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不限七年级八年级九年级

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#1 · 常错题

今年市委市政府积极推进创建“全国文明城市”工作，市创城办公室为了调查初中学生对“社会主义核心价值观”内容的了解程度$($程度分为：“$A-$十分熟悉”，“$B-$了解较多”，“$C-$了解较少”，“$D-$不知道”$)$，对我市一所中学的学生进行了随机抽样调查，根据调查结果绘制了两幅不完整的统计图如图，根据信息解答下列问题： $(1)$本次抽样调查了多少名学生； $(2)$补全条形统计图和扇形统计图； \

#2 · 常错题

在平面直角坐标系中，点A的坐标为（1，1），点B的坐标为（11，1），点 C 到直线 AB的距离为4，且△ABC是直角三角形，则满足条件的点 C 有个．

#3 · 常错题

如图所示，直线AB、CD相交于点O，OM⊥AB，（1）若∠1=∠2，求∠NOD的度数 1 （2）若∠1=∠BOC，求∠AOC和∠MOD的度数． 4

#4 · 常错题

分类讨论思想是数学的重要思想,在学习有理数的过程中,也深有感受$!$ $(1)$当$ab \lt 0$时,若$b \gt 0$,$|a| \lt |b|$,则$a+b \_\_\_\_\_\_0$； $(2)$当$abc \lt 0$时,若$ab \gt 0$,则$c \_\_\_\_\_\_0$； $(3)$已知$a$,$b$,$c$是非零有理数,则$\frac{a}{|a|}+\frac{b}{|b|}+\frac{c}{|c|}=

#5 · 常错题

一批水果的标准质量是$30$千克,超出标准质量记为正,低于标准质量记为负,现记录如下:$+8$,$-9$,$-5$,$+7$,$-8$,$-6$,$+7$,$+10$. $(1)$这批水果总共有多少千克? $(2)$第一天按每千克价格$5$元卖出了这批水果的一半,第二天为了吸引顾客把第一天卖水果的价格降价$20\%$后作为新的价格,卖完了剩下的水果,请计算一下这批水果一共卖了多少钱?

#6 · 常错题

将循环小数化为分数:整数、有限小数、循环小数都可以化成分数,整数和有限小数化成分数容易,循环小数如何化成分数呢?请看下面的例子. 将循环小数$0.288\ldots $化成分数:将$0.288\ldots $分别乘$10$和$100$,得$2.88\ldots $和$28.88\ldots $,两个得数相减得$26(两个得数小数部分相同)$,而相减所得的$26$应该是$0.288\ldots $的$\left(100-10\right)

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九年级·英语·填空题记叙文

Students in our class want to do something for a Hope Middle School in Gansu Province.Some of us will walk to (1) streets with a box and ask people for donations（捐赠）.Others plan to (2) some old toys and books from their

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九年级·英语·填空题记叙文

Mark Smith is a student at a vocational school - a school where people learn how to do the jobs.After he finished middle school,he had to decide how he wanted to make a (1) in the future.He's the kind of person who is go

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九年级·英语·阅读理解个人故事

What does it mean to be an older sister？In the movie Sister,An Ran is a 24-year-old woman who dreams of becoming a doctor.However,after her parents die in a car accident,An faces a choice between going after her dream an

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九年级·英语·阅读理解个人故事

Dear head teacher,teachers,parents and fellow students,I'm very proud that you have chosen me to speak to you today. I have three roses here：a red one,a yellow one and a white one.These roses are to thank three groups of

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九年级·英语·阅读理解广告

Hotel information （ Booking a Package Tour to Beijing） Welcome to Ѕunѕhіne Hotel!We have all kinds of facilities （设施） to make you stay comfortable.We also offer breakfast for some types of rooms.If you want to explore ar

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九年级·英语·阅读理解个人故事

Last night,Mum was cooking my favorite meal,which is chicken,sweetcorn and noodle soup.She asked if I would like to watch and help.I love cooking with Mum.Mum told me how important it is to eat healthy food that has been

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九年级·英语·书面表达看图写作

人们常说："服务他人，快乐自己。"你准备利用即将到来的暑假去社区做一些服务工作。请你根据表格内容，给你们学校的英文报社写一篇短文，介绍你的计划。要求：1、文中包含所提供的信息，可适当发挥；2、语言通畅，意思连贯，符合逻辑； 3、80词左右，开头已给出，不计入总词数 Places Activities Community center Help the old,sing songs,tell stories,........ Commu

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九年级·英语·书面表达提示作文

下面是一篇未写完的短文，请阅读并为短文写一个40词左右的结尾，使短文连贯完整。 It's very important for us to get on well with our parents,But how can we get along with our parents？Here is some of my advice._________

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九年级·英语·短文改错语法知识

阅读短文，判断标有题号的每一行画线部分和有漏字符号（∧）处是否有错误。如无错误，在该行右边横线上画一个"√"；如有错误（每行只有一个），则按下列情况改正：画线部分为多余的词：把该词写在该行右边横线上，并画上斜线（\）。画线部分为错词：在该行右边横线上写出正确的词。有漏字符号（∧）处缺一个词：在该行右边横线上写出所缺的词。请在答题卡相应位置答题。【小题】Cold is a common illness,and you may very

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八年级·英语·补全对话英文要点

（Tony meets Anna on their way to school. ） Tony：Hi,Anna.You don't look well.What's the matter？ Anna：I have a headache and I am sleepy now. Tony： (1) Anna：I stayed up late to do my homework. Tony：But there was not much ho

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九年级·英语·信息匹配语篇范围

I always remember a thing that happened last month. (1) So I sat on a bench（长椅）to enjoy the warm sunshine in the park. (2) His clothes were old and dirty and his face was pale（苍白的）. It seemed that I should do something t

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九年级·英语·阅读理解日常生活

Holidays with friends can be great fun and a good way of getting to know each other better.Planning the trip well will help you have a good time.Also it will help you to save money if you start planning earlier. Going ab

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九年级·英语·阅读理解日常生活

If you have a brother or sister,you already know you are different from each other.You live together in the same house and with the same parents,but you have different .Why is this？One possible reason is the way your par

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九年级·英语·阅读理解日常生活

Dear Paul, I haven't seen you for a long time and I miss you very much.Now I'm writing to you to ask for your help.My doctor is a woman and I feel nervous about it,especially when I have to wear nothing at the doctor's o

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八年级·英语·填空题记叙文

Once there were two women and a boy．The two women (1) said that the boy was their son． (2) knew whose son the boy was． Finally they came to the king to get the (3) ．The king thought for a while and found an idea．He asked

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九年级·英语·选择题问答/审问

--- I left my pen at home.Could I use yours,Amy？ --- I am using it.（）

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九年级·英语·选择题特殊句式

--- Son, you have never been abroad, I'm worried about you. --- Don't worry, mom. As soon as I ， I you.（）

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九年级·英语·选择题一般过去时,动词辨析

Our soccer team all the other football teams and first prize last weekend.（）

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九年级·英语·选择题冠词

--Cindy,what do you think of_____result？ --I think it is ____unfair one.（）