题霸题霸学习平台

初中免费试题库,先看题再决定怎么练

游客可浏览题目与选项;登录后可免费组卷并下载学生卷。答案解析、练习判分和错题本由 VIP 解锁。

高频错题

近期常错题排行

根据匿名练习记录整理

#1 · 常错题

#2 · 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)

#3 · 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; \

#4 · 常错题

#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

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|}=

精选练习题目

全部题目

清除筛选
九年级·英语·选择题连词辨析

I am writing to you _________ I\’m afraid to talk about it face to face.( )

查看题目详情 →

九年级·英语·选择题并列连词

—When did you go to bed last night? —Not until my homework .( )

查看题目详情 →

九年级·英语·选择题主语

--Which is the sentence pattern of "It is raining heavily"? --________.( )

查看题目详情 →

九年级·英语·单词拼写-单句主语

根据名意和提示,写出单词的适当形式 The c_____________ thought the potatoes were not thin enough.

查看题目详情 →

九年级·英语·填空题过去将来时

I believe.Tony will come on time.(合并为宾语从句) I believe ______ ______ ______ ______ on time.

查看题目详情 →

九年级·英语·选择题过去完成时

I arrived at the concert hall,I realized that I had forgotten my ticket.( )

查看题目详情 →

九年级·英语·选择题一般过去时

The child as well as his parents__________ the performance at the moment.( )

查看题目详情 →

九年级·英语·选择题一般现在时

-When shall I hand in my project? -As soon as it __________tomorrow.( )

查看题目详情 →

九年级·英语·选择题Unit 8 Surprise endings

- Every time I see the crippled woman, I will _____________ my hands to steady (稳住) her. -What a kind boy you are!( )

查看题目详情 →

九年级·英语·选择题Unit 8 Surprise endings

- Jack, you must ____________ your attention ____________ the class.Don't look here and there. -Sorry, Mr Wang. I will do as you say.( )

查看题目详情 →

九年级·英语·书面表达Unit 7 The Adventures of Tom Sawyer

中学阶段你一定读过一些故事书吧,请根据以下问题提示写一篇短文,谈谈你最喜欢的 故事.提示: 1.What is the name of the story and who is the writer? 2.What is the main idea of the story and who are the main characters? 3.Why do you like it? 要求: 1.表达清楚,语句通顺,意思连贯,书写规范;

查看题目详情 →

九年级·英语·单词拼写/单词释义Unit 7 The Adventures of Tom Sawyer

昨天雨下得如此大,以致许多学生上学迟到了。 It rained__________________many students were late for school yesterday.

查看题目详情 →

九年级·英语·选择题Unit 6 Healthy diet

- Stay away from that river. It's very dangerous to play near it. - OK. Thank you for reminding me.( )

查看题目详情 →

九年级·英语·选择题Unit 6 Healthy diet

-Do we need to buy some milk? -No, there is plenty of milk in file fridge.( )

查看题目详情 →

九年级·英语·书面表达Unit 5 Action

假设你是九年级(一)班的张蕊,在学习本单元的时候,老师让你们对不同的电视节目发表自己的看法。请你根据下面表格中的提示信息,写一篇80词左右的发言稿,说明自己的情况,可适当发挥。 节目 态度 原因 soap operas can't stand boring and meaningless game shows love exciting and enjoyable news don't mind educational

查看题目详情 →

九年级·英语·单词拼写/单词释义Unit 5 Action

Henry was a kind, good boy. However, his father was dead, and his mother was very poor. He wanted (1) (help) his mother because she couldn't always make enough money to buy food (2) her family. One day, a man gave him a

查看题目详情 →

九年级上·英语·书面表达Unit 4 Problems and advice

假如你的好朋友Lynn的父母对她期望很高, 希望她每科都拿到A, 她努力了但怎么也达不到。她写信给你, 希望能得到你的帮助。请根据以下要点提示写一篇英语短文。 要点提示: 1. 告诉父母你已尽力, 并跟他们讨论, 请教方法;2. 向老师询问学习方法; 3. 按照父母以及老师教的方法学习, 不断努力。要求: 1. 信中不得出现真实校名和姓名; 2. 条理清楚, 意思连贯, 语句通顺, 标点正确; 3. 80词左右。

查看题目详情 →

九年级上·英语·阅读理解Unit 4 Problems and advice

阅读理解 Some people think only school children do not agree with their parents. However, it is not true. Communication is a problem for parents and children of all ages. If it's hard for you to communicate with your parents

查看题目详情 →

九年级上·英语·书面表达Unit 3 Family life

写作我国拥有大量的自行车。但随着经济(economy)的发展,越来越多的家庭购买了汽车。请写一篇英语短文,阐述自行车和汽车各自的优缺点,并谈谈自己的看法。词数:100左右。参考词汇:outstanding,advantages,convenient,traffic,healthy,exhaust gas (废气),pollute

查看题目详情 →

九年级上·英语·书面表达Unit 3 Family life

每个人都是独一无二的,都有与众不同之处,人们喜欢你一定会有很多原因。请以“What makes me a good friend?”为题写一篇英语短文。要求:1. 语言表达准确,短文连贯通顺;2. 文中不得出现真实姓名和学校名称;3. 80词左右。What Makes Me a Good Friend?

查看题目详情 →

题库使用说明

从一道题开始,形成可复盘的练习记录

按真实条件找题

可以组合年级、学科、难度、题型和知识点搜索;筛选结果页不单独参与索引,避免重复页面分散权重。

题目公开,学习闭环由 VIP 解锁

题干与选项可直接浏览;答案解析、判分、错题本和针对训练需要 VIP。

再转成专项训练

发现薄弱知识点后可继续组卷或练同类题,把一次搜索转成后续练习和错题复盘。