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Unit 2 He was invited to competitions around the world.
—Will you please show me______the roleplay exercise? —Sure．
查看题目详情 →
九年级·英语·选择题Unit 2 He was invited to competitions around the world.
—When and where was the great composer born? —He was born ______ Macau ______ 13th June,1905．
查看题目详情 →
九年级·英语·选择题Unit 2 He was invited to competitions around the world.
You don't need to ______ yourself ______ others．
查看题目详情 →
九年级·英语·选择题Unit 2 He was invited to competitions around the world.
A Hope Primary School ______ in my hometown last year．
查看题目详情 →
九年级·英语·选择题Unit 2 He was invited to competitions around the world.
We can't begin the meeting．______，not everyone is here．
查看题目详情 →
九年级·英语·句型转换Unit 2 He was invited to competitions around the world.
Ⅰ．句型转换 【1】The boy spent a lot of time playing computer games．（改为同义句） It ______ the boy a lot of time ______ ______ computer games． 【2】They invited me to go to their party．（改为被动语态） I ______ ______ ______ go to their party
查看题目详情 →
九年级·英语·填空题Unit 1 Daming wasn’t chosen for the team last time.
Maggie was a new student in the class. It was a Tuesday, and Maggie _____ Tuesdays because there was a gym class and she would be picked last. Maggie sat on the gym floor, feeling _____. Mr. Murphy, the gym teacher, aske
查看题目详情 →
九年级·英语·填空题Unit 1 Daming wasn’t chosen for the team last time.
用括号中所给单词的适当形式填空 【1】Remember _________ (post)the letter for me on your way to school. 【2】My grandfather is _________ (come)either today or tomorrow. 【3】We are very proud that a student from our school has _________ (win)t
查看题目详情 →
九年级·英语·单词拼写Unit 1 Daming wasn’t chosen for the team last time.
根据句意及汉语提示完成单词 【1】It's important for students to have a good_________(记忆)to study well. 【2】I have made a _________ (决定)about my study goal for the new term. 【3】We usually have lunch at _________ (中午). 【4】The little boy ga
查看题目详情 →
九年级·英语·补全对话Unit 1 Daming wasn’t chosen for the team last time.
根据对话内容，从方框内选择恰当的句子 , 并将其字母标号填入对话相应的空白处，使对话完整，合乎情景。（有两个多余选项 ) Jack: Was the concert good? Sadie: 【 1 】 Jack: Why are you angry then? 【 2 】 Sadie: Well, after the concert I waited outside the theatre—in the rain. I wanted
查看题目详情 →
九年级·英语·单词拼写Unit 1 Daming wasn’t chosen for the team last time.
请用适当的介词填空 【1】The players are training ______ the coming school sports meeting. 【2】The score now is six ______ ten. 【3】My sister was mad ______ me because I broke her glasses. 【4】I hope I can play tennis ______ the Olympi
查看题目详情 →
九年级·英语·选择题Unit 1 Daming wasn’t chosen for the team last time.
They didn't ______ the game. Instead they were ______.
查看题目详情 →
九年级·英语·选择题Unit 1 Daming wasn’t chosen for the team last time.
—I have finished all you told me to do. —______, boy!
查看题目详情 →
九年级·英语·选择题Unit 1 Daming wasn’t chosen for the team last time.
—What does CCTV stand ______? —China Central Television.
查看题目详情 →
九年级·英语·选择题Unit 3 Language in use
You can go and play football when your work ______．
查看题目详情 →
九年级·英语·选择题Unit 3 Language in use
Stone can be ______ building houses．
查看题目详情 →
九年级·英语·选择题Unit 3 Language in use
I think Edison is one of the greatest ______．
查看题目详情 →
九年级·英语·选择题Unit 3 Language in use
The air conditioning is ______ Qingdao．
查看题目详情 →
九年级·英语·选择题Unit 3 Language in use
This type of MP4 is my favourite，but I can't ______ it．
查看题目详情 →
九年级·英语·句型转换Unit 3 Language in use
Ⅰ、句型转换 【 1 】 We heat and cook with coal ．（改为同义句） We ______ coal ______ heat and cook ． 【 2 】 We will fill the hole with water and earth ．（改为被动语态） The hole ______ ______ ______ with water and earth by us ． 【 3 】 Music wil
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。