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。
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
#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
九年级·英语·填空题首字母阅读填空
It's not easy for us to forgive（原谅） someone who has ever hurt you or made you disappointed．（86）H ，several new studies say that it could be good for your health．When you think of forgiveness，you probably don't think of it
查看题目详情 →
九年级·英语·填空题史地常识类阅读
Kites have a history of about 2,300 years in China.It is said that kites were first invented by Mozi in the Warring States Period.A kite is often made of bamboo or wood sticks and paper or silk and in the shape of just a
查看题目详情 →
九年级·英语·填空题史地常识类阅读
Started along the Huaihe River in eastern China,Flower Drum Lantern dance is well-known（1）______its bright colors,different forms and cheerful mood. As a traditional treasure in China,the dance has a very long history.It
查看题目详情 →
九年级·英语·句型转换现在进行时的被动语态
Complete the following sentence as required. ( 根据所给要求，改写下列句子 ) 【 1 】 He apologized to me for being late for the meeting this morning.( 保持原意 ) He _______ an _______ to me for being late for the meeting this morning. 【 2 】
查看题目详情 →
九年级·英语·选择题现在进行时的被动语态
Look! A big modern building _________ in our city.
查看题目详情 →
九年级·英语·填空题现在进行时的被动语态
适当形式填空 【1】Which language is the most widely___（speak） in the world？ 【2】No permission___（give） for anybody to enter the building． 【3】Some of the swamps have been___（pollute）． 【4】The sick man___（operate） on now． 【5】We hope
查看题目详情 →
九年级·英语·填空题现在进行时的被动语态
Fill in the blanks with the proper form of the given verbs. apologize, laugh at , strike , buy, be, live with. 【1】Our initial plan was ______professionally printed wedding inventions. 【2】As a good actor, you'd better not
查看题目详情 →
九年级·英语·句型转换现在进行时的被动语态
Complete the following sentences as required （根据所给要求完成下列句子 , 每题空格限填一词） 【 1 】 The young man denied that he had stolen the necklace. （改为一般疑问句） _______ the young man _________ that the had stolen the necklace? 【 2 】 My uncl
查看题目详情 →
九年级·英语·完成句子现在进行时的被动语态
许多明信片正在这家商店出售。 Many postcards are ______________ ______________ in this shop.
查看题目详情 →
八年级·英语·选择题一般疑问句
-How often do you call your pen pal?-______．（ ）
查看题目详情 →
七年级·英语·选择题一般疑问句
-Is that boy your brother? -No,he ______.（ ）
查看题目详情 →
七年级·英语·填空题一般疑问句
His mother went shopping yesterday evening.（改为一般疑问句） ______ his mother ______shopping yesterday evening?
查看题目详情 →
九年级·英语·选择题一般疑问句
--___ did you stay in China? -- For about two weeks.（ ）
查看题目详情 →
七年级·英语·填空题时态辨析
Unluckily,a motorcycle came towards the boy and ______ him down.[nɒkt]
查看题目详情 →
八年级·英语·选择题时态辨析
If farmers trees and forests,giant pandas no place to live in.（ ）
查看题目详情 →
七年级·英语·选择题时态辨析
---Have you written your book report,Bill? ---No,not yet．I it in two days．（ ）
查看题目详情 →
八年级·英语·填空题时态辨析
Tom finished his homework yesterday.（写出句子结构） ______
查看题目详情 →
七年级·英语·填空题阅读表达
When you\’ re feeling unhappy or forget how great you are,here are some ways to make you feel good about yourself. *Look in the mirror（镜子） and say to yourself,"I am a special person and there\’s no one in the world like
查看题目详情 →
七年级·英语·选择题时态辨析
I______ Chinese dishes for my foreign friends tomorrow evening．（ ）
查看题目详情 →
七年级·英语·填空题时态辨析
You have twenty minutes to ______ /kəm\’pli:t/ your homework.
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
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。