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·选择题从属连词
My friend Mary is very .She once waited for me for nearly two hours.（ ）
查看题目详情 →
九年级·英语·选择题并列连词
You never know__________you try something.（ ）
查看题目详情 →
九年级·英语·选择题并列连词
She can speak little English but she dares______with foreigners.（ ）
查看题目详情 →
九年级·英语·选择题并列连词
WeChat （微信） is very popular． the young the old are getting interested in it．（ ）
查看题目详情 →
九年级·英语·选择题并列连词
my father my mother is able to connect the computer to the Internet though I have showed them how to do it.They\’re very sad.（ ）
查看题目详情 →
九年级·英语·选择题并列连词
- Mr． King, I\’ve gone through your program． Can I make a suggestion? -_______． I\’m all ears．（ ）
查看题目详情 →
九年级·英语·填空题反意疑问句
His roommate set out at sunset for a night\’s hiking．（改为否定句） His roommate____________ out at sunset for a night\’s hiking．
查看题目详情 →
九年级·英语·选择题反意疑问句
Jane has never been to the Great Wall,______?（ ）
查看题目详情 →
九年级·英语·填空题日常生活类阅读;形容词词义辨析;说明文;判断推理
excellent / advantage / controlled / trained / go through / normal / given Unlike those long-limbed （四肢细长的） dogs,the cute corgi,Fu Zai,successfully joined the police force.He is only six months old and has been （1）______
查看题目详情 →
九年级·英语·填空题词根词缀;记叙文;人物故事类阅读;判断推理;文中细节
Liam Garner was just 17 years old when he started out on his adventure—a 32,000-kilometer bike trip.In early January,he finally finished his trip,17 months after he started. After Liam graduated from high school,he wonde
查看题目详情 →
九年级·英语·填空题新闻报道类阅读
Dancing with the song of heroes With the worldwide celebration of the Chinese New Year.Yingge Dance from southeast China has once again received widespread attention.It is based on the story of the heroes of Liangshan wh
查看题目详情 →
九年级·英语·填空题逸闻趣事类阅读;判断推理;内容归纳
Matt loved science,and he wanted to be the Science Star of the week.Now he was presenting his experiment in Mrs.Perry\’s class. "Let me show you（1）______ to keep an egg in the middle of the glass." Matt（2）______ an egg i
查看题目详情 →
九年级·英语·选择题科普知识类阅读
The idiom （成语） "Taking history as a mirror,I can understand the rise and fall of a nation" tells us that .（ ）
查看题目详情 →
九年级·英语·选择题日常生活类阅读
—Kung Fu Panda 4 on March 22nd!Let\’s watch it tomorrow. —Sure.I\’m a big fan of Panda Po.（ ）
查看题目详情 →
九年级·英语·选择题名词;名词的词义辨析
—Mr.Black,would you like some more ice-cream? —No,thanks.I have to my weight,you know.（ ）
查看题目详情 →
九年级·英语·选择题情态动词;虚拟语气
—Jenny,be quick!Or we\’ll be late. —Don\’t ________ me.I\’m coming as fast as I can.（ ）
查看题目详情 →
九年级·英语·选择题形容词;形容词词义辨析
—Miller,go to have a nice bath and an early sleep. —All right.Then I will be for the journey tomorrow.（ ）
查看题目详情 →
九年级·英语·选择题不定代词
—Can I go shopping with you this afternoon or tomorrow morning? —I\’m afraid is OK for me.I\’m studying for my coming test.（ ）
查看题目详情 →
九年级·英语·选择题序数词
—I am wondering whether Mike tells the truth. —It\’s not his to tell lies.I believe him.（ ）
查看题目详情 →
九年级·英语·选择题情境对话
—Jim,remember to return this book by this Saturday. — .（ ）
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。