆剪拼成长方形后 ，周长比原来增加了10cm,面积是（ ）。
5、超市开展优惠活动：冲卡1000元送250元。
用卡买食品相当于节省( )%。
6、某服装店促销活动：满400元减60元。
相当于打( )折。
7、如果A 是B 的143倍，那么B 与A 的比是（ ） 8、圆的半径是r,在这个圆内画一个最大的正方形，这个正方形的面积可以表示为（ ）。
如果这个正方形的面积是50平方厘米，这个圆的面积是（ ）。
9、两个长方形长的比是8：5，它们的面积相等，那么它们宽的比是（ ）。
10、一种盐水，若含盐率为20％，则盐与水的比是（ ）：（ ）。
11、六(1)班男生比女生少20%，那么女生与男生的比是( )。
12、同一根绳子，王东先剪去了53，李强接着剪去了53米，（ ）剪去的多。
13、以正方形的顶点为圆心，以它的边长为半径画一个圆，已知正方形的面积是30平方厘米，那么圆的面积是（ ）。
14、在12 、611 、512 、47 、1429中，最小的一个分数是（ ）。
15、把一根2425米长的绳子剪成相等的小段，一共剪了11刀，每段长( )米，每段占全长的（ ）。
16、有两张一样长的长方形纸条按图1放置，现在将上面的纸条以每秒4厘米的速度向右平移至图2。
这张长方形纸条的长是（ ）厘米。
17、如图，阴影环形宽刚好等于小圆的直径，大圆面积是小圆面积是（ ）倍。
18、用4根都是12分米长的铁丝围成长方形、正方形和圆形，则围成的（ ）面积最大。
译林版英语八年级上册U4错题重练
Unit 4 错题重练一．词汇运用。
1 Please speak ________ (clear) so that I can understand you .2. My sister has two _______ (toothbrush), but she _________ (not brush) her teeththis morning.3. ---What ______ do you mean?---I hav en’t got an _______ answer.(exact)4. My grandfather was _______ (terrible) ill in hospital last week.5. Can you do the maths exercises _____ (exact).6.--- What’s the _______ (mean) of the Chinese words. ----I don’t know, either.7.Look, Andrew with his parents ___________ (play) basketball in the playground.8.All of us got much ______ (excite) after we watched the show.9. She was _____ (fill) with joy after seeing her son.10. Your pronunciation is _______ (correct). You should practice it more.11. Is it easy for us to make ________ (sandwich).12.My grandma is so weak that she is _____ (able) to look after herself well.13. The Chinese teacher told us not _____ (stick) anything on the book.14. Don’t be _______ (patient) with our students. Give them some more chances.15. She didn’t do well in the 800-metre race. She came _____ (twelve).16. The room is old, but the furniture ___ modern.17.There was ___ (one) a very tall tree in this area.18 –Where’s your cousin?-- He____ (repair ) his broken radio in the study.19. Listen! How beautiful the light music__(sound).20.Christas is coming. The kids are busy_______(decorate) a Christmas tree.21. One end of the shelf was much ___(high) than the other.22.The film is so _______ (interesting) that he is uninterested in it at all.23. He doesn’t work hard at his lessons,so it’s _____(possible) for him to pass theexam.24.I ______ (buy) some books about DIY and _____(bring) them to my cousinyesterday.25.This glue doesn’t _____ (stick) very well.26. Can you ______ (complete) your task on time?27. I made a decision________ (make) some sanwiches for my mother.28. Excuse me. Can you tell me the _____ (正确的) answer.29. He learnt how to ____ (安装) window glasses yesterday.30. My mother ______(建议) me to take a course in cooking31. It was a mistake to ______ (把某物落在某地)my umbrella at home.32. How ______ (可怕的) the animal is!33.I won’t go to the park by bike. I______, I will go there by car.34. When did you take a c_____ in DIY?35. Please read the _______ (说明)before fixing the machine.36. I have two _____ (shelf) in my study.37. Don’t wear __________ (comfortable) shoes.It’s bad for your feet.38. She cut a picture of a lovely bear and ______ (stick) it on the cover.39. What great fun we had ____ (work) together.40. Please _______ (not be ) worried about your study. Nothing in the world isimpossible if you put your heart into it.二．单项选择。
高中英语错题集 (4)
高中英语易错题集锦(12)一．句式错误151. I learned that her father ____ in 1950.A had died B died C dead D is dead解析：该题正确答案为Ｂ。
从句中的谓语动词动作虽然发生在主句谓语动词的动作之前，但因从句中有明确的过去时间状语in 1950, 所以不用过去完成时态，而用一般过去时态。
152. The five-year-old girl ____ by her parents. A is looked B has looked forC is being looked for D has been looked解析：该题正确答案为Ｃ。
在带有介词的动词短语用于被动语态句中，介词不能省，否则就变成了不及物动词短语，而不能用于被动语态的句子中。
153. We had hoped that he ____ longer.A stays B have stayed C stayed D would stay解析：该题正确答案为Ｄ。
had hoped表示"本希望"，同样用法的动词还有think, expect 等，后面的句子需用虚拟语气154. "Mary wants to see you today"."I would rather she ____ tomorrow than today."A comesB cameC should comeD will come解析：该题正确答案为Ｂ。
would rather后面的从句需用虚拟语气，用动词过去时表示。
155. It is wise to have some money ____ for old age.A put awayB kept upC given awayD laid up解析：该题正确答案为Ａ。
意为"存"；keep up意为"继续"；give away意为"分发"；lay up"156. She says she doesn't feel like ____ out with you.A goingB to goC for goingD went解析：该题正确答案为A。
八年级语文上册错题集及分析(4)
八年级语文上册错题集及分析(4)八年级语文上册错题集及分析(4)文章来自：爱师网八年级语文上册错题集及分析典型错题1．（语文作业本）划线句中“占领”“控制”“封锁”三个词能互换使用吗？为什么？答案：不能。
因为扬中等广大地区已解放，所以用“占领”一词；而江阴要塞还没攻下来，不过敌军不能任意活动，所以用“控制”一词；江阴已被我军控制，敌军想从长江逃走已无办法，所以用“封锁”一词。
错误原因：表述不清，词不达意。
改进措施：增加相关题型的练习次数。
2．（语文作业本）根据拼音写出汉字。
Cuān（）升答案：蹿错误原因：与第一课所学的窜字混淆。
改进措施：区分两个字的不同读音和字义。
3．（语文作业本）第3课第一段中加点的“摸出”能否换成“拿出”或“取出”？为什么？答案：不能。
“摸出”说明了老妇人十分珍惜这只蜡烛，把它藏得很深，只能用手摸索着把它拿出来。
而“拿出”或“取出”则表达不出。
错误原因：知道不能替换，但不能正确的表述原因。
改进措施：引导学生从全文的角度把握个别字词的特殊含义。
4．选择恰当的词语填写在下列句子中的横线上。
推重推荐推让推崇（1）这部著作受到学术界的________。
（2）在荣誉面前大家互相________。
（3）他的高尚品德为人们所________。
（4）这本书很好，应该向学生________。
答案：推重推让推崇推荐错误原因：推崇和推重两个词语混淆。
改进措施：先看词义：推崇：尊崇，十分推重。
推重：对某人的思想、行为、成就等给予很高的评价，表示十分重视。
据此可以看出，推重侧重于对某人一个或几个方面的重视，而推崇则倾向于对整个人的认可；即便指向于相同的一个侧面，推崇的语气明显强于推重。
也可以说，推重是有所保留的认可，而推崇是毫无保留的认可。
5．课文中表现桃花源中人安居乐业的句子是___________________________。
答案：其中往来种作，男女衣着，悉如外人，黄发垂髫，并怡然自乐。
错误原因：将描写桃源景色的句子也写入其中。
译林版英语八下UNIT4错题重练
8BUNIT4错题重练词汇（20’）1.My mother (not let) me (play) until I finish my homework this Sunday.2.One of them (visit) the lonely island before.3.How long has the film been (finish/over)?4.Eating (noise) is impolite.5.My father once (work) in Canada. So I (be) there once.6.The old man was found (die) in the lonely house.7.Who taught (your) French last term? -------We taught (our).8.My cousins always (discussion) what to read with me.9.The young boy sailed the sea to look for (hide) treasure.10.Did the story give you any (confident)?11.All the students in the class except the sick boy (go) to plant trees. The classroom is quiet.12.After (swim) for half an hour, I was tired out.13.Those are good at .They often read books to learn how to make new dishes.(cook)14.This is (ugly)building that I have seen before.15.Those (Canada) had a fantastic time (visit) the Palace Museum.16.There (not be)much pollution in our hometown in the past two years.17.When she heard the thunder, she ran into the room, (scream) in fear.18.Tom was sorry for his (be) late again, but the teacher’s smile madehim (feel) better.19.The teacher won’t let Tom go until he (finish) (clean) the classroom.20.After (finish) school ,she found a job in a (publish) house.选择（30’）1.-----Can you tell me ?-------I’ve no idea. You can ask Sandy for help.A.how to do with B what to do with C how to do with it D what to do with it2.I wonder teenage problems .A. how to do withB. what to do withC. what to doD. what should I do3.What the teacher said all the students.A. reachedB. designedC. heldD. touched4.------When the programme ?-------At 7p.m and it for half an hour.A.did ,begin; has begun B .has, begun ; beganC. did begin; begunD. did, begin; has been on5.----------Learning English well is .---------Yes, but it will become much easier if you .A.h ard work ; hard workB. hard work; work hardC. a hard work; work hardD. a hard work; hard work6.-----Do you think important for students to do their homework and on time?A. it’s; hand them inB. that; hand in themC. it’s ; hand in itD. it; hand it in7.That day I saw some parents at the back of the classroom, to the teacher.A. sitting; listenB. sitting; listeningC. sat; listeningD. sat; listening8.Sadly,the air in the country is no longer as fresh as it .A. was used to beingB. has used to beC. used to beD. has been used to be9.His mother since his father .A. has been away; has been deadB. has left; was deadC. has left ;diedD. has been away; died10.------You are late again. The class for five minutes.------Sorry. There is something wrong with my bike.A.b eganB. has begunC. was onD. was on11.-----How long can I this history book?------- two weeks.A.B orrow; forB. keep; forC. borrow ; sinceD. keep; since12.-------Thanks for taking my friends and me out tonight.------- .A.You are welcomeB. Don’t worry.C. That’s a good ideaD. It’s pleasure.13.I need to know my work so that I can plan my day.A. how to startB. who to doC. why to startD. when to start14.Do you remember to do next to restart t he computer?A. whatB. whyC. whenD. how15.------Have you visited the theme park?-------Yes ,already.A.s ometimeB. some timeC. sometimesD. some times16.-----Excuse me. Could you tell me get to the library?------Sorry, I’m new here.A.h ow I couldB. how to do C .what I can D. how to17.I have no money this month.A. braveB. lightC. straightD. spare18.After Mo Yan won a Nobel Prize, many planned his works.A.publishing house ; to publishB. publishing house; publishingC.pubilshing houses; publishingD. publishing houses; to publish19.--------Don’t smoke here. Can’t you see the sign?---------Sorry, I it.A.D idn’t seeB. haven’t seenC. don’t seeD. won’t see20.------Could you tell me something about the two--------- .They are exchange students of No.1 Middle School.A.Germen; OKB. Germans; All rightC. Frenchmen; Yes, pleaseD. Frenchmans; Come on21.------When did the mother her son’s letter?--------She a letter from him since last Saturday.A.hear from; heardB. receive; has heardC. receive; has hadD. receive; has received22.-------Is that Mr Wang speaking?--------Sorry. He isn’t at home. He abroad for a week.A.has gone toB. has been toC. has goneD. has been23.To learn English well, you’d better speak English you can.A. as often asB. as many asC. as much asD. A and C24.I wonder teenage problems.A. what to doB. what to do withC. how to deal with itD. what should I do25. I opened my eyes, I saw the sun shining brightly the window.A. before; throughB. until; acrossC. as; acrossD. as ;through26.I really don’t what to about it.A. talkB. tellC. speakD. say27.------ good read it is!------Yes, the story really touched me a lot.A.W hatB. what aC. howD. how a28.I didn’t know you books.A. likeB. likedC. to likeD. likes29.I am reading a book Chinese history. I want to improve my knowledge the past.A. about; forB. on ; inC. about ; ofD. on ; for30.My uncle the club in 2010.He the club for over 3 years.A. has joined; has joinedB. joined; has joinedC. joined; has been a member ofD. has joined; has been in阅读理解（5’）My sister Alli and I have been trying to get people to stop dropping cigarette butts(烟蒂) for seven years. One day, we were walking in our hometown and saw hundreds of cigarette butts on the ground. They made the town look so ugly that we decided to start a group to make people stop dropping butts. We called it “No Butts About It”. At first, we drew pictures with “The Earthis Not Your Ashtray(烟灰缸)” written on them. We put the pictures around our hometown---in parks, by beaches, and along roads. We wanted to make people understand that dropping butts hurts the environment. Most smokers don’t think that dropping butts hurts the earth. But it does! All rubbish does. Later, we wrote to companies and asked them for money to help us. We used the money to buy ashtrays to give smokers. We wanted smokers to carry the ashtrays with them so they didn’t have to drop butts. At the moment, we are trying to get cigarette companies to put an ashtray in each pack of cigarettes. Some companies want to do it.Many people have started to join our group since it began. Today there are 45 other “No Butts About It” groups in America. And there are even groups in England, Australia and Indi a! Many newspapers have written about my sister and I over the last seven years. And we have won many prizes for our good work.But we are not interested in prizes. We just want to make the earth a better and cleaner place for animals, plants and people. One day it will be.( )36. “No Butts About It” started___________A. seventeen years ago.B. seven years ago.C. seventy years agoD. It’s not mentioned. ( )37. Why did they start the group?A. Because they don’t like cigarette.B. Because they want to make money.C. Because they want people to know them.D. Because they want to protect the environment. ( )38. How many “No Butts About It” groups are there in America?A. 7B. 45C. 46D. 49. ( )39. The writer lives in_________A. America.B. England.C. Australia.D. India. ( )40. What did the writer do the following EXCEPT__________?A. starting a group called “No Butts About It”B. writing to companies to ask them for helpC. asking newspapers to write about her sister and herD. managing to get some cigarette companies to put an ashtray in each cigarette pack短文填空（10’）请认真阅读下面短文，并根据各题所给首字母的提示，写出一个合适的英语单词完整、正确的形式，使短文通顺。
数学错题检讨书4篇
数学错题检讨书4篇我对于我这次犯的错误感到很惭愧，我真的不应该把这么简单的作业写错，我不应该违背老师的规定，我们作为学生就应该完全的听从老师的话，而我这次没有很好的重视到老师讲的话。
我感到很抱歉，我希望老师可以原谅我的错误，我这次的悔过真的很深刻。
我要避免这样的错误发生，希望老师可以相信我的悔过之心。
相信老师看到我的这个态度也可以知道我对这次的事件有很深刻的悔过态度，我这样如此的重视这次的事件，希望老师可以原谅我的错误，我可以向老师保证今后一定会认真做作业的。
所以，老师把让我写检讨，也是为了让我深刻的认识到这点。
其次，不认真做作业也是一种对老师的工作不尊敬的表现。
中国是一个礼仪之邦，自古就讲究尊师重道，这是一种传统的美德，过去我一直忽视了它。
抛开着一层面，不单单是老师，无论对任何人，我们都应该尊重他，尊重他的劳动，他的劳动成果。
我这样做，直接造成了不尊重老师，不尊重他人，不尊重他人劳动的恶劣影响。
作为一名当代中学生，一名正在接受教育的人来说，这种表现显然不符合社会对我们的要求。
再次，我这种行为还在学校同学间造成了及其坏的影响。
同学之间本应该互相学习，互相促进，纪律良好，而我这种表现，给同学们带了一个坏头，不利于学校的学风建设。
同时，也对学校形象造成了一定损害，我们应该去维护而不是去破坏它！对于这件事情，所造成的严重后果我做了深刻的反思1。
影响个人综合水平的提高，使自身在本能提高的条件下为能提高。
如今错已铸成，我深感懊悔，深刻检讨自己的错误。
2。
思想觉悟不高，对错误的认识不足，试想如果当时我就认识到此事的严重性，错误就不可能发生。
之所有的问题都归咎于我还为能达到一个现代中学生应具有的认识问题水平，为能对老师的辛勤劳作作出回报，我越来越清晰的感觉到自己所犯的错误的严重性，为此，我一定会在以后的几年里更严格地要求自己，在认真完成作业，在上课的时候绝对不讲闲话地同时，使自己的言行都与一个现代中学生相符合。
人教版高中物理必修二错题4
（精心整理，诚意制作）【质点】两辆汽车在平直公路上匀速并排行驶，甲车内一个人看见窗外树木向东移动，已车内一个人发现甲车没有运动，如果以大地为参照物，上述事实说明（D）甲车向西运动，乙车不动乙车向西运动，甲车不动甲车向西运动，乙车向东运动甲、乙两车以相同的速度同时向西运动分析：甲车看见树木向东移动，所以甲车向西运动，乙看见甲不动，两车相对静止，所以答案选D。
【参考系】2、如图所示，由于风的缘故，河岸上的旗帜如图飘扬．在河面上的两艘船上旗帜如图状态，则关于两条船的运动状态的判断，正确的是（c）A．乙船肯定是向左运动的B．甲船肯定是静止的C．甲船肯定是向右运动的D．乙船肯定是静止的分析：图中河岸上的旗杆相对于地面是静止的，国旗向右飘，说明此时有向右吹的风．乙船上旗帜向右，有三种可能：一是乙船不动，风把旗帜刮向右；二是乙船向左运动，风相对于旗帜向右，把旗帜刮向右；三是乙船向右运动但运动的速度小于风速，此时风仍能把旗帜刮向右．对于甲船来讲情况相对简单，风向右刮，要使甲船的旗帜向左飘，只有使甲船向右运动．解：因为河岸上旗杆是固定在地面上的，那么根据旗帜的飘动方向判断，风是从左向右刮的．如果甲船静止不动，那么旗帜的方向应该和国旗相同，而现在的旗帜的方向明显和河岸上旗子方向相反，如果甲船向左运动，旗帜只会更加向右展．所以，甲船一定向右运动，而且运动的速度比风速快，这样才会出现图中旗帜向左飘动的情况．故选C．【位移和路程】3、一支长为150m的队伍匀速前进,通信兵从队尾前进了300m赶到队首传达命令后返还，当通信员返还回到队尾时队伍前进了200m，在此过程中通信兵位移大小和路程是多少？分析：人到队头时，前进的距离为300m减去队伍长，人到队尾时，队伍又前进的距离为200米减去队伍长，所以人向后跑的距离为队伍长减去队伍前进的距离，因此这个过程中通信兵的路程为向前300米和向后的距离．解：人到队前时，队伍前进的距离为S1=300m-150m=150m；人到队尾时，队伍前进的距离是S2=200m-150m=50m；所以人向后跑了S3=150m-50m=100m，因此这个过程中通信兵的路程为向前300m+向后100m=400m．答：这个过程中通信兵的路程为400m．【速度】4、一辆汽车沿平直的公路行驶，⑴若前一半位移的平均速度是v1，后一半位移的平均速度是v2，求全部路程的平均速度；⑵若汽车前一半时间的平均速度是v1，后一半时间的平均速度是v2，求全部路程的平均速度。
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时态错题1. A recent survey shows a maority of middle school students dream of ____ an opportunity to study abroad.A. there beingB. ther havingC. there having beenD. there to be2.It’s high time I _____my hair cut. It’s the fifth time that I ___ to the barber’s shop.A. had; have goneB. have; have goneC. have; metD. had; go3.—What’s the purpose of this experiment?— To figure out whether this material _____ easily under high pressure.A. is brokenB. will be brokenC. breaksD. broke4.Our company ____ new profit records through technical innovation—15% rate of growth in the last two years and 10% this year.A. setsB. has setC. is settingD. has been setting5.We _____ John’s name on the race list y esterday but for his injury.A. had putB. putC.would putD. would have put6.I was absent-minded in class. I’m afraid I _____ some important points the professor said.A. had missedB. was missingC. must have missedD. missed7. In such dry weather, the flowers will have to be watered if they _____.A. have survivedB. are to surviveC. would surviveD. will survive8. Our English teacher, who is said to have moved back to China, ___ in America for almost ten years.A. livedB. has livedC. was livingD. had lived9. The temperature will fall sharply tomorrow, when a snowstorm ____ to strike our area.A. expectsB. has expectedC. is expectedD. will be expected10.When a person lives too many hours a day in the digital universe, that is when he or she ____ something.A. has missedB. will missC. is missingD. misses11. We’d better take umbrellas. I’m sure it ____ when we arrive in London; it’s always wet there at this time of year.A. will rainB. is rainingC. will be rainingD. would rain12.—Long time no see. Haven’t you graduated from college?— Yes. I ____ business management for 4 years in Beijing.A. studyB. have studiedC. studiedD. am studying13.Mr Smith works with an auto company, but he _____ for this industrial exhibition, since he is on leave.A. has workedB. workedC. has been workingD. is working14. Difficult as rumours on micro blog, or Weibo, are _____, the authorities will step up supervision so that peopke will not be easily misled.A. preventingB. to be preventedC. to preventD. being prevent15.With a covering of ice in the plastic box, these fish will ____ fresh overnight.A. stayB. be stayedC. have been stayedD. be staying16. — Will you be able to see me when the first class is over?—I’m afraid not. I ______ a lecture on British literature in the hall.A. will attendB. am attendingC. will be attendingD. am going to attend17. —If I hadn’t been caught in the heavy rain, I could have been back by 7 O’clock.— What a pity! Stella ____ here to see you.A. isB. wasC. would beD. has been18. Founded in 1802 as America’s first college of engineering, the US Military Academy consistently ____ as one of the top colleges in the nation.A. rankedB. is rankingC. ranksD. has ranked19.I’m sure David _____ when we get home.A. is still sleepingB. is to be sleepingC. will be still sleepingD. will have been sleeping20. — The manager has come back and asked you for the report.—Oh, my god! I haven’t finished it yet. But he ______ back at the company tomorrow.A. was expectedB. will expectC. expectedD.will be expected21. When he came back home, he found his wife with red eyes, indicating that she _____.A. criedB. had been cryingC. has criedD. is crying22. In the last two months, he ____ himself to the way of life in the new school and how he wishes he _____ the teacher’s advice.A. has n’t adapted; had adoptedB. didn’t adapt; has adoptedC. didn’t adopt; has adaptedD. hasn’t adopted ; had adapted23. On July 10th, 2008, Apple ___ the Apple App Store. At that time, they ____ around 500 apps.A. set; had hadB. built; have hadC. launched; hadD. work; have24.—Do you think Mom and Dad ____ late?— No, Swiss Air is usually on time.A. wereB. will beC. would beD. have been25. I _____ to my cousin’s birthday party last night, but I was not available.A. had goneB. wentC. would have goneD. would go26. If we ____ a table earlier, we couldn’t be waiting in a long queue.A. have bookedB. bookedC. had bookedD. book27. — What about your self-drive trip yesterday?— Tiring! The road is being widened, and we _____ a round ride.A. hadB. haveC. would haveD. have had28. I am calling about the apartment you _____ the other day. Could you tell me more about it?A. advertisedB. had advertisedC. are advertisingD. will advertise29. —I didn’t expect that John would be absent from my last Sunday’s birthday party.— As far as I know, he ____ to see his parents in the countryside on Sunday.A. goesB. wentC. has goneD. had gone30. The girl has great interest in sports and _____ badminton class twice a week over the last three years.A. tookB. is takingC. takesD. has been taking31. Life abroad was not easy for him, and it was several years before he _____ the whole community.A. had been familiar withB. would be familiar withC. have been familiar withD. got familiar with能力训练2632.A study from the National Pen Company in the USA finds that your English handwriting _____ about 5000 of your personality traits.A. gives outB. gives awayC. gives inD. gives up33.It was _________ that the number of the students going abroad increased by 15% last year.A. given outB. given inC. given upD. given away34. Though ____ a difficult and even dangerous place, Vietnam is now a friendly destination thatwelcomes visitors from all over the world _____.A. considered; visitingB. considered; to visitC. considering; visitingD. considering; to visit35.The subway was crowded with passengers going home from the market, most of ____carrying heavy bags and baskets full of goods they bought there.A. whomB. themC. whichD. who36.In the reading room, we found her ____ at her desk, with her attention ___ on a book.A. seating; fixedB. sitting; fixedC. sit; fixingD. seated; fixing37. Our English teacher, having explained to us how to design a project, allowed us a wholeweek’s preparation and then ____the class.A.dismissedB. dismissingC. having dismissedD. to dismiss38. The notice came around two in the afternoon______ the meeting would be postponed.A. thatB. howC. whetherD. when39.It was reported that an agreement ___ between the two companies and that they would carryout a project together.A.reachedB. had been reachedC.was reachedD. has been reached.40. Nothing and no one there seemed to _______ much to do with my life.A. connectB. linkC. relateD. have41.Our product needs an image that people can __________.A. connect withB. relate toC. join toD. link with42.With years _______by, the memory of his experience gradually ________until one night.A.gone;forgotB.going; disappearedC.go; disappearedD. going; forgot43.Affected and moved by the music, the truth seeker felt _____ towards the player.A. nearB. drawnC. attractedD. approaching能力训练2744. The project is based on an agreement, one of ______ purposes is to ensure that the projectcan be accomplished before the deadline.A. whoseB. whichC. itsD. what45. Until we have discussed all the details, no decision ____ about any new operations.A. will be madeB. is madeC. is being madeD. has been made46.The Chinese economy is still doing well______ the current finanicial crisis.A. in terms ofB. in spite ofC. on behalf ofD. in consequence of47.With all the money _____, the man was reduced to _______a living by begging.A. run out ; makingB. run out of; makingC. used up; makeD. running out; make48. ____ is known to us all that the older worker, for _____ life was hard in th epast, still works hard in his seventies.A. What; whomB. It; whomC. As; whoseD. It; whose49. ____ is known to us all is that the older worker, _____ life was hard in th epast, still workshard in his seventies.A. What; whomB. It; whomC. As; whoseD. What ; whose50.—What on earth are the police busy with?— They have been looking into how the plane crash ____.A. came outB. came upC. came downD. came about51.I am sorry to tell you that we will not tell you the result of the survey until we have looked through all the ______.A. directionsB. instructionsC. dataD. standards52.A team of college students ______ their tutor in carrying out the survey about the effects on the living standardsA. supportedB. encouragedC. assistedD. respected53.I realize that society puts a high _____ on youth, beauty and academic achievement.A. valueB. viewC. importanceD. agenda54.I have been working hard for many years and I’m sure that all my efforts _____ at last.A. will be paid backB. paid backC. will be paid offD. will pay off统考模拟：55.“The reading passage,” he added, “______ to several types of cybercrime, discussed how to ensure the security online in the long term.”A. referringB. refersC. having referredD. referred56. “The reading passage,” he added, “______ to several types of cybercrime, and discussed howto ensure the security online in the long term.”A. referringB. refersC. having referredD. referred57.He takes good care of the dog, and the dog,____, is very devoted to its owner.A.for instanceB. in turnC. as a resultD. on the contrary58. His father died in a car accident. He stayed with his mother till nearly midnight, comfortingher and being comforted _____.A.in publicB.in returnC.in vainD.in turn59.We seem to have heard of terrorist attacks more often recently. I just wonder ____ that makesthem take such extreme action.A. what it isB. what is itC. why it doesD. why does it60._________ that makes them take such extreme action?A. What it isB. What is itC. Why it doesD. Why does it61.The opponent must have given out, or he _____ to the end of the game.A. would hold outB. would have held outC. heldD. had held62. The sleeping baby would be scared _______ a sudden loud noise.A. was thereB. there wasC. should there beD. there should be63.My hometown is a wonderful mix of old and new buildings. However, ______ to its beauty are the fantastic natural scenery and well preserved monuments.A. addB. addingC. addedD. to be added64. Considering so many people have ____ cheating others of their money on the Internet, world-wide cooperation is urgently needed.A. got away withB. got away fromC. got offD. got rid of65. Of the 351 biggest companies and government agencies____ since the beginning of themonth, 45 percent were found ______ in guarantee of system security.A. questioned; lackedB. questioning; lackedC. questioned, lackingD. to question; lacking66.—I really enjoyed my stay with you, but I’m afraid I must be off to work now.—____________.A. Nice to see youB. My pleasureC. So longD. Sorry to trouble you.67.______ too much for his intelligence, Herry often overlooks the importance of effort.A. PraisedB. Having praisedC. PraisingD. Being praised68.______ from endless homework on weekends, the students now find their own activities, such as attending school literature clubs.A.Having freedB. FreeingC. To be freedD. Freed69.We are happy to _______ our seats for this newlyweds and take their seats at the back of the plane.A. give awayB. give upC. give outD. give off70.My mother is always keeping what she has bought ____ to avoid being blamed by my father.A. hidingB. hided C hidden D. to hide能力训练2871.We shall take the condition into careful account ______ you have attached to this contract.A. asB. whichC. whereD. what72. I was once advised to stay away with her. Though usually easy-going, she _____ be extremely hard to deal with.A.canB. mayC. mustD. should73.—Hi, David! Are all of us going sightseeing sometime next month according to the plan? —No. Don’t you know that the plan _____ at the second meeting?A. was cancelledB. would cancelC. has cancelledD. had been cancelled74.In a room above the store, where a party ____, some workers were occupied in clearing it up.A. was to be heldB. had been heldC. was heldD. was being held75.They lost their way in the forest and ______ also made matters worse that night began to fall.A.itB. thatC. whatD. which1-5AACDD 6-10DBACC 11-15CCDCA 16-20CBCCA 21-25BACBC 26-30CAAAD31-35DBABB 36-40BAABD 41-45BBBAA 46-50BBADD 51-55CCADA 56-60BBDBA61-65BCBAC 66-70CADBC 71-75BAABA。