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
八年级·英语·阅读理解Lesson 10 Going to the Doctor
One of the biggest festivals for Chinese people is Mid-Autumn Festival. It is a good chance for Chinese families to get together and enjoy delicious foods. On this special day, everyone will eat mooncakes. They play an i
查看题目详情 →
八年级·英语·填空题Lesson 10 Going to the Doctor
完型填空（10，每题1分） How can we stay healthy? One important rule is to exercise . The Fang family try to exercise every day. Lee Fang exercise in the morning because he must be at his job at exactly(精确地) seven o’clock. But he r
查看题目详情 →
八年级·英语·单词造句Lesson 15 A Young Hero
glad, is, help, Grace, to, others （.） （连词成句） ______
查看题目详情 →
八年级·英语·句型转换Lesson 15 A Young Hero
She was having lunch at this time yesterday. （对画线部分提问） ______she______at this time yesterday？
查看题目详情 →
八年级·英语·句型转换Lesson 15 A Young Hero
They were painting in the park. （改为否定句） ______in the park.
查看题目详情 →
八年级·英语·句型转换Lesson 15 A Young Hero
You should stay here and wait for the teacher. （改为一般疑问句） ______here and wait for the teacher？
查看题目详情 →
八年级·英语·句型转换Lesson 15 A Young Hero
He helped an old man cross the road. （改为一般疑问句） ______an old man cross the road？
查看题目详情 →
八年级·英语·单词拼写/单词释义Lesson 15 A Young Hero
由于汤姆的警告，所有的学生到达了一个安全的地方。 Because of______， all the students got to a safe place.
查看题目详情 →
八年级·英语·单词拼写/单词释义Lesson 15 A Young Hero
当地震发生时，弗兰克在做什么？ ______ Frank______when the earthquake happened？
查看题目详情 →
八年级·英语·单词拼写/单词释义Lesson 15 A Young Hero
请注意这个词的用法。 Please______the use of this word.
查看题目详情 →
八年级·英语·句型转换Lesson 14 Helping Each Other
I was having lunch when you called me. （改为否定句） I______when you called me.
查看题目详情 →
八年级·英语·句型转换Lesson 14 Helping Each Other
There were some buildings in the street last year. （改为否定句） ______buildings in the street last year.
查看题目详情 →
八年级·英语·句型转换Lesson 14 Helping Each Other
My father met his old friend on his way home . （对画线部分提问） ______your father______his old friend？
查看题目详情 →
八年级·英语·句型转换Lesson 14 Helping Each Other
I dared to touch the elephant. （改为否定句） I______touch the elephant.
查看题目详情 →
八年级·英语·句型转换Lesson 14 Helping Each Other
Penny is friendly to her new classmates. （改为一般疑问句） ______to her new classmates？
查看题目详情 →
八年级·英语·单词拼写/单词释义Lesson 14 Helping Each Other
凯特如此紧张，以至于她不能自如地表达自己的意思。 Kate was______she couldn't express herself freely.
查看题目详情 →
八年级·英语·单词拼写/单词释义Lesson 14 Helping Each Other
我晚上不敢独自出去。 I don't______outside alone at night.
查看题目详情 →
八年级·英语·单词拼写/单词释义Lesson 14 Helping Each Other
他努力帮助无家可归的儿童。 He tried______the homeless children.
查看题目详情 →
八年级·英语·阅读理解Lesson 13 Helping Your Community
Help Out a Bit Are you looking for something fun？ Would you like to help other people in your free time？ Then join us to be a volunteer. We have jobs for people of all ages. Anyone from 12-year-old children to 70-year-ol
查看题目详情 →
八年级·英语·单词拼写/单词释义Lesson 13 Helping Your Community
许多人志愿到城市公园去打扫。 Many people______clean up the city park.
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。